Popup.CreateRootPopup(Popup, UIElement) Method

Definition

Namespace:

System.Windows.Controls.Primitives

Assembly:

PresentationFramework.dll

Attaches a child element to a Popup control.

public:
 static void CreateRootPopup(System::Windows::Controls::Primitives::Popup ^ popup, System::Windows::UIElement ^ child);

public static void CreateRootPopup (System.Windows.Controls.Primitives.Popup popup, System.Windows.UIElement child);

static member CreateRootPopup : System.Windows.Controls.Primitives.Popup * System.Windows.UIElement -> unit

Public Shared Sub CreateRootPopup (popup As Popup, child As UIElement)

Parameters

popup

Popup

The Popup to which to add child content.

child

UIElement

The UIElement child content.

Remarks

You might want to create a custom control that has the same functionality as an existing control and also exhibits the behavior of a Popup. You can make your control behave like a Popup by adding a Popup to your control and calling the CreateRootPopup method.

This method assigns child to the child property and binds the following properties to child.

• IsOpen

• CustomPopupPlacementCallback

• Placement

• PlacementRectangle

• PlacementTarget

• StaysOpen

• HorizontalOffset

• VerticalOffset

You should implement these as dependency properties in your control so it can be used the same way as a Popup. For more information, see Custom Dependency Properties.

When you call CreateRootPopup, child cannot be a child of a UIElement. Also, PlacementTarget should be set on your control before you call this method.