Help Keep Boards Alive. Support us by going ad free today. See here: https://subscriptions.boards.ie/.
If we do not hit our goal we will be forced to close the site.

Current status: https://keepboardsalive.com/

Annual subs are best for most impact. If you are still undecided on going Ad Free - you can also donate using the Paypal Donate option. All contribution helps. Thank you.

https://www.boards.ie/group/1878-subscribers-forum

Private Group for paid up members of Boards.ie. Join the club.

Windows Forms, Placing a null into a combobox

Evil Phil · 2005-01-19 12:45:30

Folks, I've a databound combobox. The field it is bound to is nullable, the datasource that populates the combobox doesn't contain nulls. So my problem is I need to be able to insert a null value into the combobox which I can do until I save the data, at this point the combobox selects the first value in its list and that…

19-01-2005 01:45PM

#1

Evil Phil

Registered Users, Registered Users 2 Posts: 7,468 ✭✭✭

Join Date: March 2001

Posts: 6624

Folks,

I've a databound combobox. The field it is bound to is nullable, the datasource that populates the combobox doesn't contain nulls. So my problem is I need to be able to insert a null value into the combobox which I can do until I save the data, at this point the combobox selects the first value in its list and that is written to the db . Does anybody know away around this? I've tried various things like setting the SelectedValue property to DBNull.Value and setting the field in the bound datasource to null as well. Doesn't work.

Any suggestions?

0