先看看效果图

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

/// <summary>/// 弹出消息框/// </summary>/// <param name="message">消息</param>/// <param name="owner">父级窗体</param>public static void ShowDialog(string message, Window owner){ //蒙板 Grid layer = new Grid() { Background = new SolidColorBrush(Color.FromArgb(128, 0, 0, 0)) }; //父级窗体原来的内容 UIElement original = owner.Content as UIElement; owner.Content = null; //容器Grid Grid container = new Grid(); container.Children.Add(original);//放入原来的内容 container.Children.Add(layer);//在上面放一层蒙板 //将装有原来内容和蒙板的容器赋给父级窗体 owner.Content = container; //弹出消息框 MessageBox box = new MessageBox() { Owner = owner }; box.tbc_message.Text = message; box.ShowDialog();}

消息框关闭时

/// <summary>/// 窗体关闭事件/// </summary>private void Window_Closed(object sender, EventArgs e){ //容器Grid Grid grid = this.Owner.Content as Grid; //父级窗体原来的内容 UIElement original = VisualTreeHelper.GetChild(grid, 0) as UIElement; //将父级窗体原来的内容在容器Grid中移除 grid.Children.Remove(original); //赋给父级窗体 this.Owner.Content = original;}

源码下载：http://xiazai.jb51.net/201612/yuanma/MessageBox(jb51.net).rar

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。