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OK, I have read this following in the help document:
Certain control classes (for example Button) provide control-specific handling for mouse events such as MouseLeftButtonDown. The control-specific handling typically involves handling the event at a class level rather than at the instance level, and marking the MouseLeftButtonDown ...
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And I have found another bug is...Button don't trigger MouseLeftButtonDown\Up in Beta2...faint...
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OK I have solved it... use BitampImage as the Source...
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I always wrote c# codes as follow in beta1:
image_XXX. SetValue( Image. SourceProperty , "xxx/xxx.jpg");
But in beta2, it will throw an exception: A first chance exception of type 'System.ArgumentException' occurred in System.Windows.dll.
And now I have no way to set a URI source for my ...
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mchlSync,
I'm sorry for my poor expression...what I mean is the exception occurs when there is no operation for my Dictionary, which puzzles me so much. :)
jjy2,
Great, I'm just having many framework elements that move around in my project( with frequent ...
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A first chance exception of type 'System.Collections.Generic.KeyNotFoundException' occurred in mscorlib.dll
Additional information: The given key was not present in the dictionary.
I met this strange exception when I using SL2B1 with C#, and anyway I can't catch it by ...
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thx so much... then I have the determination to take another way to avoid this...
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You can set or get the value of MediaElement.Source and Image.Source Property , that's easy, just have a try
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Add a TextBox control into a Canvas's Children, then focus it( by your mouse or Tab or Focus() function ) , then remove the TextBox from the Canvas's Children, and again add the TextBox into the Canvas's Children... Then the TextBox will give no reaction to any mouse event...
Is it an exception?
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Try to use a storyboard whose duration is one minute, you can let the media begin when the storyboard is completed