- e
- An System.EventArgs that contains the event data.
Visual Basic (Declaration) | |
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Protected Overridable Sub OnItemSelectedForeColorChanged( _ ByVal e As EventArgs _ ) |
Visual Basic (Usage) | ![]() |
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Dim instance As RasterImageList Dim e As EventArgs instance.OnItemSelectedForeColorChanged(e) |
C++/CLI | |
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protected: virtual void OnItemSelectedForeColorChanged( EventArgs^ e ) |
Parameters
- e
- An System.EventArgs that contains the event data.
This example overrides the virtual events of the RasterImageList class.
Visual Basic | ![]() |
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Public Class MyRasterImageList Inherits RasterImageList '. '. '. Protected Overrides Sub OnAutoDeselectItemsChanged(ByVal e As EventArgs) MyBase.OnAutoDeselectItemsChanged(e) Console.WriteLine("OnAutoDeselectItemsChanged is called") End Sub Protected Overrides Sub OnAutoDisposeImagesChanged(ByVal e As EventArgs) MyBase.OnAutoDisposeImagesChanged(e) Console.WriteLine("OnAutoDisposeImagesChanged is called") End Sub Protected Overrides Sub OnBorderStyleChanged(ByVal e As EventArgs) MyBase.OnBorderStyleChanged(e) Console.WriteLine("OnBorderStyleChanged is called") End Sub Protected Overrides Sub OnDoubleBufferChanged(ByVal e As EventArgs) MyBase.OnDoubleBufferChanged(e) Console.WriteLine("OnDoubleBufferChanged is called") End Sub Protected Overrides Sub OnDrawItem(ByVal e As RasterImageListDrawItemEventArgs) MyBase.OnDrawItem(e) Console.WriteLine("OnDrawItem is called") End Sub Protected Overrides Sub OnEnableKeyboardChanged(ByVal e As EventArgs) MyBase.OnEnableKeyboardChanged(e) Console.WriteLine("OnEnableKeyboardChanged is called") End Sub Protected Overrides Sub OnEnableRubberBandSelectionChanged(ByVal e As EventArgs) MyBase.OnEnableRubberBandSelectionChanged(e) Console.WriteLine("OnEnableRubberBandSelectionChanged is called") End Sub Protected Overrides Sub OnItemBackColorChanged(ByVal e As EventArgs) MyBase.OnItemBackColorChanged(e) Console.WriteLine("OnItemBackColorChanged is called") End Sub Protected Overrides Sub OnItemBorderStyleChanged(ByVal e As EventArgs) MyBase.OnItemBorderStyleChanged(e) Console.WriteLine("OnItemBorderStyleChanged is called") End Sub Protected Overrides Sub OnItemForeColorChanged(ByVal e As EventArgs) MyBase.OnItemForeColorChanged(e) Console.WriteLine("OnItemForeColorChanged is called") End Sub Protected Overrides Sub OnItemImageBorderStyleChanged(ByVal e As EventArgs) MyBase.OnItemImageBorderStyleChanged(e) Console.WriteLine("OnItemImageBorderStyleChanged is called") End Sub Protected Overrides Sub OnItemImageSizeChanged(ByVal e As EventArgs) MyBase.OnItemImageSizeChanged(e) Console.WriteLine("OnItemImageSizeChanged is called") End Sub Protected Overrides Sub OnItemSelectedBackColorChanged(ByVal e As EventArgs) MyBase.OnItemSelectedBackColorChanged(e) Console.WriteLine("OnItemSelectedBackColorChanged is called") End Sub Protected Overrides Sub OnItemSelectedForeColorChanged(ByVal e As EventArgs) MyBase.OnItemSelectedForeColorChanged(e) Console.WriteLine("OnItemSelectedForeColorChanged is called") End Sub Protected Overrides Sub OnItemSizeChanged(ByVal e As EventArgs) MyBase.OnItemSizeChanged(e) Console.WriteLine("OnItemSizeChanged is called") End Sub Protected Overrides Sub OnItemSpacingSizeChanged(ByVal e As EventArgs) MyBase.OnItemSpacingSizeChanged(e) Console.WriteLine("OnItemSpacingSizeChanged is called") End Sub Protected Overrides Sub OnKeyDown(ByVal e As KeyEventArgs) MyBase.OnKeyDown(e) Console.WriteLine("OnKeyDown is called") End Sub Protected Overrides Sub OnLostFocus(ByVal e As EventArgs) MyBase.OnLostFocus(e) Console.WriteLine("OnLostFocus is called") End Sub Protected Overrides Sub OnMouseDown(ByVal e As MouseEventArgs) MyBase.OnMouseDown(e) Console.WriteLine("OnMouseDown is called") End Sub Protected Overrides Sub OnMouseMove(ByVal e As MouseEventArgs) MyBase.OnMouseMove(e) Console.WriteLine("OnMouseMove is called") End Sub Protected Overrides Sub OnMouseUp(ByVal e As MouseEventArgs) MyBase.OnMouseUp(e) Console.WriteLine("OnMouseUp is called") End Sub Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs) MyBase.OnPaint(e) Console.WriteLine("OnPaint is called") End Sub Protected Overrides Sub OnPaintPropertiesChanged(ByVal e As EventArgs) MyBase.OnPaintPropertiesChanged(e) Console.WriteLine("OnPaintPropertiesChanged is called") End Sub Protected Overrides Sub OnScroll(ByVal e As EventArgs) MyBase.OnScroll(e) Console.WriteLine("OnScroll is called") End Sub Protected Overrides Sub OnScrollStyleChanged(ByVal e As EventArgs) MyBase.OnScrollStyleChanged(e) Console.WriteLine("OnScrollStyleChanged is called") End Sub Protected Overrides Sub OnSelectedIndexChanged(ByVal e As EventArgs) MyBase.OnSelectedIndexChanged(e) Console.WriteLine("OnSelectedIndexChanged is called") End Sub Protected Overrides Sub OnSelectionModeChanged(ByVal e As EventArgs) MyBase.OnSelectionModeChanged(e) Console.WriteLine("OnSelectionModeChanged is called") End Sub Protected Overrides Sub OnSelectUserImageChanged(ByVal e As EventArgs) MyBase.OnSelectUserImageChanged(e) Console.WriteLine("OnSelectUserImageChanged is called") End Sub Protected Overrides Sub OnShowItemTextChanged(ByVal e As EventArgs) MyBase.OnShowItemTextChanged(e) Console.WriteLine("OnShowItemTextChanged is called") End Sub Protected Overrides Sub OnSizeChanged(ByVal e As EventArgs) MyBase.OnSizeChanged(e) Console.WriteLine("OnSizeChanged is called") End Sub Protected Overrides Sub OnSorterChanged(ByVal e As EventArgs) MyBase.OnSorterChanged(e) Console.WriteLine("OnSorterChanged is called") End Sub Protected Overrides Sub OnSortingChanged(ByVal e As EventArgs) MyBase.OnSortingChanged(e) Console.WriteLine("OnSortingChanged is called") End Sub Protected Overrides Sub OnViewStyleChanged(ByVal e As EventArgs) MyBase.OnViewStyleChanged(e) Console.WriteLine("OnViewStyleChanged is called") End Sub End Class |
C# | ![]() |
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public class MyRasterImageList : RasterImageList { //. //. //. protected override void OnAutoDeselectItemsChanged(EventArgs e) { base.OnAutoDeselectItemsChanged(e); Console.WriteLine("OnAutoDeselectItemsChanged is called"); } protected override void OnAutoDisposeImagesChanged(EventArgs e) { base.OnAutoDisposeImagesChanged(e); Console.WriteLine("OnAutoDisposeImagesChanged is called"); } protected override void OnBorderStyleChanged(EventArgs e) { base.OnBorderStyleChanged(e); Console.WriteLine("OnBorderStyleChanged is called"); } protected override void OnDoubleBufferChanged(EventArgs e) { base.OnDoubleBufferChanged(e); Console.WriteLine("OnDoubleBufferChanged is called"); } protected override void OnDrawItem(RasterImageListDrawItemEventArgs e) { base.OnDrawItem(e); Console.WriteLine("OnDrawItem is called"); } protected override void OnEnableKeyboardChanged(EventArgs e) { base.OnEnableKeyboardChanged(e); Console.WriteLine("OnEnableKeyboardChanged is called"); } protected override void OnEnableRubberBandSelectionChanged(EventArgs e) { base.OnEnableRubberBandSelectionChanged(e); Console.WriteLine("OnEnableRubberBandSelectionChanged is called"); } protected override void OnItemBackColorChanged(EventArgs e) { base.OnItemBackColorChanged(e); Console.WriteLine("OnItemBackColorChanged is called"); } protected override void OnItemBorderStyleChanged(EventArgs e) { base.OnItemBorderStyleChanged(e); Console.WriteLine("OnItemBorderStyleChanged is called"); } protected override void OnItemForeColorChanged(EventArgs e) { base.OnItemForeColorChanged(e); Console.WriteLine("OnItemForeColorChanged is called"); } protected override void OnItemImageBorderStyleChanged(EventArgs e) { base.OnItemImageBorderStyleChanged(e); Console.WriteLine("OnItemImageBorderStyleChanged is called"); } protected override void OnItemImageSizeChanged(EventArgs e) { base.OnItemImageSizeChanged(e); Console.WriteLine("OnItemImageSizeChanged is called"); } protected override void OnItemSelectedBackColorChanged(EventArgs e) { base.OnItemSelectedBackColorChanged(e); Console.WriteLine("OnItemSelectedBackColorChanged is called"); } protected override void OnItemSelectedForeColorChanged(EventArgs e) { base.OnItemSelectedForeColorChanged(e); Console.WriteLine("OnItemSelectedForeColorChanged is called"); } protected override void OnItemSizeChanged(EventArgs e) { base.OnItemSizeChanged(e); Console.WriteLine("OnItemSizeChanged is called"); } protected override void OnItemSpacingSizeChanged(EventArgs e) { base.OnItemSpacingSizeChanged(e); Console.WriteLine("OnItemSpacingSizeChanged is called"); } protected override void OnKeyDown(KeyEventArgs e) { base.OnKeyDown(e); Console.WriteLine("OnKeyDown is called"); } protected override void OnLostFocus(EventArgs e) { base.OnLostFocus(e); Console.WriteLine("OnLostFocus is called"); } protected override void OnMouseDown(MouseEventArgs e) { base.OnMouseDown(e); Console.WriteLine("OnMouseDown is called"); } protected override void OnMouseMove(MouseEventArgs e) { base.OnMouseMove(e); Console.WriteLine("OnMouseMove is called"); } protected override void OnMouseUp(MouseEventArgs e) { base.OnMouseUp(e); Console.WriteLine("OnMouseUp is called"); } protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); Console.WriteLine("OnPaint is called"); } protected override void OnPaintPropertiesChanged(EventArgs e) { base.OnPaintPropertiesChanged(e); Console.WriteLine("OnPaintPropertiesChanged is called"); } protected override void OnScroll(EventArgs e) { base.OnScroll(e); Console.WriteLine("OnScroll is called"); } protected override void OnScrollStyleChanged(EventArgs e) { base.OnScrollStyleChanged(e); Console.WriteLine("OnScrollStyleChanged is called"); } protected override void OnSelectedIndexChanged(EventArgs e) { base.OnSelectedIndexChanged(e); Console.WriteLine("OnSelectedIndexChanged is called"); } protected override void OnSelectionModeChanged(EventArgs e) { base.OnSelectionModeChanged(e); Console.WriteLine("OnSelectionModeChanged is called"); } protected override void OnSelectUserImageChanged(EventArgs e) { base.OnSelectUserImageChanged(e); Console.WriteLine("OnSelectUserImageChanged is called"); } protected override void OnShowItemTextChanged(EventArgs e) { base.OnShowItemTextChanged(e); Console.WriteLine("OnShowItemTextChanged is called"); } protected override void OnSizeChanged(EventArgs e) { base.OnSizeChanged(e); Console.WriteLine("OnSizeChanged is called"); } protected override void OnSorterChanged(EventArgs e) { base.OnSorterChanged(e); Console.WriteLine("OnSorterChanged is called"); } protected override void OnSortingChanged(EventArgs e) { base.OnSortingChanged(e); Console.WriteLine("OnSortingChanged is called"); } protected override void OnViewStyleChanged(EventArgs e) { base.OnViewStyleChanged(e); Console.WriteLine("OnViewStyleChanged is called"); } } |
Raising an event invokes the event handler through a delegate.
The OnItemSelectedForeColorChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors: When overriding OnItemSelectedForeColorChanged in a derived class, be sure to call the base class's OnItemSelectedForeColorChanged method so that registered delegates receive the event.
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7