Popup.CustomPopupPlacementCallback 屬性

定義

命名空間:

System.Windows.Controls.Primitives

組件:

PresentationFramework.dll

取得或設定放置 Popup 控制項的委派處理常式方法。

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

屬性值

CustomPopupPlacementCallback

CustomPopupPlacementCallback 委派方法，提供 Popup 控制項的位置資訊。 預設為 null。

屬性

BindableAttribute

範例

下列範例示範如何設定 CustomPopupPlacementCallback 委派。

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

備註

相依性屬性資訊

識別碼欄位	CustomPopupPlacementCallbackProperty
設定為 的中繼資料屬性 true	無

另請參閱

• CustomPopupPlacementCallback