方法：C#给DropDownList的DataTextField属性绑定两个字段

方法1：在SQL查询语句中拼接字段< /strong>

 C#代码

using (SqlConnection conn = new SqlConnection("server=(local);database=Northwind;user id=sa;password=sa;min pool size=4;max pool size=100;Connection Lifetime=30;"))    {         SqlDataAdapter adapter1 = new SqlDataAdapter("Select Top 10 ProductId,ProductName+','+convert(nvarchar,UnitPrice) Text FROM Products", conn);         DataTable table1 = new DataTable();         adapter1.Fill(table1);            DropDownList1.DataSource = table1.DefaultView;         DropDownList1.DataTextField = "Text";         DropDownList1.DataValueField = "ProductId";         DropDownList1.DataBind();    }  

方法2：在DataTable中新增一字段

 

 

C#代码

 

 

using (SqlConnection conn = new SqlConnection("server=(local);database=Northwind;user id=sa;password=sa;min pool size=4;max pool size=100;Connection Lifetime=30;"))    {         SqlDataAdapter adapter1 = new SqlDataAdapter("Select Top 10 ProductId,ProductName,UnitPrice FROM Products", conn);         DataTable table1 = new DataTable();         adapter1.Fill(table1);            table1.Columns.Add("Text", System.Type.GetType("System.String"), "ProductName+'-'+UnitPrice");            DropDownList1.DataSource = table1.DefaultView;         DropDownList1.DataTextField = "Text";         DropDownList1.DataValueField = "ProductId";         DropDownList1.DataBind();    }  

 

转载于:https://www.cnblogs.com/RoadGY/archive/2010/05/16/1736533.html