//绑定lookUpEdit          private void BoundData()          {              string sql = "select daID,xm,sfzh from baseinfo";              DataSet ds = Archives.DataAccess.DataSql.Query(sql);              if (ds != null)              {                  int rows = ds.Tables[0].Rows.Count;                    lookUpEdit1.EditValue = "daID";                  lookUpEdit1.Properties.ValueMember = "daID";                  lookUpEdit1.Properties.DisplayMember = "xm";                  lookUpEdit1.Properties.DataSource = ds.Tables[0];                    //自适应宽度                  //lookUpEdit1.Properties.BestFitMode = DevExpress.XtraEditors.Controls.BestFitMode.BestFitResizePopup;                    //填充列                  lookUpEdit1.Properties.PopulateColumns();                    //设置列属性                  //lookUpEdit1.Properties.Columns[0].Visible = false;                  lookUpEdit1.Properties.Columns[1].Caption = "姓名";                  lookUpEdit1.Properties.Columns[2].Caption = "身份证号";                  lookUpEdit1.Properties.Columns[1].Width = 120;                  lookUpEdit1.Properties.Columns[2].Width = 300;                    //控制选择项的总宽度                  lookUpEdit1.Properties.PopupWidth = 500;                    //列格式设置                  lookUpEdit1.Properties.Columns[0].FormatString = "000000";                    //选择第一项                  lookUpEdit1.ItemIndex = 0;               }          }            //值改变事件          private void lookUpEdit1_EditValueChanged(object sender, EventArgs e)          {              string daID = this.lookUpEdit1.EditValue.ToString();　//是ookUpEdit.Properties.ValueMember的值              string xm = this.lookUpEdit1.Text.Trim();          }