DEV控件：gridControl常用属性设置

技术2022-05-13 12

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+"//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！/n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/n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/n　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/n　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

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