DropDownList 动态绑定

SqlConnection Conn = new SqlConnection( "server=localhost;database=bbsno1;uid=sa;pwd=sa" );
string SQL_Select = "select id, ItemName from TABLE1 order by id desc";
//构造一个SqlDataAdapter
SqlDataAdapter myAdapter = new SqlDataAdapter( SQL_Select, Conn);
//开始读取数据
Conn.Open();
DataSet dataSet = new DataSet();
myAdapter.Fill( dataSet,"Table1" );
Conn.Close();
//开始绑定DropDownList
//指定DropDownList使用的数据源
DropDownList1.DataSource = dataSet.Tables["Table1"].DefaultView;
//指定DropDownList使用的表里的那些字段
DropDownList1.DataTextField = "ItemName"; //dropdownlist的Text的字段
DropDownList1.DataValueField = "id";//dropdownlist的Value的字段
DropDownList1.DataBind();