複数のデータソースを単一のドロップダウンリストに設定するにはどうすればよいですか?
DrpPosition.ClearSelection();
DrpPosition.DataSource = AdvertizeManager.GetList("", "", "", "");
DrpPosition.DataTextField = "PNAME";
DrpPosition.DataValueField = "ADID";
DrpPosition.DataBind();
DrpPosition.DataSource = CategoryManager.GetList("", "", "", "");
DrpPosition.DataTextField = "NAME";
DrpPosition.DataValueField = "CATID";
DrpPosition.DataBind();