I have bound a dgvcombobox to a datasource/table/column value set. I would
like to be able to include a NULL value in the pick list the combo box
shows, but it seems that once I've clicked in the combo box, there's no way
to assign a NULL value in the DataGridView for that column.
--
"I have nothing but the greatest respect for other peoples' crackpot
beliefs".
-- Sam the Eagle.
6  6140 
John wrote: I have bound a dgvcombobox to a datasource/table/column value set. I would
like to be able to include a NULL value in the pick list the combo box
shows, but it seems that once I've clicked in the combo box, there's no way
to assign a NULL value in the DataGridView for that column.
Why don't you insert the Null to the datasource/table/column before
binding it?
Chris
Hello John,
Set combobox.Text=" ".
J> I have bound a dgvcombobox to a datasource/table/column value set. I
J> would like to be able to include a NULL value in the pick list the
J> combo box shows, but it seems that once I've clicked in the combo
J> box, there's no way to assign a NULL value in the DataGridView for
J> that column.
J>
---
WBR,
Michael Nemtsev :: blog: http://spaces.msn.com/laflour
"At times one remains faithful to a cause only because its opponents do not
cease to be insipid." (c) Friedrich Nietzsche
Michael Nemtsev wrote: Hello John,
Set combobox.Text=" ".
J> I have bound a dgvcombobox to a datasource/table/column value set. I
J> would like to be able to include a NULL value in the pick list the
J> combo box shows, but it seems that once I've clicked in the combo
J> box, there's no way to assign a NULL value in the DataGridView for
J> that column.
J> ---
WBR,
Michael Nemtsev :: blog: http://spaces.msn.com/laflour
"At times one remains faithful to a cause only because its opponents do
not cease to be insipid." (c) Friedrich Nietzsche
Don't think that solves the issue:
"I would like to be able to include a NULL value in the pick list the"
If you populate the datasource with a select, you can insert the Null value
using an union. For example
SELECT
null AS CustomerID,
'(none)' AS CustumerName
FROM
Customers
UNION
SELECT
CustomerID,
CustomerName
FROM
Customers;
"Chris" <no@spam.com> escribió en el mensaje
news:uy******** ******@TK2MSFTN GP09.phx.gbl... John wrote: I have bound a dgvcombobox to a datasource/table/column value set. I
would like to be able to include a NULL value in the pick list the combo
box shows, but it seems that once I've clicked in the combo box, there's
no way to assign a NULL value in the DataGridView for that column.
Why don't you insert the Null to the datasource/table/column before
binding it?
Chris
"Chris" <no@spam.com> wrote in message
news:uy******** ******@TK2MSFTN GP09.phx.gbl... John wrote: I have bound a dgvcombobox to a datasource/table/column value set. I
would like to be able to include a NULL value in the pick list the combo
box shows, but it seems that once I've clicked in the combo box, there's
no way to assign a NULL value in the DataGridView for that column.
Why don't you insert the Null to the datasource/table/column before
binding it?
I'll give it a try. I was just hoping there was a "AllowNull" setting on the
control that would allow it to work without me having to do that :)
"Alex Bibiano" <ab******@nikel .es> wrote in message
news:%2******** ********@TK2MSF TNGP14.phx.gbl. .. If you populate the datasource with a select, you can insert the Null
value using an union. For example
SELECT
null AS CustomerID,
'(none)' AS CustumerName
FROM
Customers
UNION
SELECT
CustomerID,
CustomerName
FROM
Customers;
This works nicely, thanks. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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