How to position ContextMenuStrip

I can't seem to figure out how to position my ContextMenuStrip below my dataGridViewCell. When I click the dataGridViewComboBoxCell I want my ContextMenuStrip to show right below the cell. Here's what I've done so far:

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class MyDropDownList : DataGridViewComboBoxCell
{
   ContextMenuStrip dropDownList; public MyDropDownList()
   {
       dropDownList = new ContextMenuStrip();
       dropDownList.Items.Add("Hello World");
       dropDownList.Items.Add("Goodbye");
       dropDownList.Items.Add("Random stuff...");
   } protectedoverridevoid OnMouseClick(DataGridViewCellMouseEventArgs e)
   {// ContextMenuStrip shows where the mouse// was clicked within the cell area...// I want the ContextMenuStrip to show // right below the cell and to be aligned // properly with the cell.
       dropDownList.Show(Cursor.Position.X, Cursor.Position.Y); // This wasn't even close!// dropDownList.Show(base.DataGridView.PointToScreen(e.Location));   }
}

So basically I want the ContextMenuStrip to is act is my
DropDownList for the dataGridViewComboBoxCell

dee allen