Popup.CustomPopupPlacementCallback Property

Reference

Definition

Namespace:: System.Windows.Controls.Primitives

Assembly:: PresentationFramework.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets or sets a delegate handler method that positions the Popup control.

public:
 property System::Windows::Controls::Primitives::CustomPopupPlacementCallback ^ CustomPopupPlacementCallback { System::Windows::Controls::Primitives::CustomPopupPlacementCallback ^ get(); void set(System::Windows::Controls::Primitives::CustomPopupPlacementCallback ^ value); };

[System.ComponentModel.Bindable(false)]
public System.Windows.Controls.Primitives.CustomPopupPlacementCallback CustomPopupPlacementCallback { get; set; }

[<System.ComponentModel.Bindable(false)>]
member this.CustomPopupPlacementCallback : System.Windows.Controls.Primitives.CustomPopupPlacementCallback with get, set

Public Property CustomPopupPlacementCallback As CustomPopupPlacementCallback

Property Value

CustomPopupPlacementCallback

The CustomPopupPlacementCallback delegate method that provides placement information for the Popup control. The default is null.

Attributes: BindableAttribute

Examples

The following example shows how to set a CustomPopupPlacementCallback delegate.

popup1.CustomPopupPlacementCallback =
    new CustomPopupPlacementCallback(placePopup);

popup1.CustomPopupPlacementCallback = New CustomPopupPlacementCallback(AddressOf placePopup)

public CustomPopupPlacement[] placePopup(Size popupSize,
                                           Size targetSize,
                                           Point offset)
{
    CustomPopupPlacement placement1 =
       new CustomPopupPlacement(new Point(-50, 100), PopupPrimaryAxis.Vertical);

    CustomPopupPlacement placement2 =
        new CustomPopupPlacement(new Point(10, 20), PopupPrimaryAxis.Horizontal);

    CustomPopupPlacement[] ttplaces =
            new CustomPopupPlacement[] { placement1, placement2 };
    return ttplaces;
}

Public Function placePopup(ByVal popupSize As Size, ByVal targetSize As Size, ByVal offset As Point) As CustomPopupPlacement()
    Dim placement1 As New CustomPopupPlacement(New Point(-50, 100), PopupPrimaryAxis.Vertical)

    Dim placement2 As New CustomPopupPlacement(New Point(10, 20), PopupPrimaryAxis.Horizontal)

    Dim ttplaces() As CustomPopupPlacement = { placement1, placement2 }
    Return ttplaces
End Function

Remarks

Dependency Property Information

Item	Value
Identifier field	CustomPopupPlacementCallbackProperty
Metadata properties set to `true`	None

Applies to

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