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OnViewStyleChanged Method
See Also  Example
Leadtools.Windows.Controls Namespace > ImageList Class : OnViewStyleChanged Method



e
An RoutedPropertyChangedEventArgs that contains the event data.
Raises the ViewStyleChanged event.

Syntax

Visual Basic (Declaration) 
Protected Overridable Sub OnViewStyleChanged( _
   ByVal e As RoutedPropertyChangedEventArgs(Of ImageListViewStyle) _
)
Visual Basic (Usage)Copy Code
Dim instance As ImageList
Dim e As RoutedPropertyChangedEventArgs(Of ImageListViewStyle)
 
instance.OnViewStyleChanged(e)
C# 
protected virtual void OnViewStyleChanged( 
   RoutedPropertyChangedEventArgs<ImageListViewStyle> e
)
C++/CLI 
protected:
virtual void OnViewStyleChanged( 
   RoutedPropertyChangedEventArgs<ImageListViewStyle> e
)

Parameters

e
An RoutedPropertyChangedEventArgs that contains the event data.

Example

This example overrides the virtual events of the ImageList class.

Visual BasicCopy Code
Public Class MyImageList : Inherits ImageList
    '.
    '.
    '.
    Protected Overrides Sub OnImageSizeChanged(ByVal e As RoutedPropertyChangedEventArgs(Of Size))
        MyBase.OnImageSizeChanged(e)
        Console.WriteLine("OnImageSizeChanged is called")
    End Sub
    Protected Overrides Sub OnItemBorderBrushChanged(ByVal e As RoutedPropertyChangedEventArgs(Of Brush))
        MyBase.OnItemBorderBrushChanged(e)
        Console.WriteLine("OnItemBorderBrushChanged is called")
    End Sub

    Protected Overrides Sub OnItemBorderThicknessChanged(ByVal e As RoutedPropertyChangedEventArgs(Of Thickness))
        MyBase.OnItemBorderThicknessChanged(e)
        Console.WriteLine("OnItemBorderThicknessChanged is called")
    End Sub

    Protected Overrides Sub OnItemSelectedBackgroundChanged(ByVal e As RoutedPropertyChangedEventArgs(Of Brush))
        MyBase.OnItemSelectedBackgroundChanged(e)
        Console.WriteLine("OnItemSelectedBackgroundChanged is called")
    End Sub

    Protected Overrides Sub OnItemSelectedForegroundChanged(ByVal e As RoutedPropertyChangedEventArgs(Of Brush))
        MyBase.OnItemSelectedForegroundChanged(e)
        Console.WriteLine("OnItemSelectedForegroundChanged is called")
    End Sub

    Protected Overrides Sub OnItemSizeChanged(ByVal e As RoutedPropertyChangedEventArgs(Of Size))
        MyBase.OnItemSizeChanged(e)
        Console.WriteLine("OnItemSizeChanged is called")
    End Sub

    Protected Overrides Sub OnScrollStyleChanged(ByVal e As RoutedPropertyChangedEventArgs(Of ImageListScrollStyle))
        MyBase.OnScrollStyleChanged(e)
        Console.WriteLine("OnScrollStyleChanged is called")
    End Sub

    Protected Overrides Sub OnViewStyleChanged(ByVal e As RoutedPropertyChangedEventArgs(Of ImageListViewStyle))
        MyBase.OnViewStyleChanged(e)
        Console.WriteLine("OnViewStyleChanged is called")
    End Sub

    Protected Overrides Sub OnShowTextChanged(ByVal e As RoutedPropertyChangedEventArgs(Of Boolean))
        MyBase.OnShowTextChanged(e)
        Console.WriteLine("OnShowTextChanged is called")
    End Sub

    Protected Overrides Sub OnItemBackgroundChanged(ByVal e As RoutedPropertyChangedEventArgs(Of Brush))
        MyBase.OnItemBackgroundChanged(e)
        Console.WriteLine("OnItemBackgroundChanged is called")
    End Sub

    Protected Overrides Sub OnItemForegroundChanged(ByVal e As RoutedPropertyChangedEventArgs(Of Brush))
        MyBase.OnItemForegroundChanged(e)
        Console.WriteLine("OnItemForegroundChanged is called")
    End Sub

    Protected Overrides Sub OnItemMarginChanged(ByVal e As RoutedPropertyChangedEventArgs(Of Thickness))
        MyBase.OnItemMarginChanged(e)
        Console.WriteLine("OnItemMarginChanged is called")
    End Sub
C#Copy Code
public class MyImageList : ImageList 
{ 
   //. 
   //. 
   //. 
   protected override void OnImageSizeChanged(RoutedPropertyChangedEventArgs<Size> e) 
   { 
      base.OnImageSizeChanged(e); 
      Console.WriteLine("OnImageSizeChanged is called"); 
   } 
   protected override void OnItemBorderBrushChanged(RoutedPropertyChangedEventArgs<Brush> e) 
   { 
      base.OnItemBorderBrushChanged(e); 
      Console.WriteLine("OnItemBorderBrushChanged is called"); 
   } 
 
   protected override void OnItemBorderThicknessChanged(RoutedPropertyChangedEventArgs<Thickness> e) 
   { 
      base.OnItemBorderThicknessChanged(e); 
      Console.WriteLine("OnItemBorderThicknessChanged is called"); 
   } 
 
   protected override void OnItemSelectedBackgroundChanged(RoutedPropertyChangedEventArgs<Brush> e) 
   { 
      base.OnItemSelectedBackgroundChanged(e); 
      Console.WriteLine("OnItemSelectedBackgroundChanged is called"); 
   } 
 
   protected override void OnItemSelectedForegroundChanged(RoutedPropertyChangedEventArgs<Brush> e) 
   { 
      base.OnItemSelectedForegroundChanged(e); 
      Console.WriteLine("OnItemSelectedForegroundChanged is called"); 
   } 
 
   protected override void OnItemSizeChanged(RoutedPropertyChangedEventArgs<Size> e) 
   { 
      base.OnItemSizeChanged(e); 
      Console.WriteLine("OnItemSizeChanged is called"); 
   } 
 
   protected override void OnScrollStyleChanged(RoutedPropertyChangedEventArgs<ImageListScrollStyle> e) 
   { 
      base.OnScrollStyleChanged(e); 
      Console.WriteLine("OnScrollStyleChanged is called"); 
   } 
 
   protected override void OnViewStyleChanged(RoutedPropertyChangedEventArgs<ImageListViewStyle> e) 
   { 
      base.OnViewStyleChanged(e); 
      Console.WriteLine("OnViewStyleChanged is called"); 
   } 
 
   protected override void OnShowTextChanged(RoutedPropertyChangedEventArgs<bool> e) 
   { 
      base.OnShowTextChanged(e); 
      Console.WriteLine("OnShowTextChanged is called"); 
   } 
 
   protected override void OnItemBackgroundChanged(RoutedPropertyChangedEventArgs<Brush> e) 
   { 
      base.OnItemBackgroundChanged(e); 
      Console.WriteLine("OnItemBackgroundChanged is called"); 
   } 
 
   protected override void OnItemForegroundChanged(RoutedPropertyChangedEventArgs<Brush> e) 
   { 
      base.OnItemForegroundChanged(e); 
      Console.WriteLine("OnItemForegroundChanged is called"); 
   } 
 
   protected override void OnItemMarginChanged(RoutedPropertyChangedEventArgs<Thickness> e) 
   { 
      base.OnItemMarginChanged(e); 
      Console.WriteLine("OnItemMarginChanged is called"); 
   }

Remarks

Raising an event invokes the event handler through a delegate.

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

Requirements

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Vista, and Windows Server 2003 family

See Also