Hi
I am facing an error with my cascading dropdownlist as the below code its gives me this error message next to this line:
cmd.Parameters.AddWithValue("@BizSubCateg", SubCatBizDDL.SelectedItem.Value);
and the error message is:" Object reference not set to an instance of an object. "
Note: this dropdown list should store nothing in case if the users didnt select and value so it should work but i dont know why i am facing this error message Go to the complete details ...