关于下拉菜单默认选项的问题~急啊!
我在修改页面放置了一个下拉菜单控件,通过读取数据库显示菜单项,我在页面Load事件中加入如下代码:
if(!IsPostBack)
{
SqlConnection myConnection = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["ConnectionString"]);
SqlDataAdapter myCommand = new SqlDataAdapter("select * from sp_M", myConnection);
DataSet ds = new DataSet();
myCommand.Fill(ds, "sp_M");
ddlClass.DataSource=ds.Tables["sp_M"].DefaultView;
ddlClass.DataTextField = "Name";
ddlClass.DataValueField = "ID";
ddlClass.DataBind();
tool.Close();
}
但是我想让ddlClass下拉菜单的默认选择在ID=2的选项上,请问我该如何做呢?