On Thu, 02 Jun 2005 22:30:30 -0400, Peter D. Dunlap
<pdunlap@NOSPAMfcsg.com> wrote:
>On Thu, 26 May 2005 10:19:24 -0400, Peter D. Dunlap
><pdunlap@NOSPAMfcsg.com> wrote:
>
>>(Sounds like a Harry Potter title or something...)
>>
>>After much searching and fiddling, I have finally got a working
>>DataGridComboBoxColumn and the associated DataGridComboBox control,
>>and they seem to work well, except for two odd things:
>>
>>(1) If you are entering a value in the combo box on the new row, and
>>this causes another new row to be created, the first combo box event
>>disappears. If you open the dropdown and click a selection with the
>>mouse, the new row gets created and the combo box goes back to its
>>original selection. Same for if you hit a key to make the selection -
>>the first time creates the new row, and the next time you can actually
>>select something.
>>
>>(2) The arrow keys do not work within the combo box to make
>>selections. The F4 key will open the selection list, but if you hit
>>the down arrow key it will move you to the next grid row and collapse
>>the select list.
>>
>>Does anyone have a solution for either of these problems?
>>
>> Pete Dunlap
>
>More information on item (1) which is more important to figure out:
>
>I go to the combo box on the new row and select an item. The
>following things happen:
>
>(a) In the ComboBox control, OnSelectionChangeCommitted happens, and
>the selected index at that point is correct for the item I picked.
>
>(b) The Edit function in the column style class is called.
>
>(c) In the ComboBox control, OnSelectedIndexChanged happens, and the
>selected index is now -1.
>
>I'm not sure where to look to figure out what's happening. I've got
>custom versions of the DataGrid, the column style and the ComboBox so
>I can put debugging code anywhere in there, I just don't know where to
>look next. (I've even got source for the system classes courtesy of
>Reflector, but the DataGrid class in particular is huge...)
