How Do I Force Out ToolTips on DataGridViewCells?

[That Asian Guy]

How do I make the tooltip appear on a datagridviewcell (textBox column) even if the user doesn't move their mouse over it and while it is editing. I am trying to implement a auto-complete feature that will show a tooltip with a match and ask the user to press a key if it is the correct match. It is identical to Visual Studio when one presses form1.FormClosed += and the tooltip box appears with an auto-complete of the event. Thanks in advance.