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  • UpdatePanel doesn't Refresh

    - by mrxrsd
    I have got a simple page with a HtmlInputHidden field. I use Javascript to update that value and, when posting back the page, I want to read the value of that HtmlInputHidden field. The Value property of that HtmlInputHidden field is on postback the default value (the value it had when the page was created, not the value reflected through the Javascript). I also tried to Register the HtmlInputHidden field with ScriptManager.RegisterHiddenField(Page, "MyHtmlImputHiddenField", "initialvalue") but it still only lets me read the 'initialvalue' even though I (through javascript) can inspect that the value has changed. I tried to hardcoded the rowid and, to my surprise, after postback gridview was exactly the same before the delete but the record was deleted from the database. (I´ve called the databind method). protected void gridViewDelete(object sender, GridViewDeleteEventArgs e) { bool bDelete = false; bool bCheck = false; if (hfControl.Value != "1") { // check relationship bCheck = validation_method(.......); if (bCheck) { bDelete = true; } } else { hfControl.Value = ""; bDelete = true; } if (bDelete) { //process delete } else { string script = string.Empty; script += " var x; "; script += " x = confirm('are u sure?'); "; script += " if (x){ " ; script += " document.getElementById('hfControl').value = '1'; "; script += " setTimeOut(__doPostBack('gridView','Delete$" + e.RowIndex + "'),0);"; script += " } "; ScriptManager.RegisterClientScriptBlock(this, Page.GetType() , "confirm" , script ,true); } }

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  • Deleting items from datagrid (xml)

    - by Tonz
    Hello, I have a datagrid buttoncolumn which acts as delete buttons for my xml nodes. The elements are simply displayed in a boundcolumn, so there names get displayed. Each item generated gets a unique id (each time one is made id+++). My question his how can i remove a item (the entire element node with that certain id) when i click on one of the buttons in the bound column? <root> <element id="0"> <name>One</name> </element> <element id="1"> <name>Two</name> </element> </root> protected void dg_DeleteCommand(object sender, DataGridCommandEventArgs e) { XmlFunctions.Remove(index); }/*dg_DeleteCommand*/ (function on other class, where all my xml methods are written) public static void Remove(string index) { XmlDocument XMLDoc = new XmlDocument(); XMLDoc.Load(XMLFile); XPathNavigator nav = XMLDoc.CreateNavigator(); var node = nav.SelectSingleNode("/test/one[@id='" +???+ "']"); node.DeleteSelf(); XMLDoc.Save(XMLFile); } Edit: added datagrid <asp:View ID="viewDelete" runat="server"> <asp:DataGrid ID="dgDelete runat="server" AutoGenerateColumns="False" OnDeleteCommand="dg_DeleteCommand"> <Columns> <asp:BoundColumn DataField="name" HeaderText="names" /> <asp:ButtonColumn ButtonType="PushButton" Text="Delete" CommandName="Delete" ></asp:ButtonColumn> </Columns> </asp:DataGrid> </asp:View>

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  • Hibernate many-to-many relationship

    - by Capitan
    I have two mapped types, related many-to-many. @Entity @Table(name = "students") public class Student{ ... @ManyToMany(fetch = FetchType.EAGER) @JoinTable( name = "students2courses", joinColumns = { @JoinColumn( name = "student_id", referencedColumnName = "_id") }, inverseJoinColumns = { @JoinColumn( name = "course_id", referencedColumnName = "_id") }) public Set<Course> getCourses() { return courses; } public void setCourses(Set<Course> courses) { this.courses = courses; } ... } __ @Entity @Table(name = "courses") public class Course{ ... @ManyToMany(fetch = FetchType.EAGER, mappedBy = "courses") public Set<Student> getStudents() { return students; } public void setStudents(Set<Student> students) { this.students = students; } ... } But if I update/delete Course entity, records are not created/deleted in table students2courses. (with Student entity updating/deleting goes as expected) I wrote abstract class HibObject public abstract class HibObject { public String getRemoveMTMQuery() { return null; } } which is inherited by Student and Course. In DAO I added this code (for delete() method): String query = obj.getRemoveMTMQuery(); if (query != null) { session.createSQLQuery(query).executeUpdate(); } and I ovrerided method getRemoveMTMQuery() for Course @Override @Transient public String getRemoveMTMQuery() { return "delete from students2courses where course_id = " + id + ";"; } Now it works but I think it's a bad code. Is there a best way to solve this problem?

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  • runtime error "out of memory"+excel macro

    - by user356180
    hi experts. i have one macro,which i called when cell change. this macro select images and delete them and insert another image depending on cell value using following code. i have same code for two sheets. Private Sub Worksheet_SelectionChange(ByVal Target As Range) ActiveSheet.Shapes.SelectAll Selection.Delete 'insert image code here. End Sub in one sheet its working perfectly fine and delete all images while in other sheet , it give me runtime error "out of memory" and highlight following line. ActiveSheet.Shapes.SelectAll can any one tell me why this is happening? it works perfectly fine in one and not in other. one other thing i want to tell you is. it was working fine when i gave this macro excel to my client,both sheets were working fine, suddenly after 2 days, he started getting error on one sheet on which he was working lot. dont know why this is happening. can anyone tell me whats reason and how to solved it?

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  • Is this an error in "More Effective C++" in Item28?

    - by particle128
    I encountered a question when I was reading the item28 in More Effective C++ .In this item, the author shows to us that we can use member template in SmartPtr such that the SmartPtr<Cassette> can be converted to SmartPtr<MusicProduct>. The following code is not the same as in the book,but has the same effect. #include <iostream> class Base{}; class Derived:public Base{}; template<typename T> class smart{ public: smart(T* ptr):ptr(ptr){} template<typename U> operator smart<U>() { return smart<U>(ptr); } ~smart(){delete ptr;} private: T* ptr; }; void test(const smart<Base>& ) {} int main() { smart<Derived> sd(new Derived); test(sd); return 0; } It indeed can be compiled without compilation error. But when I ran the executable file, I got a core dump. I think that's because the member function of the conversion operator makes a temporary smart, which has a pointer to the same ptr in sd (its type is smart<Derived>). So the delete directive operates twice. What's more, after calling test, we can never use sd any more, since ptr in sd has already been delete. Now my questions are : Is my thought right? Or my code is not the same as the original code in the book? If my thought is right, is there any method to do this? Thanks very much for your help.

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  • Deleted array value still showing up on foreach loop in AS3 (bug in flash?)

    - by nexus
    It took me many hours to narrow down a problem in some code to this reproducible error, which seems to me like a bug in AVM2. Can anyone shed light on why this is occurring or how to fix it? When the value at index 1 is deleted and a value is subsequently set at index 0, the non-existent (undefined) value at index 1 will now show up in a foreach loop. I have only been able to produce this outcome with index 1 and 0 (not any other n and n-1). Run this code: package { import flash.display.Sprite; public class Main extends Sprite { public function Main():void { var bar : Array = new Array(6); out(bar); //proper behavior trace("bar[1] = 1", bar[1] = 1); out(bar); //proper behavior trace("delete bar[1]", delete bar[1]); out(bar); //proper behavior trace("bar[4] = 4", bar[4] = 4); out(bar); //for each loop will now iterate over the undefined position at index 1 trace("bar[0] = 0", bar[0] = 0); out(bar); trace("bar[3] = 3", bar[3] = 3); out(bar); } private function out(bar:Array):void { trace(bar); for each(var i : * in bar) { trace(i); } } } } It will give this output: ,,,,, bar[1] = 1 1 ,1,,,, 1 delete bar[1] true ,,,,, bar[4] = 4 4 ,,,,4, 4 bar[0] = 0 0 0,,,,4, 0 undefined 4 bar[3] = 3 3 0,,,3,4, 0 undefined 4 3

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  • How can I secure my $_GETs in PHP?

    - by ggfan
    My profile.php displays all the user's postings,comments,pictures. If the user wants to delete, it sends the posting's id to the remove.php so it's like remove.php?action=removeposting&posting_id=2. If they want to remove a picture, it's remove.php?action=removepicture&picture_id=1. Using the get data, I do a query to the database to display the info they want to delete and if they want to delete it, they click "yes". So the data is deleted via $POST NOT $GET to prevent cross-site request forgery. My question is how do I make sure the GETs are not some javascript code, sql injection that will mess me up. here is my remove.php //how do I make $action safe? //should I use mysqli_real_escape_string? //use strip_tags()? $action=trim($_GET['action']); if (($action != 'removeposting') && ($action != 'removefriend') && ($action != 'removecomment')) { echo "please don't change the action. go back and refresh"; header("Location: index.php"); exit(); } if ($action == 'removeposting') { //get the info and display it in a form. if user clicks "yes", deletes } if ($action =='removepicture') { //remove pic } I know I can't be 100% safe, but what are some common defenses I can use. EDIT Do this to prevent xss $action=trim($_GET['action']); htmlspecialchars(strip_tags($action)); Then when I am 'recalling' the data back via POST, I would use $posting_id = mysqli_real_escape_string($dbc, trim($_POST['posting_id']));

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  • Differentiate Between UITableView Editing States?

    - by Josh Kahane
    I have been looking at trying to differentiate between editing states in my UITableView. I need to call a method only when in editing mode after tapping the edit button, so when you get your cell slide in and you see the little circular delete icons but NOT when the user swipes to delete. Is there anyway I can differentiate between the two? Thanks. EDIT: Solution thanks to Rodrigo Both each cell and the entire tableview has an 'editing' BOOL value, so I loop through all the cells and if more than one of them is editing then we know the whole table is (the user tapped the edit button), however if only one is editing then we know that the user has swiped a cell, editing that individual one, this lets me deal with each editing state individually! - (void)setEditing:(BOOL)editing animated:(BOOL)animated { [super setEditing:editing animated:animated]; int i = 0; //When editing loop through cells and hide status image so it doesn't block delete controls. Fade back in when done editing. for (customGuestCell *cell in self.tableView.visibleCells) { if (cell.isEditing) { i += 1; } } if (i > 1) { for (customGuestCell *cell in self.tableView.visibleCells) { if (editing) { // loop through the visible cells and animate their imageViews [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.4]; cell.statusImg.alpha = 0; [UIView commitAnimations]; } } } else if (!editing) { for (customGuestCell *cell in self.tableView.visibleCells) { [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:0.4]; cell.statusImg.alpha = 1.0; [UIView commitAnimations]; } } }

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  • self-destructing objects in php5?

    - by user151841
    I am working on a class in php that is basically an interface to a database row. I wanted to create a delete() method that would 1. delete the database row and 2. destroy the instance of itself so that further attempts to manipulate the row via the object would throw warnings. Doing some googling, it seems that, in php5, it's not possible for an object to unset itself. http://bugs.php.net/bug.php?id=36971 In fact they discuss the very situation I was wanting to do :( So how should I proceed? I could make boolean flag as a class property, for whether the row still exists, and have each operation check that flag and throw an error if the row has been deleted. This maintains the oo structure of code, so I would have $objDbRow->delete(); But then I have to put checks at the beginning of each method. Or, I could implement a __destruct method that deletes the row. But that would seem counter-intuitive to me; if I saw in code unset($objDbRow); All I would suspect that's happening is that the object is being discarded, not that a row is being deleted. So that to me would seem like bad practice.

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  • Empty vector of type <stuff*>

    - by bo23
    I have a vector populated with objects: std::vector<Stuff*> stuffVector; and am trying to delete all elements of it using a cleanup function void CleanUp() { for (std::vector<Stuff*>::size_type i = 0 ; i < stuffVector.size() ; i++) { stuffVector.erase(stuffVector.begin()+i); } cout << stuffVector.size() << endl; if (stuffVector.size() == 0) cout << "Vector Emptied" << endl; } This always reports back with a size of however many objects are in the vector, and doesn't actually seem to delete anything at all. It's odd as a similar function works elsewhere to delete a specific object from the vector: void DestroyStuff() { if (stuffVector.size() > 1) { for (std::vector<Stuff*>::size_type i = 0 ; i < stuffVector.size() ; i++ ) { if(stuffVector[i]->CanDestroy()) { stuffVector.erase (stuffVector.begin()+i); } } } } The above works fine, but CleanUp() does not. Why might this be happening?

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  • Magento - Add CMS Block to One Page

    - by a1anm
    I have this code in a xml layout file: <reference name="left"> <block type="blog/blog" name="left.blog.menu" before="-"> <action method="setTemplate" ifconfig="blog/menu/left"> <template>aw_blog/menu.phtml</template> </action> <block type="blog/tags" name="blog_tags" /> </block> </reference> I want to add a cms static block to the blog pages using this code: <block type="cms/block" name="brand_list"> <action method="setBlockId"><block_id>brand_list</block_id></action> </block> If I add it in directly after this line: <reference name="left"> It works but it is then displayed on every page. How can I get it to show only on the blog pages? Thanks. Edit: Here is the entire xml file: <layout version="0.1.0"> <default> <reference name="footer_links"> <block type="blog/blog" name="add.blog.footer"> <block type="blog/tags" name="blog_tags" /> <action method="addFooterLink" ifconfig="blog/menu/footer"></action> </block> </reference> <reference name="right"> <block type="blog/blog" name="right.blog.menu" before="-"> <action method="setTemplate" ifconfig="blog/menu/right" ifvalue="1"> <template>aw_blog/menu.phtml</template> </action> <block type="blog/tags" name="blog_tags" /> </block> </reference> <reference name="left"> <block type="blog/blog" name="left.blog.menu" before="-"> <action method="setTemplate" ifconfig="blog/menu/left"> <template>aw_blog/menu.phtml</template> </action> <block type="blog/tags" name="blog_tags" /> </block> </reference> <reference name="top.links"> <block type="blog/blog" name="add.blog.link"> <action method="addTopLink" ifconfig="blog/menu/top"></action> <block type="blog/tags" name="blog_tags" /> </block> </reference> <reference name="head"> <action method="addItem"><type>skin_css</type><name>aw_blog/css/style.css</name></action> </reference> </default> <blog_index_index> <reference name="content"> <block type="blog/blog" name="blog" template="aw_blog/blog.phtml"/> </reference> </blog_index_index> <blog_index_list> <reference name="content"> <block type="blog/blog" name="blog" template="aw_blog/blog.phtml"/> </reference> </blog_index_list> <blog_post_view> <reference name="content"> <block type="blog/post" name="post" template="aw_blog/post.phtml"> <block type="socialbookmarking/bookmarks" name="bookmarks" template="bookmarks/bookmarks.phtml"/> </block> </reference> </blog_post_view> <blog_cat_view> <reference name="content"> <block type="blog/cat" name="cat" template="aw_blog/cat.phtml" /> </reference> </blog_cat_view> <blog_rss_index> <block type="blog/rss" output="toHtml" name="rss.blog.new"/> </blog_rss_index> </layout>

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  • AddHandler not working?

    - by EdenMachine
    I can't figure out why my addhandler is not firing? In the Sub "CreateTagStyle" thd AddHandler is to firing when the LinkButton is clicked Is there some reason that addhandlers can't be adding at certain points of the page lifecycle? <%@ Page Title="" Language="VB" MasterPageFile="~/_Common/Admin.master" %> <script runat="server"> Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) End Sub Protected Sub RadGrid1_NeedDataSource(ByVal source As Object, ByVal e As Telerik.Web.UI.GridNeedDataSourceEventArgs) If Not e.IsFromDetailTable Then Dim forms As New MB.RequestFormPacket() RadGrid1.DataSource = forms.GetPackets() End If End Sub Protected Sub RadGrid1_DetailTableDataBind(ByVal source As Object, ByVal e As Telerik.Web.UI.GridDetailTableDataBindEventArgs) Select Case e.DetailTableView.Name Case "gtvForms" Dim PacketID As Guid = e.DetailTableView.ParentItem.GetDataKeyValue("ID") e.DetailTableView.DataSource = MB.RequestForm.GetRequestForms(PacketID) End Select End Sub Protected Sub RadGrid1_InsertCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) If IsValid Then Select Case TryCast(e.Item.NamingContainer.NamingContainer, GridTableView).Name Case "gtvPackets" Dim rtbName As RadTextBox = TryCast(e.Item.FindControl("rtbName"), RadTextBox) Dim IsActive As Boolean = TryCast(e.Item.FindControl("cbxIsActive"), CheckBox).Checked Dim packet As New MB.RequestFormPacket() packet.Name = rtbName.Text packet.IsActive = IsActive packet.Insert() e.Canceled = True e.Item.OwnerTableView.IsItemInserted = False RadGrid1.Rebind() System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "SuccessMessage('Request Form Packet has been added successfully.');", True) Case "gtvForms" Dim parentItem As GridDataItem = e.Item.OwnerTableView.ParentItem Dim rcbForms As RadComboBox = TryCast(e.Item.FindControl("rcbForms"), RadComboBox) Dim rf As New MB.RequestForm() rf.RequestFormPacketID = CType(parentItem.OwnerTableView.DataKeyValues(parentItem.ItemIndex)("ID"), Guid) rf.FormID = rcbForms.SelectedValue If MB.RequestFormPacket.HasItems(rf.RequestFormPacketID) Then rf.SortOrder = rf.MaxSortOrder + 1 Else rf.SortOrder = 0 End If rf.Insert() e.Canceled = True e.Item.OwnerTableView.IsItemInserted = False TryCast(e.Item.NamingContainer.NamingContainer, GridTableView).Rebind() End Select End If End Sub Protected Sub RadGrid1_UpdateCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) If IsValid Then Select Case TryCast(e.Item.NamingContainer, GridTableView).Name Case "gtvPackets" Dim PacketID As Guid = CType(CType(e.CommandSource, Button).NamingContainer, GridEditFormItem).GetDataKeyValue("ID") Dim Name As String = TryCast(e.Item.FindControl("rtbName"), RadTextBox).Text Dim Tags As String = TryCast(e.Item.FindControl("hdnTags"), HiddenField).Value Dim IsActive As Boolean = TryCast(e.Item.FindControl("cbxIsActive"), CheckBox).Checked Dim rfp As New MB.RequestFormPacket() rfp.Update(PacketID, Name, IsActive) Call MB.RequestFormPacketTag.Insert(PacketID, Tags) e.Item.Edit = False TryCast(e.Item.NamingContainer, GridTableView).Rebind() System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "SuccessMessage('Request Form Packet has been updated successfully.');", True) Case "gtvForms" Dim RequestFormID As Guid = CType(CType(e.CommandSource, Button).NamingContainer, GridEditFormItem).GetDataKeyValue("ID") Dim rcbForms As RadComboBox = TryCast(e.Item.FindControl("rcbForms"), RadComboBox) Dim rf As New MB.RequestForm() rf.Update(RequestFormID, rcbForms.SelectedValue) e.Item.Edit = False TryCast(e.Item.NamingContainer, GridTableView).Rebind() End Select End If End Sub Protected Sub RadGrid1_DeleteCommand(ByVal source As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Dim editedItem As GridEditableItem = TryCast(e.Item, GridEditableItem) Select Case CType(editedItem.Parent.Parent, GridTableView).Name Case "gtvPackets" Dim ID As Guid = CType(CType(e.CommandSource, ImageButton).NamingContainer, GridDataItem).GetDataKeyValue("ID") MB.RequestFormPacket.Delete(ID) System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "NotifyMessage('Request Form Packet has been deleted.');", True) Case "gtvForms" Dim ID As Guid = CType(CType(e.CommandSource, ImageButton).NamingContainer, GridDataItem).GetDataKeyValue("ID") MB.RequestForm.Delete(ID) System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "NotifyMessage('Request Form has been removed.');", True) End Select End Sub Protected Sub ibnItemUpArrow_Command(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.CommandEventArgs) Dim gtv As GridTableView = CType(CType(sender, ImageButton).NamingContainer.NamingContainer, GridTableView) Dim ID As Guid = New Guid(e.CommandArgument.ToString()) Call MB.RequestForm.MoveUp(ID) gtv.Rebind() End Sub Protected Sub ibnItemDownArrow_Command(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.CommandEventArgs) Dim gtv As GridTableView = CType(CType(sender, ImageButton).NamingContainer.NamingContainer, GridTableView) Dim ID As Guid = New Guid(e.CommandArgument.ToString()) Call MB.RequestForm.MoveDown(ID) gtv.Rebind() End Sub Protected Sub RadGrid1_RowDrop(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridDragDropEventArgs) If String.IsNullOrEmpty(e.HtmlElement) Then If e.DraggedItems(0).OwnerGridID = RadGrid1.ClientID Then If e.DestDataItem IsNot Nothing Then Dim gtv As GridTableView = CType(e.DestDataItem.NamingContainer, GridTableView) For Each gdi As GridDataItem In e.DraggedItems Select Case gtv.Name Case "gtvForms" MB.RequestForm.DragAndDropReorder(gdi.GetDataKeyValue("ID"), e.DestDataItem.GetDataKeyValue("ID"), IIf(e.DropPosition = GridItemDropPosition.Above, True, False)) gtv.Rebind() End Select Next End If End If End If End Sub Protected Sub cbxAllowDragAndDrop_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Dim cbx As CheckBox = CType(sender, CheckBox) If cbx.Checked Then RadGrid1.ClientSettings.AllowRowsDragDrop = True RadGrid1.ClientSettings.Selecting.AllowRowSelect = True RadGrid1.ClientSettings.Selecting.EnableDragToSelectRows = True Else RadGrid1.ClientSettings.AllowRowsDragDrop = False RadGrid1.ClientSettings.Selecting.AllowRowSelect = False RadGrid1.ClientSettings.Selecting.EnableDragToSelectRows = False End If End Sub Protected Sub ibnDisableToggleProcess_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Dim ibn As ImageButton = CType(sender, ImageButton) Dim hdn As HiddenField = CType(ibn.NamingContainer.FindControl("hdnDisableProcessID"), HiddenField) Dim status As Boolean = MB.RequestFormPacket.ActivateToggle(New Guid(hdn.Value)) Dim gtv As GridTableView = CType(ibn.NamingContainer.NamingContainer, GridTableView) gtv.Rebind() System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "SuccessMessage('Process has been " & IIf(status, "Activated", "Deactivated") & ".');", True) End Sub Protected Function DisplayTagList(ByVal tags As IEnumerable(Of MB.RequestFormPacketTag)) As String Dim list As String = "" For Each t As MB.RequestFormPacketTag In tags list += "<span class=""tags"">" & t.Tag.Name & "</span>" Next Return list End Function Protected Sub RadGrid1_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Select Case e.Item.GetType.Name Case "GridEditFormInsertItem" 'do nothing Case "GridEditFormItem" Dim plh As PlaceHolder = CType(e.Item.FindControl("plhTags"), PlaceHolder) Dim hdn As HiddenField = CType(e.Item.FindControl("hdnTags"), HiddenField) If hdn IsNot Nothing Then Dim gefi As GridEditFormItem = e.Item Dim packet As MB.RequestFormPacket = gefi.DataItem For Each pt As MB.RequestFormPacketTag In packet.RequestFormPacketTags Call CreateTagStyle(plh, hdn, pt.Tag.Name) If hdn.Value = "" Then hdn.Value = "|" End If hdn.Value += pt.Tag.Name & "|" Next End If End Select End Sub Protected Sub btnAddTag_Click(ByVal sender As Object, ByVal e As System.EventArgs) Dim btnAddTag As Button = sender Dim rtbTags As RadTextBox = btnAddTag.NamingContainer.FindControl("rtbTags") Dim plhTags As PlaceHolder = btnAddTag.NamingContainer.FindControl("plhTags") Dim hdnTags As HiddenField = btnAddTag.NamingContainer.FindControl("hdnTags") Dim TagExists As Boolean = False rtbTags.Text = rtbTags.Text.ToUpper().Trim() Dim currentTags() As String = Split(hdnTags.Value, "|") For i As Integer = 1 To currentTags.Count - 2 Call CreateTagStyle(plhTags, hdnTags, currentTags(i)) Next If TagExists = False And String.IsNullOrEmpty(rtbTags.Text) = False Then Call CreateTagStyle(plhTags, hdnTags, rtbTags.Text) If String.IsNullOrEmpty(hdnTags.Value) Then hdnTags.Value = "|" End If hdnTags.Value += rtbTags.Text & "|" 'System.Web.UI.ScriptManager.RegisterStartupScript(Me.Page, Me.GetType(), "ClientMessage", "highlightTag('" & lbn.ClientID & "');", True) End If rtbTags.Text = "" rtbTags.Focus() End Sub Public Sub RemoveTag(ByVal sender As Object, ByVal e As EventArgs) Response.End() Dim lbnSender As LinkButton = sender Dim plhTags As PlaceHolder = lbnSender.NamingContainer.FindControl("plhTags") Dim hdnTags As HiddenField = lbnSender.NamingContainer.FindControl("hdnTags") Response.Write(hdnTags.Value) Response.End() Dim TagExists As Boolean = False Dim currentTags() As String = Split(hdnTags.Value, "|") For i As Integer = 1 To currentTags.Count - 2 Call CreateTagStyle(plhTags, hdnTags, currentTags(i)) Next End Sub Protected Sub CreateTagStyle(ByVal plh As PlaceHolder, ByVal hdn As HiddenField, ByVal tagName As String) Dim lbn As New LinkButton() lbn.ID = "lbn_" & hdn.ClientID & "_" & tagName lbn.CssClass = "deleteCreateTag" lbn.Text = "X" AddHandler lbn.Click, AddressOf RemoveTag plh.Controls.Add(New LiteralControl("<div><span class=showTag>" & tagName & "</span>")) plh.Controls.Add(lbn) plh.Controls.Add(New LiteralControl("</div>")) End Sub </script> <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"> <style type="text/css"> .tags { border:solid 1px #93AFE5; background-color:#F3F7F8; margin: 0px 2px 0px 2px; padding: 0px 4px 0px 4px; font-family:Verdana; font-size:10px; text-transform:uppercase; } </style> <script type="text/javascript"> function highlightTag(id) { $("#" + id).highlightFade({ color: '#FFFF99', speed: 2000, iterator: 'sinusoidal' }); } </script> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> <telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" DefaultLoadingPanelID="RadAjaxLoadingPanel1" EnableAJAX="false"> <AjaxSettings> <telerik:AjaxSetting AjaxControlID="RadGrid1"> <UpdatedControls> <telerik:AjaxUpdatedControl ControlID="RadGrid1" /> </UpdatedControls> </telerik:AjaxSetting> </AjaxSettings> </telerik:RadAjaxManager> <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" /> <telerik:RadTabStrip ID="RadTabStrip1" runat="server" Skin="WebBlue" style="position:relative;top:1px;" ValidationGroup="vgTabs"> <Tabs> <telerik:RadTab Text="Request Form Packets" Selected="true" ImageUrl="~/Admin/Images/Packet2.png" /> <telerik:RadTab Text="Request Forms" NavigateUrl="Forms.aspx" ImageUrl="~/Admin/Images/Forms.png" /> </Tabs> </telerik:RadTabStrip> <asp:ObjectDataSource ID="odsForms" runat="server" TypeName="MB.Form" SelectMethod="GetForms" /> <asp:Panel ID="pnlContent" runat="server" CssClass="ContentPanel"> <telerik:RadGrid ID="RadGrid1" runat="server" AllowPaging="True" AllowSorting="True" GridLines="None" OnNeedDataSource="RadGrid1_NeedDataSource" AllowAutomaticUpdates="true" AllowAutomaticDeletes="true" AllowAutomaticInserts="true" OnInsertCommand="RadGrid1_InsertCommand" OnUpdateCommand="RadGrid1_UpdateCommand" OnDeleteCommand="RadGrid1_DeleteCommand" OnRowDrop="RadGrid1_RowDrop" OnDetailTableDataBind="RadGrid1_DetailTableDataBind" OnItemDataBound="RadGrid1_ItemDataBound"> <%-----------------------------------------------------------%> <%------------------------- PACKETS -------------------------%> <%-----------------------------------------------------------%> <MasterTableView AutoGenerateColumns="False" DataKeyNames="ID" ClientDataKeyNames="ID" ShowHeadersWhenNoRecords="true" Name="gtvPackets" NoMasterRecordsText="There are currently no Request Form Packets" GroupLoadMode="Client" RetrieveNullAsDBNull="true" CommandItemDisplay="Top" AllowAutomaticUpdates="true" AllowAutomaticDeletes="true" AllowAutomaticInserts="true"> <RowIndicatorColumn> <HeaderStyle Width="20px"></HeaderStyle> </RowIndicatorColumn> <ExpandCollapseColumn> <HeaderStyle Width="20px"></HeaderStyle> </ExpandCollapseColumn> <CommandItemTemplate> <table width="100%"> <tr> <td class="AdminGridHeader">&nbsp;<img src="../Admin/Images/Packet2.png" align="absmiddle" width="16" height="16" />&nbsp;&nbsp;Request Form Packets</td> <td width="1%"><asp:CheckBox ID="cbxAllowDragAndDrop" runat="server" AutoPostBack="true" OnCheckedChanged="cbxAllowDragAndDrop_CheckedChanged" /></td> <td width="1%" nowrap="nowrap"><asp:Label AssociatedControlID="cbxAllowDragAndDrop" ID="Label1" runat="server" Text="Enable Drag and Drop Reordering" ToolTip="Drag and Drop Reordering applies only to Forms." /></td> <td align="right" width="1%"><asp:Button ID="btnAddPacket" Text="Create New Packet" runat="server" CommandName="InitInsert" /></td> </tr> </table> </CommandItemTemplate> <EditFormSettings> <EditColumn ButtonType="PushButton" HeaderStyle-Font-Bold="true" UniqueName="EditCommandColumn" /> </EditFormSettings> <EditItemStyle Font-Bold="true" BackColor="#FFFFCC" /> <Columns> <telerik:GridTemplateColumn HeaderText="Packet Name" UniqueName="PacketName" SortExpression="Name"> <ItemTemplate> <img src="../Admin/Images/Packet2.png" align="absmiddle" width="16" height="16" />&nbsp;&nbsp;<%#Eval("Name")%> </ItemTemplate> <EditItemTemplate> <telerik:RadTextBox runat="server" ID="rtbName" Width="300" Text='<%# Bind("Name") %>' /> <asp:RequiredFieldValidator ID="rfvName" runat="server" ErrorMessage="Required" ControlToValidate="rtbName" /> </EditItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn HeaderText="Tags" UniqueName="Tags"> <ItemTemplate> <%#DisplayTagList(Eval("RequestFormPacketTags"))%> </ItemTemplate> <EditItemTemplate> <asp:Panel ID="pnlAddTags" runat="server" DefaultButton="btnAddTag"> <table cellpadding="0" cellspacing="0"> <tr> <td> <telerik:RadTextBox ID="rtbTags" runat="server" Width="200" style="text-transform:uppercase;" /> <asp:RegularExpressionValidator ID="revTags" runat="server" ErrorMessage="Invalid Entry" ControlToValidate="rtbTags" Display="Dynamic" ValidationExpression="^[^<>`~!/@\#}$%:;)(_^{&*=|+]+$" ValidationGroup="vgTags" /> </td> <td> <asp:Button ID="btnAddTag" runat="server" ValidationGroup="vgTags" Text="Add" OnClick="btnAddTag_Click" /> </td> </tr> </table> </asp:Panel> <div id="divTags"> <asp:PlaceHolder id="plhTags" runat="server" /> <asp:HiddenField ID="hdnTags" runat="server" /> </div> </EditItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn HeaderTooltip="Disable" ItemStyle-Width="1%" ItemStyle-HorizontalAlign="Center" SortExpression="IsActive" UniqueName="IsActive" ReadOnly="true"> <ItemTemplate> <asp:ImageButton ID="ibnDisabledProcess" runat="server" ImageUrl="../Images/Icons/Stop.png" Width="16" OnClientClick="return window.confirm('Activate this Process?');" ToolTip="Click to activate this Request for Account use." Visible='<%#IIF(Eval("IsActive"),false,true) %>' OnClick="ibnDisableToggleProcess_Click" /> <asp:ImageButton ID="ibnEnabledProcess" runat="server" ImageUrl="../Images/Icons/Stop_disabled.png" Width="16" OnClientClick="return window.confirm('Deactivate this Process?');" ToolTip="Click to deactivate this Request for Account use." Visible='<%#IIF(Eval("IsActive"),true,false) %>' OnClick="ibnDisableToggleProcess_Click" /> <asp:HiddenField ID="hdnDisableProcessID" runat="server" Value='<%#Eval("ID") %>' /> </ItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn HeaderText="Is Active" UniqueName="IsActiveCheckbox" Display="false"> <EditItemTemplate> <asp:CheckBox ID="cbxIsActive" runat="server" Checked='<%# IIF(Eval("IsActive") Is DbNull.Value OrElse Eval("IsActive") = False,False,True) %>' /> </EditItemTemplate> </telerik:GridTemplateColumn> <telerik:GridEditCommandColumn ButtonType="ImageButton" EditText="Edit Admin" ItemStyle-Width="16" EditImageUrl="~/Images/edit-small.png" /> <telerik:GridButtonColumn ConfirmText="Do you really want to delete this Admin? WARNING: THIS CANNOT BE UNDONE!!" ConfirmDialogType="RadWindow" ConfirmTitle="Delete" ButtonType="ImageButton" CommandName="Delete" Text="Delete Admin" ImageUrl="~/Images/Delete.png" UniqueName="DeleteColumn"> <ItemStyle HorizontalAlign="Center" Width="16" /> </telerik:GridButtonColumn> </Columns> <DetailTables> <%-----------------------------------------------------------%> <%-------------------------- FORMS --------------------------%> <%-----------------------------------------------------------%> <telerik:GridTableView Name="gtvForms" AllowPaging="true" PagerStyle-Position="TopAndBottom" PageSize="20" AutoGenerateColumns="false" DataKeyNames="RequestFormPacketID,ID" runat="server" CommandItemDisplay="Top" Width="100%"> <ParentTableRelation> <telerik:GridRelationFields DetailKeyField="RequestFormPacketID" MasterKeyField="ID" /> </ParentTableRelation> <CommandItemTemplate> <table width="100%" class="AdminGridHeaders"> <tr> <td class="AdminGridHeaders"> &nbsp;<img src="../Admin/Images/Forms.png" align="absmiddle" width="16" height="16" />&nbsp;&nbsp;Forms </td> <td align="right"> <asp:Button ID="ibnAdd" runat="server" Text="Add Form" CommandName="InitInsert" /> </td> </tr> </table> </CommandItemTemplate> <EditFormSettings> <EditColumn ButtonType="PushButton" InsertText="Save" UpdateText="Update" CancelText="Cancel" /> </EditFormSettings> <EditItemStyle Font-Bold="true" BackColor="#FFFFCC" /> <Columns> <telerik:GridTemplateColumn HeaderText="Form Name" UniqueName="FormName"> <ItemTemplate> <img src="../Admin/Images/Forms.png" align="absmiddle" width="16" height="16" style="margin-right:4px;" /> <%#Eval("Form.Name")%> </ItemTemplate> <EditItemTemplate> <telerik:RadComboBox ID="rcbForms" runat="server" DataSourceID="odsForms" AppendDataBoundItems="true" DataTextField="Name" DataValueField="ID" SelectedValue='<%#Bind("FormID")%>'> <Items> <telerik:RadComboBoxItem Text="-- Select a Form --" Value="" /> </Items> </telerik:RadComboBox> <asp:RequiredFieldValidator ID="rfvForms" runat="server" ErrorMessage="Required" ControlToValidate="rcbForms" InitialValue="-- Select a Form --" Display="Dynamic" /> </EditItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn HeaderText="Test" ReadOnly="true" UniqueName="TestForm" HeaderStyle-Width="1%" ItemStyle-HorizontalAlign="Center"> <ItemTemplate> <asp:HyperLink ID="hypTestForm" runat="server" NavigateUrl='<%# "FormsPreview.aspx?fid=" & Eval("FormID").ToString() & "&test=true" %>' Target="_blank"><asp:Image ID="imgTestProcess" runat="server" ImageUrl="~/Admin/Images/Test.png" ImageAlign="AbsMiddle" ToolTip="Test Form" /></asp:HyperLink> </ItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn HeaderText="Header" SortExpression="Header" UniqueName="Header"> <ItemTemplate> <%#Eval("Form.Header")%>&nbsp; </ItemTemplate> </telerik:GridTemplateColumn> <telerik:GridTemplateColumn ReadOnly="true" ItemStyle-HorizontalAlign="Center" HeaderStyle-Width="1%" HeaderStyle-Wrap="false" ItemStyle-Wrap="false" UniqueName="SortOrder"> <ItemTemplate> <asp:ImageButton ID="ibnItemUpArrow" runat="server" Width="16" height="16" ImageUrl="~/Admin/Images/ArrowUp.png" ImageAlign="AbsMiddle" Visible='<%#IIF(Eval("SortOrder") = 0,false,true) %>' CommandArgument='<%#Eval("ID") %>' OnCommand=

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  • JPA/Hibernate Embedded id

    - by RoD
    I would like to do something like that: An object ReportingFile that can be a LogRequest or a LogReport file. ( both got the same structure) An object Reporting containing for one logRequest, a list of logReport with a date. I tryed to set an EmbededId, that would be an attribute of the logRequest. And that's the problem i got. I don't arrive to mannage embedded id. ( http://docs.jboss.org/hibernate/stable/annotations/reference/en/html_single/#entity-mapping-identifier ) If you have a clue on how i should do it :) An example (not working) would be: @Entity @AssociationOverride( name="logRequest.fileName", joinColumns = { @JoinColumn(name="log_request_file_name") } ) public class Reporting { @EmbeddedId private ReportingFile logRequest; @CollectionOfElements(fetch = FetchType.EAGER) @JoinTable(name = "t_reports", schema="", joinColumns = {@JoinColumn(name = "log_report")}) @Fetch(FetchMode.SELECT) private List<ReportingFile> reports; @Column(name="generated_date",nullable=true) private Date generatedDate; [...] } @Embeddable public class ReportingFile { @Column(name="file_name",length=255) private String fileName; @Column(name="xml_content") private Clob xmlContent; [...] } In this sample, i have a the following error: 15.03.2010 16:37:59 [ERROR] org.springframework.web.context.ContextLoader Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0' defined in class path resource [config/persistenceContext.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [config/persistenceContext.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: test] Unable to configure EntityManagerFactory at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:480) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:881) at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:597) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:366) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4350) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:578) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [config/persistenceContext.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: test] Unable to configure EntityManagerFactory at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1337) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:308) at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:270) at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators(PersistenceExceptionTranslationInterceptor.java:122) at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.<init>(PersistenceExceptionTranslationInterceptor.java:78) at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor.<init>(PersistenceExceptionTranslationAdvisor.java:70) at org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor.setBeanFactory(PersistenceExceptionTranslationPostProcessor.java:97) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1325) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473) ... 29 more Caused by: javax.persistence.PersistenceException: [PersistenceUnit: test] Unable to configure EntityManagerFactory at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:265) at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:125) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83) at org.springframework.orm.jpa.LocalEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalEntityManagerFactoryBean.java:91) at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:291) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1368) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1334) ... 46 more Caused by: org.hibernate.AnnotationException: A Foreign key refering Reporting from Reporting has the wrong number of column. should be 2 at org.hibernate.cfg.annotations.TableBinder.bindFk(TableBinder.java:272) at org.hibernate.cfg.annotations.CollectionBinder.bindCollectionSecondPass(CollectionBinder.java:1319) at org.hibernate.cfg.annotations.CollectionBinder.bindManyToManySecondPass(CollectionBinder.java:1158) at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:600) at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:541) at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:43) at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1140) at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:319) at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1125) at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1226) at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:159) at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:854) at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:191) at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:253) ... 52 more

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  • General type conversion without risking Exceptions

    - by Mongus Pong
    I am working on a control that can take a number of different datatypes (anything that implements IComparable). I need to be able to compare these with another variable passed in. If the main datatype is a DateTime, and I am passed a String, I need to attempt to convert the String to a DateTime to perform a Date comparison. if the String cannot be converted to a DateTime then do a String comparison. So I need a general way to attempt to convert from any type to any type. Easy enough, .Net provides us with the TypeConverter class. Now, the best I can work out to do to determine if the String can be converted to a DateTime is to use exceptions. If the ConvertFrom raises an exception, I know I cant do the conversion and have to do the string comparison. The following is the best I got : string theString = "99/12/2009"; DateTime theDate = new DateTime ( 2009, 11, 1 ); IComparable obj1 = theString as IComparable; IComparable obj2 = theDate as IComparable; try { TypeConverter converter = TypeDescriptor.GetConverter ( obj2.GetType () ); if ( converter.CanConvertFrom ( obj1.GetType () ) ) { Console.WriteLine ( obj2.CompareTo ( converter.ConvertFrom ( obj1 ) ) ); Console.WriteLine ( "Date comparison" ); } } catch ( FormatException ) { Console.WriteLine ( obj1.ToString ().CompareTo ( obj2.ToString () ) ); Console.WriteLine ( "String comparison" ); } Part of our standards at work state that : Exceptions should only be raised when an Exception situation - ie. an error is encountered. But this is not an exceptional situation. I need another way around it. Most variable types have a TryParse method which returns a boolean to allow you to determine if the conversion has succeeded or not. But there is no TryConvert method available to TypeConverter. CanConvertFrom only dermines if it is possible to convert between these types and doesnt consider the actual data to be converted. The IsValid method is also useless. Any ideas? EDIT I cannot use AS and IS. I do not know either data types at compile time. So I dont know what to As and Is to!!! EDIT Ok nailed the bastard. Its not as tidy as Marc Gravells, but it works (I hope). Thanks for the inpiration Marc. Will work on tidying it up when I get the time, but I've got a bit stack of bugfixes that I have to get on with. public static class CleanConverter { /// <summary> /// Stores the cache of all types that can be converted to all types. /// </summary> private static Dictionary<Type, Dictionary<Type, ConversionCache>> _Types = new Dictionary<Type, Dictionary<Type, ConversionCache>> (); /// <summary> /// Try parsing. /// </summary> /// <param name="s"></param> /// <param name="value"></param> /// <returns></returns> public static bool TryParse ( IComparable s, ref IComparable value ) { // First get the cached conversion method. Dictionary<Type, ConversionCache> type1Cache = null; ConversionCache type2Cache = null; if ( !_Types.ContainsKey ( s.GetType () ) ) { type1Cache = new Dictionary<Type, ConversionCache> (); _Types.Add ( s.GetType (), type1Cache ); } else { type1Cache = _Types[s.GetType ()]; } if ( !type1Cache.ContainsKey ( value.GetType () ) ) { // We havent converted this type before, so create a new conversion type2Cache = new ConversionCache ( s.GetType (), value.GetType () ); // Add to the cache type1Cache.Add ( value.GetType (), type2Cache ); } else { type2Cache = type1Cache[value.GetType ()]; } // Attempt the parse return type2Cache.TryParse ( s, ref value ); } /// <summary> /// Stores the method to convert from Type1 to Type2 /// </summary> internal class ConversionCache { internal bool TryParse ( IComparable s, ref IComparable value ) { if ( this._Method != null ) { // Invoke the cached TryParse method. object[] parameters = new object[] { s, value }; bool result = (bool)this._Method.Invoke ( null, parameters); if ( result ) value = parameters[1] as IComparable; return result; } else return false; } private MethodInfo _Method; internal ConversionCache ( Type type1, Type type2 ) { // Use reflection to get the TryParse method from it. this._Method = type2.GetMethod ( "TryParse", new Type[] { type1, type2.MakeByRefType () } ); } } }

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  • Error when Eclipse started and now my package explorer is empty!

    - by carpenteri
    Friends, Just a quick introduction, I'm currently learning Java, using a combination of the Head First Java book and Eclipse. Everything was going well until tonight! When I started up Eclipse tonight, I saw an error message which I didn't pay attention to (I know! I know!) and acknowledged after which the project explorer was empty where it used to contain my Head First project! After a quick "google" I found the workspace.metadata.log and the errors are shown below. The version of Eclipse I am using is: 20100218-1602 and the only plugin that I use is egit. Any help would be much appreciated. Thanks !SESSION 2010-06-08 19:24:33.841 ----------------------------------------------- eclipse.buildId=unknown java.version=1.5.0_22 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_GB Framework arguments: -product org.eclipse.epp.package.java.product Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.java.product !ENTRY org.eclipse.ui.workbench 4 2 2010-06-08 19:24:36.475 !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench". !STACK 1 org.eclipse.ui.WorkbenchException: Content is not allowed in prolog. at org.eclipse.ui.XMLMemento.createReadRoot(XMLMemento.java:121) at org.eclipse.ui.XMLMemento.createReadRoot(XMLMemento.java:64) at org.eclipse.ui.internal.Workbench$49.run(Workbench.java:1895) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.Workbench.restoreState(Workbench.java:1890) at org.eclipse.ui.internal.WorkbenchConfigurer.restoreState(WorkbenchConfigurer.java:183) at org.eclipse.ui.application.WorkbenchAdvisor$1.run(WorkbenchAdvisor.java:781) Caused by: org.xml.sax.SAXParseException: Content is not allowed in prolog. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:264) at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292) at org.eclipse.ui.XMLMemento.createReadRoot(XMLMemento.java:94) ... 6 more !SUBENTRY 1 org.eclipse.ui 4 0 2010-06-08 19:24:36.475 !MESSAGE Content is not allowed in prolog. !STACK 0 org.xml.sax.SAXParseException: Content is not allowed in prolog. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:264) at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292) at org.eclipse.ui.XMLMemento.createReadRoot(XMLMemento.java:94) at org.eclipse.ui.XMLMemento.createReadRoot(XMLMemento.java:64) at org.eclipse.ui.internal.Workbench$49.run(Workbench.java:1895) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.Workbench.restoreState(Workbench.java:1890) at org.eclipse.ui.internal.WorkbenchConfigurer.restoreState(WorkbenchConfigurer.java:183) at org.eclipse.ui.application.WorkbenchAdvisor$1.run(WorkbenchAdvisor.java:781) !SUBENTRY 1 org.eclipse.ui 4 0 2010-06-08 19:24:36.475 !MESSAGE Content is not allowed in prolog. !STACK 0 org.xml.sax.SAXParseException: Content is not allowed in prolog. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:264) at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292) at org.eclipse.ui.XMLMemento.createReadRoot(XMLMemento.java:94) at org.eclipse.ui.XMLMemento.createReadRoot(XMLMemento.java:64) at org.eclipse.ui.internal.Workbench$49.run(Workbench.java:1895) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.Workbench.restoreState(Workbench.java:1890) at org.eclipse.ui.internal.WorkbenchConfigurer.restoreState(WorkbenchConfigurer.java:183) at org.eclipse.ui.application.WorkbenchAdvisor$1.run(WorkbenchAdvisor.java:781) !ENTRY org.eclipse.jdt.ui 4 10001 2010-06-08 19:24:41.442 !MESSAGE Internal Error !STACK 1 org.eclipse.jdt.internal.ui.JavaUIException: Problems reading information from XML 'OpenTypeHistory.xml' at org.eclipse.jdt.internal.corext.util.History.createException(History.java:70) at org.eclipse.jdt.internal.corext.util.History.load(History.java:257) at org.eclipse.jdt.internal.corext.util.History.load(History.java:166) at org.eclipse.jdt.internal.corext.util.OpenTypeHistory.<init>(OpenTypeHistory.java:199) at org.eclipse.jdt.internal.corext.util.OpenTypeHistory.getInstance(OpenTypeHistory.java:185) at org.eclipse.jdt.internal.ui.JavaPlugin.initializeAfterLoad(JavaPlugin.java:381) at org.eclipse.jdt.internal.ui.InitializeAfterLoadJob$RealJob.run(InitializeAfterLoadJob.java:36) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: org.xml.sax.SAXParseException: Content is not allowed in prolog. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:264) at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292) at org.eclipse.jdt.internal.corext.util.History.load(History.java:255) ... 6 more !SUBENTRY 1 org.eclipse.jdt.ui 4 4 2010-06-08 19:24:41.442 !MESSAGE Problems reading information from XML 'OpenTypeHistory.xml' !STACK 0 org.xml.sax.SAXParseException: Content is not allowed in prolog. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:264) at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292) at org.eclipse.jdt.internal.corext.util.History.load(History.java:255) at org.eclipse.jdt.internal.corext.util.History.load(History.java:166) at org.eclipse.jdt.internal.corext.util.OpenTypeHistory.<init>(OpenTypeHistory.java:199) at org.eclipse.jdt.internal.corext.util.OpenTypeHistory.getInstance(OpenTypeHistory.java:185) at org.eclipse.jdt.internal.ui.JavaPlugin.initializeAfterLoad(JavaPlugin.java:381) at org.eclipse.jdt.internal.ui.InitializeAfterLoadJob$RealJob.run(InitializeAfterLoadJob.java:36) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) !ENTRY org.eclipse.jdt.ui 4 10001 2010-06-08 19:24:50.435 !MESSAGE Internal Error !STACK 1 org.eclipse.jdt.internal.ui.JavaUIException: Problems reading information from XML 'QualifiedTypeNameHistory.xml' at org.eclipse.jdt.internal.corext.util.History.createException(History.java:70) at org.eclipse.jdt.internal.corext.util.History.load(History.java:257) at org.eclipse.jdt.internal.corext.util.History.load(History.java:166) at org.eclipse.jdt.internal.corext.util.QualifiedTypeNameHistory.<init>(QualifiedTypeNameHistory.java:33) at org.eclipse.jdt.internal.corext.util.QualifiedTypeNameHistory.getDefault(QualifiedTypeNameHistory.java:26) at org.eclipse.jdt.internal.ui.JavaPlugin.stop(JavaPlugin.java:602) at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:843) at java.security.AccessController.doPrivileged(Native Method) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.stop(BundleContextImpl.java:836) at org.eclipse.osgi.framework.internal.core.BundleHost.stopWorker(BundleHost.java:474) at org.eclipse.osgi.framework.internal.core.AbstractBundle.suspend(AbstractBundle.java:546) at org.eclipse.osgi.framework.internal.core.Framework.suspendBundle(Framework.java:1098) at org.eclipse.osgi.framework.internal.core.StartLevelManager.decFWSL(StartLevelManager.java:593) at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:261) at org.eclipse.osgi.framework.internal.core.StartLevelManager.shutdown(StartLevelManager.java:216) at org.eclipse.osgi.framework.internal.core.InternalSystemBundle.suspend(InternalSystemBundle.java:266) at org.eclipse.osgi.framework.internal.core.Framework.shutdown(Framework.java:685) at org.eclipse.osgi.framework.internal.core.Framework.close(Framework.java:583) at org.eclipse.core.runtime.adaptor.EclipseStarter.shutdown(EclipseStarter.java:409) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:200) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:592) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514) at org.eclipse.equinox.launcher.Main.run(Main.java:1311) Caused by: org.xml.sax.SAXParseException: Content is not allowed in prolog. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:264) at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292) at org.eclipse.jdt.internal.corext.util.History.load(History.java:255) ... 25 more !SUBENTRY 1 org.eclipse.jdt.ui 4 4 2010-06-08 19:24:50.435 !MESSAGE Problems reading information from XML 'QualifiedTypeNameHistory.xml' !STACK 0 org.xml.sax.SAXParseException: Content is not allowed in prolog. at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:264) at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292) at org.eclipse.jdt.internal.corext.util.History.load(History.java:255) at org.eclipse.jdt.internal.corext.util.History.load(History.java:166) at org.eclipse.jdt.internal.corext.util.QualifiedTypeNameHistory.<init>(QualifiedTypeNameHistory.java:33) at org.eclipse.jdt.internal.corext.util.QualifiedTypeNameHistory.getDefault(QualifiedTypeNameHistory.java:26) at org.eclipse.jdt.internal.ui.JavaPlugin.stop(JavaPlugin.java:602) at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:843) at java.security.AccessController.doPrivileged(Native Method) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.stop(BundleContextImpl.java:836) at org.eclipse.osgi.framework.internal.core.BundleHost.stopWorker(BundleHost.java:474) at org.eclipse.osgi.framework.internal.core.AbstractBundle.suspend(AbstractBundle.java:546) at org.eclipse.osgi.framework.internal.core.Framework.suspendBundle(Framework.java:1098) at org.eclipse.osgi.framework.internal.core.StartLevelManager.decFWSL(StartLevelManager.java:593) at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:261) at org.eclipse.osgi.framework.internal.core.StartLevelManager.shutdown(StartLevelManager.java:216) at org.eclipse.osgi.framework.internal.core.InternalSystemBundle.suspend(InternalSystemBundle.java:266) at org.eclipse.osgi.framework.internal.core.Framework.shutdown(Framework.java:685) at org.eclipse.osgi.framework.internal.core.Framework.close(Framework.java:583) at org.eclipse.core.runtime.adaptor.EclipseStarter.shutdown(EclipseStarter.java:409) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:200) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:592) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514) at org.eclipse.equinox.launcher.Main.run(Main.java:1311)

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  • JPA/Hibernate Embedded id and fields

    - by RoD
    I would like to do something like that: An object ReportingFile that can be a LogRequest or a LogReport file. ( both got the same structure) An object Reporting containing for one logRequest, a list of logReport with a date. An example (not working) would be: @Entity @AssociationOverride( name="logRequest.fileName", joinColumns = { @JoinColumn(name="log_request_file_name") } ) public class Reporting { @EmbeddedId private ReportingFile logRequest; @CollectionOfElements(fetch = FetchType.EAGER) @JoinTable(name = "t_reports", schema="", joinColumns = {@JoinColumn(name = "log_report")}) @Fetch(FetchMode.SELECT) private List<ReportingFile> reports; @Column(name="generated_date",nullable=true) private Date generatedDate; [...] } @Embeddable public class ReportingFile { @Column(name="file_name",length=255) private String fileName; @Column(name="xml_content") private Clob xmlContent; [...] } In this sample, i have a the following error: 15.03.2010 16:37:59 [ERROR] org.springframework.web.context.ContextLoader Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor#0' defined in class path resource [config/persistenceContext.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [config/persistenceContext.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: test] Unable to configure EntityManagerFactory at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:480) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:881) at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:597) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:366) at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:255) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:199) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4350) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:516) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:578) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [config/persistenceContext.xml]: Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: test] Unable to configure EntityManagerFactory at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1337) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409) at java.security.AccessController.doPrivileged(Native Method) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:308) at org.springframework.beans.factory.BeanFactoryUtils.beansOfTypeIncludingAncestors(BeanFactoryUtils.java:270) at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.detectPersistenceExceptionTranslators(PersistenceExceptionTranslationInterceptor.java:122) at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.<init>(PersistenceExceptionTranslationInterceptor.java:78) at org.springframework.dao.annotation.PersistenceExceptionTranslationAdvisor.<init>(PersistenceExceptionTranslationAdvisor.java:70) at org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor.setBeanFactory(PersistenceExceptionTranslationPostProcessor.java:97) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1325) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:473) ... 29 more Caused by: javax.persistence.PersistenceException: [PersistenceUnit: test] Unable to configure EntityManagerFactory at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:265) at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:125) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:83) at org.springframework.orm.jpa.LocalEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalEntityManagerFactoryBean.java:91) at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:291) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1368) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1334) ... 46 more Caused by: org.hibernate.AnnotationException: A Foreign key refering Reporting from Reporting has the wrong number of column. should be 2 at org.hibernate.cfg.annotations.TableBinder.bindFk(TableBinder.java:272) at org.hibernate.cfg.annotations.CollectionBinder.bindCollectionSecondPass(CollectionBinder.java:1319) at org.hibernate.cfg.annotations.CollectionBinder.bindManyToManySecondPass(CollectionBinder.java:1158) at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:600) at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:541) at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:43) at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1140) at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:319) at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1125) at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1226) at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:159) at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:854) at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:191) at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:253) ... 52 more

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  • JSF 2.0: java based custom component + html table + facelets = data model not updated

    - by mikic
    Hi, I'm having problems getting the data model of a HtmlDataTable to be correctly updated by JSF 2.0 and Facelets. I have created a custom Java-based component that extends HtmlDataTable and dynamically adds columns in the encodeBegin method. @Override public void encodeBegin(FacesContext context) throws IOException { if (this.findComponent("c0") == null) { for (int i = 0; i < 3; i++) { HtmlColumn myNewCol = new HtmlColumn(); myNewCol.setId("c" + i); HtmlInputText myNewText = new HtmlInputText(); myNewText.setId("t" + i); myNewText.setValue("#{row[" + i + "]}"); myNewCol.getChildren().add(myNewText); this.getChildren().add(myNewCol); } } super.encodeBegin(context); } My test page contains the following <h:form id="fromtb"> <test:MatrixTest id="tb" var="row" value="#{MyManagedBean.model}"> </test:MatrixTest> <h:commandButton id="btn" value="Set" action="#{MyManagedBean.mergeInput}"/> </h:form> <h:outputText id="mergedInput" value="#{MyManagedBean.mergedInput}"/> My managed bean class contains the following @ManagedBean(name="MyManagedBean") @SessionScoped public class MyManagedBean { private List model = null; private String mergedInput = null; public MyManagedBean() { model = new ArrayList(); List myFirst = new ArrayList(); myFirst.add(""); myFirst.add(""); myFirst.add(""); model.add(myFirst); List mySecond = new ArrayList(); mySecond.add(""); mySecond.add(""); mySecond.add(""); model.add(mySecond); } public String mergeInput() { StringBuffer myMergedInput = new StringBuffer(); for (Object object : model) { myMergedInput.append(object); } setMergedInput(myMergedInput.toString()); return null; } public List getModel() { return model; } public void setModel(List model) { this.model = model; } public String getMergedInput() { return mergedInput; } public void setMergedInput(String mergedInput) { this.mergedInput = mergedInput; } When invoked, the page is correctly rendered with a table made of 3 columns (added at runtime) and 2 rows (as my data model has 2 rows). However when the user enter some data in the input fields and then click the submit button, the model is not correctly updated and therefore the mergeInput() method creates a sequence of empty strings which is rendered on the same page. I have added some logging to the decode() method of my custom component and I can see that the parameters entered by the user are being posted back with the request, however these parameters are not used to update the data model. If I update the encodeBegin() method of my custom component as follow @Override public void encodeBegin(FacesContext context) throws IOException { super.encodeBegin(context); } and I update the test page as follow <test:MatrixTest id="tb" var="row" value="#{MyManagedBean.model}"> <h:column id="c0"><h:inputText id="t0" value="#{row[0]}"/></h:column> <h:column id="c1"><h:inputText id="t1" value="#{row[1]}"/></h:column> <h:column id="c2"><h:inputText id="t2" value="#{row[2]}"/></h:column> </test:MatrixTest> the page is correctly rendered and this time when the user enters data and submits the form, the underlying data model is correctly updated and the mergeInput() method creates a sequence of strings with the user data. Why does the test case with columns declared in the facelet page works correctly (ie the data model is correctly updated by JSF) where the same does not happen when the columns are created at runtime using the encodeBegin() method? Is there any method I need to invoke or interface I need to extend in order to ensure the data model is correctly updated? I am using this test case to address the issue that is appearing in a much more complex component, therefore I can't achieve the same functionality using a facelet composite component. Please note that this has been done using NetBeans 6.8, JRE 1.6.0u18, GlassFish 3.0. Thanks for your help.

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  • Generic Http Module

    - by MartinF
    The problem I am trying to make a generic http module in asp.net C# for handling roles defined by an enum which i want to be able to change by a generic parameter. This will make it possible to use the generic module with any kind of enum defined for each project. The module hooks into the Authenticate event of the FormsAuthenticationModule, and is called on each request to the website. The module exposes public events which could be defined in the global.asax. But i cant seem to figure out how to make the generic http module work like a non generic module. There is 3 main problems. I cant register the generic http module in the web.config like any other module as i cant specify the generic parameter, or is possible somehow ? The way to solve that as far as i can figure out is to create a non-generic http module that intializes the generic HttpModule (the generic parameter is defined in a custom section for the module in the web.config). But that introduces the next problem. I cant find out how to make the public events exposed by the generic module available to hook into through the global.asax as you would normally do with a non-generic module by just making a public method with the name like ModuleClassName_PublicEventName. The init() method on the http module gets an reference to the HttpApplication object created in the global.asax. I dont know if it somehow could be possible with reflection to search for the methods and if they are defined in the global.asax (HttpApplication super class) hook them up with the correct event handler ? or if any methods on the HttpApplication object can be used? How would i store and later get a reference to the generic module created in the non-generic module ? I can get the non-generic module with HttpContext.Current.ApplicationInstance.Modules.Get("TheModule"); but is there any way i can store a reference to the generic module in the non-generic module (cant figure out how it should be possible), or store it somewhere else so i can always get it? If I can get a reference to the generic module from the global.asax etc. the events mentioned in nr. 2 can be manually wired to the methods. Thoughts and other possible solutions Instead of registering the module in the web.config it can be manually initialized by overridding the Init method of the HttpApplication and calling the Init method on the module. But that will introduce some new problems. The module will no longer be added to the the ModulesCollection. So I will need to store a reference somewhere else. This could be done with a property in the global.asax, and by implementing an interface, or by creating an generic abstract base type inheriting from HttpApplication, that the global.asax could inherit from. In the generic abstract base type i could also override the init method. It will still not automatically hook up methods in the global.asax with events in the generic module. If it is possible with reflection to search for defined methods in the super type of the HttpApplication it could be automatically done that way. But i can wire the methods in the global.asax with the events in the generic module manually either in the Init method or anywhere else by getting reference to the generic module. It doesnst really need to implement the IHttpModule interface if i choose to manually initalize the generic module. I could just aswell move all the code to the abstract base type inheriting from the HttpApplication. I would prefer to register the module simply by defining it in the web.config as it will be the easiest and most natural / logical solution. Also it would be great if it could be kept as a HttpModule instead of having to define a an abstract base type inheriting from HttpApplication, else it will be more thighed up and not as loose and plugable as i wanted it to be (but maybe it is not possible). Another alternative would be to make it all static. As far as i can figure out i would have to somehow make sure that only one method can be added to the public static events, so it wont add a reference each time a new instance of the global.asax is created. I simply cant find out what is the best solution. I have been messing around with this and thinking about it for days now. Maybe there is an option that i havent thought of ? Hope anyone out there can help me.

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  • android.view.InflateException: Binary XML file line #11

    - by kostas
    i have a listview with some items.when the user touch the first list item it starts a dialog activity with a photo and some text below.that happens for every list item.but unfortunately i m getting this android.view.InflateException: Binary XML file line #11 force down error..this is a part of my manifest: <activity android:name=".kalamaki" android:label="Beaches in Chania" android:screenOrientation="portrait" android:configChanges="orientation|keyboardHidden" android:theme="@android:style/Theme.Dialog" /> this is my .xml file: <?xml version="1.0" encoding="utf-8"?> <ScrollView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#cfcfcc" > <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent"> <ImageView android:layout_marginTop="5px" android:id="@+id/image" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@+id/image" /> <TextView android:layout_marginTop="5px" android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@+id/text" android:textColor="#262626" /> </LinearLayout> </ScrollView> and this is my logcat error: 04-30 19:08:34.433: ERROR/AndroidRuntime(405): Uncaught handler: thread main exiting due to uncaught exception 04-30 19:08:34.463: ERROR/AndroidRuntime(405): java.lang.RuntimeException: Unable to start activity ComponentInfo{kostas.menu.chania/kostas.menu.chania.sfinari}: android.view.InflateException: Binary XML file line #11: Error inflating class <unknown> 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2454) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2470) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.app.ActivityThread.access$2200(ActivityThread.java:119) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1821) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.os.Handler.dispatchMessage(Handler.java:99) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.os.Looper.loop(Looper.java:123) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.app.ActivityThread.main(ActivityThread.java:4310) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at java.lang.reflect.Method.invokeNative(Native Method) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at java.lang.reflect.Method.invoke(Method.java:521) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at dalvik.system.NativeStart.main(Native Method) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): Caused by: android.view.InflateException: Binary XML file line #11: Error inflating class <unknown> 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.view.LayoutInflater.createView(LayoutInflater.java:513) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:563) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.view.LayoutInflater.rInflate(LayoutInflater.java:618) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.view.LayoutInflater.rInflate(LayoutInflater.java:621) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.view.LayoutInflater.inflate(LayoutInflater.java:407) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.view.LayoutInflater.inflate(LayoutInflater.java:320) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:198) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.app.Activity.setContentView(Activity.java:1622) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at kostas.menu.chania.sfinari.onCreate(sfinari.java:15) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2417) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): ... 11 more 04-30 19:08:34.463: ERROR/AndroidRuntime(405): Caused by: java.lang.reflect.InvocationTargetException 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.widget.ImageView.<init>(ImageView.java:105) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at java.lang.reflect.Constructor.constructNative(Native Method) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at java.lang.reflect.Constructor.newInstance(Constructor.java:446) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.view.LayoutInflater.createView(LayoutInflater.java:500) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): ... 23 more 04-30 19:08:34.463: ERROR/AndroidRuntime(405): Caused by: android.content.res.Resources$NotFoundException: File res/drawable-mdpi/scrollbar_handle_vertical.9.png from drawable resource ID #0x7f050000 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.content.res.Resources.loadDrawable(Resources.java:1710) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.content.res.TypedArray.getDrawable(TypedArray.java:548) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.widget.ImageView.<init>(ImageView.java:115) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): ... 27 more 04-30 19:08:34.463: ERROR/AndroidRuntime(405): Caused by: java.io.FileNotFoundException: res/drawable-mdpi/scrollbar_handle_vertical.9.png 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.content.res.AssetManager.openNonAssetNative(Native Method) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.content.res.AssetManager.openNonAsset(AssetManager.java:391) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): at android.content.res.Resources.loadDrawable(Resources.java:1702) 04-30 19:08:34.463: ERROR/AndroidRuntime(405): ... 29 more

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  • Accessing PerSession service simultaneously in WCF using C#

    - by krishna555
    1.) I have a main method Processing, which takes string as an arguments and that string contains some x number of tasks. 2.) I have another method Status, which keeps track of first method by using two variables TotalTests and CurrentTest. which will be modified every time with in a loop in first method(Processing). 3.) When more than one client makes a call parallely to my web service to call the Processing method by passing a string, which has different tasks will take more time to process. so in the mean while clients will be using a second thread to call the Status method in the webservice to get the status of the first method. 4.) when point number 3 is being done all the clients are supposed to get the variables(TotalTests,CurrentTest) parallely with out being mixed up with other client requests. 5.) The code that i have provided below is getting mixed up variables results for all the clients when i make them as static. If i remove static for the variables then clients are just getting all 0's for these 2 variables and i am unable to fix it. Please take a look at the below code. [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)] public class Service1 : IService1 { public int TotalTests = 0; public int CurrentTest = 0; public string Processing(string OriginalXmlString) { XmlDocument XmlDoc = new XmlDocument(); XmlDoc.LoadXml(OriginalXmlString); this.TotalTests = XmlDoc.GetElementsByTagName("TestScenario").Count; //finding the count of total test scenarios in the given xml string this.CurrentTest = 0; while(i<10) { ++this.CurrentTest; i++; } } public string Status() { return (this.TotalTests + ";" + this.CurrentTest); } } server configuration <wsHttpBinding> <binding name="WSHttpBinding_IService1" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="true" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> client configuration <wsHttpBinding> <binding name="WSHttpBinding_IService1" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="true" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> Below mentioned is my client code class Program { static void Main(string[] args) { Program prog = new Program(); Thread JavaClientCallThread = new Thread(new ThreadStart(prog.ClientCallThreadRun)); Thread JavaStatusCallThread = new Thread(new ThreadStart(prog.StatusCallThreadRun)); JavaClientCallThread.Start(); JavaStatusCallThread.Start(); } public void ClientCallThreadRun() { XmlDocument doc = new XmlDocument(); doc.Load(@"D:\t72CalculateReasonableWithdrawal_Input.xml"); bool error = false; Service1Client Client = new Service1Client(); string temp = Client.Processing(doc.OuterXml, ref error); } public void StatusCallThreadRun() { int i = 0; Service1Client Client = new Service1Client(); string temp; while (i < 10) { temp = Client.Status(); Thread.Sleep(1500); Console.WriteLine("TotalTestScenarios;CurrentTestCase = {0}", temp); i++; } } } Can any one please help.

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  • having issue while making the client calls persession in c# wcf

    - by krishna555
    1.) I have a main method Processing, which takes string as an arguments and that string contains some x number of tasks. 2.) I have another method Status, which keeps track of first method by using two variables TotalTests and CurrentTest. which will be modified every time with in a loop in first method(Processing). 3.) When more than one client makes a call parallely to my web service to call the Processing method by passing a string, which has different tasks will take more time to process. so in the mean while clients will be using a second thread to call the Status method in the webservice to get the status of the first method. 4.) when point number 3 is being done all the clients are supposed to get the variables(TotalTests,CurrentTest) parallely with out being mixed up with other client requests. 5.) The code that i have provided below is getting mixed up variables results for all the clients when i make them as static. If i remove static for the variables then clients are just getting all 0's for these 2 variables and i am unable to fix it. Please take a look at the below code. [ServiceBehavior(InstanceContextMode = InstanceContextMode.PerSession)] public class Service1 : IService1 { public int TotalTests = 0; public int CurrentTest = 0; public string Processing(string OriginalXmlString) { XmlDocument XmlDoc = new XmlDocument(); XmlDoc.LoadXml(OriginalXmlString); this.TotalTests = XmlDoc.GetElementsByTagName("TestScenario").Count; //finding the count of total test scenarios in the given xml string this.CurrentTest = 0; while(i<10) { ++this.CurrentTest; i++; } } public string Status() { return (this.TotalTests + ";" + this.CurrentTest); } } server configuration <wsHttpBinding> <binding name="WSHttpBinding_IService1" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="true" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> client configuration <wsHttpBinding> <binding name="WSHttpBinding_IService1" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" /> <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="true" /> <security mode="Message"> <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" /> <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" /> </security> </binding> </wsHttpBinding> Below mentioned is my client code class Program { static void Main(string[] args) { Program prog = new Program(); Thread JavaClientCallThread = new Thread(new ThreadStart(prog.ClientCallThreadRun)); Thread JavaStatusCallThread = new Thread(new ThreadStart(prog.StatusCallThreadRun)); JavaClientCallThread.Start(); JavaStatusCallThread.Start(); } public void ClientCallThreadRun() { XmlDocument doc = new XmlDocument(); doc.Load(@"D:\t72CalculateReasonableWithdrawal_Input.xml"); bool error = false; Service1Client Client = new Service1Client(); string temp = Client.Processing(doc.OuterXml, ref error); } public void StatusCallThreadRun() { int i = 0; Service1Client Client = new Service1Client(); string temp; while (i < 10) { temp = Client.Status(); Thread.Sleep(1500); Console.WriteLine("TotalTestScenarios;CurrentTestCase = {0}", temp); i++; } } } Can any one please help.

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  • Is there an equivalent to Java's ClassFileTransformer in .NET? (a way to replace a class)

    - by Alix
    I've been searching for this for quite a while with no luck so far. Is there an equivalent to Java's ClassFileTransformer in .NET? Basically, I want to create a class CustomClassFileTransformer (which in Java would implement the interface ClassFileTransformer) that gets called whenever a class is loaded, and is allowed to tweak it and replace it with the tweaked version. I know there are frameworks that do similar things, but I was looking for something more straightforward, like implementing my own ClassFileTransformer. Is it possible? EDIT #1. More details about why I need this: Basically, I have a C# application and I need to monitor the instructions it wants to run in order to detect read or write operations to fields (operations Ldfld and Stfld) and insert some instructions before the read/write takes place. I know how to do this (except for the part where I need to be invoked to replace the class): for every method whose code I want to monitor, I must: Get the method's MethodBody using MethodBase.GetMethodBody() Transform it to byte array with MethodBody.GetILAsByteArray(). The byte[] it returns contains the bytecode. Analyse the bytecode as explained here, possibly inserting new instructions or deleting/modifying existing ones by changing the contents of the array. Create a new method and use the new bytecode to create its body, with MethodBuilder.CreateMethodBody(byte[] il, int count), where il is the array with the bytecode. I put all these tweaked methods in a new class and use the new class to replace the one that was originally going to be loaded. An alternative to replacing classes would be somehow getting notified whenever a method is invoked. Then I'd replace the call to that method with a call to my own tweaked method, which I would tweak only the first time is invoked and then I'd put it in a dictionary for future uses, to reduce overhead (for future calls I'll just look up the method and invoke it; I won't need to analyse the bytecode again). I'm currently investigating ways to do this and LinFu looks pretty interesting, but if there was something like a ClassFileTransformer it would be much simpler: I just rewrite the class, replace it, and let the code run without monitoring anything. An additional note: the classes may be sealed. I want to be able to replace any kind of class, I cannot impose restrictions on their attributes. EDIT #2. Why I need to do this at runtime. I need to monitor everything that is going on so that I can detect every access to data. This applies to the code of library classes as well. However, I cannot know in advance which classes are going to be used, and even if I knew every possible class that may get loaded it would be a huge performance hit to tweak all of them instead of waiting to see whether they actually get invoked or not. POSSIBLE (BUT PRETTY HARDCORE) SOLUTION. In case anyone is interested (and I see the question has been faved, so I guess someone is), this is what I'm looking at right now. Basically I'd have to implement the profiling API and I'll register for the events that I'm interested in, in my case whenever a JIT compilation starts. An extract of the blogpost: In your ICorProfilerCallback2::ModuleLoadFinished callback, you call ICorProfilerInfo2::GetModuleMetadata to get a pointer to a metadata interface on that module. QI for the metadata interface you want. Search MSDN for "IMetaDataImport", and grope through the table of contents to find topics on the metadata interfaces. Once you're in metadata-land, you have access to all the types in the module, including their fields and function prototypes. You may need to parse metadata signatures and this signature parser may be of use to you. In your ICorProfilerCallback2::JITCompilationStarted callback, you may use ICorProfilerInfo2::GetILFunctionBody to inspect the original IL, and ICorProfilerInfo2::GetILFunctionBodyAllocator and then ICorProfilerInfo2::SetILFunctionBody to replace that IL with your own. The great news: I get notified when a JIT compilation starts and I can replace the bytecode right there, without having to worry about replacing the class, etc. The not-so-great news: you cannot invoke managed code from the API's callback methods, which makes sense but means I'm on my own parsing the IL code, etc, as opposed to be able to use Cecil, which would've been a breeze. I don't think there's a simpler way to do this without using AOP frameworks (such as PostSharp). If anyone has any other idea please let me know. I'm not marking the question as answered yet.

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  • What is correct HTTP status code when redirecting to a login page?

    - by PHP_Jedi
    When a user is not logged in and tries to access an page that requires login, what is the correct HTTP status code for a redirect to the login page? I don't feel that any of the 3xx fit that description. 10.3.1 300 Multiple Choices The requested resource corresponds to any one of a set of representations, each with its own specific location, and agent- driven negotiation information (section 12) is being provided so that the user (or user agent) can select a preferred representation and redirect its request to that location. Unless it was a HEAD request, the response SHOULD include an entity containing a list of resource characteristics and location(s) from which the user or user agent can choose the one most appropriate. The entity format is specified by the media type given in the Content- Type header field. Depending upon the format and the capabilities of the user agent, selection of the most appropriate choice MAY be performed automatically. However, this specification does not define any standard for such automatic selection. If the server has a preferred choice of representation, it SHOULD include the specific URI for that representation in the Location field; user agents MAY use the Location field value for automatic redirection. This response is cacheable unless indicated otherwise. 10.3.2 301 Moved Permanently The requested resource has been assigned a new permanent URI and any future references to this resource SHOULD use one of the returned URIs. Clients with link editing capabilities ought to automatically re-link references to the Request-URI to one or more of the new references returned by the server, where possible. This response is cacheable unless indicated otherwise. The new permanent URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s). If the 301 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued. Note: When automatically redirecting a POST request after receiving a 301 status code, some existing HTTP/1.0 user agents will erroneously change it into a GET request. 10.3.3 302 Found The requested resource resides temporarily under a different URI. Since the redirection might be altered on occasion, the client SHOULD continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires header field. The temporary URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s). If the 302 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued. Note: RFC 1945 and RFC 2068 specify that the client is not allowed to change the method on the redirected request. However, most existing user agent implementations treat 302 as if it were a 303 response, performing a GET on the Location field-value regardless of the original request method. The status codes 303 and 307 have been added for servers that wish to make unambiguously clear which kind of reaction is expected of the client. 10.3.4 303 See Other The response to the request can be found under a different URI and SHOULD be retrieved using a GET method on that resource. This method exists primarily to allow the output of a POST-activated script to redirect the user agent to a selected resource. The new URI is not a substitute reference for the originally requested resource. The 303 response MUST NOT be cached, but the response to the second (redirected) request might be cacheable. The different URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s). Note: Many pre-HTTP/1.1 user agents do not understand the 303 status. When interoperability with such clients is a concern, the 302 status code may be used instead, since most user agents react to a 302 response as described here for 303. 10.3.5 304 Not Modified If the client has performed a conditional GET request and access is allowed, but the document has not been modified, the server SHOULD respond with this status code. The 304 response MUST NOT contain a message-body, and thus is always terminated by the first empty line after the header fields. The response MUST include the following header fields: - Date, unless its omission is required by section 14.18.1 If a clockless origin server obeys these rules, and proxies and clients add their own Date to any response received without one (as already specified by [RFC 2068], section 14.19), caches will operate correctly. - ETag and/or Content-Location, if the header would have been sent in a 200 response to the same request - Expires, Cache-Control, and/or Vary, if the field-value might differ from that sent in any previous response for the same variant If the conditional GET used a strong cache validator (see section 13.3.3), the response SHOULD NOT include other entity-headers. Otherwise (i.e., the conditional GET used a weak validator), the response MUST NOT include other entity-headers; this prevents inconsistencies between cached entity-bodies and updated headers. If a 304 response indicates an entity not currently cached, then the cache MUST disregard the response and repeat the request without the conditional. If a cache uses a received 304 response to update a cache entry, the cache MUST update the entry to reflect any new field values given in the response. 10.3.6 305 Use Proxy The requested resource MUST be accessed through the proxy given by the Location field. The Location field gives the URI of the proxy. The recipient is expected to repeat this single request via the proxy. 305 responses MUST only be generated by origin servers. Note: RFC 2068 was not clear that 305 was intended to redirect a single request, and to be generated by origin servers only. Not observing these limitations has significant security consequences. 10.3.7 306 (Unused) The 306 status code was used in a previous version of the specification, is no longer used, and the code is reserved. 10.3.8 307 Temporary Redirect The requested resource resides temporarily under a different URI. Since the redirection MAY be altered on occasion, the client SHOULD continue to use the Request-URI for future requests. This response is only cacheable if indicated by a Cache-Control or Expires header field. The temporary URI SHOULD be given by the Location field in the response. Unless the request method was HEAD, the entity of the response SHOULD contain a short hypertext note with a hyperlink to the new URI(s) , since many pre-HTTP/1.1 user agents do not understand the 307 status. Therefore, the note SHOULD contain the information necessary for a user to repeat the original request on the new URI. If the 307 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued. I'm using 302 for now, until I find THE correct answer.

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  • JavaFX FXML communication between Application and Controller classes

    - by likethesky
    I am trying to get and destroy an external process I've created via ProcessBuilder in my FXML application close, but it's not working. This is based on the helpful advice Sergey Grinev gave me here. I have tried running with/without the "// myController.setApp(this);" and with "// super.stop();" at top of subclass and at bottom (see commented out/in for that line in MyApp), but no combination works. This probably isn't related to FXML or JavaFX, though I imagine this is a common pattern for developing apps on JavaFX. I suppose I'm asking for a Java best practice for closing dependent processes in a UI-based app like this one (in this case: FXML / JavaFX based), where there is a controller class and an application class. Can you explain what I'm doing wrong? Or better: advise what I should be doing instead? Thanks. In my Application I do this: public class MyApp extends Application { @Override public void start(Stage primaryStage) throws Exception { FXMLLoader fxmlLoader = new FXMLLoader(); Scene scene = (Scene)FXMLLoader.load(getClass().getResource("MyApp.fxml")); MyAppController myController = (MyAppController)fxmlLoader.getController(); primaryStage.setScene(scene); primaryStage.show(); // myController.setApp(this); } @Override public void stop() throws Exception { // super.stop(); // this is called on fx app close, you may call it in an action handler too if (MyAppController.getScriptProcess() != null) { MyAppController.getScriptProcess().destroy(); } super.stop(); } public static void main(String[] args) { launch(args); } } In my Controller I do this: public class MyAppController implements Initializable { private Application app; private static Process scriptProcess; public void setApp(Application a) { app = a; } public static Process getScriptProcess() { return scriptProcess; } } The result when I run with the "commented-out setApp()" not commented out (that is, left in the start method), is the following, immediately upon launch (the main Scene flashes, then disappears, then this dialog appears: "JavaFX Launcher Error: Exception while running Application" And it gives an, "Exception in Application start method" in the console as well. The result when I leave out the "commented-out code" in my MyApp above (that is, remove the "setApp()" from the start method), is that my app does indeed close, but gives this error when it closes: Exception in thread "JavaFX Application Thread" java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1440) at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:69) at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:217) at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:170) at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:38) at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:37) at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92) at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:35) at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92) at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:35) at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92) at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:53) at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:28) at javafx.event.Event.fireEvent(Event.java:171) at javafx.scene.Node.fireEvent(Node.java:6863) at javafx.scene.control.Button.fire(Button.java:179) at com.sun.javafx.scene.control.behavior.ButtonBehavior.mouseReleased(ButtonBehavior.java:193) at com.sun.javafx.scene.control.skin.SkinBase$4.handle(SkinBase.java:336) at com.sun.javafx.scene.control.skin.SkinBase$4.handle(SkinBase.java:329) at com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:64) at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:217) at com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:170) at com.sun.javafx.event.CompositeEventDispatcher.dispatchBubblingEvent(CompositeEventDispatcher.java:38) at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:37) at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92) at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:35) at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92) at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:35) at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92) at com.sun.javafx.event.BasicEventDispatcher.dispatchEvent(BasicEventDispatcher.java:35) at com.sun.javafx.event.EventDispatchChainImpl.dispatchEvent(EventDispatchChainImpl.java:92) at com.sun.javafx.event.EventUtil.fireEventImpl(EventUtil.java:53) at com.sun.javafx.event.EventUtil.fireEvent(EventUtil.java:33) at javafx.event.Event.fireEvent(Event.java:171) at javafx.scene.Scene$MouseHandler.process(Scene.java:3324) at javafx.scene.Scene$MouseHandler.process(Scene.java:3164) at javafx.scene.Scene$MouseHandler.access$1900(Scene.java:3119) at javafx.scene.Scene.impl_processMouseEvent(Scene.java:1559) at javafx.scene.Scene$ScenePeerListener.mouseEvent(Scene.java:2261) at com.sun.javafx.tk.quantum.GlassViewEventHandler.handleMouseEvent(GlassViewEventHandler.java:228) at com.sun.glass.ui.View.handleMouseEvent(View.java:528) at com.sun.glass.ui.View.notifyMouse(View.java:922) at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method) at com.sun.glass.ui.gtk.GtkApplication$3$1.run(GtkApplication.java:82) at java.lang.Thread.run(Thread.java:722) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:601) at javafx.fxml.FXMLLoader$ControllerMethodEventHandler.handle(FXMLLoader.java:1435) ... 44 more Caused by: java.lang.NullPointerException at mypackage.MyController.handleCancel(MyController.java:300) ... 49 more Clean up...

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  • Asp.NET custom templated datalist throws argument out of range (index) on button press

    - by MrTortoise
    I have a class BaseTemplate public abstract class BaseTemplate : ITemplate This adds the controls, and provides abstract methods to implement in the inheriting class. The inheriting class then adds its html according to its data source and manages the data binding. This all works fine - I get the control appearing with properly parsed html. The problem is that the base class adds controls into the template that have their own CommandName arguments; the idea is that the class that implements the custom templated dataList will provide the logic of setting the Selected and Edit Indexes. This class also manages the data binding, etc. It sets all of the templates on the datalist in the Init method (which was another cause of this exception). The exception gets thrown when I hit one of these buttons - I have tried hooking up both their click and command events everywhere in case this was the problem. I have also ensured that their command names do not match any of the system ones. The stack trace does not include any references to my methods or objects which is why I am so stuck. It is the most unhelpful message I can imagine. The really frustrating thing is that I cannot get a breakpoint to fire - i.e. the problem is happening after I click the button, but before and of my code can execute. The last time this exception happened was when I had this code in a user control and was assigning the templates to the datalist in the PageLoad. I moved these into init to fix that problem; however, this is a problem that was there then and I have no idea what is causing it let alone how to solve it (and index out of range doesn't really help without knowing what index.) The Exception Details Exception Details: System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values. Parameter name: index The Stack Trace: [ArgumentOutOfRangeException: Specified argument was out of the range of valid values. Parameter name: index] System.Web.UI.ControlCollection.get_Item(Int32 index) +8665582 System.Web.UI.WebControls.DataList.GetItem(ListItemType itemType, Int32 repeatIndex) +8667655 System.Web.UI.WebControls.DataList.System.Web.UI.WebControls.IRepeatInfoUser.GetItemStyle(ListItemType itemType, Int32 repeatIndex) +11 System.Web.UI.WebControls.RepeatInfo.RenderVerticalRepeater(HtmlTextWriter writer, IRepeatInfoUser user, Style controlStyle, WebControl baseControl) +8640873 System.Web.UI.WebControls.RepeatInfo.RenderRepeater(HtmlTextWriter writer, IRepeatInfoUser user, Style controlStyle, WebControl baseControl) +27 System.Web.UI.WebControls.DataList.RenderContents(HtmlTextWriter writer) +208 System.Web.UI.WebControls.BaseDataList.Render(HtmlTextWriter writer) +30 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27 System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19 System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +163 System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +32 System.Web.UI.HtmlControls.HtmlForm.Render(HtmlTextWriter output) +51 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27 System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99 System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +40 System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +134 System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19 System.Web.UI.Page.Render(HtmlTextWriter writer) +29 System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27 System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99 System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1266 The code Base class: public abstract class BaseTemplate : ITemplate { ListItemType _templateType; public BaseTemplate(ListItemType theTemplateType) { _templateType = theTemplateType; } public ListItemType ListItemType { get { return _templateType; } } #region ITemplate Members public void InstantiateIn(Control container) { PlaceHolder ph = new PlaceHolder(); container.Controls.Add(ph); Literal l = new Literal(); switch (_templateType) { case ListItemType.Header: { ph.Controls.Add(new LiteralControl(@"<table><tr>")); InstantiateInHeader(ph); ph.Controls.Add(new LiteralControl(@"</tr>")); break; } case ListItemType.Footer: { ph.Controls.Add(new LiteralControl(@"<tr>")); InstantiateInFooter(ph); ph.Controls.Add(new LiteralControl(@"</tr></table>")); break; } case ListItemType.Item: { ph.Controls.Add(new LiteralControl(@"<tr>")); InstantiateInItem(ph); ph.Controls.Add(new LiteralControl(@"<td>")); Button select = new Button(); select.ID = "btnSelect"; select.CommandName = "SelectRow"; select.Text = "Select"; ph.Controls.Add(select); ph.Controls.Add(new LiteralControl(@"</td>")); ph.Controls.Add(new LiteralControl(@"</tr>")); ph.DataBinding += new EventHandler(ph_DataBinding); break; } case ListItemType.AlternatingItem: { ph.Controls.Add(new LiteralControl(@"<tr>")); InstantiateInAlternatingItem(ph); ph.Controls.Add(new LiteralControl(@"<td>")); Button select = new Button(); select.ID = "btnSelect"; select.CommandName = "SelectRow"; select.Text = "Select"; ph.Controls.Add(select); ph.Controls.Add(new LiteralControl(@"</td>")); ph.Controls.Add(new LiteralControl(@"</tr>")); ph.DataBinding+=new EventHandler(ph_DataBinding); break; } case ListItemType.SelectedItem: { ph.Controls.Add(new LiteralControl(@"<tr>")); InstantiateInItem(ph); ph.Controls.Add(new LiteralControl(@"<td>")); Button edit = new Button(); edit.ID = "btnEdit"; edit.CommandName = "EditRow"; edit.Text = "Edit"; ph.Controls.Add(edit); Button delete = new Button(); delete.ID = "btnDelete"; delete.CommandName = "DeleteRow"; delete.Text = "Delete"; ph.Controls.Add(delete); ph.Controls.Add(new LiteralControl(@"</td>")); ph.Controls.Add(new LiteralControl(@"</tr>")); ph.DataBinding += new EventHandler(ph_DataBinding); break; } case ListItemType.EditItem: { ph.Controls.Add(new LiteralControl(@"<tr>")); InstantiateInEdit(ph); ph.Controls.Add(new LiteralControl(@"<td>")); Button save = new Button(); save.ID = "btnSave"; save.CommandName = "SaveRow"; save.Text = "Save"; ph.Controls.Add(save); Button cancel = new Button(); cancel.ID = "btnCancel"; cancel.CommandName = "CancelRow"; cancel.Text = "Cancel"; ph.Controls.Add(cancel); ph.Controls.Add(new LiteralControl(@"</td>")); ph.Controls.Add(new LiteralControl(@"</tr>")); ph.DataBinding += new EventHandler(ph_DataBinding); break; } case ListItemType.Separator: { InstantiateInSeperator(ph); break; } } } void ph_DataBinding(object sender, EventArgs e) { DataBindingOverride(sender, e); } /// <summary> /// the controls placed into the PlaceHolder will get wrapped in &lt;table&gt;&lt;tr&gt; &lt;/tr&gt;. I.e. you need to provide the column names wrapped in &lt;td&gt;&lt;/td&gt; tags. /// </summary> /// <param name="header"></param> public abstract void InstantiateInHeader(PlaceHolder ph); /// <summary> /// the controls will have a column added after them and so require each column to be properly wrapped in &lt;td&gt;&lt;/td&gt; tags. The &lt;tr&gt;&lt;/tr&gt; is handled in the base class. /// </summary> /// <param name="ph"></param> public abstract void InstantiateInItem(PlaceHolder ph); /// <summary> /// the controls will have a column added after them and so require each column to be properly wrapped in &lt;td&gt;&lt;/td&gt; tags. The &lt;tr&gt;&lt;/tr&gt; is handled in the base class. /// </summary> /// <param name="ph"></param> public abstract void InstantiateInAlternatingItem(PlaceHolder ph); /// <summary> /// the controls will have a column added after them and so require each column to be properly wrapped in &lt;td&gt;&lt;/td&gt; tags. The &lt;tr&gt;&lt;/tr&gt; is handled in the base class. /// </summary> /// <param name="ph"></param> public abstract void InstantiateInEdit(PlaceHolder ph); /// <summary> /// Any html used in the footer will have &lt;/tr&gt;&lt;table&gt; appended to the end. /// &lt;tr&gt; will be appended to the front. /// </summary> /// <param name="ph"></param> public abstract void InstantiateInFooter(PlaceHolder ph); /// <summary> /// the controls will have a column added after them and so require each column to be properly wrapped in &lt;td&gt;&lt;/td&gt; tags. The &lt;tr&gt;&lt;/tr&gt; is handled in the base class. /// Adds Delete and Edit Buttons after the table contents. /// </summary> /// <param name="ph"></param> public abstract void InstantiateInSelectedItem(PlaceHolder ph); /// <summary> /// The base class provides no &lt;tr&gt;&lt;/tr&gt; tags /// </summary> /// <param name="ph"></param> public abstract void InstantiateInSeperator(PlaceHolder ph); /// <summary> /// Use this method to bind the controls to their data. /// </summary> /// <param name="sender"></param> /// <param name="e"></param> public abstract void DataBindingOverride(object sender, EventArgs e); #endregion } Inheriting class: public class NominalGroupTemplate : BaseTemplate { public NominalGroupTemplate(ListItemType theListItemType) : base(theListItemType) { } public override void InstantiateInHeader(PlaceHolder ph) { ph.Controls.Add(new LiteralControl(@"<td>ID</td><td>Group</td><td>IsPositive</td>")); } public override void InstantiateInItem(PlaceHolder ph) { ph.Controls.Add(new LiteralControl(@"<td>")); Label lblID = new Label(); lblID.ID = "lblID"; ph.Controls.Add(lblID); ph.Controls.Add(new LiteralControl(@"</td><td>")); Label lblGroup = new Label(); lblGroup.ID = "lblGroup"; ph.Controls.Add(lblGroup); ph.Controls.Add(new LiteralControl(@"</td><td>")); CheckBox chkIsPositive = new CheckBox(); chkIsPositive.ID = "chkIsPositive"; chkIsPositive.Enabled = false; ph.Controls.Add(chkIsPositive); ph.Controls.Add(new LiteralControl(@"</td>")); } public override void InstantiateInAlternatingItem(PlaceHolder ph) { InstantiateInItem(ph); } public override void InstantiateInEdit(PlaceHolder ph) { ph.Controls.Add(new LiteralControl(@"<td>")); Label lblID = new Label(); lblID.ID = "lblID"; ph.Controls.Add(lblID); ph.Controls.Add(new LiteralControl(@"</td><td>")); TextBox txtGroup = new TextBox(); txtGroup.ID = "txtGroup"; txtGroup.Visible = true; txtGroup.Enabled = true ; ph.Controls.Add(txtGroup); ph.Controls.Add(new LiteralControl(@"</td><td>")); CheckBox chkIsPositive = new CheckBox(); chkIsPositive.ID = "chkIsPositive"; chkIsPositive.Visible = true; chkIsPositive.Enabled = true ; ph.Controls.Add(chkIsPositive); ph.Controls.Add(new LiteralControl(@"</td>")); } public override void InstantiateInFooter(PlaceHolder ph) { InstantiateInHeader(ph); } public override void InstantiateInSelectedItem(PlaceHolder ph) { ph.Controls.Add(new LiteralControl(@"<td>")); Label lblID = new Label(); lblID.ID = "lblID"; ph.Controls.Add(lblID); ph.Controls.Add(new LiteralControl(@"</td><td>")); TextBox txtGroup = new TextBox(); txtGroup.ID = "txtGroup"; txtGroup.Visible = true; txtGroup.Enabled = false; ph.Controls.Add(txtGroup); ph.Controls.Add(new LiteralControl(@"</td><td>")); CheckBox chkIsPositive = new CheckBox(); chkIsPositive.ID = "chkIsPositive"; chkIsPositive.Visible = true; chkIsPositive.Enabled = false; ph.Controls.Add(chkIsPositive); ph.Controls.Add(new LiteralControl(@"</td>")); } public override void InstantiateInSeperator(PlaceHolder ph) { } public override void DataBindingOverride(object sender, EventArgs e) { PlaceHolder ph = (PlaceHolder)sender; DataListItem li = (DataListItem)ph.NamingContainer; int id = Convert.ToInt32(DataBinder.Eval(li.DataItem, "ID")); string group = (string)DataBinder.Eval(li.DataItem, "Group"); bool isPositive = Convert.ToBoolean(DataBinder.Eval(li.DataItem, "IsPositive")); switch (this.ListItemType) { case ListItemType.Item: case ListItemType.AlternatingItem: { ((Label)ph.FindControl("lblID")).Text = id.ToString(); ((Label)ph.FindControl("lblGroup")).Text = group; ((CheckBox)ph.FindControl("chkIsPositive")).Text = isPositive.ToString(); break; } case ListItemType.EditItem: case ListItemType.SelectedItem: { ((TextBox)ph.FindControl("lblID")).Text = id.ToString(); ((TextBox)ph.FindControl("txtGroup")).Text = group; ((CheckBox)ph.FindControl("chkIsPositive")).Text = isPositive.ToString(); break; } } } } From here I added the control to a page the code behind public partial class NominalGroupbroke : System.Web.UI.UserControl { public void SetNominalGroupList(IList<BONominalGroup> theNominalGroups) { XElement data = Serialiser<BONominalGroup>.SerialiseObjectList(theNominalGroups); ViewState.Add("nominalGroups", data.ToString()); dlNominalGroup.DataSource = theNominalGroups; dlNominalGroup.DataBind(); } protected void Page_init() { dlNominalGroup.HeaderTemplate = new NominalGroupTemplate(ListItemType.Header); dlNominalGroup.ItemTemplate = new NominalGroupTemplate(ListItemType.Item); dlNominalGroup.AlternatingItemTemplate = new NominalGroupTemplate(ListItemType.AlternatingItem); dlNominalGroup.SeparatorTemplate = new NominalGroupTemplate(ListItemType.Separator); dlNominalGroup.SelectedItemTemplate = new NominalGroupTemplate(ListItemType.SelectedItem); dlNominalGroup.EditItemTemplate = new NominalGroupTemplate(ListItemType.EditItem); dlNominalGroup.FooterTemplate = new NominalGroupTemplate(ListItemType.Footer); } protected void Page_Load(object sender, EventArgs e) { dlNominalGroup.ItemCommand += new DataListCommandEventHandler(dlNominalGroup_ItemCommand); } void dlNominalGroup_Init(object sender, EventArgs e) { dlNominalGroup.HeaderTemplate = new NominalGroupTemplate(ListItemType.Header); dlNominalGroup.ItemTemplate = new NominalGroupTemplate(ListItemType.Item); dlNominalGroup.AlternatingItemTemplate = new NominalGroupTemplate(ListItemType.AlternatingItem); dlNominalGroup.SeparatorTemplate = new NominalGroupTemplate(ListItemType.Separator); dlNominalGroup.SelectedItemTemplate = new NominalGroupTemplate(ListItemType.SelectedItem); dlNominalGroup.EditItemTemplate = new NominalGroupTemplate(ListItemType.EditItem); dlNominalGroup.FooterTemplate = new NominalGroupTemplate(ListItemType.Footer); } void dlNominalGroup_DataBinding(object sender, EventArgs e) { } void deleteNominalGroup(int index) { XElement data = XElement.Parse(Convert.ToString( ViewState["nominalGroups"] )); IList<BONominalGroup> list = Serialiser<BONominalGroup>.DeserialiseObjectList(data); FENominalGroup.DeleteNominalGroup(list[index].ID); list.RemoveAt(index); data = Serialiser<BONominalGroup>.SerialiseObjectList(list); ViewState["nominalGroups"] = data.ToString(); dlNominalGroup.DataSource = list; dlNominalGroup.DataBind(); } void updateNominalGroup(DataListItem theItem) { XElement data = XElement.Parse(Convert.ToString( ViewState["nominalGroups"])); IList<BONominalGroup> list = Serialiser<BONominalGroup>.DeserialiseObjectList(data); BONominalGroup old = list[theItem.ItemIndex]; BONominalGroup n = new BONominalGroup(); byte id = Convert.ToByte(((TextBox)theItem.FindControl("lblID")).Text); string group = ((TextBox)theItem.FindControl("txtGroup")).Text; bool isPositive = Convert.ToBoolean(((CheckBox)theItem.FindControl("chkIsPositive")).Text); n.ID = id; n.Group = group; n.IsPositive = isPositive; FENominalGroup.UpdateNominalGroup(old, n); list[theItem.ItemIndex] = n; data = Serialiser<BONominalGroup>.SerialiseObjectList(list); ViewState["nominalGroups"] = data.ToString(); } void dlNominalGroup_ItemCommand(object source, DataListCommandEventArgs e) { DataList l = (DataList)source; switch (e.CommandName) { case "SelectRow": { if (l.EditItemIndex == -1) { l.SelectedIndex = e.Item.ItemIndex; l.EditItemIndex = -1; } break; } case "EditRow": { if (l.SelectedIndex == e.Item.ItemIndex) { l.EditItemIndex = e.Item.ItemIndex; } break; } case "DeleteRow": { deleteNominalGroup(e.Item.ItemIndex); l.EditItemIndex = -1; try { l.SelectedIndex = e.Item.ItemIndex; } catch { l.SelectedIndex = -1; } break; } case "CancelRow": { l.SelectedIndex = l.EditItemIndex; l.EditItemIndex = -1; break; } case "SaveRow": { updateNominalGroup(e.Item); try { l.SelectedIndex = e.Item.ItemIndex; } catch { l.SelectedIndex = -1; } l.EditItemIndex = -1; break; } } } Lots of code there, I'm afraid, but it should build. Thanks if anyone manages to spot my silliness. The BONominalGroup class (please ignore my crazy getHash override, I'm not proud of it). IAudit can just be an empty interface here and all will be fine. It used to inherit from another class, I have cleaned that out - so the serialization logic may be broken here. public class BONominalGroup { public BONominalGroup() #region Fields and properties private Int16 _ID; public Int16 ID { get { return _ID; } set { _ID = value; } } private string _group; public string Group { get { return _group; } set { _group = value; } } private bool _isPositve; public bool IsPositive { get { return _isPositve; } set { _isPositve = value; } } #endregion public override bool Equals(object obj) { bool retVal = false; BONominalGroup ng = obj as BONominalGroup; if (ng!=null) if (ng._group == this._group && ng._ID == this.ID && ng.IsPositive == this.IsPositive) { retVal = true; } return retVal; } public override int GetHashCode() { return ToString().GetHashCode(); } public override string ToString() { return "BONominalGroup{ID:" + this.ID.ToString() + ",Group:" + this.Group.ToString() + ",IsPositive:" + this.IsPositive.ToString() + "," + "}"; } #region IXmlSerializable Members public override void ReadXml(XmlReader reader) { reader.ReadStartElement("BONominalGroup"); this.ID = Convert.ToByte(reader.ReadElementString("id")); this.Group = reader.ReadElementString("group"); this.IsPositive = Convert.ToBoolean(reader.ReadElementString("isPositive")); base.ReadXml(reader); reader.ReadEndElement(); } public override void WriteXml(XmlWriter writer) { writer.WriteElementString("id", this.ID.ToString()); writer.WriteElementString("group", this.Group); writer.WriteElementString("isPositive", this.IsPositive.ToString()); // writer.WriteStartElement("BOBase"); // base.WriteXml(writer); writer.WriteEndElement(); } #endregion }

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