insert item in combobox after binding it from a Dataset in c#

Question

I have to insert \"Select\" at top after combobox is bound from dataset.i tried this but it isn\'t working.Throws error \"dataset doesn\'t have any definition for cast\".I t

Answer 1

You cannot add items to a ComboBox after binding it to a data source. To add or remove items from a ComboBox with a bound data source, you have to do it through data source itself.

You can insert a DataRow into your table and it will be automatically added to your ComboBox. Try the following:

 DataRow dr = dsCat.Tables[0].NewRow();
 dr["CategoryName"] = "Select";
 dr["ID"] = 123;// Some ID
 dsCat.Tables[0].Rows.Add(dr);