你的位置:首页 > ASP.net教程

[ASP.net教程]DevExpress GridControl 使用方法技巧 总结 收录整理


一、如何解决单击记录整行选中的问题

View->OptionsBehavior->EditorShowMode 设置为:Click

二、如何新增一条记录

(1)、gridView.AddNewRow() (2)、实现gridView_InitNewRow事件

三、如何解决GridControl记录能获取而没有显示出来的问题

gridView.populateColumns();

四、如何让行只能选择而不能编辑(或编辑某一单元格)

(1)、View->OptionsBehavior->EditorShowMode 设置为:Click (2)、View->OptionsBehavior->Editable 设置为:false

五、如何禁用GridControl中单击列弹出右键菜单

设置Run Design->OptionsMenu->EnableColumnMenu 设置为:false

1、gridControl如何去掉主面板?

鼠标右键Run Designer=》OptionsView =》 ShowGroupPanel=False;

2、gridControl如何设置列自动宽度?

鼠标右键Run Designer=》OptionsView=》ColumnAutoWidth=True;

3、gridControl如何设置单元格不可编辑?

鼠标右键Run Designer=》OptionsBehavior 》Editable=False;

4.修改最上面的GroupPanel内容

gridView1.GroupPanelText=”盼盼”;
获得选中了多少行?

1、 如何解决单击记录整行选中的问题

View->OptionsBehavior->EditorShowMode 设置为:Click

2、 如何新增一条记录

(1)、gridView.AddNewRow()

(2)、实现 gridView_InitNewRow 事件

3、如何解决 GridControl 记录能获取而没有显示出来的问题

gridView.populateColumns();

4、如何让行只能选择而不能编辑(或编辑某一单元格)

(1)、View->OptionsBehavior->EditorShowMode 设置为:Click

(2)、View->OptionsBehavior->Editable 设置为:false

5、如何禁用 GridControl 中单击列弹出右键菜单

设置 Run Design->OptionsMenu->EnableColumnMenu 设置为:false

6、如何隐藏 GridControl 的 GroupPanel 表头

设置 Run Design->OptionsView->ShowGroupPanel 设置为:false

7、如何禁用 GridControl 中列头的过滤器 过滤器如下图所示:     

设置 Run Design->OptionsCustomization->AllowFilter 设置为:false

8、如何在查询得到 0 条记录时显示自定义的字符提示/显示 如图所示:

方法如下:

//When no Records Are Being Displayed private void gridView1_CustomDrawEmptyForeground(object sender, CustomDrawEventArgs e) { //方法一(此方法为GridView设置了数据源绑定时,可用) ColumnView columnView = sender as ColumnView; BindingSource bindingSource = this.gridView1.DataSource as BindingSource; if(bindingSource.Count == 0) { string str = "没有查询到你所想要的数据!"; Font f = new Font("宋体", 10, FontStyle.Bold); Rectangle r = new Rectangle(e.Bounds.Top + 5, e.Bounds.Left + 5, e.Bounds.Right - 5, e.Bounds.Height - 5); e.Graphics.DrawString(str, f, Brushes.Black, r); } //方法二(此方法为GridView没有设置数据源绑定时,使用,一般使用此种方 法) if (this._flag) { if (this.gridView1.RowCount == 0) { string str = "没有查询到你所想要的数据!"; Font f = new Font("宋体", 10, FontStyle.Bold); Rectangle r = new Rectangle(e.Bounds.Left + 5, e.Bounds.Top + 5, e.Bounds.Width - 5, e.Bounds.Height - 5); e.Graphics.DrawString(str, f, Brushes.Black, r); } } }

六、如何隐藏GridControl的GroupPanel表头

设置Run Design->OptionsView->ShowGroupPanel 设置为:false

七、如何禁用GridControl中列头的过滤器

过滤器如下图所示:

DevExpress GridControl使用方法总结

设置 Run Design->OptionsCustomization->AllowFilter 设置为:false

八、如何在查询得到0条记录时显示自定义的字符提示/显示

如图所示:

DevExpress GridControl使用方法总结

方法如下:

//When no Records Are Being Displayed private void gridView1_CustomDrawEmptyForeground(object sender, CustomDrawEventArgs e) {   //方法一(此方法为GridView设置了数据源绑定时,可用)   ColumnView columnView = sender as ColumnView;   BindingSource bindingSource = this.gridView1.DataSource as BindingSource;   if(bindingSource.Count == 0)   {      string str = "没有查询到你所想要的数据!";      Font f = new Font("宋体", 10, FontStyle.Bold);      Rectangle r = new Rectangle(e.Bounds.Top + 5, e.Bounds.Left + 5, e.Bounds.Right - 5, e.Bounds.Height - 5);      e.Graphics.DrawString(str, f, Brushes.Black, r);   }   //方法二(此方法为GridView没有设置数据源绑定时,使用,一般使用此种方法)    if (this._flag)   {      if (this.gridView1.RowCount == 0)      {        string str = "没有查询到你所想要的数据!";        Font f = new Font("宋体", 10, FontStyle.Bold);        Rectangle r = new Rectangle(e.Bounds.Left + 5, e.Bounds.Top + 5, e.Bounds.Width - 5, e.Bounds.Height - 5);        e.Graphics.DrawString(str, f, Brushes.Black, r);      }   } }

九、如何显示水平滚动条?
设置this.gridView.OptionsView.ColumnAutoWidth = false;

十、如何定位到第一条数据/记录?
设置 this.gridView.MoveFirst()

十一、如何定位到下一条数据/记录?

设置 this.gridView.MoveNext()

十二、如何定位到最后一条数据/记录?

设置 this.gridView.MoveLast()

十三、设置成一次选择一行,并且不能被编辑

this.gridView1.FocusRectStyle = DevExpress.XtraGrid.Views.Grid.DrawFocusRectStyle.RowFocus; this.gridView1.OptionsBehavior.Editable = false; this.gridView1.OptionsSelection.EnableAppearanceFocusedCell = false;

十四、如何显示行号?

 

this.gridView1.IndicatorWidth = 40; //显示行的序号private void gridView1_CustomDrawRowIndicator(object sender, RowIndicatorCustomDrawEventArgs e) {   if (e.Info.IsRowIndicator && e.RowHandle>=0)   {      e.Info.DisplayText = (e.RowHandle + 1).ToString();   } }

十五、如何让各列头禁止移动?

设置gridView1.OptionsCustomization.AllowColumnMoving = false;

十六、如何让各列头禁止排序?

设置gridView1.OptionsCustomization.AllowSort = false;

十七、如何禁止各列头改变列宽?

设置gridView1.OptionsCustomization.AllowColumnResizing = false; Normal 0 7.8 磅 0 2 false false false EN-US ZH-CN X-NONE

 

DEV控件:gridControl常用属性设置

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="电子灵魂";

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-PlaceEditor 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=newDevExpress.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(objectsender,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 voiddatagridviewdel_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)    {      intiSelectRowCount = 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、AdvancedBandedView、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gridcontrolview 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 voidshowData(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(stringimagePath)     {       FileStreamfiles = new FileStream(imagePath, FileMode.Open);       byte[]imgByte = new byte [files.Length ];      files.Read(imgByte, 0, imgByte.Length);      files.Close();       returnimgByte;    }

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, ValidateRowEventArgse)  {  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.CustomColumnDataEventArgse) {   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"]));       objectMinValue = View.GetRowCellValue(e.RowHandle,View.Columns["MinValue"]);       objectMaxVlaue = 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);   returnDevExpress.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"]));       objectMinValue = View.GetRowCellValue(e.RowHandle,View.Columns["MinValue"]);       objectMaxVlaue = 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 = newRepositoryItemTextEdit();   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 = newRepositoryItemLookUpEdit();   lookUEParent_Id.Columns.Add(newLookUpColumnInfo("reg_id", 40, "区划编号"));   lookUEParent_Id.Columns.Add(newLookUpColumnInfo("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(objectsender, 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(objectsender, 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(objectsender, 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;   } }

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 voidgridView1_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"));       objectrowJibengongziObj = gridView1.GetRowCellValue(intRowHandle,"jibengongzi");       if(DBNull.Value != rowJibengongziObj)       {        FocusedRow_jibengongzi = Convert.ToDecimal(rowJibengongziObj);       }     } view plaincopy toclipboardprint? //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 toclipboardprint? //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.FocusedRowChangedEventArgse)     {       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)     {       intintRowHandle = e.FocusedRowHandle;        objectrowIdObj = 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, KeyPressEventArgse)            {        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

9、如何显示水平滚动条?或

设置 this.gridView.OptionsView.ColumnAutoWidth = false;

.....列表宽度自适应内容

gridview1.BestFitColumns();

10、如何定位到第一条数据/记录?

设置 this.gridView.MoveFirst()

11、如何定位到下一条数据/记录?
设置 this.gridView.MoveNext()

12、如何定位到最后一条数据/记录?

设置 this.gridView.MoveLast()

13、设置成一次选择一行,并且不能被编辑

this.gridView1.FocusRectStyle = DevExpress.XtraGrid.Views.Grid.DrawFocusRectStyle.RowFocus;this.gridView1.OptionsBehavior.Editable = false;this.gridView1.OptionsSelection.EnableAppearanceFocusedCell = false;

14、如何显示行号?

private void gvPayList_CustomDrawRowIndicator(object sender, DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs e)    {      e.Appearance.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Far;      if (e.Info.IsRowIndicator)      {        if (e.RowHandle >= 0)        {          e.Info.DisplayText = (e.RowHandle + 1).ToString();        }        else if (e.RowHandle < 0 && e.RowHandle > -1000)        {          e.Info.Appearance.BackColor = System.Drawing.Color.AntiqueWhite;          e.Info.DisplayText = "G" + e.RowHandle.ToString();        }      }    }

15、如何让各列头禁止移动?

设置 gridView1.OptionsCustomization.AllowColumnMoving = false;

16、如何让各列头禁止排序?

设置 gridView1.OptionsCustomization.AllowSort = false;

17、如何禁止各列头改变列宽?

设置 gridView1.OptionsCustomization.AllowColumnResizing = false;

18.拖动滚动条时固定某一列

设置Columns,选择要固定的列。设置Fixed属性,可以选择:固定在左边、固定在右边、不固定。

19.获取选定行,指定列单元格的内容

return gridView1.GetRowCellValue(pRows[0], ColumName).ToString ();

20.分组显示

OptionsView>OptionsBehavior>AutoExpandAllGroups = True
选择要分组的列,将GroupIndex属性设置为0

21.格式化数据

private void gvList_ValidatingEditor(object sender, DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventArgs e)    {      if (this.gvList.FocusedColumn.FieldName == "passQty")      {        string passQty = e.Value.ToString().Trim();        int receiveQty = orderDetailList[this.gvList.FocusedRowHandle].qty;        if (!JXType.IsIntBigThanZero(passQty))        {          e.Valid = false;          e.ErrorText = "合格数量必须为大于等于0小于等于接货数量的整数!";        }        else        {          if (int.Parse(passQty) > receiveQty)          {            e.Valid = false;            e.ErrorText = "合格数量必须为大于0小于等于接货数量的整数!";          }        }      } }

22.合并表头
///初始化表格 using DevExpress.XtraGrid.Columns;using DevExpress.XtraGrid.Views.Base;using DevExpress.XtraGrid.Views.BandedGrid;using DevExpress.XtraEditors.Repository;    private void InitGrid()    {      // advBandedGridView1是表格上的默认视图,注意这里声明的是:BandedGridView      BandedGridView view = advBandedGridView1 as BandedGridView;      view.BeginUpdate(); //开始视图的编辑,防止触发其他事件      view.BeginDataUpdate(); //开始数据的编辑      view.Bands.Clear();       view.OptionsView.ShowColumnHeaders = false;             //因为有Band列了,所以把ColumnHeader隐藏      //添加列标题   //添加列标题      GridBand bandID = view.Bands.AddBand("ID");      bandID.Visible = false; //隐藏ID列      GridBand bandName = view.Bands.AddBand("姓名");      GridBand bandSex = view.Bands.AddBand("性别");      GridBand bandBirth = view.Bands.AddBand("出生日期");      GridBand bandScore = view.Bands.AddBand("分数");      GridBand bandMath = bandScore.Children.AddBand("数学");      GridBand bandChinese = bandScore.Children.AddBand("语文");      GridBand bandEnglish = bandScore.Children.AddBand("英语");      GridBand bandSubTotal = bandScore.Children.AddBand("小计");      GridBand bandRemark = view.Bands.AddBand("备注");       bandFile.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;//这是合并表头居中显示      view.EndDataUpdate();//结束数据的编辑      view.EndUpdate();  //结束视图的编辑    }

具体可看 

dev gridcontrol 合并表头

23.   //动态添加列

DevExpress.XtraGrid.Columns.GridColumn Col1 = new DevExpress.XtraGrid.Columns.GridColumn();      Col1.FieldName = "name";      Col1.Caption = "名字";      Col1.Visible = false;      Col1.VisibleIndex = gvCountry.Columns.Count;      gvCountry.Columns.Add(Col1);

24。设置自动增加的行号
private void gridview_CustomDrawRowIndicator(object sender,DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs e)  {e.Appearance.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Far;      if (e.Info.IsRowIndicator)      {        if (e.RowHandle >= 0)        {          e.Info.DisplayText = (e.RowHandle + 1).ToString();        }        else if (e.RowHandle < 0 && e.RowHandle > -1000)        {          e.Info.Appearance.BackColor = System.Drawing.Color.AntiqueWhite;          e.Info.DisplayText = "G" + e.RowHandle.ToString();        }      }}

25.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;    }

26.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"); } }

27.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;

28.列表过滤条件多选

列名.OptionsFilter.FilterPopupMode= DevExpress.XtraGrid.Columns.FilterPopupMode.CheckedList

29.隔行换色的方法

this.gridView1.Appearance.OddRow.BackColor = Color.White; // 设置奇数行颜色 // 默认也是白色 可以省略 this.gridView1.OptionsView.EnableAppearanceOddRow = true;  // 使能 // 和和上面绑定 同时使用有效 this.gridView1.Appearance.EvenRow.BackColor = Color.WhiteSmoke; // 设置偶数行颜色 this.gridView1.OptionsView.EnableAppearanceEvenRow = true;  // 使能 // 和和上面绑定 同时使用有效