RadioButtonList 数据绑定

            SqlConnection conNorthwind;
            SqlCommand cmdSelect;
            SqlDataReader dtrCategories;

            conNorthwind = new SqlConnection(@"Server=localhost;Integrated Security=SSPI; Database=Northwind");
            cmdSelect = new SqlCommand("Select CategoryName From Categories", conNorthwind);
            conNorthwind.Open();
            dtrCategories = cmdSelect.ExecuteReader();

            RadioButtonList1.DataSource = dtrCategories;
            RadioButtonList1.DataTextField = "CategoryName";
            RadioButtonList1.DataBind();

            dtrCategories.Close();
            conNorthwind.Close();