Use the UseWaitCursor Property to Change Cursors

The Application class also contains a UseWaitCursor property, which sets the UseWaitCursor property of all open Forms in the application. Set it to false to change the cursor to the default shape.

For instance:

1. 
      // Display an hourglass cursor:
      this.UseWaitCursor = true;
      ..
      // change back to default
      this.UseWaitCursor = false;
   

2. 
      // To display for all opened forms 
      Application.UseWaitCursor = true;
      ..
      // change back to default
      Application.UseWaitCursor = false;