Thank Erel for your reply.
We have .Net Framework 3.5 installed in our system. Any idea where is this manifest file is located in the system where we can change it to point to .Net Framework 4.0.
Cheers,
Desmond
I also noticed something.
A) Form control:
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1) KeyDown for "Tab", "Enter", "Up", "Down", "Left", "Right" cannot work.
2) There is no PreviewKeyDownHandler Event.
B) Button control:
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1) KeyDown for "Tab", "Enter", "Up", "Down", "Left", "Right" cannot work.
2) There is no PreviewKeyDownHandler Event.
C) TextBox control:
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1) KeyDown for "Tab", "Enter", "Up", "Down", "Left", "Right" works.
2) There is no PreviewKeyDownHandler Event.
D) Num control:
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1) KeyDown for "Tab", "Enter", "Up", "Down", "Left", "Right" cannot work.