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Asked: 2026-05-10T18:58:57+00:00

I have a DataGridView with one DataGridViewComboBoxColumn in my WinForms application. I need to

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I have a DataGridView with one DataGridViewComboBoxColumn in my WinForms application. I need to drop down (open) this DataGridViewComboBoxColumn manually, let’s say after a button is clicked.

The reason I need this is I have set SelectionMode to FullRowSelect and I need to click 2-3 times to open the combo box. I want to click on the combobox cell and it should drop down immediately. I want to do this with CellClick event, or is there any other way?

I am searching in Google and VS help, but I haven’t found any information yet.

Can anybody help please?

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1 Answer

  1. I know this can’t be the ideal solution but it does create a single click combo box that works within the cell.

       Private Sub cell_Click(ByVal sender As System.Object, ByVal e As DataGridViewCellEventArgs) Handles DataGridView1.CellClick         DataGridView1.BeginEdit(True)         If DataGridView1.Rows(e.RowIndex).Cells(ddl.Name).Selected = True Then             DirectCast(DataGridView1.EditingControl, DataGridViewComboBoxEditingControl).DroppedDown = True         End If     End Sub

    where ‘ddl’ is the combobox cell I added in the gridview.

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