TransformGroup Class
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Represents a composite Transform composed of other Transform objects.
System.Windows::DependencyObject
System.Windows.Media::GeneralTransform
System.Windows.Media::Transform
System.Windows.Media::TransformGroup
Assembly: System.Windows (in System.Windows.dll)
XMLNS for XAML: Not mapped to an xmlns.
The TransformGroup type exposes the following members.
| Name | Description | |
|---|---|---|
 | Children | Gets or sets the collection of child Transform objects. |
| Dispatcher | Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.) |
| Inverse | Gets the inverse of this transform, if it exists. (Inherited from Transform.) |
| Value | Gets the Matrix structure that describes the transformation represented by this TransformGroup. |
| Name | Description | |
|---|---|---|
 | CheckAccess | Determines whether the calling thread has access to this object. (Inherited from DependencyObject.) |
| ClearValue | Clears the local value of a dependency property. (Inherited from DependencyObject.) |
| Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
| GetAnimationBaseValue | Returns any base value established for a Windows Phone dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| GetValue | Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ReadLocalValue | Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.) |
| SetValue | Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
| Transform | Transforms the specified point and returns the result. (Inherited from GeneralTransform.) |
| TransformBounds | Transforms the specified bounding box and returns an axis-aligned bounding box that is exactly large enough to contain it. (Inherited from Transform.) |
| TryTransform | Attempts to transform the specified point and returns a value that indicates whether the transformation was successful. (Inherited from Transform.) |
Use a TransformGroup when you want to apply multiple Transform operations to a single object.
In a composite transformation, the order of individual transformations is important. For example, if you first rotate, then scale, then translate, you get a different result than if you first translate, then rotate, then scale. One reason order is significant is that transformations like rotation and scaling are done with respect to the origin of the coordinate system. Scaling an object that is centered at the origin produces a different result than scaling an object that has been moved away from the origin. Similarly, rotating an object that is centered at the origin produces a different result than rotating an object that has been moved away from the origin.
In XAML usages, TransformGroup uses Children as its content property and supports implicit collection usage. Therefore, to declare transforms that will be in a TransformGroup in XAML, you declare one or more transforms as object elements, placing them in order as the child elements of the TransformGroup. Nesting more than one TransformGroup is permitted.
The following example shows the markup for using a TransformGroup to fill the RenderTransform property.
<StackPanel> <TextBlock FontSize="28" Text="Hello"> <TextBlock.RenderTransform> <TransformGroup> <RotateTransform Angle="45" /> <SkewTransform CenterX="0" CenterY="0" AngleX="60"/> </TransformGroup> </TextBlock.RenderTransform> </TextBlock> </StackPanel>