VS 2008 DataGridView update problem

Good Evening All

I am struggling with a datagrid view that i currently have got. The code i currently have for the form is attached below.

The combobox filter is populating fine & the datagridview is populating fine based on selected filter item (strConnectionString is a global variable).

However when i edit a field it errors out highlights the sqlDataAdapter.Update(sqlDataTable) line. Copy of the image error message is displayed below as well.

Please can someone help me with what i am doing wrong.

Thank you in advanced

Frosty16

Error Message:
Attachment 96351


Form Code: Attachment 96349

Attached Images

 

Attached Files

• 11022013-DataGridView Form Code.txt‎ (5.1 KB)