Code: if (e.KeyCode == Keys.S && e.Modifiers == Keys.Control) { a_gui.Search.frmItemSearch px = new a_gui.Search.frmItemSearch(); if (px.ShowDialog() == DialogResult.OK) { cboMet.SelectedValue = b_bis.material_bis.smid;<b this .ActiveControl = cboMet;<br/> } } I am trying to use the CTRL + S key to call a dialog box in a textbox's keydown event but when I press "S" automatically the dialog box opens ? How do I assign CTRL + S short cut for that text box ?