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  • WPF Enable/Disabled controls from a page placed inside main window application

    - by toni
    Hi! I have an WPF application that has a main window. In the left side of this Window there are some buttons into a listbox, it is a kind of menu to access faster to pages. These buttons belongs to pages that they are loaded inside the window when the user selects one. Main window also has another main menu in the top for doing other tasks. When a page is loaded in the main window and the user clicks a button of this currently loaded page, it starts a task that takes a long time. While this long task is executing I want the user can not select (or press) any of the buttons into the listbox because In the loaded page the long task also is updating the UI for this page. I would like to disabled (isEnabled=false) the listbox when long task is executing and not to enabled it until the long task has finished. How can I do this? I mean, from the page is currently loaded I want to disabled the listbox placed in the main window that is the owner. The listbox doesn't belong to the currently loaded page. Thanks!

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  • WPF - expander Collapsed event being triggered by child controls with validation

    - by Shaboboo
    I have an expander that contains an ItemsControl. The items in the itemsControl are templated, some have textboxes in them, others have checkboxes. Both have bindings that cause validation. The styling and validation is working as expected. The problem is when I first expand the expander and cause a change to either control, the expander collapses again, this is not what I want. If I repeat this a second time this does not happen. I'm not sure what is triggering this strange behaviour. I've tried setting the focus to the itemsControl when the expander expands with no luck. What is differnt the second time it's expanded? Could it be the validation? Any Ideas? XAML: <Expander Header="{Binding SubSectionName}" Padding="0" > <ItemsControl ItemsSource="{Binding ConfigSubSectionSettings}" ItemTemplateSelector="{StaticResource Settings_Selector}" /> </Expander> <!-- Templates selected by the ItemTemplateSelector --> <DataTemplate x:Key="subSection_Bool"> <StackPanel Orientation="Horizontal"> <TextBlock x:Name="lbl" Text="{Binding SubSectionName}" > <CheckBox x:Name="chk" IsChecked="{Binding BoolValue, ValidatesOnDataErrors=True}" VerticalAlignment="Center" Margin="2" > </StackPanel > </DataTemplate> <DataTemplate x:Key="subSection_Text"> <StackPanel Orientation="Horizontal"> <TextBlock x:Name="lbl" Text="{Binding SubSectionName}" /> <TextBox x:Name="txt" VerticalAlignment="Center" Text="{Binding StringValue, ValidatesOnDataErrors=True}" /> </StackPanel> </DataTemplate>

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  • WPF multitrigger referencing 2 other controls

    - by BrettRobi
    I have two CheckBoxes and a TextBox. I want to TextBox to have IsEnabled=False if both CheckBoxes have IsChecked=False. Can I do this with a MultiTrigger? I keep getting errors trying to use the Source property. I have it working with MultiDataTriggers as you can see below. But have two questions. 1) Is this my only choice? Can I do it with a MultiTrigger? <TextBox.Style> <Style TargetType="TextBox"> <Style.Triggers> <MultiDataTrigger> <MultiDataTrigger.Conditions> <Condition Binding="{Binding ElementName=uxDmm , Path=IsChecked}" Value="False" /> <Condition Binding="{Binding ElementName=uxGpm , Path=IsChecked}" Value="False" /> </MultiDataTrigger.Conditions> <Setter Property="IsEnabled" Value="False" /> </MultiDataTrigger> </Style.Triggers> </Style> </TextBox.Style> 2) Can I do this outside of the tag? I'm not really sure where Triggers can be applied, most samples do it within Style or DataTemplates, but defining it within a Style is messing up my default look and feel for the TextBox.

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  • TreeView Controls - HTREEVIEW

    - by nXqd
    I'm new to win32 API programming and I try to understand source code of treeview from codeproject. But I really don't understand this : BOOL TreeView::DoNotify(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam) { // blah blah HTREEVIEW Selected = (HTREEITEM)SendDlgItemMessage(hWnd,ID_TREE,TVM_GETNEXTITEM,TVGN_CARET,(LPARAM)Selected); // halb halb } It doesn't work ( Selected is used without initializing) until I declare Selected as global variable. Thanks for reading this and I need your help .

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  • Geopraphic Charting controls for Websites

    - by Ian
    Hi All, I need to create dash boards showing geographic regions and show sales, hot spots etc on a map. What have you tried and what do you recommend? I like the look of both Fusion Charts and Dundas I will be using asp.net for the site but any control's or library's including flash or javascript are good options. Most important is the look and feel followed by functionality in South Africa. After my last post looking for commercial mapping solutions, it looks like they are very expensive and now I am investigating alternatives to full mapping solutions. thanks

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  • Adding custom valiadtion to ASP.NET controls

    - by Brian
    We're trying to build a simple asp control for some clients where they can just drop in a single block - i.e. <captcha:CaptchaControl ID="CaptchaControl1" runat="server" Server="http://localhost:51947/" /> and have it render the control. The catch is that I can't get this to include custom validation. Right now I'm using the RenderContents function to display the layout of the control itself as well as hook it up the to Javascript. The problem is that I don't know how to get custom validation to fire when used as part of a control. protected override void RenderContents(HtmlTextWriter output) { output.Write(@" <script type=""text/javascript"" src=""http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js""></script> <link rel=""stylesheet"" type=""text/css"" href=""/Layout/CaptchaLayout.css"" /> //etc <asp:Textbox id=""text1"" runat=""server"" text=""""></asp:Textbox> <asp:CustomValidator id=""CustomValidator2"" runat=""server"" ControlToValidate = ""text1"" ErrorMessage = ""You must enter at least 8 characters!"" ClientValidationFunction=""validateLength"" > </asp:CustomValidator>" ); } Any suggestions for a better way to do this?

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  • WPF: change binding properties for multiple controls

    - by Catalin DICU
    I'd like that all the Text bindings for the TextBoxes in my UserControl to have UpdateSourceTrigger=PropertyChanged, and ValidatesOnDataErrors=True How to do it ? I can think of a solution: use another class for bindings (a class inheriting Binding) but maybe there is another solution, maybe using a style or template ?

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  • jquery validation of controls

    - by Vinodtiru
    Hi , I am looking at validation of some text boxes for somethings like required, minlength, max length, email etc... I am able to get examples that work fine on submit button on page. I want to do this validation on a button click which will only raise a ajax request and not submit of page. On internet all the sample is found was with submit button. Is there a easy way to change this code a little bit o make it work for non submit button click or any new jquery or java plugin to do the same. I am using the jquery.validation.js for now. This works with submit buttons. Any kind of help with suggestion or help is appreciated. Thanks in advance.

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  • WinForms: Making a set of controls scale vertically.

    - by DonaldRay
    I have a Windows Form that displays several DataGridViews in the following layout: (No access to image hosting at work, so please pardon the ASCII art...) +-----------------------------------------+ ¦+-----------++--------------------------+¦ ¦¦ ¦¦ ¦¦ ¦+-----------+¦ ¦¦ |+-----------+¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦+-----------+¦ ¦¦ |+-----------+¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦+-----------++--------------------------+¦ +-----------------------------------------+ Unfortunately, when the user resizes the form to be taller, the form ends up looking like this: +-----------------------------------------+ ¦+-----------++--------------------------+¦ ¦¦ ¦¦ ¦¦ ¦+-----------+¦ ¦¦ | | || | | || |+-----------+¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦+-----------+¦ ¦¦ | | || | | || |+-----------+¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦+-----------++--------------------------+¦ +-----------------------------------------+ Instead of this: +-----------------------------------------+ ¦+-----------++--------------------------+¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦+-----------+¦ ¦¦ |+-----------+¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦+-----------+¦ ¦¦ |+-----------+¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦¦ ¦+-----------++--------------------------+¦ +-----------------------------------------+ To reproduce this, anchor the Top-Left DataGridView to Top-Left, the Center-Left DataGridView to Left, and the Bottom-Left DataGridView to Bottom-Left, and the big DataGridView to all 4. What can I do to get the behavior I want?

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  • Dynamically add User Controls to a Silverlight 4 page

    - by PilotBob
    I am building an iGoogle like "dashboard" for our application with silverlight 4. Each users dashboard (which snapins and their positions) will be stored in the database. Each snap in is a user control, for example... AwesomeSnapin.xaml. On the dashboard page in silverlight I am retrieving the users dashboard which is a collection of snapin objects which include the information on the snapin. I can store the name of the page or the class or whatever is needed. I have the following code which loops through the collection of snapins to add them to the dashboard page. In testing I have just hard coded a single snapin item. Here is the prototype code: foreach (var UserSnapin in op.Entities) { UserControl uc = new AmsiSL.eFinancials.BudgetCheck(); Canvas.SetLeft(uc, UserSnapin.PositionLeft); Canvas.SetTop(uc, UserSnapin.PositionTop); Layout.Children.Add(uc); MessageBox.Show(String.Format("Added {0}",UserSnapin.Snapin.Name)); } The above works fine... but of course adds the BudgetCheck snapin for every item that is defined for the users dashboard. Of course the messagebox is for debugging purposes only. How would I change line 3 of that to load the user control class (using classname or xaml path whichever is better) based on the data in the collection.

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  • (C# - windows forms) changing properties of controls that were added at runtime

    - by user257412
    I have a form in which several buttons are added at runtime via a 'for' method public Form() { for (int i = 0 ... ) Button b = new Button() b.text = (string) i ; etc.. etc.. } . now i wish to change the text property of the buttons on a certain event. How can this be accomplished? I have tried a few things but none worked.. since the buttons variables are inside the method , they are not available outside. Thanks

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  • Web Data controls

    - by Nani
    Hi, I need to implement Grouping, Sorting, Collapsable for a sql datasource. I shouldn't use third party tools. From last 2 days I was searching net, but dint got the solution. Plz help me in getting these functionalities using any kind of web data control(grid view, repeater, ..) Thank You

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  • ActiveX controls with old Delphi versions

    - by DamienD
    I'm testing a non visual ActiveX control based on a registered .ocx which I import into Delphi using the provided wizard. Then, I simply put the generated component on the main form of a new VCL application. Under old Delphi versions (D5 and D2007), when i launch the application, this raise an AV during the component initialization. with Delphi 2009 : no problem, the application starts smoothly. My questions are : Are there known enhancements of ActiveX management in recent Delphi versions which can explain this difference ? Can I suspect a bug in the ActiveX control, or can I consider the origin of the problem is from old Delphi versions ? I need to use this component (if tests OK) in D2007. Do you think that it is possible to correct the AV problem under D2007 by modifying the D2007 generated .tlb file (for example by trying to use the D2009 generated one) PS: the ActiveX control is not named, because my question is a general question about Delphi and ActiveX, not about a specific ActiveX control.

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  • Type-conditional controls in Haskell

    - by estanford
    I'm going through the 99 Haskell problems to build my proficiency with the language. On problem 7 ("Flatten a nested list structure"), I found myself wanting to define a conditional behavior based on the type of argument passed to a function. That is, since *Main> :t 1 1 :: (Num t) => t *Main> :t [1,2] [1,2] :: (Num t) => [t] *Main> :t [[1],[2]] [[1],[2]] :: (Num t) => [[t]] (i.e. lists nested at different levels have different data types) it seems like I should be able to write a function that can read the type of the argument, and then behave accordingly. My first attempt was along these lines: listflatten l = do if (:t l) /= ((Num t) => [t]) then listflatten (foldl (++) [] l) else id l But when I try to do that, Haskell returns a parse error. Is Haskell flexible enough to allow this sort of type manipulation, do I need to find another way?

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  • Accessing other controls by name in a Silverlight ControlTemplate

    - by Chris S
    I have a custom control that inherits from ContentControl. Inside the generic.xaml file is a simple Grid with 2 rows: Row 1 - A toggle button Row 2 - A StackPanel with a TextBlock, named "Stackpanel1" The ToggleButton has its own nested ControlTemplate which has VisualStates for Checked/Unchecked. Is it possible to reference "Stackpanel1" from inside the ToggleButton's control template somehow? In order to show or hide the stackpanel.

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  • Mailing Address is forcing 2nd Record in CSV (DevExpress Controls)

    - by Gerhard Weiss
    My DevExpress CSV export has two lines per record. Rank Score,Prog.,Full Address 63.30 ,JIW ,1234 Whispering Pines Dr , ,Sometown MI 48316 62.80 ,JIW ,9876 Beagle Dr , ,Sometown Twp MI 48382 I would like to change it to one line because I want to do a Word Merge. (Unless Word can merge these two lines back together, which I do not thing it can do) Does the DevExpress XtraGrid ExportToText allow for this? A MemoEdit is being used by the XtraGrid and is initialized using the following code (Noticed the ControlChars.NewLine): Public ReadOnly Property FullAddress() As String Get Dim strAddress As System.Text.StringBuilder = New StringBuilder() If Not IsNullEntity Then strAddress.Append(Line1 + ControlChars.NewLine) If Not Line2 Is Nothing AndAlso Me.Line2.Length > 0 Then strAddress.Append(Line2 + ControlChars.NewLine) End If If Not Line3 Is Nothing AndAlso Me.Line3.Length > 0 Then strAddress.Append(Line3 + ControlChars.NewLine) End If strAddress.Append(String.Format("{0} {1} {2}", City, RegionCode, PostalCode)) If Me.Country <> "UNITED STATES" Then strAddress.Append(ControlChars.NewLine + Me.Country) End If End If Return strAddress.ToString End Get End Property Here is the export to CSV code: Dim saveFile As New SaveFileDialog With saveFile '.InitialDirectory = ClientManager.CurrentClient.Entity.StudentPictureDirectory .FileName = "ApplicantList.csv" .CheckPathExists = True .CheckFileExists = False .Filter = "All Files (*.*)|*.*" End With If saveFile.ShowDialog() = Windows.Forms.DialogResult.OK Then Dim PrintingTextExportOptions As New DevExpress.XtraPrinting.TextExportOptions(",", Encoding.ASCII) PrintingTextExportOptions.QuoteStringsWithSeparators = True ApplicantRankListViewsGridControl.ExportToText(saveFile.FileName, PrintingTextExportOptions) End If

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  • Collapsible controls in MFC (example included)

    - by John
    In the WindowsXP Control panel, you can see a nice collapsible panel control on the left: These are not just collapsible, but animated too. I wondered if these are any kind of control accessible to a developer, specifically in MFC? Or are they custom/bespoke functionality?

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  • Question about migrating from ASP .NET User Controls to .NET 3.5 Master Page technology

    - by Jim McFetridge
    When migrating from an ASP .NET user control -based page with a header, footer, and menu to a Master Page using the same HTML mark-up, is it normal for CSS or javascript behaviors to change slightly? In particular, the submenu bar text now appears run together (which looks like a CSS symptom) and the graphics on the line above it appear to have an incorrect z-order. (The menu operation is javascript-based.) (I tried to paste images here but couldn't.) Also, the site is very large and we've not been given permission to redo the menu for the entire site. This is a forward-only migration. (Because I know that someone will ask.) Assuming that there are no changes in scope, what are the things that I should check? Thanks! Jim

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  • client side validation in ascx files (user controls) for asp.net mvc

    - by Sefer KILIÇ
    hi, I have a logOn forn in ascx files and I render it as partial. How I can add a clinet side validation to this form, have any idea ? My below code does not work <%= Html.ValidationSummary(true, "Giris basarisiz oldu. Lütfen hatalari düzeltip tekrar deneyin.") %> <% Html.EnableClientValidation(); %> <% using (Html.BeginForm("LogOnProcess", "Account")) { %> <div> <fieldset> <legend>Hesap Bilgileri</legend> <div class="editor-label"> <%= Html.LabelFor(m => m.UserName) %> </div> <div class="editor-field"> <%= Html.TextBoxFor(m => m.UserName) %> <%= Html.ValidationMessageFor(m => m.UserName) %> </div> <div class="editor-label"> <%= Html.LabelFor(m => m.Password) %> </div> <div class="editor-field"> <%= Html.PasswordFor(m => m.Password) %> <%= Html.ValidationMessageFor(m => m.Password) %> </div> <div class="editor-label"> <%= Html.CheckBoxFor(m => m.RememberMe) %> <%= Html.LabelFor(m => m.RememberMe) %> </div> <p> <input type="submit" value="Giris" /> </p> </fieldset> </div> <% } %>

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  • Unit testing "hybrid" WPF/Silverlight controls

    - by Alan Mendelevich
    I'm starting a new WPF/Silverlight custom control project and wanted to do unit testing on this one. However I'm a little confused about how to approach this. This control would be based on the same codebase for both WPF and Silverlight with minor forking using #ifs and partial classes to tame the differences. I guess I could write unit tests for WPF part with NUnit, MSTest, xUnit, etc. and for the Silverlight part with Silverlight Unit Test Framework but this doesn't sound very elegant to me. I'd have to either ignore testing identical code on one of the platforms and test only differing parts (which is not very trustworthy) or rewrite tests for 2 frameworks (which is annoying). Is this the right way to go? I'm wondering if there's some guidance, articles, tutorials out there on how to approach this task. Any pointers?

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