https://www.cnblogs.com/zhao123/p/3913772.html
https://www.cnblogs.com/netsong/p/8028851.html
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1.隐藏最上面的GroupPanel gridView1.OptionsView.ShowGroupPanel=false; 2.得到当前选定记录某字段的值 sValue=Table.Rows[gridView1.FocusedRowHandle][FieldName].ToString(); 3.数据只读 gridView1.OptionsBehavior.Editable=false; 4.不显示MasterDetailView gridView1.OptionsDetail.EnableMasterViewMode=false; 5.修改最上面的GroupPanel内容 gridView1.GroupPanelText="柳生飘絮"; 6.设置数据源: gridControl1.DataSource = dt; 绑定每一列的FiledName--属性 对于Oracle数据库,所有的在设计器里写的程序中的字段名必须大写,否则可能绑定不上字段,sqlserver没有这个限制. 7.读写拷贝权限设置 只读不可拷贝: ColumnViewOptionsBehavior.Editable = False 只读可拷贝: ColumnViewOptionsBehavior.Editable = True OptionsColumn.AllowEdit = True OptionsColumn.ReadOnly = True 可编辑: ColumnViewOptionsBehavior.Editable = True OptionsColumn.AllowEdit = True OptionsColumn.ReadOnly = False 8.模板列的设置: 到Columns中,在他的属性中找到ColumnEdit. 以LookUpEdit为例: 首先从Designer左边菜单In-Place Editor Repository中添加LookUpEdit.取名为Re1.然后.在他的Columns属性中添加3列.Caption依次为:编号,姓名,性别.FieldName依次为:FID,FNAME,FSEX.然后将Re1的NullText设置成空. AutoSearchColumnIndex属性设置为2.ImmediatePopup属性设置为True. SearchMode设置为OnlyInPopup. 然后将这个模板列附加到我们上面提到的列1(也就是将列1的ColumnEdit属性设成Re1) 最后我们还要在代码里面给Re1绑定数据源和显示项. Re1.DataSource = DALUse.Query("select fid,fname,fsex from dual").Tables[0]; Re1.DisplayMember = "FSEX"; Re1.ValueMember = "FNAME"; 9.设某一列文字和标题局中显示 gridView1.Columns[0].AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center; gridView1.Columns[0].AppearanceCell.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center; 10.去掉某一列上面的自动筛选功能(Filter) gridView1.Columns[0].OptionsFilter.AllowAutoFilter = false; gridView1.Columns[0].OptionsFilter.AllowFilter = false; gridView1.Columns[0].OptionsFilter.ImmediateUpdateAutoFilter = false; 11.设置冻结列(左冻结) gridView1.Columns[0].Fixed= DevExpress.XtraGrid.Columns.FixedStyle.Left; 12.得到单元格数据(0行0列) string ss=gridView1.GetRowCellDisplayText(0, gridView1.Columns[0]); string ss = gridView1.GetRowCellValue(0, gridView1.Columns[0]); 13.设置单元格数据(将0行0列的单元格赋值123) gridView1.SetRowCellValue(0, gridView1.Columns[0], "123"); 13.手动添加dev的列 DevExpress.XtraGrid.Columns.GridColumn Col1=new DevExpress.XtraGrid.Columns.GridColumn (); Col1.FieldName="FID"; Col1.Visible=true; Col1.VisibleIndex=gridView1.Columns.Count; gridView1.Columns.Add(Col1); 14.设置自动增加的行号,需要先添加给gridview添加事件CustomDrawRowIndicator private void gridview_CustomDrawRowIndicator(object sender, DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs e) { if (e.Info.IsRowIndicator && e.RowHandle >= 0) e.Info.DisplayText = (e.RowHandle + 1).ToString(); } 15.删除: (修改了dgvdel里的datagridviewdel方法) public static void datagridviewdel_Dev(DevExpress.XtraGrid.Views.Grid.GridView Mydgv) { if (MessageBox.Show("你确定要删除选中的记录吗?", "删除提示", MessageBoxButtons.YesNo, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button2, 0, false) == DialogResult.Yes) { int iSelectRowCount = Mydgv.SelectedRowsCount; if (iSelectRowCount > 0) { Mydgv.DeleteSelectedRows(); } } } 16. 新增: (对于新增,其本身的AddNewRow方法就可以做到) private void btn_add_Click(object sender, EventArgs e) { gridView1.AddNewRow(); } 具体如果对于新加行还有什么特别的设置,可以在它gridView1_InitNewRow事件中填写: private void gridView1_InitNewRow(object sender, DevExpress.XtraGrid.Views.Grid.InitNewRowEventArgs e) { ColumnView View = sender as ColumnView; View.SetRowCellValue(e.RowHandle, View.Columns[0], gridView1.GetRowCellValue(gridView1.GetRowHandle(gridView1.RowCount - 2), gridView1.Columns[0])); //复制最后一行的数据到新行 View.SetRowCellValue(e.RowHandle, View.Columns[1], gridView1.GetRowCellValue(gridView1.GetRowHandle(gridView1.RowCount - 2), gridView1.Columns[1])); //复制最后一行的数据到新行 } 17. 保存 (第三方控件提供的RefreshData和RefreshDataSource方法对于保存数据都不好使,最后还是使用了Dgvsave的datagridviewsave方法,用这个方法就可以) 18.特效:gridcontrol中有5种view 型式,普通的是gridview,然后分别为cardview、BandedView、Advanced BandedView、LayoutView;共5种。 1)、view组中把OptionView下的viewmode 设置成“Carousel”就达到这种“旋转木马”式的gridcontrol view 特效了 2)、layoutView1.OptionsCarouselMode.PitchAngle 这个属性决定“旋转木马”的pitch angle 螺距角; 螺旋角; 螺旋升角; 俯仰角; 倾角; 节锥半角 3)、Roll Angle 属性决定着倾侧角度 4)、指定数据源,显示数据: //显示数据 private void showData(List<Employee > list) { DataTable dt = new DataTable("OneEmployee"); dt.Columns.Add("Caption", System.Type.GetType("System.String")); dt.Columns.Add("Department", System.Type.GetType("System.String")); dt.Columns.Add("PhotoName", System.Type.GetType("System.Byte[]")); for (int i = 0; i < list.Count; i++) { DataRow dr = dt.NewRow(); dr["Caption"] = list[i].Name; dr["Department"] = list[i].Department; string imagePath = @"D:C#photos" + list[i].PhotoPath; dr["PhotoName"] = getImageByte(imagePath); dt.Rows.Add(dr); } gridControl1.DataSource = dt; } //返回图片的字节流byte[] private byte[] getImageByte(string imagePath) { FileStream files = new FileStream(imagePath, FileMode.Open); byte[] imgByte = new byte [files.Length ]; files.Read(imgByte, 0, imgByte.Length); files.Close(); return imgByte; } 19.检查数据的有效性 在gridview的ValidateRow事件中加入检查代码: #region 检查数据 private void gridView1_ValidateRow(object sender, ValidateRowEventArgs e) { GridView view = sender as GridView; view.ClearColumnErrors(); if (view.GetRowCellValue(e.RowHandle, "ReceiveDate") == DBNull.Value) { e.Valid = false; view.SetColumnError(view.Columns["ReceiveDate"], "必须指定日期"); } } #endregion 调用gridview.UpdateCurrentRow()方法执行检查 最常用的DevExpress Winform 4个代码片段: 一 、GridControl的删除操作 private void rILinkEditInfoDel_Click(object sender, EventArgs e) { if (XtraMessageBox.Show("请确定是否删除当前记录?", "警告", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes) { DataRow row = gvInfos.GetDataRow(gvInfos.FocusedRowHandle); delByCode(row["Code"].ToString()); XtraMessageBox.Show("操作成功!"); } } 二、绑定非数据表中列 Hashtable ht = new Hashtable(); private void gridView6_CustomUnboundColumnData(object sender, DevExpress.XtraGrid.Views.Base.CustomColumnDataEventArgs e) { GridView View = sender as GridView; if (e.RowHandle >= 0) { object needAlert = View.GetRowCellValue(e.RowHandle, View.Columns["needAlert"]); if (needAlert != null & needAlert != DBNull.Value && needAlert.ToString().Trim() != "0" & View.GetRowCellValue(e.RowHandle, View.Columns["Value"]) != DBNull.Value) { decimal AverValue = Convert.ToDecimal(View.GetRowCellValue(e.RowHandle, View.Columns["Value"])); object MinValue = View.GetRowCellValue(e.RowHandle, View.Columns["MinValue"]); object MaxVlaue = View.GetRowCellValue(e.RowHandle, View.Columns["MaxValue"]); if (MinValue != DBNull.Value & MinValue != null & MaxVlaue.ToString() != "" & MaxVlaue != DBNull.Value && MaxVlaue != null & MaxVlaue.ToString() != "") { decimal gridColumn2 = Convert.ToDecimal(View.GetRowCellValue(e.RowHandle, View.Columns["MinValue"])); decimal gridColumn1 = Convert.ToDecimal(View.GetRowCellValue(e.RowHandle, View.Columns["MaxValue"])); if (gridColumn2 > AverValue || AverValue > gridColumn1) { if (!ht.ContainsKey("pic")) ht.Add("pic", GetImage(1)); e.Value = ht["pic"]; } } } } } /// <summary> /// 由资源文件获取图片 /// </summary> /// <param name="key"></param> /// <returns></returns> byte[] GetImage(int key) { Image img = DevExpress.Utils.Controls.ImageHelper.CreateImageFromResources(string.Format("RiverSys.Resources.{0}.gif", key.ToString()), typeof(RiverInfos).Assembly); return DevExpress.XtraEditors.Controls.ByteImageConverter.ToByteArray(img, ImageFormat.Gif); } /// <summary> /// 动态根据条件设置行样式 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void gridView6_RowStyle(object sender, DevExpress.XtraGrid.Views.Grid.RowStyleEventArgs e) { GridView View = sender as GridView; if (e.RowHandle >= 0) { object needAlert = View.GetRowCellValue(e.RowHandle, View.Columns["needAlert"]); if (needAlert != null & needAlert != DBNull.Value && needAlert.ToString().Trim() != "0" & View.GetRowCellValue(e.RowHandle, View.Columns["Value"]) != DBNull.Value) { decimal AverValue = Convert.ToDecimal(View.GetRowCellValue(e.RowHandle, View.Columns["Value"])); object MinValue = View.GetRowCellValue(e.RowHandle, View.Columns["MinValue"]); object MaxVlaue = View.GetRowCellValue(e.RowHandle, View.Columns["MaxValue"]); if (MinValue != DBNull.Value & MinValue != null & MaxVlaue.ToString() != "" & MaxVlaue != DBNull.Value && MaxVlaue != null & MaxVlaue.ToString() != "") { decimal gridColumn2 = Convert.ToDecimal(MinValue); decimal gridColumn1 = Convert.ToDecimal(MaxVlaue); if (gridColumn2 > AverValue || AverValue > gridColumn1) { e.Appearance.ForeColor = Color.Red; e.Appearance.BackColor = Color.LightGray; } } } } } 三、GridControl 中颜色选择控件 private void gvMapColor_CustomUnboundColumnData(object sender, DevExpress.XtraGrid.Views.Base.CustomColumnDataEventArgs e) { GridView view = sender as GridView; DataView dv = view.DataSource as DataView; if (e.IsGetData) { string strVal = dv[e.ListSourceRowIndex]["Color"].ToString(); if (strVal != "") { //e.Value = DevExpress.Utils.StyleLayout.ColorFromString(strVal); e.Value = Common.HexToColor(strVal); } } else { //Color colorVal = DevExpress.Utils.StyleLayout.ColorFromString(e.Value.ToString()); Color colorVal = (Color)e.Value; dv[e.ListSourceRowIndex]["Color"] = Common.RGB_HEX(colorVal.ToArgb()); } } 四、关于 GridControl 验证示例 /// <summary> /// 初始化GridView,绑定数据 /// </summary> /// <param name="parentId"></param> private void GridViewBindData(string parentId) { this.gridView1.Columns.Clear(); this.FDs= areaSetupActionHelper.getDsRegionByParentId(parentId); this.gridCArea.DataSource =this.FDs.Tables[0].DefaultView; this.gridView1.Columns["id"].VisibleIndex = -1; this.gridView1.Columns["childCounts"].VisibleIndex = -1; this.gridView1.Columns["reg_id"].Caption = "区划编号"; this.gridView1.Columns["reg_name"].Caption = "区划名称"; this.gridView1.Columns["parent_id"].Caption = "父区划编号"; this.gridView1.Columns["reg_desc"].Caption = "区划描述"; this.gridView1.Columns["parent_id"].ImageIndex =1; this.gridView1.Columns["reg_desc"].ImageIndex = 0; RepositoryItemTextEdit textEditReg_Id = new RepositoryItemTextEdit(); textEditReg_Id.Mask.EditMask =parentId+"file://d{2,3/}"; textEditReg_Id.Mask.MaskType = DevExpress.XtraEditors.Mask.MaskType.Regular; this.gridView1.Columns["reg_id"].ColumnEdit = textEditReg_Id; this.gridView1.Columns["reg_desc"].ColumnEdit = new RepositoryItemMemoExEdit(); TreeListNode node = this.treelArea.FocusedNode.ParentNode; string fid = node==null?"0":node.GetValue("RegID").ToString().Trim(); DataSet ds = areaSetupActionHelper.getDsRegionByParentId(fid); RepositoryItemLookUpEdit lookUEParent_Id = new RepositoryItemLookUpEdit(); lookUEParent_Id.Columns.Add(new LookUpColumnInfo("reg_id", 40, "区划编号")); lookUEParent_Id.Columns.Add(new LookUpColumnInfo("reg_name", 40, "区划名称")); lookUEParent_Id.DataSource = ds.Tables[0].DefaultView; lookUEParent_Id.ValueMember = "reg_id"; lookUEParent_Id.DisplayMember = "reg_id"; this.gridView1.Columns["parent_id"].ColumnEdit = lookUEParent_Id; } /// <summary> /// gridView单元格验证的相关处理程序 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void gridView1_ValidatingEditor(object sender, DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventArgs e) { if (e.Valid == false&this.gridView1.FocusedColumn.FieldName == "reg_id") { e.ErrorText = "区划编号不合法! 应为父区划编号加2~3位数据组成!"; } if (this.gridView1.FocusedColumn.FieldName == "reg_name") { Regex reg=new Regex(@"[u4e00-u9fa5]{1,20}"); Match m=reg.Match(e.Value.ToString().Trim()); if (m.Length != e.Value.ToString().Trim().Length) { e.Valid = false; e.ErrorText = "区划名称应为汉字 长度为1至20"; } } } private void gridView1_InvalidValueException(object sender, InvalidValueExceptionEventArgs e) { if (MyDialog.Alert(" 您所填写的内容不符合规则 要放弃您刚才对此项所做的更改吗?", "您所编辑的内容不符合规则", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes) { e.ExceptionMode = ExceptionMode.Ignore; } } /// <summary> /// gridView行验证的相关处理程序 /// </summary> private void gridView1_ValidateRow(object sender, DevExpress.XtraGrid.Views.Base.ValidateRowEventArgs e) { string regid = this.gridView1.GetRowCellValue(e.RowHandle, "reg_id").ToString().Trim(); string regName = this.gridView1.GetRowCellValue(e.RowHandle, "reg_name").ToString().Trim(); if ( regid.Length < 1) { e.Valid = false; this.gridView1.SetColumnError(this.gridView1.Columns["reg_id"], "请填写区划编号!", DevExpress.XtraEditors.DXErrorProvider.ErrorType.Default); // e.ErrorText = "区划名称不能为空!"; } if (regName.Length < 1) { e.Valid = false; this.gridView1.SetColumnError(this.gridView1.Columns["reg_name"], "区划名称不能为空!", DevExpress.XtraEditors.DXErrorProvider.ErrorType.Default); } } private void gridView1_InvalidRowException(object sender, DevExpress.XtraGrid.Views.Base.InvalidRowExceptionEventArgs e) { if (e.RowHandle >= 0) { if (this.gridView1.GetRowCellValue(e.RowHandle, this.gridView1.Columns["reg_id"]).ToString().Trim() == "" || this.gridView1.GetRowCellValue(e.RowHandle, this.gridView1.Columns["reg_name"]).ToString().Trim() == "") { if (MyDialog.Alert(" 您所填写的内容不符合规则 要放弃您刚才对此项所做的更改吗?", "您所编辑的内容不符合规则", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes) { e.ExceptionMode = ExceptionMode.Ignore; } else { e.ExceptionMode = ExceptionMode.NoAction; } } } else { e.ExceptionMode = ExceptionMode.Ignore; } } 关于XtraGrid的使用(GridControl小结)来源:51编程网发布时间:2010-04-19Hits:146 DevExpress XtraGrid的使用(AspxGridControl小结)收藏 自定义焦点行的方法: gridView_bcode.FocusedRowHandle = focuseRowInt; //通过设置GridView 的FocusedRowHandle属性 view plaincopy to clipboardprint? //获取焦点行任意单元格的数据 ColumnView cv = (ColumnView)gridControl_Gongzi.FocusedView;//重新获取此ID 否则无法从表头连删获取不到id int focusedhandle = cv.FocusedRowHandle; object rowIdObj = gridView1.GetRowCellValue(focusedhandle, "id"); if (DBNull.Value != rowIdObj) { FocusedRow_id = Convert.ToInt32(rowIdObj); } //获取焦点行任意单元格的数据 ColumnView cv = (ColumnView)gridControl_Gongzi.FocusedView;//重新获取此ID 否则无法从表头连删获取不到id int focusedhandle = cv.FocusedRowHandle; object rowIdObj = gridView1.GetRowCellValue(focusedhandle, "id"); if (DBNull.Value != rowIdObj) { FocusedRow_id = Convert.ToInt32(rowIdObj); } view plaincopy to clipboardprint? //当数据发生变化时执行 private void gridView1_CellValueChanged(object sender, CellValueChangedEventArgs e) { int intRowHandle = e.RowHandle; FocusedRow_bumen = Convert.ToString(gridView1.GetRowCellValue(intRowHandle, "bumen")); FocusedRow_xingming = Convert.ToString(gridView1.GetRowCellValue(intRowHandle, "xingming")); //FocusedRow_jibengongzi = Convert.ToDecimal(gridView1.GetRowCellValue(intRowHandle, "jibengongzi")); object rowJibengongziObj = gridView1.GetRowCellValue(intRowHandle, "jibengongzi"); if (DBNull.Value != rowJibengongziObj) { FocusedRow_jibengongzi = Convert.ToDecimal(rowJibengongziObj); } } //当数据发生变化时执行 private void gridView1_CellValueChanged(object sender, CellValueChangedEventArgs e) { int intRowHandle = e.RowHandle; FocusedRow_bumen = Convert.ToString(gridView1.GetRowCellValue(intRowHandle, "bumen")); FocusedRow_xingming = Convert.ToString(gridView1.GetRowCellValue(intRowHandle, "xingming")); //FocusedRow_jibengongzi = Convert.ToDecimal(gridView1.GetRowCellValue(intRowHandle, "jibengongzi")); object rowJibengongziObj = gridView1.GetRowCellValue(intRowHandle, "jibengongzi"); if (DBNull.Value != rowJibengongziObj) { FocusedRow_jibengongzi = Convert.ToDecimal(rowJibengongziObj); } } view plaincopy to clipboardprint? //设置焦点行的焦点单元格的位置 ColumnView view = (ColumnView)gridControl_Gongzi.FocusedView; view.FocusedColumn = view.Columns["bumen"]; //设置焦点行的焦点单元格的位置 ColumnView view = (ColumnView)gridControl_Gongzi.FocusedView; view.FocusedColumn = view.Columns["bumen"]; view plaincopy to clipboardprint? //当焦点行发生改变时执行获取选中焦点行id private void gridView1_FocusedRowChanged(object sender, DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventArgs e) { int intRowHandle = e.FocusedRowHandle; object rowIdObj = gridView1.GetRowCellValue(intRowHandle, "id"); if (DBNull.Value != rowIdObj)//做个判断否则获取不到id后报错 { FocusedRow_id = Convert.ToInt32(rowIdObj); } } //当焦点行发生改变时执行 获取选中焦点行id private void gridView1_FocusedRowChanged(object sender, DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventArgs e) { int intRowHandle = e.FocusedRowHandle; object rowIdObj = gridView1.GetRowCellValue(intRowHandle, "id"); if (DBNull.Value != rowIdObj)//做个判断否则获取不到id后报错 { FocusedRow_id = Convert.ToInt32(rowIdObj); } } view plaincopy to clipboardprint? //焦点行的FocusedHandle为: FocuseRow_Handle = -999998; //获取焦点行的handle ColumnView newview = (ColumnView)gridControl_Gongzi.FocusedView; FocuseRow_Handle = newview.FocusedRowHandle; //回车添加新行 private void gridView1_KeyPress(object sender, KeyPressEventArgs e) { if (e.KeyChar == 13) { ColumnView view = (ColumnView)gridControl_Gongzi.FocusedView; if(view.IsLastRow) { if (FocuseRow_Handle == 0) { gridView1.AddNewRow(); ColumnView newview = (ColumnView)gridControl_Gongzi.FocusedView; newview.FocusedColumn = newview.Columns["bumen"];//定位焦点网格的位置 FocuseRow_Handle = newview.FocusedRowHandle;//获取新焦点行的FocuseRowHandle 并初始化全局变量FocuseRow_Handle供保存操作时判断是update还是insert
C#中GridView格式化字符串,其实就是使用DataFromatString的方法,那么现在就向你介绍具体的内容和实现的实例应用,希望对你有所帮助。
在我们从业务逻辑层获得数据实体时候,接下来的事情就是要绑定到控件中。数据实体中的一些字段可以直接绑定到界面中,但是有一些字段需要重新格式化格式。比如货币单位字段,需要显示货币符号和每隔三位显示分隔符;再比如日期字段,数据库中存放的是日期和时间,但是在界面上需要按照XXXX年XX月XX日的格式显示。这时候我们就用到了DataFormatString属性。
﹤asp:GridView ID="grvResult" runat="server" AutoGenerateColumns="False" Width="100%"﹥ ﹤Columns﹥ ﹤asp:BoundField HeaderText="预定日期" DataField="OperationDate" DataFormatString="{ 0:yyyy-MM-dd}" HtmlEncode="False"﹥ ﹤/asp:BoundField﹥ ﹤asp:BoundField HeaderText="订单总计" DataField="TotalRate" DataFormatString="{ 0:C}" HtmlEncode="False"﹥ ﹤/asp:BoundField﹥ ﹤/Columns﹥ ﹤/asp:GridView﹥
例如上面的代码展示了日期和货币两种绑定方式。DataFormatString中的{0}是固定的格式,这和String.Fromat(“{0}”, someString)中的{0}是一个用法,表示绑定上下文的参数索引编号。然后,在后面加入C#格式化字符串,具体的使用方法可以参考MSDN。
C#中GridView格式化字符串注意以下几点
1. 在GridView中的asp:BoundField使用DataFormatString必须设置属性HtmlEncode="False",否则不起作用。
2. 如果需要使用日期类型的格式化字符串,必须数据实体中对应的字段也应该日起类型的。
3. 格式化字符串C代表货币单位,需要绑定的数据类型应该是数字类型的。如果是字符串类型的不起作用,需要手动添加格式化字符串为DataFormatString="¥{0:C}"。
C#中GridView格式化字符串的基本情况就向你介绍到这里,希望对你学习和理解C#中GridView格式化字符串有所帮助。
1、在gridview中一直对“删除”不是很理解,在ASP的模式下面,这个删除链接应该有一个行ID标识,以便程序知道删除那一行,或针对这行做一些处理,然而在ASP.net里面也可以用,但是不是最好的。 2、应该用LinkButton的各种属性,这时候非常方面,而且便于理解。这样不用选中一行(gridview.selectedRow 提供定位信息),然后再点击某种操作了。 请注意 CommandName, CommandArgument 和 LinkButton的名字 CommandArgument 的对应关系。 有了 CommandName 就知道是那个LinkButton控件。 有了 CommandArgument(和行的ID绑定),就知道要处理那一行。 swicth(CommandName) case "sort":{} case “delete”:{}
XtraGrid的CustomUnboundColumnData是让非数据绑定的列触发事件。 以便于自行处理该列的显示数据与数据源。
一、CustomUnboundColumnData事件的触发条件,否则不触发。
1.将该列的UnboundType属性设置为bound(默认值)以外的数据类型
2.为该列设置一个窗体内全局唯一的FieldName,注意这个FieldName甚至不能出现在窗体上其它XtraGrid中。
说明:如果表格中部分Unbound列指定的FieldName不唯一,那么如果还有部分Unbound列符合上述条件,那么该部分列的CustomUnboundColumnData事件会正常触发。
二、CustomUnboundColumnData使用说明。
/// <summary>
/// 非数据绑定事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void _gridView_CustomUnboundColumnData(object sender, DevExpress.XtraGrid.Views.Base.CustomColumnDataEventArgs e)
{
var data = e.Row as DataInfoShow; //行数据源
if (data == null)
return;
if (e.Column == _colModelDataType) //指定列
{
if (e.IsGetData) //绑定行指定列数据时显示文本处理
{
e.Value = modelMap.ModelDataTypeName;
}
else //指定列值改变后,同步行数据源值
{
var value = e.Value as ModelDataType;
data.ModelDataType = value.ID;
data.ModelDataTypeName = value.Name;
}
}
}