This documentation is archived and is not being maintained.

Popup.PlacementTarget Property

Gets or sets the element relative to which the Popup is positioned when it opens.

Namespace: System.Windows.Controls.Primitives
Assembly: PresentationFramework (in presentationframework.dll)
XML Namespace:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

[BindableAttribute(true)] 
public UIElement PlacementTarget { get; set; }
/** @property */
public UIElement get_PlacementTarget ()

/** @property */
public void set_PlacementTarget (UIElement value)

public function get PlacementTarget () : UIElement

public function set PlacementTarget (value : UIElement)

<object>
  <object.PlacementTarget>
    <UIElement .../>
  </object.PlacementTarget>
</object>

Property Value

The UIElement that is the logical parent of the Popup control. The default value is a null reference (Nothing in Visual Basic).

Identifier field

PlacementTargetProperty

Metadata properties set to true

None

If the PlacementTarget is a null reference (Nothing in Visual Basic) and a Popup control has a defined visual parent, the visual parent is the PlacementTarget. If the Popup does not have a visual parent or a PlacementTarget, the Popup control is positioned relative to the upper-left corner of the screen.

This set of examples shows how to use the placement properties to specify the position of a Popup control.

You can determine the position of a Popup control by using the following properties:

The first four properties define a two-dimensional coordinate on the screen. The fifth property, Placement, positions the Popup and also defines its behavior if its content overlaps the screen boundaries.

Use a PlacementMode enumeration value to set the Placement property. For more information about the enumeration values for PlacementMode, see How to: Use the PlacementMode Enumeration to set Placement.

The following illustrations show how the placement properties work together to position a Popup control.

Popup placement by using the Placement property


Popup placement

Popup placement by using the Placement and PlacementRectangle properties


Popup placement rectangle

Popup placement by using the Placement, PlacementRectangle, and Offset properties


Popup placement diagram

The following example shows how to set these Popup properties. For the complete sample, see Popup Position Sample.

Popup myPopup = new Popup();
myPopup.PlacementTarget = myEllipse;
myPopup.PlacementRectangle = new Rect(0, 0, 30, 50);
myPopup.VerticalOffset = 20;
myPopup.HorizontalOffset = 20;
myPopup.Placement = PlacementMode.Bottom;
myPopup.PopupAnimation = PopupAnimation.Fade;
myPopup.AllowsTransparency = true;
TextBlock popupText = new TextBlock();
popupText.Background = Brushes.Beige;
popupText.FontSize = 12;
popupText.Width = 75;
popupText.TextWrapping = TextWrapping.Wrap;
myPopup.Child = popupText;

More Code

How to: Specify a Custom Popup Position

This example shows how to specify a custom position for a Popup control when the Placement property is set to Custom.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0
Show: