I havecreated a Combobox as a cell within a DataGridView. The DataGridView is bound to a table. When I execute the program and click on the combobox dropdown, the combobox is highlighted. I need to click a second time for the dropdown list to open. How can I fix this so the dropdown list opens on the first click?

This is what I use. May not be pretty, but it seems to work.

Private Sub DataGridView1_CellEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellEnter 'eliminates double click to drop combobox Dim dgv As DataGridView = CType(sender, DataGridView) If dgv(e.ColumnIndex, e.RowIndex).EditType.ToString() = "System.Windows.Forms.DataGridViewComboBoxEditingControl" Then SendKeys.Send("{F4}") End If End Sub

Using the CellEnter event causes problems when I try to select a row or delete a row.

Is there a way to deterimine if the dropdown arrow was clicked on the combobox and then send the F4 key?