I've got a p-invoke call to an unmanaged DLL that was failing in my WPF app but not in a simple, starter WPF app. I tried to figure out what the problem was but eventually came to the conclusion that if I assign too much memory before making the call, the call fails. I had two separate blocks of code, both of which would succeed on their...
This has to be the simplest of all questions, but I can not seem to figure it out. I have the progress bar in place, how do I make it show progress. How do I start the thing? <ProgressBar x:Name="ProgressUpload" Margin="5" IsIndeterminate="True" ></ProgressBar> ...
I thought what I was doing was right out of the Josh Smith MVVM handbook, but I seem to be having a lot of problems with value converters firing when no data in the view-model has changed. So, I have a ContentControl defined in XAML like this: <ContentControl Grid.Row="0" Content="{Binding CurrentViewModel}" /> The Window containing ...
I'm using VS 2010 on Windows Server 2003, running on a Dell Inspiron 9400 laptop. VS 2010 runs fine, except for persistent and random screen re-drawing issues. Samples of these are here. These artifacts occur as the mouse moves over items that highlight on a mouse-over event, while scrolling, and when switching tabs. VS 2008 has non of ...
WPF's TextBox (System.Windows.Controls.TextBox) appears to highlight selected text only when it has the focus. I need to make a TextBox continue to show the selection when focus is lost. In a standard Win32 EDIT control I could achieve this with ES_NOHIDESEL. How can I get the equivalent in WPF? ...
I need to create a ContextMenu where I want to pass a currently selected index of the datagrid to a ViewModel using CommandParameter. The following Xaml code doesn't work. What might be the problem? <dg:DataGrid ItemsSource="{Binding MarketsRows}" <dg:DataGrid.ContextMenu > <ContextMenu > <MenuItem Header="Add Di...
Hello, I'm looking for a decent WPF data grid or solution involving one to represent financial data. I've looked at many - the WPF one, XCeed, Ingragistics, DevExpress, etc.... but none of them seem to offer the simple requirement I have: I want to be able to display group subtotals in their columns in the group row, e.g. GROUP 1 ...
Hi; I just downloaded the last version of Reflector from RedGate and I was unable to decompile classes in some core WPF assemblies like PresentationCore and PresentationFramework. Here is a link to a picture that describes my problem: http://997966480542455630-a-1802744773732722657-s-sites.googlegroups.com/site/badrdocs/files/Reflector...
As a personal project, I'm putting together a C# WPF calendar. I'm stuck on coding the calendar screen - specifically, the 5x7 grid of days. I've first tried to code it using elements like Panels, Labels, and Buttons. I've decided that was too cumbersome. I've then decided to use GDI to draw the calendar myself. I now have a wonderful...
What would be the best way to save the window position and size in a WPF app? Currently, I'm saving the window size and position of a WPF App. Here are the events I handle: SourceInitialized : The saved info is loaded on to the window WindowClosing : The current info is saved to the backing store (I copied this from an example). Th...
I've decided to teach myself C# by writing a music player in Visual Studio 2010. I went with WPF because from what I hear it sounds like it will be a good base to skin from. I want to program my window with the behavior where if the window comes to the edge of a screen (within 10px or so) it will snap to the screen edge. What's the best...
What is a widely accepted naming convention for .NET/C#/WPF projects? ...
I have a ListView of which ItemSource is set to my Custom Collection. I have defined a GridView CellTemplate that contains a combo box as below : <ListView MaxWidth="850" Grid.Row="1" SelectedItem="{Binding Path = SelectedCondition}" ItemsSource="{Binding Path =...
Im creating a custom control. I have common code for WPF and XBAP application. I have some different calculation/work to do if it’s a XBAP application. How to detect whether it’s an xbap application or a WPF application? ...
Hi, There is something that I don't understand regarding ContentControl: I've a class that inherits from ContentControl, and it overrides the OnRender method. And although I don't call base.OnRender(drawingContext) still the content is being rendered... How come? What am I missing? Thanks, Eden ...
I've small trouble. I don't know why my controls firing events twice. I know it was discussed few times on stackOverflow, but still i cannot find out cause. Is there any way to debug application and find what is the main cause of raised event? I'm not good at (at this moment) profiling, but mayby it's the good path. Thx ...
I just noticed a strange behavior which looks like a bug. Consider the following XAML : <Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:sys="clr-namespace:System;assembly=mscorlib"> <Page.Resources> <x:Array x:Key="data" Type="{x:Type sys:St...
Hi Everyone, I need to bind two-way a property of a user control to a property of a containing user control. I also need to set a default value to the property from code in the child (cannot be done easily from XAML tags). If I call my code from the child constructor, the value is set in the parent but the change callback routine is no...
Hi, Are there any alternatives to Prism for UI composition (region management etc.)? Thank you. ...
First I will explain the context of the problem, because you might be able to point me in a better direction. I need to implement a undo-redo like system on an object. The object has a series of dependency properties. Some are double, int, string but some are also of DependencyObject type. I need to save the value of the property befor...