WPF弹出带蒙板的消息框
效果图
思路
拿到父级窗体的内容,放入一个容器里,再在容器里放入一个半透明层.将整个容器赋给父级窗体的内容.
关闭时反向操作.
代码
消息窗弹出时
1 /// <summary> 2 /// 弹出消息框 3 /// </summary> 4 /// <param name="message">消息</param> 5 /// <param name="owner">父级窗体</param> 6 public static void ShowDialog(string message, Window owner) 7 { 8 //蒙板 9 Grid layer = new Grid() { Background = new SolidColorBrush(Color.FromArgb(128, 0, 0, 0)) }; 10 //父级窗体原来的内容 11 UIElement original = owner.Content as UIElement; 12 owner.Content = null; 13 //容器Grid 14 Grid container = new Grid(); 15 container.Children.Add(original);//放入原来的内容 16 container.Children.Add(layer);//在上面放一层蒙板 17 //将装有原来内容和蒙板的容器赋给父级窗体 18 owner.Content = container; 19 20 //弹出消息框 21 MessageBox box = new MessageBox() { Owner = owner }; 22 box.tbc_message.Text = message; 23 box.ShowDialog(); 24 }
消息框关闭时
1 /// <summary> 2 /// 窗体关闭事件 3 /// </summary> 4 private void Window_Closed(object sender, EventArgs e) 5 { 6 //容器Grid 7 Grid grid = this.Owner.Content as Grid; 8 //父级窗体原来的内容 9 UIElement original = VisualTreeHelper.GetChild(grid, 0) as UIElement; 10 //将父级窗体原来的内容在容器Grid中移除 11 grid.Children.Remove(original); 12 //赋给父级窗体 13 this.Owner.Content = original; 14 }
