知识点一 显示XtraGrid.GridView的滚动条
要点：设定ColumnAutoWith选项为false和ShowHorzLines选项为True
具体步骤：GridView的Main-->Views-->OptionsView-->ColumnAutoWith选项为false和ShowHorzLines选项为True
另外的方法，在要改的Designer.cs中，直接更改列宽
知识点二 删除XtraGrid.GridView选中的行 ，使用this.GridViewSalesOrder.DeleteSelectedRows();
1 ///2 /// 删除方法 3 /// 4 /// 5 /// 6 void item_Click(object sender, EventArgs e) 7 { 8 //this.GridSalesOrder.cu 9 int[] selectRow = this.GridViewSalesOrder.GetSelectedRows();10 11 if (selectRow.Length < 0)12 {13 MessageBox.Show("请选择删除的行！");14 return;15 }16 17 this.GridViewSalesOrder.DeleteSelectedRows();18 //for (int i = 0; i < selectRow.Length; i++)19 //{20 // dtTmpGoods.Rows[i].Delete();21 // dtTmpGoods.AcceptChanges();22 //}23 MessageBox.Show("删除成功！");24 //把临时的数据表填充到商品列表中25 GridSalesOrder.DataSource = dtTmpGoods;26 CalculateSaleOrder();27 }
知识点三 右键出现菜单。使用XtraGrid.GridView的PopupMenuShowing事件
1 ///2 /// 右键菜单 3 /// 4 /// 5 /// 6 private void GridViewSalesOrder_PopupMenuShowing(object sender, DevExpress.XtraGrid.Views.Grid.PopupMenuShowingEventArgs e) 7 { 8 string strMenuId = this.Tag.ToString(); 9 DXMenuItem item = new DXMenuItem(" 删除");10 item.Click += new EventHandler(item_Click);11 if (e.Menu != null && e.MenuType == DevExpress.XtraGrid.Views.Grid.GridMenuType.Row)12 {13 e.Menu.Items.Insert(0, item);14 }15 }16 17 ///18 /// 删除方法19 /// 20 /// 21 /// 22 void item_Click(object sender, EventArgs e)23 {24 //this.GridSalesOrder.cu25 int[] selectRow = this.GridViewSalesOrder.GetSelectedRows();26 27 if (selectRow.Length < 0)28 {29 MessageBox.Show("请选择删除的行！");30 return;31 }32 33 this.GridViewSalesOrder.DeleteSelectedRows();34 //for (int i = 0; i < selectRow.Length; i++)35 //{36 // dtTmpGoods.Rows[i].Delete();37 // dtTmpGoods.AcceptChanges();38 //}39 MessageBox.Show("删除成功！");40 //把临时的数据表填充到商品列表中41 GridSalesOrder.DataSource = dtTmpGoods;42 CalculateSaleOrder();43 }
知识点四 Grid中的列显示N位小数，本例子中显示4位
显示效果：
所需设定，在设计模式下，选中列-->外观这个属性
