OnItemSelectedBackColorChanged Method

Summary

Raises the ItemSelectedBackColorChanged event.

Syntax

C#
C++/CLI
C++
protected virtual void OnItemSelectedBackColorChanged( 
   EventArgs e 
) 
protected: 
virtual void OnItemSelectedBackColorChanged(  
   EventArgs^ e 
)  
protected:  
   virtual void OnItemSelectedBackColorChanged( 
      EventArgs^ e 
   ) 

Parameters

e
An System.EventArgs that contains the event data.

Remarks

Raising an event invokes the event handler through a delegate.

The OnItemSelectedBackColorChanged 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 OnItemSelectedBackColorChanged in a derived class, be sure to call the base class's OnItemSelectedBackColorChanged method so that registered delegates receive the event.

Example

This example overrides the virtual events of the RasterImageList class.

C#
using Leadtools.WinForms; 
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
 
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"); 
   } 
} 

Requirements

Target Platforms

See Also

Reference

RasterImageList Class

RasterImageList Members

Help Version 22.0.2023.1.24
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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.