• DevExpress GridControl使用方法


    原文地址:http://www.cnblogs.com/zeroone/p/3525423.html

    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
     
    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
     
    2011-01-19 09:50
     
    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-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! 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(objectsender, 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(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  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 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 
  • 相关阅读:
    HDU 2896 病毒侵袭 AC自动机
    AC自动机
    BZOJ2337: [HNOI2011]XOR和路径 期望概率dp 高斯
    BZOJ4008. [HNOI2015]亚瑟王 期望概率dp
    BZOJ 2707: [SDOI2012]走迷宫 拓扑+高斯消元+期望概率dp+Tarjan
    CodeForces743E. Vladik and cards 二分+状压dp
    BZOJ 3270 博物馆 && CodeForces 113D. Museum 期望概率dp 高斯消元
    BZOJ1415: [Noi2005]聪聪和可可 最短路 期望概率dp
    CodeForces 167B
    [HEOI2017]分手是祝愿 期望概率dp 差分
  • 原文地址:https://www.cnblogs.com/eastson/p/3833990.html
Copyright © 2020-2023  润新知