Binding nullable value to combobox

[Bob Rundle]

I'm binding a ComboBox to a field in a DataRow. I am loading the combobox
with values from an Enum. I am building to the "SelectedItem" property.
Everything works find except that I want to display (None) in the combo box
when the field is null. Is there a way to do this? I tried setting the
default value in the XML Schema, but this did not help.

Regards,
Bob Rundle

 

[Miha Markic [MVP C#]]

Hi Bob,

AFAIK is not possible out of the box.
You could use custom drawing probably or use some 3rd party control.

 

[Cor Ligthert]

Bob,

Have a look at this
binding format event
http://msdn.microsoft.com/library/d...systemwindowsformsbindingclassformattopic.asp

and this when you want to do it the other way back
binding parse event
http://msdn.microsoft.com/library/d...fsystemwindowsformsbindingclassparsetopic.asp

I hope this helps?

Cor

gbl...