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• WPF ListBoxItem double-click?

  - by David Veeneman

  The WPF ListBox doesn't have a DoubleClick event, at least not as far as I can tell. Is there a workaround for this issue that would let me double-click on an item to have an event handler do something with it? Thanks for your help.

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• WPF ComboBox SelectedItem not Updating

  - by viky

  I am facing a problem while working with a WPF ComboBox. My situation is that I have a ComboBox that is displaying some values. I am adding ContentControls to ComboBox' Items property. I have bound the Content of these ContentControl to some datasource so that I can change the Content dynamically. The problem is if the Content of item which is selected changes the item in ComboBox drop down updates but item in ComboBox SelectionChange remains same. Any suggestions please?

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• Masked Time control in WPF

  - by Ashish Ashu

  We are in need of a control in which we can show the elapsed time in "Hour:Min:Sec" format. This control should have a spin control attached with it. Whenever we spin the spin window, it should increment the selected option ( Either hour, or min , or sec). Also the Hour may have values between 0 to 99 , Min many have values between 0 to 59 and Sec may have values between 0 to 59. Is anybody know this type of control in WPF?

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• Zoom control to WPF Form

  - by Paulo

  How can I implement a zoom control to my wpf forms similar to the one avaialble in the visual studio designer? thanks!

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• Setting a theme in WPF

  - by muckdog12

  I have a relativly simple question that I can't seem to figure out. I have downloaded some theme files in an XAML format off the internet and I would like to use them as my themes in my WPF application. How do you do this? All help is appreciated!

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• controls layout WPF

  - by jonathan

  i have a LOB application with 30 fields to put in a form. I found it very painful to put them in the window with a grid. is there a productive way to build entry forms in WPF . Thanks John

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• Creating transparent background in WPF

  - by Vinjamuri

  I have a button with a backgroun image of color white. My button is sitting on the toolbar which has a bacground color of Blue. When the button is sitting on the toolbar, the button looks white, however I want it to look like blue as the the background color of toolbar is Blue. How should I achieve this in WPF.. Please let me know.

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• How to set an event for all cells in WPF Datagrid

  - by Natxo

  I need OnDragEnter event for every cell on my WPF Datagrid. I tried this : <ControlTemplate TargetType="{x:Type my:DataGridCell}" x:Key="RowTemplate"> <ContentPresenter DragEnter="ContentPresenter_DragEnter" > </ContentPresenter> </ControlTemplate> But doesn't seem to work. Any ideas people?

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• WPF Copy / Paste functionality

  - by Wasim

  Hi all , I want to supply copy funtionality to my WPF app. I display texts in textblocks whitch comes from the server . The user cann't copy this texts and use them. How can do it ? Please you help. Thanks...

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• WPF DataGrid Styling

  - by alex

  Does anybody know/have an example of how to change WPF DataGrid layout to be something like card-view or anything else, not just stack of rows?

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• Question regarding WPF triggers

  - by Zoliq

  Hi, I have a problem with WPF triggers. In my application i used a multitrigger but would like to achieve that changes made when a trigger's conditions becomes true to persist and to be invalidated when the trigger's conditions become false. Is it possible to realize what I want ? Thanks in advance.

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• WPF customer control and direct content support

  - by Mmarquee

  I am fairly new to WPF, and am a bit stuck, so any help would be appreciated. I am trying to write WPF custom control that encapsulates several elements of functionality that I already having working (i.e sorting, filtering, standard menus, etc.), but in a nice neat package to avoid repetition. Anyway I have created the custom control (based on control), and then have the following in the Generic.Xaml <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:Controls.ListViewExtended"> <Style TargetType="{x:Type local:ListViewExtended}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type local:ListViewExtended}"> <Border Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}"> <ListView> <ListView.View> <GridView> <!-- Content goes here --> </GridView> </ListView.View> </ListView> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> </ResourceDictionary> When I try to add GridViewColumns (or any control really), as below ... <elv:ListViewExtended> <GridView> <GridViewColumn Width="140" Header="Column 1" /> <GridViewColumn Width="140" Header="Column 2" /> <GridViewColumn Width="140" Header="Column 3" /> </GridView> </elv:ListViewExtended> I get the "... does not support direct content" error. I have created a dependancy property (again below) that allows the adding of GridView, but it still doesn't work. public static DependencyProperty GridViewProperty; public static string GridViewHeader(DependencyObject target) { return (string)target.GetValue(GridViewProperty); } public static void GridViewHeader(DependencyObject target, string value) { target.SetValue(GridViewProperty, value); } Thanks in advance

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• WPF Binding a textbox to a property of all items in a generic list

  - by muku

  Hello guys, What I want to do is simple. I have a generic list of objects. Let's say the object class contains a property named Height. What I want to do is bind a textbox's text in the UI with this list and when i change the value in the textbox then all objects in the list update their height value. I am new in WPF, I have studied the MVVM pattern, I can do simple data binding but i can't figure out how to do this :'( Thanks!

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• WPF binding not updating until after another action

  - by Matthew Stanford

  I have an observable collection bound to a listbox in WPF. One of the options in the window is to use an OpenFileDialog to add an item to the listbox with certain properties. When I use the OpenFileDialog it immeditaely sets two of the properties of the new item in the observable collection. I am using INotifyPropertyChanged to update the listbox. These two new properties are set correctly and now the listbox should display the title contained in the new title property and the title textbox which is bound to the listbox should display the new title as well. However, neither displays the new title upon the closing of the OpenFileDialog and when I click on another item in the listbox and come back to the item I have just changed it updates the title textbox but the title displayed in the list box is not changed until i move the item in the list box that I want to change. Here is the Binding code. ItemsSource="{Binding Path=MyData, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" And here is the implementation of the browse button that is not working (L1 being the listbox) private void browse_Click(object sender, RoutedEventArgs e) { OpenFileDialog opf = new OpenFileDialog(); opf.ShowDialog(); MyData[L1.SelectedIndex].Title = System.IO.Path.GetFileNameWithoutExtension(opf.FileName); MyData[L1.SelectedIndex].Command = opf.FileName; } When I simply type in the text boxes and click out of them it updates the list box immediately with the new information I have put in. I also have a create new button and upon clicking it, it immediately adds a new item to the list box and updates its' properties. The only one that is not updating correctly is this peice of code I have given you. Thanks for your help. EDIT: Here is my implementation of INotifyPropertyChanged private OCLB _MyData; public OCLB MyData { get { return _MyData; } set { _MyData= value; FirePropertyNotifyChanged("MyData"); } } OCLB is the obserable collection. Here is the function FirePropertyNotifyChanged public event PropertyChangedEventHandler PropertyChanged; private void FirePropertyNotifyChanged(string propertyName) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } } Each of these are in the partial class MainWindow for the wpf form. I also have a class for the MyData files (with 4 get/set functions) that are stored in the OCLB(observable collection). There is also a class with functions for the OCLB.

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• Show Hint Tip of a truncated WPF ListBox Item

  - by vbnc141

  Hi, Been searching all over but could not find the answer I am looking for; perhaps I'm not using the correct search term. Anyways, my question is whether there is a property on the WPF ListBox control which I can set that will automatically display the full text of a truncated list item into a Hint Tip? For example, with some WinForm list-container controls, the Hint Tip only appears when the mouse is hovered over a list item that is truncated.

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• Best practices for dimensioning control panels in WPF

  - by vizcaynot

  Hello: I defined a Window in WPF, into this one I put a "stack panel" and inside this panel I put a "tab control" and some "button controls". When executing the program, I would like that when I have to resize the window using the mouse, the stack panel and all controls inside it can also be resized automatically and proportionally to the window. How can I get this? Thanks!!

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• How to add a focus to an editable ComboBox in WPF

  - by RAJ K

  I am using an editable ComboBox in wpf but when i try to set focus from C# code, it is only shows selection. but i want to go for edit option (cursor should display for user input).

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• WPF datagrid template

  - by MadSeb

  Hi, I want to make a WPF datagrid look similar to the HTML grid in the following picture: http://img443.imageshack.us/img443/2563/saltoftheearth.jpg Does anyone know an easy way to do this ? Regards, S.

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• Custom button template in wpf

  - by Archana R

  Hello, I want to create a simple button template with an image and text inside it. But i want to keep the System button's look and feel. Can anyone tell me step by step how to create it? P.S. : I have already tried it with CustomControl in wpf and BasedOn property.

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• Win a Free Copy of Windows Presentation Foundation 4.5 Cookbook

  - by Ricardo Peres

  Win A free copy of the 'Windows Presentation Foundation 4.5 Cookbook', just by commenting! For the contest, Packt Publishing has two eBook copies of Windows Presentation Foundation 4.5 Cookbookto be given away to two lucky winners. How you can win: To win your copy of this book, all you need to do is come up with a comment below highlighting the reason "why you would like to win this book”. Duration of the contest & selection of winners: The contest is valid for 7 days (until November 26), and is open to everyone. Winners will be selected on the basis of their comment posted. Windows Presentation Foundation 4.5 Cookbookis written by Pavel Yosifovich, the CTO of CodeValue (http://www.codevalue.net), a software development, consulting, and training company, based in Israel. This book is written in an easy-to-read style, with a strong emphasis on real-world, practical examples. Step-by-step explanations are provided for performing important tasks. This book is the best guide for C# developer who is looking forward to increase understanding and knowledge of WPF. Using this book, readers will learn to build complex and flexible user interfaces using XAML, perform lengthy operations asynchronously while keeping the UI responsive, get well-versed with WPF features such as data binding, layout, resources, templates, and styles and also customize a control’s template to alter appearance but preserve behavior. In the next days I will post my review on this book. In the meantime, here’s the table of contents: Preface Chapter 1: Foundations Chapter 2: Resources Chapter 3: Layout and Panels Chapter 4: Using Standard Controls Chapter 5: Application and Windows Chapter 6: Data Binding Chapter 7: Commands and MVVM Chapter 8: Styles, Triggers, and Control Templates Chapter 9: Graphics and Animation Chapter 10: Custom Elements Chapter 11: Threading Index I’m waiting for your comments!

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• Wpf: Storyboard.TargetName works, but Setter TargetName doesn't.

  - by MainMa

  Hi, Let's say we have a XAML code like this: <Style TargetType="{x:Type ListBoxItem}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type ListBoxItem}"> <Border HorizontalAlignment="Center" VerticalAlignment="Center"> <Border.LayoutTransform> <!--We are rotating randomly each image. Selected one will be rotated to 45°.--> <RotateTransform Angle="{Binding RandomAngle}" x:Name="globalRotation"/> </Border.LayoutTransform> <Grid> <Image Source="{Binding ImageLocation}" Stretch="None" /> <TextBlock x:Name="title" Text="{Binding Title}" /> </Grid> </Border> <ControlTemplate.Triggers> <Trigger Property="IsSelected" Value="True"> <Setter TargetName="title" Property="Visibility" Value="Visible"/> <!--The next line will not compile.--> <Setter TargetName="globalRotation" Property="Angle" Value="45"/> <Trigger.EnterActions> <BeginStoryboard> <Storyboard> <!--This compiles well.--> <DoubleAnimation Storyboard.TargetName="globalRotation" Storyboard.TargetProperty="Angle" To="45" Duration="00:00:03"/> </Storyboard> </BeginStoryboard> </Trigger.EnterActions> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> This code is intended to display a set of images in a listbox. Each image has a random rotation, but when selected, rotates to 45 degrees. Rotating selected image through a storyboard works well. I just specify Storyboard.TargetName and it rotates the image when selected (Trigger.ExitActions is omitted to make the code shorter). Now, if I want, instead of using a storyboard, assign 45 degrees value directly, I can't do that, because <Setter TargetName="globalRotation" Property="Angle" Value="45"/>: it compiles with "Cannot find the Trigger target 'globalRotation'. (The target must appear before any Setters, Triggers, or Conditions that use it.)" error. What happens? I suppose that Storyboard.TargetName is evaluated during runtime, so let me compile it. Is it right? How to make it work with just a setter, without using a storyboard?

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• WPF Dockable Windows Like iGoogle

  - by Anon

  I'm looking for a dockable windows/panel control in the style of iGoogle. All of the ones I have found so far all have a fixed length on the height of your window/panel but I want to be able to have windows of varying length like iGoogle. The best I have found so far has been a control libarary called BlackLight which does not have the feature explained above.

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• ListBoxItem IsSelected style

  - by plotnick

  I still didn't get it. Could you please show me exactly how to override ListBox's default behavior. Everytime when ListBoxItem is selected the Border's background should be changed. Not the background of the whole row but only background of the border which's specified. <ListBox ItemsSource="{Binding Source={StaticResource AssetsViewSource}}"> <ListBox.ItemTemplate> <DataTemplate> <Border BorderThickness="2" BorderBrush="Black"> <StackPanel> <TextBlock Text="Name: " /> <TextBlock Text="{Binding Name}" /> </StackPanel> </Border> </DataTemplate> </ListBox.ItemTemplate> </ListBox>

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• WPF WebBrowser: How to set element click event?

  - by Ralph

  I've figured out how to make everything red as soon as the page is finished loading: private void webBrowser1_LoadCompleted(object sender, NavigationEventArgs e) { var doc = (IHTMLDocument2)webBrowser1.Document; foreach (IHTMLElement elem in doc.all) { elem.style.backgroundColor = "#ff0000"; } } Now what if I want to make the element only change color when it's clicked? I see that elem has an onclick property, but it's type is dynamic so I don't know what to do with it. The documentation is pretty useless.

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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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