This member is available in the WPF Express Edition. See the LEADTOOLS products page for full details on more WPF features available with LEADTOOLS toolkits.
Occurs when the value of the
SizeMode property changes.
Syntax
XAML Attributes Usage | |
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<object SizeModeChanged=EventHandler<ExceptionRoutedEventArgs>/> ... |
Routed Event Information | |
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Identifier field | SizeModeChangedEvent |
Routing strategy | Bubbling |
Delegate | EventHandler<(Of <(TEventArgs>)>) |
Example
This example uses the SizeModeChanged event to show how the SizeMode has changed.
Visual Basic | Copy Code |
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Private Sub viewer_SizeModeChanged(ByVal sender As Object, ByVal e As RoutedPropertyChangedEventArgs(Of PaintSizeMode))
Dim viewer As BitmapSourceViewer = CType(IIf(TypeOf sender Is BitmapSourceViewer, sender, Nothing), BitmapSourceViewer)
Dim s As String = String.Format("SizeModeChanged Event: {0}", viewer.SizeMode.ToString())
MessageBox.Show(s)
End Sub
Public Sub BitmapSourceViewerElement_SizeModeChanged(ByVal viewer As BitmapSourceViewerElement)
AddHandler viewer.SizeModeChanged, AddressOf viewer_SizeModeChanged
Select Case viewer.SizeMode
Case PaintSizeMode.Fit
viewer.SizeMode = PaintSizeMode.FitAlways
Case PaintSizeMode.FitAlways
viewer.SizeMode = PaintSizeMode.FitWidth
Case PaintSizeMode.FitWidth
viewer.SizeMode = PaintSizeMode.Normal
Case PaintSizeMode.Normal
viewer.SizeMode = PaintSizeMode.Stretch
Case PaintSizeMode.Stretch
viewer.SizeMode = PaintSizeMode.Fit
End Select
RemoveHandler viewer.SizeModeChanged, AddressOf viewer_SizeModeChanged
End Sub |
C# | Copy Code |
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private void viewer_SizeModeChanged(object sender, EventArgs e) { BitmapSourceViewerElement viewer = sender as BitmapSourceViewerElement; string s = string.Format("SizeModeChanged Event: {0}", viewer.SizeMode.ToString()); MessageBox.Show(s); } public void BitmapSourceViewerElement_SizeModeChanged(BitmapSourceViewerElement viewer) { viewer.SizeModeChanged += new RoutedPropertyChangedEventHandler<PaintSizeMode>(viewer_SizeModeChanged); switch(viewer.SizeMode) { case PaintSizeMode.Fit: viewer.SizeMode = PaintSizeMode.FitAlways; break; case PaintSizeMode.FitAlways: viewer.SizeMode = PaintSizeMode.FitWidth; break; case PaintSizeMode.FitWidth: viewer.SizeMode = PaintSizeMode.Normal; break; case PaintSizeMode.Normal: viewer.SizeMode = PaintSizeMode.Stretch; break; case PaintSizeMode.Stretch: viewer.SizeMode = PaintSizeMode.Fit; break; } viewer.SizeModeChanged -= new RoutedPropertyChangedEventHandler<PaintSizeMode>(viewer_SizeModeChanged); } |
XAML | Copy Code |
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<Window x:Class="WPFSamples.BitmapSourceViewerElement" Height="600" Width="800" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:Leadtools_Windows_Controls="clr-namespace:Leadtools.Windows.Controls;assembly=Leadtools.Windows.Controls"> <DockPanel> <Leadtools_Windows_Controls:BitmapSourceViewerElement Name="theImage" Source="file:///C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\slave.jpg" DockPanel.Dock="Bottom" HorizontalAlignment="Center" VerticalAlignment="Bottom" MouseDown="theImage_MouseClick" SizeModeChanged="viewer_SizeModeChanged"></Leadtools_Windows_Controls:BitmapSourceViewerElement> </DockPanel> <Window.Title> "Size mode =Normal, double click to change" </Window.Title> </Window> |
Remarks
Requirements
Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Vista, and Windows Server 2003 family
See Also