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  • How Do You Databind Avalon DateTimePicker Start Value?

    - by discwiz
    Trying to set the start time of the Avalon DateTimePicker, but all I get is the current time. Anyone had any success with this control. FYI, I am stuck using .Net 3.0. <wf:DateTimePicker x:Name="DatePickerStartTime" DateTimeSelected="{Binding Path=StartTime,Mode=TwoWay}" > </wf:DateTimePicker> Thanks, Dave

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  • VisualBasic.net Database Boiler Plate

    - by Shiftbit
    Is there any built in .net Classes to assist in the reduction of boiler plate code? I have numerous database operations going on and I find that I am reproducing the connection, command, transaction and occassianlly data set. I am aware of the Java Related Question, however, the solutions pertain to Java. I was wondering if anyone was aware of a .net solution? http://stackoverflow.com/questions/1072925/remove-boilerplate-from-db-code Public Sub ReadData(ByVal connectionString As String) Dim queryString As String = "SELECT EmpNo, EName FROM Emp" Using connection As New OracleConnection(connectionString) Dim command As New OracleCommand(queryString, connection) connection.Open() Using reader As OracleDataReader = command.ExecuteReader() ' Always call Read before accessing data. While reader.Read() Console.WriteLine(reader.GetInt32(0).ToString() + ", " _ + reader.GetString(1)) End While End Using End Using End Sub MSDN

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  • Entity Framework 4 / POCO - Where to start?

    - by Basiclife
    Hi, I've been programming for a while and have used LINQ-To-SQL and LINQ-To-Entities before (although when using entities it has been on a Entity/Table 1-1 relationship - ie not much different than L2SQL) I've been doing a lot of reading about Inversion of Control, Unit of Work, POCO and repository patterns and would like to use this methodology in my new applications. Where I'm struggling is finding a clear, concise beginners guide for EF4 which doesn't assume knowledge of EF1. The specific questions I need answered are: Code first / model first? Pros/cons in regards to EF4 (ie what happens if I do code first, change the code at a later date and need to regenerate my DB model - Does the data get preserved and transformed or dropped?) Assuming I'm going code-first (I'd like to see how EF4 converts that to a DB schema) how do I actually get started? Quite often I've seen articles with entity diagrams stating "So this is my entity model, now I'm going to ..." - Unfortunately, I'm unclear if they're created the model in the designer, saved it to generate code then stopped any further auto-code generation -or- They've coded (POCO)? classes and the somehow imported them into the deisgner view? I suppose what I really need is an understanding of where the "magic" comes from and how to add it myself if I'm not just generating an EF model directly from a DB. I'm aware the question is a little vague but I don't know what I don't know - So any input / correction / clarification appreciated. Needless to say, I don't expect anyone to sit here and teach me EF - I'd just like some good tutorials/forums/blogs/etc. for complete entity newbies Many thanks in advance

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  • ObjectDataSource DataObjectTypeName Help. Pass object as parameter

    - by Kettenbach
    I have a partial class (the main class is a LinqToSql generated class) <DataObject(True)> _ Partial Public Class MBI_Contract <DataObjectMethod(DataObjectMethodType.Select, True)> _ Public Shared Function GetCancelableContracts(ByVal dealer As Dealer) As List(Of MBI_Contract) Return Utilities.GetCancelableContractsForDealer(dealer) End Function End Class Here is the method it's calling Public Function GetCancelableContractsForDealer(ByVal dealer As Dealer) As List(Of MBI_Contract) Dim db As TestDataContext = TestDataContext.Create() Return (From mbi As MBI_Contract In db.MBI_Contracts _ Where mbi.MBI_DealerNumber = dealer.DealerNumber _ AndAlso mbi.MBI_PaidFor = True _ AndAlso mbi.MBI_Deleted = False).ToList() End Function I want to use the ObjectDataSource to drive a DropDownList. <asp:ObjectDataSource ID="contractOds" runat="server" TypeName="MBI_Contract" SelectMethod="GetCancelableContracts" DataObjectTypeName="Dealer"> </asp:ObjectDataSource> My aspx page has a Dealer property that is set in a BasePage. My question is how can I pass this property(object) to the ObjectDataSource, so it can be evaluated in my select method. Does anyone know how I can do this? Or am I totally doing this the wrong way? Thanks for any Advice, Cheers, ~ck in San Diego

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  • Whats wrong with this ?

    - by Vibin Jith
    dim dataType as String toolTip="Marks And Number[String]" I want to get the [String] alone. dataType = toolTipText.Substring(toolTipText.IndexOf("[") + 1, toolTipText.IndexOf("]") - 1) it shows an error. Regarding the length of the string. What's wrong with my code.I dont know , Some times I have these type of problems . Standing with simple loops or conditions .

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  • problem when I save the text of an htmlEditor ?

    - by ahmed
    Hello guys , I have a problem when I save the content of a htmlEditor it takes the first line of the message. For example I enter text text text text text text After entering the text when i retrieve it I just get the first line of the message . Send message code HtmlEdit1.Lines.Add(" <br />") HtmlEdit1.Lines.Add(" <br />") html_txt = "" For I = 0 To HtmlEdit1.Lines.Count - 1 html_txt = html_txt + HtmlEdit1.Lines(I).ToString() Next mydt = DateTime.Now Then inserting the record in SQL insert into MESSAGES (SRNO, ID, subject)values ( @P1, @P2, @P3) Finally updating the grid.

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  • Pattern for limiting number of simultaneous asynchronous calls

    - by hitch
    I need to retrieve multiple objects from an external system. The external system supports multiple simultaneous requests (i.e. threads), but it is possible to flood the external system - therefore I want to be able to retrieve multiple objects asynchronously, but I want to be able to throttle the number of simultaneous async requests. i.e. I need to retrieve 100 items, but don't want to be retrieving more than 25 of them at once. When each request of the 25 completes, I want to trigger another retrieval, and once they are all complete I want to return all of the results in the order they were requested (i.e. there is no point returning the results until the entire call is returned). Are there any recommended patterns for this sort of thing? Would something like this be appropriate (pseudocode, obviously)? private List<externalSystemObjects> returnedObjects = new List<externalSystemObjects>; public List<externalSystemObjects> GetObjects(List<string> ids) { int callCount = 0; int maxCallCount = 25; WaitHandle[] handles; foreach(id in itemIds to get) { if(callCount < maxCallCount) { WaitHandle handle = executeCall(id, callback); addWaitHandleToWaitArray(handle) } else { int returnedCallId = WaitHandle.WaitAny(handles); removeReturnedCallFromWaitHandles(handles); } } WaitHandle.WaitAll(handles); return returnedObjects; } public void callback(object result) { returnedObjects.Add(result); }

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  • Generate Info (wrapper) Class from stored procedure

    - by Adem
    Hello everybody I am in a crucial project and I am trying to speed up the development phase by using codesmith for generating the business class DAL and info class for the tables of my project. There are about 50 tables with relationships parent child many to many and for retrieving data I have to code several inner joins in stored procedures. I have to combine fields from many tables and this makes working with the info class difficult. Is there anyway to generate info class from stored procedures or to be more exact is there a way to parse the result set of the stored procedure and to generate the info class with properties for every column in that result set. Please if anyone can give me some advice and tell me how to achieve this. Best Regards

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  • Dispose Form opened in MainForm tab

    - by fireBand
    Hi, I have a MainForm which has tab Control and several independent form. I open each Individual From in the tab of the main form. A "Close Tab" button on the MainFrom closes the current tab, its implementation is below. This closes the current tab but what I also need is to dispose the From whose tab is closed but I am not sure how to get the instance of the form.' Any help is appreciated Thanks in Advance. 'Close the current tab Private Sub CloseCurrentTab() 'Close the current tab Dim tabPageSave As TabPage tabPageSave = tcDisplayDetails.SelectedTab tcDisplayDetails.TabPages.Remove(tabPageSave) End Sub

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  • Sales figures not displayed in form

    - by Brian Wilson
    Trying to calculate total sales for 5 items, 3 stores. Here's a s/s of what Im getting, along with my code. What am I missing/doing wrong? (p.s. It's not returning an error code in 'debug') Public Class Form1 Private Sub btnCalc_Click(sender As Object, e As EventArgs) Handles btnCalc.Click Dim ttlsales As Double 'set up array data Dim sales(,) As Integer = {{25, 64, 23, 45, 14}, {12, 82, 19, 34, 63}, {54, 22, 17, 43, 35}} Dim price() As Double = {12.0, 17.95, 95.0, 86.5, 78.0} 'mark totals Dim totals(2) As Double For store As Integer = 0 To 2 For item As Integer = 0 To 4 Next Next 'display output lstOut.Items.Add("Sales Per Store") For store As Integer = 0 To 2 lstOut.Items.Add(store + 1 & ":" & FormatCurrency(totals(store))) ttlsales += totals(store) Next lstOut.Items.Add("Total Sales: " & FormatCurrency(ttlsales)) End Sub End Class

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  • Possible to view T-SQL syntax of a stored proc-based SqlCommand?

    - by mconnley
    Hello! I was wondering if anybody knows of a way to retrieve the actual T-SQL that is to be executed by a SqlCommand object (with a CommandType of StoredProcedure) before it executes... My scenario involves optionally saving DB operations to a file or MSMQ before the command is actually executed. My assumption is that if you create a SqlCommand like the following: Using oCommand As New SqlCommand("sp_Foo") oCommand.CommandType = CommandType.StoredProcedure oCommand.Parameters.Add(New SqlParameter("@Param1", "value1")) oCommand.ExecuteNonQuery() End Using It winds up executing some T-SQL like: EXEC sp_Foo @Param1 = 'value1' Is that assumption correct? If so, is it possible to retrieve that actual T-SQL somehow? My goal here is to get the parsing, etc. benefits of using the SqlCommand class since I'm going to be using it anyway. Is this possible? Am I going about this the wrong way? Thanks in advance for any input!

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  • Vbscript / webcam. using flash API - Save streaming file as image

    - by remi
    Hi. Based on a php app we've tried to developp our own webapp in vbscript. All is working well. The camera starts, etc.. The problem we're left with is the following: the flash API is streaming the content of the video to a webpage, this page saves the photo as a jpg. The PHP code we're trying to emulate is as follow $str = file_get_contents("php://input"); file_put_contents("/tmp/upload.jpg", pack("H*", $str)); After intensive googling the best we can come up with is Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Dim sImagePath As String = Server.MapPath("/registration/") & "test.jpg" Dim data As Byte() = Request.BinaryRead(Request.TotalBytes) Dim Ret As Array Dim imgbmp As New System.Drawing.Bitmap("test.jpg") Dim ms As MemoryStream = New MemoryStream(data) imgbmp.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg) Ret = ms.ToArray() Dim fs As New FileStream(sImagePath, FileMode.Create, FileAccess.Write) fs.Write(Ret, 0, Ret.Length) fs.Flush() fs.Close() End Sub which is not working, does anybody have any suggestion?

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  • Can't return a List from a Compiled Query.

    - by Andrew
    I was speeding up my app by using compiled queries for queries which were getting hit over and over. I tried to implement it like this: Function Select(ByVal fk_id As Integer) As List(SomeEntity) Using db As New DataContext() db.ObjectTrackingEnabled = False Return CompiledSelect(db, fk_id) End Using End Function Shared CompiledSelect As Func(Of DataContext, Integer, List(Of SomeEntity)) = _ CompiledQuery.Compile(Function(db As DataContext, fk_id As Integer) _ (From u In db.SomeEntities _ Where u.SomeLinkedEntity.ID = fk_id _ Select u).ToList()) This did not work and I got this error message: Type : System.ArgumentNullException, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 Message : Value cannot be null. Parameter name: value However, when I changed my compiled query to return IQueryable instead of List like so: Function Select(ByVal fk_id As Integer) As List(SomeEntity) Using db As New DataContext() db.ObjectTrackingEnabled = False Return CompiledSelect(db, fk_id).ToList() End Using End Function Shared CompiledSelect As Func(Of DataContext, Integer, IQueryable(Of SomeEntity)) = _ CompiledQuery.Compile(Function(db As DataContext, fk_id As Integer) _ From u In db.SomeEntities _ Where u.SomeLinkedEntity.ID = fk_id _ Select u) It worked fine. Can anyone shed any light as to why this is? BTW, compiled queries rock! They sped up my app by a factor of 2.

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  • Controlling 3rd party program.

    - by madlan
    Hi my program launches a 3rd party program with a few switches to update itself. Once these updates are complete I need to manually click save from the applications menu. This can be done via the keyboard (Alt Gr + M then Alt Gr + S) The application will take several seconds to load at which point the application will open maximised and the save option will be enabled. Can anyone suggest a method or example for doing such a thing? Monitoring a lauched process? Macro? Thanks.

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  • Ignore errors when scanning for files in C:\

    - by Shane
    I am trying to search the C:\ drive for all files with a certain extension. I am using the following code which is working fine, however when it encounters an error the whole process stops rather than continuing with the scan. (running in backgroundworker, hence the invoke) Private Sub ScanFiles(ByVal rootFolder As String, ByVal fileExtension As String) 'Determine if the current folder contains any sub folders Dim subFolders() As String = System.IO.Directory.GetDirectories(rootFolder) For Each subFolder As String In subFolders ScanFiles(subFolder, fileExtension) Next For Each file As String In System.IO.Directory.GetFiles(rootFolder, fileExtension) lb.BeginInvoke(New AddValue(AddressOf AddItems), file) Next End Sub How can I make this code continue once an error is encountered? Thanks for your help.

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  • Problem using ScriptManager.RegisterStartUpScript in user control - Script Error "function is not de

    - by poojad
    I have a aspx page which contains a User Control uc1 ans within uc1, there is another user control uc2. Now I need to call a javascript function in the uc2's page load. (I understand that the Pages are not properly designed, but I am sorry as this is an old application, I am not supposed to make any changes in the design) I am doing this using ScriptManager.RegisterStartUpScript as I have an update panel, but the function is not being called and the script error "load is not defined" is fired. (load is the javascript function in uc2) Can anyone help me out with this? Thank you.

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  • Databinding Error when Recreating object

    - by Maxim Gershkovich
    Hi All, Figure there is a simple solution to this problem but I have been unable to find it. I have databinding in an ASP.Net application to a GridView. This gridview is bound to an ObjectDataSource as per standard usage. The problem I have is that one of my bound fields uses the property DataFormatString="{0:C}" and due to the currency format being displayed when an update is attempted and the object recreated I get a error as such "$13.00 is not a valid value for Decimal." Clearly this is a result of the column using a FormatString and then attempting to bind it back to a decimal property I have in my object called UnitPrice. I am assuming there is some markup I can set that can specify how the value is translated back? Thanks in advance for any help.

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  • ASP.NET Repeater datasource bound to a function. Would it call the function twice?

    - by Frenchie
    In the code behind I have a function that returns a List(Of SomeClass): rptRepeater.DataSource = SomeFunction(SomeVariable) rptRepeater.DataBind() In the html I have a basic repeater layout and am using the below code to get the Properties of each object returned. <%#Databinder.Eval(Container.DataItem, "Parameter1")% My question is, would there ever be a case that it would execute the Function more than once?

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  • permutations gone wrong

    - by vbNewbie
    I have written code to implement an algorithm I found on string permutations. What I have is an arraylist of words ( up to 200) and I need to permutate the list in levels of 5. Basically group the string words in fives and permutated them. What I have takes the first 5 words generates the permutations and ignores the rest of the arraylist? Any ideas appreciated. Private Function permute(ByVal chunks As ArrayList, ByVal k As Long) As ArrayList ReDim ItemUsed(k) pno = 0 Permutate(k, 1) Return chunks End Function Private Shared Sub Permutate(ByVal K As Long, ByVal pLevel As Long) Dim i As Long, Perm As String Perm = pString ' Save the current Perm ' for each value currently available For i = 1 To K If Not ItemUsed(i) Then If pLevel = 1 Then pString = chunks.Item(i) 'pString = inChars(i) Else pString = pString & chunks.Item(i) 'pString += inChars(i) End If If pLevel = K Then 'got next Perm pno = pno + 1 SyncLock outfile outfile.WriteLine(pno & " = " & pString & vbCrLf) End SyncLock outfile.Flush() Exit Sub End If ' Mark this item unavailable ItemUsed(i) = True ' gen all Perms at next level Permutate(K, pLevel + 1) ' Mark this item free again ItemUsed(i) = False ' Restore the current Perm pString = Perm End If Next K above is = to 5 for the number of words in one permutation but when I change the for loop to the arraylist size I get an error of index out of bounds

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  • Code optimization on minutes pr hour calculation

    - by corger
    Hi All, The following code takes a timeframe in minutes since midnight and creates an array with minutes pr hour. But, it's slow. Any better suggestions out there? (no, changing language is not an option :-) ) Const clDeparture As Long = 123 Const clArrival As Long = 233 Dim lHour As Long Dim lMinute As Long Dim alHour(25) As Long For lMinute = 0 To 1440 If lMinute >= clDeparture And lMinute < clArrival Then alHour(Int(lMinute / 60)) = alHour(Int(lMinute / 60)) + 1 End If Next The array should now contain: (0,0) (1,0) (2,57) (3,53) (4,0) ..... Regards

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  • Appending data into Listview control results

    - by strakastroukas
    In my webpage i use the following in order filling the listview control <asp:ListView ID="ListView1" runat="server"> <layouttemplate> <asp:PlaceHolder id="itemPlaceholder" runat="server" /></layouttemplate> <ItemTemplate> <tr> <td><asp:Label ID="Label1" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans1") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans1Visible") %>'></asp:Label> <br /> <asp:Label ID="Label2" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans2") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans2Visible") %>'></asp:Label> <br /> <asp:Label ID="Label3" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans3") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans3Visible") %>'></asp:Label> <br /> <asp:Label ID="Label4" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans4") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans4Visible") %>'></asp:Label> <br /> <asp:Label ID="Label5" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans5") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans5Visible") %>'></asp:Label> <br /> <asp:Label ID="Label6" runat="server" Text = '<%# DataBinder.Eval(Container.DataItem, "Ans6") %>' Visible = '<%# DataBinder.Eval(Container.DataItem, "Ans6Visible") %>'></asp:Label> </td> </tr> </ItemTemplate> </asp:ListView> Now i would like to add numbers to the labels before they are rendered. For example currently the data displayed are like Tennis Football Basketball Nfl Nba Polo and the output i would like to have is 1. Tennis 2. Football 3. Basketball 4. Nfl 5. Nba 6. Polo Could i use ListView1_ItemCreated or the ListView1_ItemDataBound event to achieve this? If that is true, could you point me a place to start?

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  • DataTable Filter mystery

    - by user283897
    Hi, could you please help me find the reason of the mystery I've found? In the below code, I create a DataTable and filter it. When I use filter1, everything works as expected. When I use filter2, everything works as expected only if the SubsectionAmount variable is less than 10. As soon as I set SubsectionAmount=10, the dr2 array returns Nothing. I can't find what is wrong. Here is the code: Imports System.Data Partial Class FilterTest Inherits System.Web.UI.Page Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Call FilterTable() End Sub Sub FilterTable() Dim dtSubsections As New DataTable Dim SectionID As Integer, SubsectionID As Integer Dim SubsectionAmount As Integer Dim filter1 As String, filter2 As String Dim rowID As Integer Dim dr1() As DataRow, dr2() As DataRow With dtSubsections .Columns.Add("Section") .Columns.Add("Subsection") .Columns.Add("FieldString") SectionID = 1 SubsectionAmount = 10 '9 For SubsectionID = 1 To SubsectionAmount .Rows.Add(SectionID, SubsectionID, "abcd" & CStr(SubsectionID)) Next SubsectionID For rowID = 0 To .Rows.Count - 1 Response.Write(.Rows(rowID).Item(0).ToString & " " _ & .Rows(rowID).Item(1).ToString & " " _ & .Rows(rowID).Item(2).ToString & "<BR>") Next SubsectionID = 1 filter1 = "Section=" & SectionID & " AND " & "Subsection=" & SubsectionID filter2 = "Section=" & SectionID & " AND " & "Subsection=" & SubsectionID + 1 dr1 = .Select(filter1) dr2 = .Select(filter2) Response.Write(dr1.Length & "<BR>") Response.Write(dr2.Length & "<BR>") If dr1.Length > 0 Then Response.Write(dr1(0).Item("FieldString").ToString & "<BR>") End If If dr2.Length > 0 Then Response.Write(dr2(0).Item("FieldString").ToString & "<BR>") End If End With End Sub End Class

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