The message box with masks is displayed in WPF, And the masks are displayed in wpf.

The message box with masks is displayed in WPF, And the masks are displayed in wpf.

 

Ideas

Get the content of the parent form, put it in a container, and then put a translucent layer in the container. Assign the entire container to the content of the parent form.

Reverse operation when disabled.

 

Code

When the message window pops up

1 /// <summary> 2 /// pop-up message box 3 /// </summary> 4 /// <param name = "message"> message </param> 5 /// <param name = "owner"> parent form </param> 6 public static void ShowDialog (string message, window owner) 7 {8 // mask 9 Grid layer = new Grid () {Background = new SolidColorBrush (Color. fromArgb (128, 0, 0, 0)}; 10 // the original content of the parent Form 11 UIElement original = owner. content as UIElement; 12 owner. content = null; 13 // container Grid14 Grid container = new Grid (); 15 container. children. add (original); // put the original content 16 iner. children. add (layer); // place a layer of mask on top 17 // assign the container containing the original content and mask to the parent Form 18 owner. content = container; 19 20 // pop-up message box 21 MessageBox box = new MessageBox () {Owner = owner}; 22 box. tbc_message.Text = message; 23 box. showDialog (); 24}

When the message box is closed

1 /// <summary> 2 // form close event 3 /// </summary> 4 private void Window_Closed (object sender, EventArgs e) 5 {6 // container Grid 7 Grid grid = this. owner. content as Grid; 8 // original Content of the parent form 9 UIElement original = VisualTreeHelper. getChild (grid, 0) as UIElement; 10 // remove the original content of the parent form from the container Grid. children. remove (original); 12 // assigned to the parent Form 13 this. owner. content = original; 14}

Source code download: MessageBoxWithLayer.zip