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Gets or sets a graphics transformation that should apply to this element when layout is performed.

Namespace:   System.Windows
Assembly:  PresentationFramework (in PresentationFramework.dll)

Syntax
public Transform LayoutTransform { get; set; }
public:
property Transform^ LayoutTransform {
	Transform^ get();
	void set(Transform^ value);
}
member LayoutTransform : Transform with get, set
Public Property LayoutTransform As Transform

Property Value

Type:

The transform this element should use. The default is .

Remarks

In contrast to , will affect results of layout.

Setting a transform provides powerful capabilities of scaling and rotating. However, ignores TranslateTransform operations. This is because the layout system behavior for child elements of a FrameworkElement auto-corrects any offsets to the position of a scaled or rotated element into the layout and coordinate system of the parent element.

can lead to poor application performance if you invoke it in a scenario that does not require a full pass by the layout system. When you apply a to the collection of the Panel, it triggers a new pass by the layout system and forces all on-screen objects to be remeasured and rearranged. If you are updating the complete application user interface (UI), this functionality might be exactly what you need. However, if you do not need a full layout pass, use the property, which does not invoke the layout system, and therefore, is typically a better choice for this scenario.

Example scenarios where would be useful include: rotating elements such as menu components from horizontal to vertical or vice versa, scaling elements (zooming in) on focus, providing editing behavior, etc.

Dependency Property Information

Identifier field

LayoutTransformProperty

Metadata properties set to true

Examples

The following example shows how to apply a to an element. The example creates an instance of Button and hosts it within a parent Grid. It also uses the property to apply a RotateTransform to the Button.


Button btn2 = new Button();
btn2.Background = Brushes.LightCoral;
btn2.Content = "RotateTransform";
btn2.LayoutTransform = new RotateTransform(45, 25, 25);
Grid.SetRow(btn2, 0);
Grid.SetColumn(btn2, 1);
grid1.Children.Add(btn2);

Dim btn2 As New Button()
btn2.Background = Brushes.LightCoral
btn2.Content = "RotateTransform"
btn2.LayoutTransform = New RotateTransform(45, 25, 25)
Grid.SetRow(btn2, 0)
Grid.SetColumn(btn2, 1)
grid1.Children.Add(btn2)

Button^ btn2 = gcnew Button();
btn2->Background = Brushes::LightCoral;
btn2->Content = "RotateTransform";
btn2->LayoutTransform = gcnew RotateTransform(45, 25, 25);
Grid::SetRow(btn2, 0);
Grid::SetColumn(btn2, 1);
grid1->Children->Add(btn2);

<Button Grid.Row="0" Grid.Column="1" Background="LightCoral" Content="RotateTransform Applied">
  <Button.LayoutTransform>
    <RotateTransform CenterX="25" CenterY="25" Angle="45" />
  </Button.LayoutTransform>
</Button>
Version Information
.NET Framework
Available since 3.0
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