Our WPF started to hang when opening certain window, and debugging revealed an InvalidOperationException with this mysterious message. After some digging I found that we had code along the lines […]
Resource dictionaries in WPF are not shared, unless they are part of App.xaml. That is, if you have a user control that loads (and uses) some resource dictionary, new instance […]
In Visual Studio you can set “Build Action” for a project item to ‘Resource’ or ‘Embedded Resource’, among other things. The difference between the two is confusing, and exact up-to-date […]
ComboBox looks like a simple thing, but it’s surprisingly hard to get right. Today I bumped into another bug (or feature) of the WPF combo-box. I am recording it here, […]
If you marshal WPF windows between processes, or do any other cross-process remoting, you can get this error on an unpatched .NET Framework 4: Invalid type code in stream ‘Invalid’ […]
Surprise-surprise! WPF: The Image class enables you to load the following image types: .bmp, .gif, .ico, .jpg, .png, .wdp, and .tiff. Silverlight: [Image class] Represents a control that displays an […]
If your addiction to data binding in XAML goes as far as to use indexers, eventually you may end up using a string with space (or other special character) as […]
I spent some time today trying to understand why my control’s size and/or position would refuse to change. A statement like control.Width = 42; would have absolutely no effect: the […]
In WPF/Silverlight we are all accustomed to writing things like Width=”{Binding foo}” and Text=”{Binding bar}”. The little Binding gremlins then actually access foo or bar property of the current data […]
Continuing on a theme of bugs: just added an article about perils of cancelling combo box selection to the web site. Will post it to CodeProject soon. CodeProject
