web       DropDownList綁定數(shù)據(jù)源的幾種方式
 第一種
                this.ddltype.DataTextField = "btName";//顯示的值
                this.ddltype.DataValueField = "btId";//獲取dropdownlist中的值
                ddltype.DataSource = service.GetBusinessTypeAll("");
                this.ddltype.DataBind();
第二種
                 DataTable dt_GetBusinessName = service.GetBusinessTypeAll("");

                //表中無(wú)數(shù)據(jù)的話直接返回
                if (dt_GetBusinessName == null)
                    return;

                for (int i = 0; i < dt_GetBusinessName.Rows.Count; i++)
                {
                    ddltype.Items.Add(new ListItem(dt_GetBusinessName.Rows[i]["btName"].Trim();//顯示的值
                    dt_GetBusinessName.Rows[i]["btId"].ToString().Trim()));
                }
                ddltype.Items.Add(new ListItem("全部", "-1"));
                ddltype.Text = "全部";

windows     combox的手寫(xiě)數(shù)據(jù)綁定
            第一種：
                cCombox1.DisplayMember = "btName";//顯示的值
                cCombox1.ValueMember = "btId";
                cCombox1.DataSource = _manageService.GetBusinessTypeAll(this.UserInfo.uNote1);
            第二種：
                 DataTable dt_GetStateByName = _financeService.GetStateByNam(UserInfo.uNote1);

                //表中無(wú)數(shù)據(jù)的話直接返回
                if (dt_GetStateByName == null)
                    return;

                for (int i = 0; i < dt_GetStateByName.Rows.Count; i++)
                {
                       cbType2.Items.Add(new ListItem(dt_GetStateByName.Rows[i]["osState"].Trim(),
                       dt_GetStateByName.Rows[i]["osName"].ToString().Trim()));//顯示的值
                }
                cbType2.Items.Add(new ListItem("-1", "全部"));
                cbType2.Text = "全部";