this.ddlBigClass.DataSource = ds;
this.ddlBigClass.DataTextField = "Name";
this.ddlBigClass.DataValueField = "PK_Id";
this.ddlBigClass.DataBind();
this.ddlBigClass.Items.Insert(0, new ListItem("=搜所有分类=",""));
如果不用数据库可以直接添
要连数据库就要绑定数据了
ddl.Items.Add();