Question

In order to bring up the menu for a DataGridViewComboBoxCell, I first have to click:
1) the row of the cell I want to edit
2) within the cell I want to edit
3) the I want to edit again, in order to open the ComboBox for the cell.

If another cell is already selected, the first click will close the already-active ComboBox, then 3 more clicks will then be required in order to open the ComboBox.

Seeing as nothing like this level of activity is required in order to click a DataGridViewButtonCell (DGVButtonCells respond to the first click, second if there was already a menu open), can anyone suggest a simple way of getting a class deriving from DataGridViewComboBoxCell to have the same level of responsiveness as DGVButtonCell?

Answer 1

Try setting the EditMode to EditOnEnter (either in the code or on the Properties page of the DataGridView). This should open it on the first click.

dataGridView1.EditMode = System.Windows.Forms.DataGridViewEditMode.EditOnEnter;