Error on form closing

[Ken McLean]

I am using a data-bound combo box on a Windows form. When I set the autocompletemode property to "suggest" the form will not close properly. The following exception is thrown when the user closes the form:

Cannot bind to the property or column LastName on the DataSource. Parameter name: dataMember
​

This exception is not thrown when the autocompletemode property is set to "none".

Is there anyway to work around this problem -- I reallly need the autocomplete functionality for my application? Thanks for your help.

Ken McLean

 

[BadgerByte]

Hey,

After a quick google, seems this must be quite a rare issue!
Did come up with this, not sure it'll help though but it's something.

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=171220&SiteID=1

Regards,

Andy

 

[Ken McLean]

Andy,

Thanks, I saw that post before I posted my query. It does not help my situation. I don't have multiple combo boxes or data sets -- just one data set and one combo box.

Ken McLean

 

[jmcilhinney]

The autocomplete mode and the data binding are obviously interacting badly. As a workaround you could remove one or the other in the FormClosing event handler.

 

[Ken McLean]

Thanks, I removed the auto complete feature in the form closing event handler and that did the trick. This appears to be a bug and I am surprised it is not listed in the Microsoft Knowledge base which I searched.