| Name | Description | |
|---|---|---|
  | C1IndexOf | --- SL2 BUG --- ItemsControl doesn't use Equals for comparison (ItemCollection.IndexOf) |
| C1TransformToVisual | Returns a transform object that can be used to transform coordinates from the System.Windows.UIElement to the specified object. |
| Contains | Determines if the one rectangular region is entirely contained within another structure. |
| ContainsAny<T> | Determines whether the specified list contains any of the following values. |
| Deflate | Deflates a System.Windows.Rect structure by specified amount. |
| Distance | Returns the distance between the two points |
| FindParent<T> | Finds the first parent of a given type for a particular FrameworkElement |
| GetAbsoluteUri | Returns the absolute System.Uri from a string that may represent relative or absolute Uri. |
| GetAllParents | Returns all the parents in the visual tree |
| GetVisualStateGroup | Gets the VisualStateGroup with the given name, looking up the visual tree |
| Inflate | Overloaded. Enlarges a System.Windows.Rect structure by the specified amount. |
| IntersectsWith | Determines if this rectangle intersects with rect. |
| MakeRelative | Overloaded. Makes the popup relative to another System.Windows.FrameworkElement. |
| SetBinding | Overloaded. Sets the binding if the dependency property has not been set previously and the style of the element don't set the property. |