How to Suppress KeyDown Event

10 Oct 20223 minutes to read

To suppress the TableControlCurrentCellKeyDown event, enable the SuppressKeyPress property in this event. To get the Keys data, override the ProcessCmdKey() method.

1. Suppress the KeyDown event as given in the following code:

   C#

   void gridGroupingControl1_TableControlCurrentCellKeyDown(object sender, Syncfusion.Windows.Forms.Grid.Grouping.GridTableControlKeyEventArgs e)
   {
   	e.Inner.SuppressKeyPress = true;
   }

   VB.NET

   Private Sub gridGroupingControl1_TableControlCurrentCellKeyDown(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.Grid.Grouping.GridTableControlKeyEventArgs)
   e.Inner.SuppressKeyPress = True
   End Sub

2. Handle the ProcessCmdKey() method to get the keys data as given in the following code:

   C#

   protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
   {
   	Keys keyCode = keyData & Keys.KeyCode;
   	switch (keyCode)
   	{
   		case Keys.Down: Console.WriteLine("down");                 
   			break;
      
   		case Keys.Up: Console.WriteLine("Up");
   			break;
      
   		case Keys.Right: Console.WriteLine("Right");
   			break;
      
   		case Keys.Left: Console.WriteLine("Left");
   			break;
      
   		case Keys.PageUp: Console.WriteLine("PageUp");
   			break;
      
   		case Keys.PageDown: Console.WriteLine("PageDown");
   			break;
   	}            
   		return base.ProcessCmdKey(ref msg, keyData);
   }

   VB.NET

   Protected Overrides Function ProcessCmdKey(ByRef msg As Message, ByVal keyData As Keys) As Boolean
   Dim keyCode As Keys = keyData And Keys.KeyCode
   Select Case keyCode
   Case Keys.Down
   Console.WriteLine("down")
   Exit Select
      
   Case Keys.Up
   Console.WriteLine("Up")
   Exit Select
      
   Case Keys.Right
   Console.WriteLine("Right")
   Exit Select
      
   Case Keys.Left
   Console.WriteLine("Left")
   Exit Select
      
   Case Keys.PageUp
   Console.WriteLine("PageUp")
   Exit Select
      
   Case Keys.PageDown
   Console.WriteLine("PageDown")
   Exit Select
   End Select
   Return MyBase.ProcessCmdKey(msg, keyData)
   End Function