Visual Basic (Declaration) | |
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Public Overridable Sub BeginUpdate() |
Visual Basic (Usage) | ![]() |
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Dim instance As ImageBox instance.BeginUpdate() |
C# | |
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public virtual void BeginUpdate() |
C++/CLI | |
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public: virtual void BeginUpdate(); |
For C#/VB examples, refer to Flip.
The BeginUpdate method will cause the control not to call the System.Windows.UIElement.InvalidateMeasure method when any changes to the control properties or the image is applied. When the user calls the EndUpdate method, the viewer will call System.Windows.UIElement.InvalidateMeasure to show all the changes made. This is useful for better visual results and for speed efficiency.
Calls to BeginUpdate and EndUpdate are accumulative, you can call BeginUpdate as many times as you want and you must call the EndUpdate equivalant times to cause the update to happen.
Target Platforms: Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family