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c# - WPF UI Automation issue

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I am asking where do I need to insert the workaround from this

I have a WPF application which has performance issue on some clients with Windows 7. On Windows XP all is working fast. The application has a MainShell and some Child-Windows. The MainShell hangs sometimes on some machines, and so do the child windows. Now, do I have to insert the workaround from the thread from the above link in all windows? Are there still other workaround about this?

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I have been working on an application that has been fine on virtually everything but the WPF Controls were slow on certain laptops (Lenovo). It was lagging and freezing and generally inhibiting use.

I did the following:

  1. Implemented the code above: Improved it, but did not fix.
  2. Downloaded Hotfix - - http://archive.msdn.microsoft.com/KB978520 (may not be required)
  3. Downloaded Hotfix - - http://archive.msdn.microsoft.com/KB2484841 (definitely required even if you have Windows 7 / .NET 4)
  4. Improved the code further (the validation was causing an excess of objects) - Why does WPF Style to show validation errors in ToolTip work for a TextBox but fails for a ComboBox?

It may be that only Number 3 was required, but it worked. Just posting here so people dont lose the days I lost in memory profilers etc.


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