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Exception from WindowPopupWindowImpl.Move(...)

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Sergey Karpov
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Sergey Karpov asked on 23 Feb 2010, 05:09 PM

Hi,

Attempt to set .Left and .Top property on RadWindow produces exception.

I’m trying to open modal RadWindow at the specific location on screen. The WindowStartupLocation is set to “Manual”.  The code runs like this :

 

windowAdjustment.Left = _rightClickPoint.X;

windowAdjustment.Top = _rightClickPoint.Y;

windowAdjustment.ShowDialog();

 

It works perfectly the first time. But setting .Left property the second time causes exception “{“Object reference not set to an instance of an object"}            System.Exception {System.NullReferenceException}”

The top of the stack trace :

 

at Telerik.Windows.Controls.RadWindowPopup.WindowPopupWindowFactory.WindowPopupWindowImpl.Move(Double left, Double top) in c:\Builds\...\Navigation\Window\WindowPopup\WindowPopupWindowImpl.cs:line 39

   at Telerik.Windows.Controls.RadWindow.Move(Double x, Double y) in c:\Builds\...\Navigation\Window\RadWindow.cs:line 2028

   at Telerik.Windows.Controls.RadWindow.OnLeftChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) in c:\Builds\...\Navigation\Window\RadWindow.cs:line 1713

 

Any ideas anyone ?

 

Regards,

Sergey

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Miroslav Nedyalkov
Telerik team
answered on 24 Feb 2010, 07:56 AM
Hi Sergey,

 Unfortunately this is an issue in the implementation of the RadWindow control for WPF desktop application. The problem will be fixed for the Q1 released. For now I could suggest you to create new window instead of reusing the old one. Hope this is good for you. If not, please let us know.

Best wishes,
Miroslav Nedyalkov
the Telerik team

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Sergey Karpov
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Miroslav Nedyalkov
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