C# DEV 树、Grid、下拉框等设定数据源对比

① 树（DevExpress.XtraTreeList.TreeList控件）

        /// <summary>
        /// 刷新本页面
        /// </summary>
        private void FreshDistrictInfo()
        {
            DistrictModel districtModel = new DistrictModel();
            string strDistrictModel = Newtonsoft.Json.JsonConvert.SerializeObject(districtModel);
            string strResult = WebLockConfig.Instance.webDistrictInfo.GetDistrictInfo(strDistrictModel);
            DataSet ds = Newtonsoft.Json.JsonConvert.DeserializeObject<DataSet>(strResult);
            treeDistrictInfo.DataSource = ds.Tables[0];
11             treeDistrictInfo.Nodes[0].Expanded = true;
            districtModel = null;
        }  

②Grid（Ctrl.MyGridControl自定义）

        /// <summary>
        /// 刷新窗体
        /// </summary>
        private void FreshWindow()
        {
            ProvinceModel provinceModel = new ProvinceModel();
            provinceModel.PRO_ID = txtProID.Text.Trim();
            provinceModel.PRO_NAME = txtProName.Text.Trim();

            string strProvinceModel = Newtonsoft.Json.JsonConvert.SerializeObject(provinceModel);
            string strResult = WebLockConfig.Instance.webProvince.GetProvinceDS(strProvinceModel);
            DataSet ds = Newtonsoft.Json.JsonConvert.DeserializeObject<DataSet>(strResult);
            GCProvince.DataSource = ds.Tables[0];
            provinceModel = null;
        }

③ DevExpress.XtraEditors.LookUpEdit控件

        /// <summary>
        /// 绑定所属省份的数据
        /// </summary>
        private void BindCmbProvince()
        {
            ProvinceModel bindProvinceModel = new ProvinceModel();
            string strBindProvince = Newtonsoft.Json.JsonConvert.SerializeObject(bindProvinceModel);
            string strResult = WebLockConfig.Instance.webProvince.GetProvinceDS(strBindProvince);
            DataSet ds = Newtonsoft.Json.JsonConvert.DeserializeObject<DataSet>(strResult);

            DataRow dr = ds.Tables[0].NewRow();
            dr["PRO_ID"] = "";
            dr["PRO_NAME"] = "请选择";
            ds.Tables[0].Rows.InsertAt(dr,0);
            cmbProvince.SelectedText = "请选择";
            cmbProvince.Properties.DataSource = ds.Tables[0];
            cmbProvince.Properties.DropDownRows = ds.Tables[0].Rows.Count;

            bindProvinceModel = null;
            ds = null;
            dr = null;
        }