先上效果圖:
相關添加蒙板後臺代碼如下:
/// <summary>
/// 顯示子窗體
/// </summary>
/// <param name="obj">父窗體</param>
/// <param name="showWindow">子窗體</param>
private void ShowWindow(object obj, Window showWindow)
{
Window owner = null;
if (obj is Window)
{
owner = obj as Window;
}
//蒙板
Grid layer = new Grid() { Background = new SolidColorBrush(Color.FromArgb(128, 0, 0, 0)) };
//父級窗體原來的內容
UIElement original = owner.Content as UIElement;
owner.Content = null;
//容器Grid
Grid container = new Grid();
container.Children.Add(original);//放入原來的內容
container.Children.Add(layer);//在上面放一層蒙板
//將裝有原來內容和蒙板的容器賦給父級窗體
owner.Content = container;
//彈出消息框
showWindow.Owner = owner;
showWindow.ShowDialog();
}
退出時蒙板關閉子窗體關閉如下:
/// <summary>
/// 關閉窗口
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void BtnClose_Click(object sender, RoutedEventArgs e)
{
Grid grid = this.Owner.Content as Grid;
//父級窗體原來的內容
UIElement original = VisualTreeHelper.GetChild(grid, 0) as UIElement;
//將父級窗體原來的內容在容器Grid中移除
grid.Children.Remove(original);
//賦給父級窗體
this.Owner.Content = original;
this.Close();
}