wpf

Steps to take for figuring out the delay when calling service and loading data with the result?

Hello, In a client server app, where client front end is done in silverlight using C# and the services are the WCF services. If I am to hit the service and do a query and bring back a result and I notice that it is taking a relatively long time to load my page which is just loading the grid with the data, what things should I look at ...

How do I change text color on the selected row inside a ListView/GridView? (using Expression Dark theme)

I'm using theExpression Dark WPF Theme(http://wpfthemes.codeplex.com/) with a ListView(view property set to a GridView) to display some user data like the following : <ListView Grid.Row="1" ItemsSource="{Binding RegisteredUsers}" SelectedItem="{Binding SelectedUser}" > <ListView.View> <GridView> ...

Issue displaying a local image from XAML

Hello, I have the below simple xaml: <Window x:Class="WpfApplication1.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="300" Width="300"> <Grid> <Image Source="happyface.jpg"/> </Grid> </Window> happyface.jpg is ...

Problem With WPF C# App Spawning Two Main Windows

I've been working on this app for the last few days and suddenly this super weird problem starting happening where 2 of my primary windows starting spawning during run time. I've searched for 3 hours and can't find where or why this is happening. If you want to show a stranger some love, can you help me find why this is happening? My pr...

Taking out FilterRow from XCeed DataGrid control

Is it possible to pull out filter row from XCeed DataGrid control to some other place like group box ? If possible, how ? Any pointers will be appreciated. Please consider scenario given below where when I click on Filter button, Product Name column will be filtered according to filter query. For doing this scenario I need to take out F...

How do I get the object that called (executed) my vb.net subroutine inside my object?

I'm trying to extend my new WPF Touch Screen Keyboard (DLL) Library, to allow the user to get events from the Touch Screen Object. I'd like to be able to tell the Programmer what Object made the call (or executed the subroutine) that raised the event. Not dissimilar to the Sender as Object event parameters one gets when working with a Sy...

trouble animating GridLengths with star-values

Hi all. I'm using a third-party GridLengthAnimation class which is built to animate just like a DoubleAnimation class. I've used it many times before and it has never failed me - until now. I am trying to use it to expand/collapse part of my form based on the user checking a +/- checkbox to expand/collapse it. You know the drill. Th...

Can I set the app.config 'useLegacyV2RuntimeActivationPolicy' attribute progamatically?

I had to migrate a .NET 3.5 to 4.0 but some dll's were not loading, after googling I found that creating an app.config would solve it: <?xml version="1.0" encoding="utf-8" ?> <configuration> <startup useLegacyV2RuntimeActivationPolicy="true"> <supportedRuntime version="v4.0" /> </startup> </configuration> I would like to setup...

WPF, PreviewKeyDown event and underscore char

Hi, I'm catching key hits with PreviewKeyDown event in my WPF component. I need to distinguish characters being typed: letters vs. numbers vs. underscore vs. anything else. Letters and numbers work fine (just convert the Key property of the KeyEventArgs object to string and work with character 0 of that string), but this won't work fo...

WPF Control Templating: Keeping Windows look and feel

I'm working on a control template for an inherited TextBox class. I'd like to use this template to add additional controls with the ScrollViewer. I can achieve that goal just fine, what I can't do recreate the border in such away that it matches the Windows look and feel. I have Windows Classic as my theme on XP. Textboxes are typicall...

Prism: How to render one view on top of another

We have a Prism/WPF application and are using an expander to animate a menu. When the expander expands, the content is rendered behind the main region's content. The menu is in a different region than the content it is supposed to overlay (since the menu governs what items go into that region) which is why this is occurring. We have...

Is there a MergedGradientBrush in wpf?

Suppose I had two brushes. One that was a linear gradient brush that was from Dark to light One was a radial brush that went from Dark to light. How could I merge the brushes so that when I apply them, I can apply both at once. EG Check this: 1) http://www.codeproject.com/KB/vista/WindowsVistaRenderer/VistaRenderer4.gif 2) http://www....

How to pass data between controls and persist the values in WPF

I am stuck on how to pass data from one control to another. If I have a listbox control and the Contol Item contains a datatemplate which renders out 5 fields ( first name, last name, email, phone and DOB) all of which come from an observable collection. How can I allow the user to select a listbox item and have the valuesbe stored withi...

Bind to a collection's view and just call ToString() in WPF

I'm binding a GridView to a collection of objects that look like this: public class Transaction { public string PersonName { get; set; } public DateTime TransactionDate { get; set; } public MoneyCollection TransactedMoney { get; set;} } MoneyCollection simply inherits from ObservableCollection<T>, and is a collection of MyMon...

Add animation when user control get visible and collapsed In Wpf

I have two xaml files MainWindow.xaml and other user control WorkDetail.xaml file. MainWindow.xaml file has a textbox, button, listbox and reference to WorkDetail.xaml(user control which is collapsed). Whenever user enter any text, it gets added in listbox when the add button is clicked. When any items from the listbox is double clicked,...

What do I need to do to make a WPF Browser Application (XBAP) that requires Full Trust work on Windows 7?

So this is a Visual Studio 2008, .NET, WPF, XBAP, Windows 7 question, regarding .NET trust policies. At work, we have several Web Browser Applications (.XBAP files) developed with Visual Studio 2008 (so .NET 3.5) that we deployed internally. These required a .NET FullTrust policy, we found a way to make a .MSI that adjusted the policy o...

Custom WPF namespace mappings failing in Visual Studio 2010

I just installed Visual Studio 2010 and converted one of my Visual Studio 2008 WPF projects over for testing. While the project builds and runs correctly, the VS Designer cannot handle the custom namespace mappings I have giving the error: Assembly must be specified for XAML files that are not part of a project. Reopen this XAML fil...

Custom CheckBox in WPF DataGrid does not update binding

In my Visual Studio 2010 WPF application, I have the following (simplified) style: <Style x:Key="MyStyle" TargetType="{x:Type CheckBox}"> <Setter Property="Background" Value="Blue" /> </Style> If I use it as the ElementStyle AND EditingElementStyle in my DataGridCheckBoxColumn: <DataGridCheckBoxColumn Binding="{Binding IsEnab...

Get First Visible Item in WPF ListView C#

Anyone know how to get a ListViewItem by grabbing the first visible item in the ListView? I know how to get the item at index 0, but not the first visible one. ...

WPF - Handling events from user control in View Model

I’m building a WPF application using MVVM pattern (both are new technologies for me). I use user controls for simple bits of reusable functionality that doesn’t contain business logic, and MVVM pattern to build application logic. Suppose a view contains my user control that fires events, and I want to add an event handler to that event. ...