自定义data table 的列类型，并填充数据

            DataTable customerTable = new DataTable();
            customerTable.Columns.Add("clsCustomerID", typeof(string));       //定义列类型
            customerTable.Columns.Add("clsCustomerNM", typeof(string));

            DataRow row = customerTable.NewRow();                //加一行
            row["clsCustomerID"] = "01.2136";
            row["clsCustomerNM"] = "MAXIS1";

            customerTable.Rows.Add(row);


            DataRow row1 = customerTable.NewRow();              //加另一行
            row1["clsCustomerID"] = "01.2255";
            row1["clsCustomerNM"] = "VSC2_PRE_W1";

            customerTable.Rows.Add(row1);


            comboBox1.DataSource = customerTable;             //设置datasource 和 显示和实际数据列
            comboBox1.DisplayMember = "clsCustomerNM";
            comboBox1.ValueMember = "clsCustomerID";