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TransformGroup Class

Represents a composite Transform composed of other Transform objects.

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

[ContentPropertyAttribute("Children", true)]
public sealed class TransformGroup : Transform
<TransformGroup>
  oneOrMoreTransforms
</TransformGroup>

XAML Values

oneOrMoreTransforms

One or more object elements for classes that derive from Transform. Typically these are the Silverlight defined classes RotateTransform, ScaleTransform, SkewTransform, TranslateTransform, MatrixTransform, or TransformGroup. Object elements defined here become members of the TransformCollection collection when code accesses the Children property at run time.

The TransformGroup type exposes the following members.

  NameDescription
Public methodSupported by Silverlight for Windows PhoneTransformGroupInitializes a new instance of the TransformGroup class.
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  NameDescription
Public propertySupported by Silverlight for Windows PhoneChildrenGets or sets the collection of child Transform objects.
Public propertySupported by Silverlight for Windows PhoneDispatcherGets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
Public propertySupported by Silverlight for Windows PhoneInverseGets the inverse of this transform, if it exists. (Inherited from Transform.)
Public propertySupported by Silverlight for Windows PhoneValueGets the Matrix structure that describes the transformation represented by this TransformGroup.
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  NameDescription
Public methodSupported by Silverlight for Windows PhoneCheckAccessDetermines whether the calling thread has access to this object. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows PhoneClearValueClears the local value of a dependency property. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows PhoneEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows PhoneFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneGetAnimationBaseValueReturns any base value established for a Silverlight dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows PhoneGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneGetValueReturns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
Protected methodSupported by Silverlight for Windows PhoneMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneReadLocalValueReturns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows PhoneSetValueSets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
Public methodSupported by Silverlight for Windows PhoneToStringReturns a string that represents the current object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneTransformTransforms the specified point and returns the result. (Inherited from GeneralTransform.)
Public methodSupported by Silverlight for Windows PhoneTransformBoundsTransforms the specified bounding box and returns an axis-aligned bounding box that is exactly large enough to contain it. (Inherited from Transform.)
Public methodSupported by Silverlight for Windows PhoneTryTransformAttempts to transform the specified point and returns a value that indicates whether the transformation was successful. (Inherited from Transform.)
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  NameDescription
Public fieldStatic memberSupported by Silverlight for Windows PhoneChildrenPropertyIdentifies the Children dependency property.
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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.

Run this sample


<StackPanel>
  <TextBlock FontSize="28" Text="Hello">
    <TextBlock.RenderTransform>
      <TransformGroup>
        <RotateTransform Angle="45" />
        <SkewTransform CenterX="0" CenterY="0" AngleX="60"/>
      </TransformGroup>
    </TextBlock.RenderTransform>
  </TextBlock>
</StackPanel>


Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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