对下拉控件的绑定
Datatable dt1 = .....(获取数据)
this.DropDownList2.DataTextField = "fullName";
this.DropDownList2.DataValueField = "ID";
this.DropDownList2.DataSource =dt1;
this.DropDownList2.DataBind();
this.DropDownList2.DataTextField = "fullName";
this.DropDownList2.DataValueField = "ID";
this.DropDownList2.DataSource =dt1;
this.DropDownList2.DataBind();