Question

I am using a System.Windows.Forms.Combobox
bound to Category table as search criteria. I need to have a value “All” or empty string that will be selected when user does not want to use this criteria. Since combo is bound, each time it is clicked, value added by combo1.Text = “All” is erased. Obviously, I can’t add “All” category to database. What is the best way to accomplish this?

Answer 1

Either manually add the All entry to the bound dataset after the other values have been loaded, or unbind the combo and instead iterate through the data to populate it. It’s just a search combo, so you don’t really need all the benefits of binding.