下拉框控件

下拉框控件的一些设定：

1 //市 2 string strCity = WebLockConfig.Instance.webCom.GetCityByProId(""); 3 DataSet cityDS = Newtonsoft.Json.JsonConvert.DeserializeObject<DataSet>(strCity); 4 cmbCity.Properties.DataSource = cityDS.Tables[0]; 5 cmbCity.Properties.DropDownRows = cityDS.Tables[0].Rows.Count; 6 DataRow cityDR = cityDS.Tables[0].NewRow(); 7 cityDR["CITY_NAME"] = "请选择"; 8 cityDR["CITY_ID"] = ""; 9 cityDS.Tables[0].Rows.InsertAt(cityDR, 0);10 cmbCity.SelectedText = "请选择";