Question

我想将PopUp准确地置于屏幕中央。我使用了Usercontrol在弹出窗口中显示。但是，我计算HorizontalOffset和垂直偏移的方式是错误的。

        Popup popUp = new Popup();
        ProgressScreen progressScreen = new ProgressScreen();
        popUp.Child = progressScreen;
        //popUp.HorizontalOffset = (this.ActualWidth/2) + (progressScreen.ActualWidth / 2);
        popUp.VerticalOffset = (this.ActualHeight / 2) + (progressScreen.ActualHeight / 2);
        popUp.HorizontalOffset = (this.ActualWidth - progressScreen.ActualWidth) / 2;
        popUp.Height = this.ActualHeight;
        popUp.Width = this.ActualWidth;
        popUp.IsOpen = true;

Answer 1

我认为这应该让它起作用

popUp.Placement = System.Windows.Controls.Primitives.PlacementMode.Center;

但是为了工作，弹出窗应放在占据整个屏幕的容器中

居中弹出/ UserControl

1 个答案: