给DropDownList的DataTextField属性绑定两个字段

灵雨飘零

浏览: 35091 次
性别:
来自: 唐山

最近访客更多访客>>

u012363178

woodding2008

InJavaWeTrust

博主相关

博客

微博

相册

留言

关于我

文章分类

全部博客 (160)

社区版块

存档分类

给DropDownList的DataTextField属性绑定两个字段

2010年01月03日星期日 20:29

方法1：在SQL查询语句中拼接字段

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+','+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();
}

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();
}