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• Technology Selection for a dynamic product

  - by Kuntal Shah

  We are building a product for Procurement Domain in JAVA. Following are the main technical requirements. Platform Independent Database Independent Browser Independent In functional requirements the product is very dynamic in nature. The main reason being the procurement process around the world is different from client to client. Briefly we need to have a dynamic workflow engine and a dynamic template engine. The workflow engine by which we can define any kind of workflows and the template engine allows us to define any kind of data structures and based on definition it can get the user input through workflow. We have been developing this product for almost 2 years. It has been a long time till we can get down with the dynamics of requirements. Till now we have developed a basic workflow and template engine and which is in use at one of the client. We have been using following technologies. GWT-Ext (Front End Framework) Hibernate (Database Layer) In between we have faced some issues with GWT-Ext (mainly browser compatibility) and database optimization due to sub classing in hibernate. For resolving GWT-Ext issue, which a dying community so we decided to move to SmartGWT. In SmartGWT we faced issues related to loading and now we are able to finalize that GWT 2.3 will be the way to go as the library is rich and performance is upto the mark. We are able to almost finalize GWT-Spring based front and middle layer. In hibernate, we found main issues with sub-classing due to that it was throwing astronomical queries and sometimes it would stop firing any queries for 5-10 seconds or may be around 30 seconds and then resume again. Few days back I came to one article related to ORM. I am a traditional .Net SQL developer and I have always worked with relational database. Reading through this article, I also found it relating to the issues I face. I am still not completely convinced of using hibernate and this article just supported my opinion. Following are the questions for which I am looking for an answer. Should we be going with Hibernate in case of dynamic database requirements and the load of the data will be heavy in future? How can we partition the data, how we can efficiently join the data, how we can optimize the queries? If the answer is no then how do we achieve database independence? Is our choice related to GWT and Spring proper or do we need to change that too? Should we use any other key value pair database if the data is dynamic in nature and it is very difficult to make it relational?

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• jqGrid dynamic select option

  - by Jo

  I'm creating a jqgrid with drop down columns and I'm using cell editing. I need the options of the drop down columns to change dynamically and I've tried implementing this by setting the column to be: { name: "AccountLookup", index: "AccountLookup", width: 90, editable: true, resizable: true, edittype: "select", formatter: "select" }, and then in the beforeCellEdit event I have: beforeEditCell: function(id, name, val, iRow, iCol) { if(name=='AccountLookup') { var listdata = GetLookupValues(id, name); if (listdata == null) listdata = "1:1"; jQuery("#grid").setColProp(name, { editoptions: { value: listdata.toString()} }) } }, GetLookupValues just returns a string in the format "1:One;2:Two" etc. That works fine however the options are populated one click behind - ie i click on AccountID in row 1, and the dropdown is empty, however when I then click on AccountID in row 3 the options I set in the row 1 click are shown in the row 3 click. And so on. So always one click behind. Is there another way of achieving what I need? Bacially the dropdown options displayed are always changing and I need to load them as user enters the cell for editing. Perhaps I can somehow get at the select control in the beforeEditCell event and manually enter its values instead of using the setColProp call? If so could I get an example of doing that please? Another thing - if the dropdown is empty and a user doesn't cancel the cell edit, the grid script throws an error. I'm using clientarray editing if that makes a difference. Greatly appreciate any help. Regards, Jo

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• ASP.NET 3.5 GridView - row editing - dynamic binding to a DropDownList

  - by marc_s

  This is driving me crazy :-) I'm trying to get a ASP.NET 3.5 GridView to show a selected value as string when being displayed, and to show a DropDownList to allow me to pick a value from a given list of options when being edited. Seems simple enough? My gridview looks like this (simplified): <asp:GridView ID="grvSecondaryLocations" runat="server" DataKeyNames="ID" OnInit="grvSecondaryLocations_Init" OnRowCommand="grvSecondaryLocations_RowCommand" OnRowCancelingEdit="grvSecondaryLocations_RowCancelingEdit" OnRowDeleting="grvSecondaryLocations_RowDeleting" OnRowEditing="grvSecondaryLocations_RowEditing" OnRowUpdating="grvSecondaryLocations_RowUpdating" > <Columns> <asp:TemplateField> <ItemTemplate> <asp:Label ID="lblPbxTypeCaption" runat="server" Text='<%# Eval("PBXTypeCaptionValue") %>' /> </ItemTemplate> <EditItemTemplate> <asp:DropDownList ID="ddlPBXTypeNS" runat="server" Width="200px" DataTextField="CaptionValue" DataValueField="OID" /> </EditItemTemplate> </asp:TemplateField> </asp:GridView> The grid gets displayed OK when not in editing mode - the selected PBX type shows its value in the asp:Label control. No surprise there. I load the list of values for the DropDownList into a local member called _pbxTypes in the OnLoad event of the form. I verified this - it works, the values are there. Now my challenge is: when the grid goes into editing mode for a particular row, I need to bind the list of PBX's stored in _pbxTypes. Simple enough, I thought - just grab the drop down list object in the RowEditing event and attach the list: protected void grvSecondaryLocations_RowEditing(object sender, GridViewEditEventArgs e) { grvSecondaryLocations.EditIndex = e.NewEditIndex; GridViewRow editingRow = grvSecondaryLocations.Rows[e.NewEditIndex]; DropDownList ddlPbx = (editingRow.FindControl("ddlPBXTypeNS") as DropDownList); if (ddlPbx != null) { ddlPbx.DataSource = _pbxTypes; ddlPbx.DataBind(); } .... (more stuff) } Trouble is - I never get anything back from the FindControl call - seems like the ddlPBXTypeNS doesn't exist (or can't be found). What am I missing?? Must be something really stupid.... but so far, all my Googling, reading up on GridView controls, and asking buddies hasn't helped. Who can spot the missing link? ;-) Marc

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• Dynamic localization with Data Annotations possible?

  - by devries48

  Hi, I'm trying to dynamicly update the language of a Silverlight application. I tried the example provided by Tim Heuer and that was exactly wat I needed. Silverlight and localizing string data Now I'm experimenting with Data Annotations and would like to have the same behaviour.But with no luck... Can someone point me in the right direction. DataAnnotation of a property: [Display(Name = "UserNameLabel", ResourceType = typeof(Resources.Strings.StringResources))] [Required] public string Username ... My Xaml: <dataInput:Label Target="{Binding ElementName=tbUserName}" PropertyPath="UserName"/> Thanks, Ron

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• Silverlight 3 Dynamic DataGrid RowStyle Ignored

  - by antoinne85

  I subclassed the standard DataGrid into SpecialDataGrid so I could override the KeyDown/KeyUp events. Other than that SpecialDataGrid is exactly the same as DataGrid. At run-time I dynamically create a bunch of these SpecialDataGrids. When a user clicks a row in the grid it hightlights, which is fine, but when that grid loses focus, it leaves a residual gray highlight on the last-selected row, which is not fine. I've heavily edited the RowStyle and CellStyle I'm applying to these Grids to more-or-less remove all formatting. I even added a static SpecialDataGrid to the app with test data so I could see if the RowStyle was somehow incorrect, applying the same RowStyle and CellStyle that I'm applying to the dynamically generated one (you'll see it in the code below). What I saw was that the "test grid" showed up exactly as I wanted, and the real grid is ignoring part of the RowStyle! Has anyone run into this issue or have any ideas of how to correct it? Some source and images follow. Creating the SpecialDataGrid: //Set up a datagrid. SpecialDataGrid radio_datagrid = new SpecialDataGrid(); radio_datagrid.ItemsSource = radios; radio_datagrid.AutoGenerateColumns = false; radio_datagrid.HeadersVisibility = DataGridHeadersVisibility.None; radio_datagrid.BorderThickness = new Thickness(0); radio_datagrid.HorizontalAlignment = HorizontalAlignment.Stretch; radio_datagrid.IsReadOnly = true; radio_datagrid.MouseLeftButtonUp += new MouseButtonEventHandler(option_datagrid_MouseLeftButtonUp); radio_datagrid.KeyDown += new KeyEventHandler(radio_datagrid_KeyDown); radio_datagrid.KeyUp += new KeyEventHandler(radio_datagrid_KeyUp); //Radio column. DataGridTemplateColumn temp_col = new DataGridTemplateColumn(); temp_col.CellTemplate = (DataTemplate)this.Resources["RadioColumnTemplate"]; temp_col.Width = new DataGridLength(20); radio_datagrid.Columns.Add(temp_col); //Description column. DataGridTextColumn txt_col = new DataGridTextColumn(); txt_col.Binding = new Binding("optionlabel"); txt_col.Width = new DataGridLength(350); radio_datagrid.Columns.Add(txt_col); //Product code column. txt_col = new DataGridTextColumn(); txt_col.Binding = new Binding("optioncode"); txt_col.Width = new DataGridLength(80); radio_datagrid.Columns.Add(txt_col); //Price column. txt_col = new DataGridTextColumn(); txt_col.Binding = new Binding("optionprice"); txt_col.Width = new DataGridLength(80); radio_datagrid.Columns.Add(txt_col); //View column. temp_col = new DataGridTemplateColumn(); temp_col.CellTemplate = (DataTemplate)this.Resources["HyperlinkButtonColumnTemplate"]; temp_col.Width = new DataGridLength(30); radio_datagrid.Columns.Add(temp_col); radio_datagrid.RowStyle = (Style)this.Resources["StyleDataGridRowNoAlternating"]; radio_datagrid.CellStyle = (Style)this.Resources["Style_DataGridCell_NoHighlight"]; Example Image: The lower DataGrid appears that way regardless of what you do to it. No highlighting of any sort and certainly no residual highlights. Any idea what's keeping this from being applied to the first?

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• ASP.NET Wizard control with Dynamic UserControls

  - by wjat777

  Hello everyone I'm trying to use the Wizard control as follows: 1 - In the first step (first screen) has a cheklistbox with several options 2 - For each option selected, will be created an extra step 3 - In some steps may be set up intermediate stages Me problem is that each step is a usercontrol. So if the first step I select option1 and option3, I should create two more steps with usercontrol1 and UserControl3 .... Someone already did something similar? I will try explain better the problem. I'll paste here, but I put a copy of the project in skydrive: http://cid-3d949f1661d00819.skydrive.live.com/self.aspx/C%5E3/WizardControl2.7z It is a very basic example of what I'm trying to do. The project has page.ASPX 1 and 3 usercontrol.ASCX (UC1, UC2 and UC3) Default.ASPX: <%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication2._Default" % Option1 Option2 Option3 Code Behind: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace WebApplication2 { public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { } protected void Page_PreInit(object sender, EventArgs e) { LoadSteps(); } private void LoadSteps() { int count = Wizard1.WizardSteps.Count; for (int i = count - 1; i > 0; i--) { WizardStepBase step = Wizard1.WizardSteps[i]; if (step.StepType != WizardStepType.Start) Wizard1.WizardSteps.Remove(step); } string Activities=""; foreach (ListItem item in CheckBoxList1.Items) { if (item.Selected) { WizardStep step = new WizardStep {ID = "step_" + item.Value, Title = "step_" + item.Value}; UserControl uc=null; switch (item.Value) { case "1": uc=(UserControl)LoadControl("~/UC1.ascx"); break; case "2": uc=(UserControl)LoadControl("~/UC2.ascx"); break; case "3": uc=(UserControl)LoadControl("~/UC3.ascx"); break; } step.Controls.Add(uc); Wizard1.WizardSteps.Add(step); } } } protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e) { LoadSteps(); } } } Control UC1.ASCX to UC3.ASCX has the same code (as an example) usercontrol.ascx: <%@ Control Language="C#" AutoEventWireup="true" CodeBehind="UC1.ascx.cs" Inherits="WebApplication2.UC1" % AutoPostBack="True" AutoPostBack="True" Code Behind: using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; namespace WebApplication2 { public partial class UC1 : System.Web.UI.UserControl { protected void Page_Init(object sender, EventArgs e) { List list1 = new List { "Alice", "Bob", "Chris" }; List list2 = new List { "UN", "DEUX", "TROIS" }; DropDownList1.DataSource = list1; DropDownList2.DataSource = list2; DropDownList1.DataBind(); DropDownList2.DataBind(); } protected void Page_Load(object sender, EventArgs e) { if (IsPostBack) return; } protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) { Label1.Text = DropDownList1.SelectedValue; } protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e) { Label2.Text = DropDownList2.SelectedValue; } } } You can see that the controls UserControls trigger events (they cause postbacks) The behavior of this project is a little different than I described in the first thread, but the problem is the same. After the second time "next" button, you will get an error. Thanks in advance William

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• Java and junit: derivative of polynomial method testing issue

  - by Curtis

  Hello all, im trying to finish up my junit testing for finding the derivative of a polynomial method and im having some trouble making it work. here is the method: public Polynomial derivative() { MyDouble a = new MyDouble(0); MyDouble b = this.a.add(this.a); MyDouble c = this.b; Polynomial poly = new Polynomial (a, b, c); return poly; } and here is the junit test: public void testDerivative() { MyDouble a = new MyDouble(2), b = new MyDouble(4), c = new MyDouble(8); MyDouble d = new MyDouble(0), e = new MyDouble(4), f = new MyDouble(4); Polynomial p1 = new Polynomial(a, b, c); Polynomial p2 = new Polynomial(d,e,f); assertTrue(p1.derivative().equals(p2)); } im not too sure why it isnt working...ive gone over it again and again and i know im missing something. thank you all for any help given, appreciate it

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• WPF ToolTip Style with dynamic LayoutTransform

  - by NoOne

  I have an app that scales it's UI and I want to scale the ToolTips with it. I have tried doing this: <Style TargetType="{x:Type ToolTip}"> <Setter Property="LayoutTransform" Value="{DynamicResource scaleTransf}"/> ... </Style> ...where scaleTransf is a resource that I change via code: Application.Current.Resources["scaleTransf"] = new ScaleTransform(...); Most of the ToolTips do get scaled in size but some of them that are created by C# code don't get scaled. I've checked and it seems that I don't set their Style or LayoutTransform by code, so I don't really understand what is going wrong... Moreover, I have the impression that the above XAML code worked fine a few days ago. :( Is there sth I can do to make it work all the time without setting the LayoutTransform in code-behind? EDIT : The ToolTips that don't change scale are the ones that have become visible before. EDIT2 : Extra code: <ScaleTransform x:Key="scaleTransf" ScaleX="1" ScaleY="1"/> I have also tried this: Application.Current.Resources.Remove("scaleTransf"); Application.Current.Resources.Add("scaleTransf", new ScaleTransform(val, val)); EDIT3 : My attempt to solve this using a DependencyProperty: In MainWindow.xaml.cs : public static readonly DependencyProperty TransformToApplyProperty = DependencyProperty.Register("TransformToApply", typeof(Transform), typeof(MainWindow)); public Transform TransformToApply { get { return (Transform)this.GetValue(TransformToApplyProperty); } } Somewhere in MainWindow, in response to a user input: this.SetValue(TransformToApplyProperty, new ScaleTransform(val, val)); XAML Style: <Style TargetType="{x:Type ToolTip}"> <Setter Property="LayoutTransform" Value="{Binding TransformToApply, ElementName=MainWindow}"/> ... Using this code, not a single one of the ToolTips seem to scale accordingly.

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• Dynamic SQL to generate column names?

  - by Ben McCormack

  I have a query where I'm trying pivot row values into column names and currently I'm using SUM(Case...) As 'ColumnName' statements, like so: SELECT SKU1, SUM(Case When Sku2=157 Then Quantity Else 0 End) As '157', SUM(Case When Sku2=158 Then Quantity Else 0 End) As '158', SUM(Case When Sku2=167 Then Quantity Else 0 End) As '167' FROM OrderDetailDeliveryReview Group By OrderShipToID, DeliveryDate, SKU1 The above query works great and gives me exactly what I need. However, I'm writing out the SUM(Case... statements by hand based on the results of the following query: Select Distinct Sku2 From OrderDetailDeliveryReview Is there a way, using T-SQL inside a stored procedure, that I can dynamically generate the SUM(Case... statements from the Select Distinct Sku2 From OrderDetailDeliveryReview query and then execute the resulting SQL code?

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• Dynamic CSS Width

  - by Alon

  I have a <div></div> and I want that its width will be the page width minus 40 pixels. Is there any way to do this without JavaScript or expression (because expression works only in IE)? Thanks.

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• Dynamic Canonical Link Code - Need 2 Refactored Versions - Remove Param / Query Strings

  - by Bryan Hadaway

  function canlink() { echo '<link rel="canonical" href="http://' . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"] . '" />'; } Need one version that removes just & and everything after and another that removes ? and everything after, I've been looking for a clean minimalist solution for the past 2-3 days with nothing close. Thanks, Bryan

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• Dynamic programming in VB

  - by Rahul Jain

  Hello Everybody, We develop applications for SAP using their SDK. SAP provides a SDK for changing and handling events occuring in the user interface. For example, with this SDK we can catch a click on a button and do something on the click. This programming can be done either VB or C#. This can also be used to create new fields on the pre-existing form. We have developed a specific application which allows users to store the definition required for new field in a database table and the fields are created at the run time. So far, this is good. What we require now is that the user should be able to store the validation code for the field in the database and the same should be executed on the run time. Following is an example of such an event: Private Sub SBO_Application_ItemEvent(ByVal FormUID As String, ByRef pVal As SAPbouiCOM.ItemEvent, ByRef BubbleEvent As Boolean) Handles SBO_Application.ItemEvent Dim oForm As SAPbouiCOM.Form If pVal.FormTypeEx = "ACC_QPLAN" Then If pVal.EventType = SAPbouiCOM.BoEventTypes.et_LOST_FOCUS And pVal.BeforeAction = False Then oProdRec.ItemPressEvent(pVal) End If End If End Sub Public Sub ItemPressEvent(ByRef pVal As SAPbouiCOM.ItemEvent) Dim oForm As SAPbouiCOM.Form oForm = oSuyash.SBO_Application.Forms.GetForm(pVal.FormTypeEx, pVal.FormTypeCount) If pVal.EventType = SAPbouiCOM.BoEventTypes.et_LOST_FOCUS And pVal.BeforeAction = False Then If pVal.ItemUID = "AC_TXT5" Then Dim CardCode, ItemCode As String ItemCode = oForm.Items.Item("AC_TXT2").Specific.Value CardCode = oForm.Items.Item("AC_TXT0").Specific.Value UpdateQty(oForm, CardCode, ItemCode) End If End If End Sub So, what we need in this case is to store the code given in the ItemPressEvent in a database, and execute this in runtime. I know this is not straight forward thing. But I presume there must be some ways of getting these kind of things done. The SDK is made up of COM components. Thanks & Regards, Rahul Jain

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• Creating a dynamic linq query

  - by Bas

  I have the following query: from p in dataContext.Repository<IPerson>() join spp1 in dataContext.Repository<ISportsPerPerson>() on p.Id equals spp1.PersonId join s1 in dataContext.Repository<ISports>() on spp1.SportsId equals s1.Id join spp2 in dataContext.Repository<ISportsPerPerson>() on p.Id equals spp2.PersonId join s2 in dataContext.Repository<ISports>() on spp2.SportsId equals s2.Id where s1.Name == "Soccer" && s2.Name == "Tennis" select new { p.Id }; It selects all the person who play Soccer and Tennis. On runtime the user can select other tags to add to the query, for instance: "Hockey". now my question is, how could I dynamically add "Hockey" to the query? If "Hockey" is added to the query, it would look like this: from p in dataContext.Repository<IPerson>() join spp1 in dataContext.Repository<ISportsPerPerson>() on p.Id equals spp1.PersonId join s1 in dataContext.Repository<ISports>() on spp1.SportsId equals s1.Id join spp2 in dataContext.Repository<ISportsPerPerson>() on p.Id equals spp2.PersonId join s2 in dataContext.Repository<ISports>() on spp2.SportsId equals s2.Id join spp3 in dataContext.Repository<ISportsPerPerson>() on p.Id equals spp3.PersonId join s3 in dataContext.Repository<ISports>() on spp3.SportsId equals s3.Id where s1.Name == "Soccer" && s2.Name == "Tennis" && s3.Name == "Hockey" select new { p.Id }; It would be preferable if the query is build up dynamically like: private void queryTagBuilder(List<string> tags) { IDataContext dataContext = new LinqToSqlContext(new L2S.DataContext()); foreach(string tag in tags) { //Build the query? } } Anyone has an idea on how to set this up correctly? Thanks in advance!

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• Dynamic Scoped Resources in WPF/XAML?

  - by firoso

  I have 2 Xaml files, one containing a DataTemplate which has a resource definition for an Image brush, and the other containing a content control which presents this DataTemplate. The data template is bound to a view model class. Everything seems to work EXCEPT the ImageBrush resource, which just shows up white... Any ideas? File 1: DataTemplate for ViewModel <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:vm="clr-namespace:SEL.MfgTestDev.ESS.ViewModel" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d"> <DataTemplate DataType="{x:Type vm:PresenterViewModel}"> <DataTemplate.Resources> <ImageBrush x:Key="PresenterTitleBarFillBrush" TileMode="Tile" Viewbox="{Binding Path=FillBrushDimensions, Mode=Default}" ViewboxUnits="Absolute" Viewport="{Binding Path=FillBrushPatternSize, Mode=Default}" ViewportUnits="Absolute" ImageSource="{Binding Path=FillImage, Mode=Default}"/> </DataTemplate.Resources> <Grid d:DesignWidth="1440" d:DesignHeight="900"> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"/> <ColumnDefinition Width="192"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="120"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <DockPanel HorizontalAlignment="Stretch" Width="Auto" LastChildFill="True" Background="{x:Null}" Grid.ColumnSpan="2"> <Image Source="{Binding Path=ImageSource, Mode=Default}"/> <Rectangle Fill="{DynamicResource PresenterTitleBarFillBrush}"/> </DockPanel> </Grid> </DataTemplate> </ResourceDictionary> File 2: Main Window Class which instanciates the DataTemplate Via it's view model. <Window x:Class="SEL.MfgTestDev.ESS.ESSMainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:vm="clr-namespace:SEL.MfgTestDev.ESS.ViewModel" Title="ESS Control Window" Height="900" Width="1440" WindowState="Maximized" WindowStyle="None" ResizeMode="NoResize" DataContext="{Binding}"> <Window.Resources> <ResourceDictionary Source="PresenterViewModel.xaml" /> </Window.Resources> <ContentControl> <ContentControl.Content> <vm:PresenterViewModel ImageSource="XAMLResources\SEL25YearsTitleBar.bmp" FillImage="XAMLResources\SEL25YearsFillPattern.bmp" FillBrushDimensions="0,0,5,110" FillBrushPatternSize="0,0,5,120"/> </ContentControl.Content> </ContentControl> </Window> And for the sake of completeness! The CodeBehind for the View Model using System; using System.Collections.Generic; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Shapes; namespace SEL.MfgTestDev.ESS.ViewModel { public class PresenterViewModel : ViewModelBase { public PresenterViewModel() { } //DataBindings private ImageSource _imageSource; public ImageSource ImageSource { get { return _imageSource; } set { if (_imageSource != value) { _imageSource = value; OnPropertyChanged("ImageSource"); } } } private Rect _fillBrushPatternSize; public Rect FillBrushPatternSize { get { return _fillBrushPatternSize; } set { if (_fillBrushPatternSize != value) { _fillBrushPatternSize = value; OnPropertyChanged("FillBrushPatternSize"); } } } private Rect _fillBrushDimensions; public Rect FillBrushDimensions { get { return _fillBrushDimensions; } set { if (_fillBrushDimensions != value) { _fillBrushDimensions = value; OnPropertyChanged("FillBrushDimensions"); } } } private ImageSource _fillImage; public ImageSource FillImage { get { return _fillImage; } set { if (_fillImage != value) { _fillImage = value; OnPropertyChanged("FillImage"); } } } } }

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• jQuery - dynamic variables?

  - by user331884

  Newbie question. Given the following html. <div id="mycontainer1" class="container"> <input type="text" class="name"/> <input type="text" class="age"/> </div> <div id="mycontainer2" class="container"> <input type="text" class="name"/> <input type="text" class="age"/> <input type="text" class="address"/> </div> I'm trying to create a function where I can pass an element id and an array that contains the classes of the input values I want to get. So for example, var inputClasses = ['name','age']; getInputValue('#myContainer1', inputClasses); function getInputValue(elem, arr) { var temp = {}; $(elem).each(function() { // need a way to map items in array to variables // but how do I do this dynamically? var nameValue = $(this).find('.name').val(); var ageValue = $(this).find('.age').val(); });

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• Add calendar datepicker with Jquery on dynamic table.

  - by Cesar Lopez

  I am trying to add a Jquery calendar picker to a text box at the time of creation, but I cant find how. When I press a button, it will create a table, the element I want to attach the Jquery calendar picker is: var txtDate = createTextInput(i, "txtDate", 8, 10); txtDate.className = "datepicker"; this.newcells[i].appendChild(txtsDate); I tried adding at the end : txtDate.datepicker(); But does not work. Can anybody help? Thanks.

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• Need help with Zend Framework dynamic Namespaces

  - by Marcus Sjölin

  I want to make my system redirect unknown requests such as www.address.com/a_company to the adress www.address.com/companies/company/ and display the company a_company if it exists in the database, otherwise throw the user to a 404 not found page. So in detail, I want to make namespace that is as the first example dynamically, if the company exist in the database, I have no problem connecting to the database and retrieving information or finding a way to parse a company name, I just need help how to make my system check and run a function every time the address doesn't exist and show the second page (/companies/company/).. I am using an Acl as well, but I think it should be fine if the page is /companies/company and then possibly add /?c=a_company or similar. Thank you. /Marcus

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• Need help with dynamic programming problem

  - by John Retallack

  I have the following problem : I am given a tree with N apples, for each apple I am given it's weight and height,I can pick apples up to a given height H,each time I pick an apple the height of every apple is increased with U(also given).I have to find out the maximum weight of apples I can pick. e.g: N=4 H=100 U=10 (height-eight) apple1: 91 10 apple2: 82 30 apple3: 93 5 apple4: 94 15 The answer is 45 : I first pick the apple with the weight of 15 then the one with the weight of 30. I would like to know if someone here could help me with giving me an hint on how I should approach this problem. Thank you.

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• Dynamic controls not creating with RSS reader function

  - by TuxMeister

  Hello, I am working on a test project for an RSS reader. I am using Chilkat's module for .NET 3.5. What I am trying to do is this: For each item in the RSS feed, I want to dynamically create some controls (labels) that contain stuff like the title, the link and the publication date. The problem is that only the first control comes up "rssTitle", but not the rest and it's definitely not creating the rest, nor cycling through the RSS items. Any ideas where I'm wrong in my code? Imports Chilkat Public Class Form1 Dim rss As New Chilkat.Rss Dim success As Boolean Dim rssTitle As New Label Dim rssLink As New Label Dim rssPubDate As New Label Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click success = rss.DownloadRss("http://www.engadget.com/rss.xml") If success <> True Then MessageBox.Show(rss.LastErrorText) Exit Sub End If Dim rssChannel As Chilkat.Rss rssChannel = rss.GetChannel(0) If rssChannel Is Nothing Then MessageBox.Show("No channel found.") Exit Sub End If Dim numItems As Long numItems = rssChannel.NumItems Dim i As Long For i = 0 To numItems - 1 Dim rssItem As Chilkat.Rss rssItem = rssChannel.GetItem(i) Me.Controls.Add(rssTitle) With rssTitle .Name = "rssTitle" & Me.Controls.Count.ToString + 1 .Text = "Title: " & rssItem.GetString("title") .Left = 12 .Top = 12 End With Me.Controls.Add(rssLink) With rssLink .Name = "rssLink" & Me.Controls.Count.ToString + 1 .Text = "Link: " & rssItem.GetString("link") .Left = 12 .Top = 12 End With Me.Controls.Add(rssPubDate) With rssPubDate .Name = "rssPubDate" & Me.Controls.Count.ToString + 1 .Text = "Pub date: " & rssItem.GetString("pubDate") .Left = 12 .Top = 12 End With Next End Sub End Class I'm grateful for any help. Thanks!

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• How do i create a table dynamically with dynamic datatype from a PL/SQL procedure

  - by Swapna

  CREATE OR REPLACE PROCEDURE p_create_dynamic_table IS v_qry_str VARCHAR2 (100); v_data_type VARCHAR2 (30); BEGIN SELECT data_type || '(' || data_length || ')' INTO v_data_type FROM all_tab_columns WHERE table_name = 'TEST1' AND column_name = 'ZIP'; FOR sql_stmt IN (SELECT * FROM test1 WHERE zip IS NOT NULL) LOOP IF v_qry_str IS NOT NULL THEN v_qry_str := v_qry_str || ',' || 'zip_' || sql_stmt.zip || ' ' || v_data_type; ELSE v_qry_str := 'zip_' || sql_stmt.zip || ' ' || v_data_type; END IF; END LOOP; IF v_qry_str IS NOT NULL THEN v_qry_str := 'create table test2 ( ' || v_qry_str || ' )'; END IF; EXECUTE IMMEDIATE v_qry_str; COMMIT; END p_create_dynamic_table; Is there any better way of doing this ?

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• Two DIV layers: resize top DIV based on dynamic height of bottom DIV

  - by user1650713

  I have two DIV layers, one above the other. In the top DIV, there is an image, and in the bottom DIV, there is a block of text. The amount of text in the bottom DIV will change, thus increasing and decreasing the required height. I need to dynamically decrease the height of the image in the top DIV based on how much height is required for the bottom. I have exactly 600px vertical space available. For example: If the bottom DIV requires 200px height, I need for the image to change height to 400px. If the bottom DIV requires 300px height, I need for the image to change height to 300px. I know that I can make the image height 100% of the top DIV, thus allowing it to expand or contract as needed. The issue is that I need for the bottom DIV to be able to expand freely and for the top DIV to react accordingly. In other words, I cannot have either be a fixed height. <div id="topdiv"> <img src="example.png" alt="This image needs a height based on the bottom div" /> </div> <div id="bottomdiv"> This text needs to be able to expand or contract freely </div> Can anyone help?

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• need help figuring out dynamic menu generation in django

  - by photographer

  I need to dynamically generate a code like this in the resulting html: <p>>> gallery one</p> <p><a href="../gallery2">gallery two</a></p> <p><a href="../about">about the author</a></p> <p><a href="../news">our news</a></p> I do have menu_code string variable created in views.py (it is generated depending on an item number of the current page passed — 1 in the case above), which contains that long string with the code shown above. It is (well, supposed to) passed by locals() into the html template (all other variables are passed that way successfully): return render_to_response('gallery_page.html', locals()) I have this: {% include menu_code %} inside the template html. But instead of being interpreted as code it is just shown as text in the browser. What am I doing wrong? How to make it work as a dynamically generated menu?

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• Dynamic where clause using Linq to SQL in a join query in a MVC application

  - by jhoefnagels

  Dear .Net Linq experts, I am looking for a way to query for products in a catalog using filters on properties which have been assigned to the product based on the category to which the product belongs. So I have the following entities involved: Products -Id -CategoryId Categories [Id] Properties [Id, CategoryId] PropertyValues [Id, PropertyId] ProductProperties [ProductId, PropertyValueId] When I ad a product to the catalog, multiple ProductProperties will be added based on the category and I would like to be able to filter all products from a category by selecting values for one or more properties. I will gather all filters, which I will hold in a list, by reading the URL. Now it is time to actually get the products based on multiple properties and I have been trying to find the right strategy but untill now it does not really work. Is there a way to make this work without writing SQL? I was trying something like this: productsInCategory = ProductRepository.Where(p => p.Category.Name == category); foreach (PropertyFilter pf in filterList) { productsInCategory = (from product in productsInCategory join pp in ProductPropertyRepository on product.Id equals pp.ProductId where pp.PropertyValueId == pf.ValueId select product); }

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• How to find minimum of nonlinear, multivariate function using Newton's method (code not linear algeb

  - by Norman Ramsey

  I'm trying to do some parameter estimation and want to choose parameter estimates that minimize the square error in a predicted equation over about 30 variables. If the equation were linear, I would just compute the 30 partial derivatives, set them all to zero, and use a linear-equation solver. But unfortunately the equation is nonlinear and so are its derivatives. If the equation were over a single variable, I would just use Newton's method (also known as Newton-Raphson). The Web is rich in examples and code to implement Newton's method for functions of a single variable. Given that I have about 30 variables, how can I program a numeric solution to this problem using Newton's method? I have the equation in closed form and can compute the first and second derivatives, but I don't know quite how to proceed from there. I have found a large number of treatments on the web, but they quickly get into heavy matrix notation. I've found something moderately helpful on Wikipedia, but I'm having trouble translating it into code. Where I'm worried about breaking down is in the matrix algebra and matrix inversions. I can invert a matrix with a linear-equation solver but I'm worried about getting the right rows and columns, avoiding transposition errors, and so on. To be quite concrete: I want to work with tables mapping variables to their values. I can write a function of such a table that returns the square error given such a table as argument. I can also create functions that return a partial derivative with respect to any given variable. I have a reasonable starting estimate for the values in the table, so I'm not worried about convergence. I'm not sure how to write the loop that uses an estimate (table of value for each variable), the function, and a table of partial-derivative functions to produce a new estimate. That last is what I'd like help with. Any direct help or pointers to good sources will be warmly appreciated. Edit: Since I have the first and second derivatives in closed form, I would like to take advantage of them and avoid more slowly converging methods like simplex searches.

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• Removing a fields from a dynamic ModelForm

  - by Jérôme Pigeot

  In a ModelForm, i have to test user permissions to let them filling the right fields : It is defined like this: class TitleForm(ModelForm): def __init__(self, user, *args, **kwargs): super(TitleForm,self).__init__(*args, **kwargs) choices = [] # company if user.has_perm("myapp.perm_company"): self.fields['company'] = forms.ModelChoiceField(widget=forms.HiddenInput(), queryset=Company.objects.all(), required=False) choices.append('Company') # association if user.has_perm("myapp.perm_association") self.fields['association'] = forms.ModelChoiceField(widget=forms.HiddenInput(), queryset=Association.objects.all(), required=False) choices.append('Association') # choices self.fields['type_resource'] = forms.ChoiceField(choices = choices) class Meta: Model = Title This ModelForm does the work : i hide each field on the template and make them appearing thanks to javascript... The problem is this ModelForm is that each field defined in the model will be displayed on the template. I would like to remove them from the form if they are not needed: exemple : if the user has no right on the model Company, it won't be used it in the rendered form in the template. The problem of that is you have to put the list of fields in the Meta class of the form with fields or exclude attribute, but i don't know how to manage them dynamically. Any Idea?? Thanks by advance for any answer.

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