System.Data.DataRowView（显示在多列combobox中）

我想在combobox中做多列，我想certificate第二列，

但combobox中显示的项目replace后，我做了以下代码： System.Data.DataRowView

string sql = "SELECT customer.customer, arcustmst.cust_name_1 FROM customer INNER JOIN arcustmst ON customer.customer=arcustmst.cust_code"; SqlCommand custcom = new SqlCommand(sql, myconnection); SqlDataAdapter da = new SqlDataAdapter(custcom); DataSet1 ds = new DataSet1(); da.Fill(ds, "customerFrom"); cboFrom.DisplayMember = "customer.customer" + string.Format({0,-5}, "arcustmst.cust_name_1"); cboFrom.ValueMember = "customer.customer" + string.Format({0,-5}, "arcustmst.cust_name_1"); cboFrom.DataSource = ds.Tables["customerFrom"]; 

结果：

任何人都可以请帮助和指导。

提前致谢