gridview not handling "OR"

[G. Whiz]

I used the wizard to create the sql statment for the gridview.
I have 2 textboxes PartNumber and PartName which I use for parameters.

I changed manually in source the AND to an OR.

SELECT* from table1WHERE ([PartNumber] = @PartNumber) or ([PartName] =
@PartName)

Yet the results show that the select statement is still treating the
statement as if it had an AND.

Help?