public GoodsList() { InitializeComponent(); GlobalData.InitForm(this); LoadDataGrid(); // try { bll = new BLL.Goods(); bllcls = new BLL.GoodsCls(); //显示第一个分类 var lst = bllcls.GetListForMenu(); var alllst = new List <Model.goods_cls>(); alllst.Add(new Model.goods_cls { cls_no = "", cls_name = "全部" }); alllst.AddRange(lst); comboBox1.DataSource = alllst; themeLst = bll.GetThemeList(); var alllst2 = new List <body.theme>(); alllst2.Add(new body.theme { theme_code = "0", theme_name = "全部" }); alllst2.AddRange(themeLst); comboBox2.DataSource = alllst2; this.btn_first_Click(btn_first, null); } catch (Exception ex) { Program.frmMsg(ex.Message); } }