Using a combobox in a cell

[Administrator]

1) Is there a way to use a comboBbx in a cell without the user being able to chose other values than the ones is the combobox? I've tried setting ExclusiveChoiceList to true, but if you hit the Delete-button and press enter you are able to leave the cell blank!

2) Is there a way to have a ComboBox in a cell with the text in the cell being bold when it is collapsed, but without having the elements in the combobox shown as bold text, when it is "dropped down"...

Sincerely,
Kenneth

[Administrator]

> 1) Is there a way to use a comboBbx in a cell without the user being able to chose other values than the ones is the combobox? I've tried setting ExclusiveChoiceList to true, but if you hit the Delete-button and press enter you are able to leave the cell blank!
>
> 2) Is there a way to have a ComboBox in a cell with the text in the cell being bold when it is collapsed, but without having the elements in the combobox shown as bold text, when it is "dropped down"...
>
> Sincerely,
> Kenneth

1) Try to listen to the ClearingCells event and set e.Cancel = true.

2) Try CurrentCellShowedDropDown. There you can then get to the dropped down listbox and change its font.

Something like
ComboBoxCellRenderer cr = CurrentCell.Renderer;
cr.ListBoxPart.Font = new Font(xxx)

Stefan

[Administrator]

1) The GridClearingCellsEventArgs doesn't have a Cancel-property... :(

2) You probably mean GridComboBoxRenderer... but anyway, I simply cannot make it work! I get no changes at all! Could you show a small example?

Kenneth

[Administrator]

Attached is a sample that shows the text bold, but the combo droplist regular. It uses CurrentCellShowingDropDown to do this.

The ClearingCells event args has an e.Handled that you set to indicate that you handled the clearing. In the attached sample, I added this event too, but it is not needed here as pressing Delete does not clear the cell.

If you are using a GridDataBoundGrid, then that might explain the deleting problem, but setting e.Handled in ClearingCells should prevent this.

[Charles Carlin]

I am having the same problem. I added the ClearingCells event and set e.handled=true like in your example and the event is never fired when I press the delete key. This is in a databound grid control, with a combobox set to exclusive.

[Administrator]

ClearingCells is only hit when you select a range of cells. Pressing delete on an active cell will not fire it.

What grid version are you using?

With the 1.6 beta code, if I have ExclusiveChoiceList = true, then pressing delete on the combobox does not delete the entry. Attached is the little sample I used. If you want to try the 1.6 code base, you can submit a Direct Trac support incident and request it.

[Charles Carlin]

Actually I found that if I add the gridControl1_CurrentCellDeleting event and set e.canel=true along with the gridControl1_ClearingCells event e.handled=true then it does work.