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DevExpress GridControl 使用方法技巧總結收錄整理，gridcontrol

編輯：C#入門知識

DevExpress GridControl 使用方法技巧總結收錄整理，gridcontrol

一、如何解決單擊記錄整行選中的問題

View->OptionsBehavior->EditorShowMode 設置為：Click

二、如何新增一條記錄

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

三、如何解決GridControl記錄能獲取而沒有顯示出來的問題

gridView.populateColumns();

四、如何讓行只能選擇而不能編輯（或編輯某一單元格）

(1)、View->OptionsBehavior->EditorShowMode 設置為：Click
 
(2)、View->OptionsBehavior->Editable 設置為：false

五、如何禁用GridControl中單擊列彈出右鍵菜單

設置Run Design->OptionsMenu->EnableColumnMenu 設置為：false

1、gridControl如何去掉主面板？

鼠標右鍵Run Designer=》OptionsView =》 ShowGroupPanel=False；

2、gridControl如何設置列自動寬度？

鼠標右鍵Run Designer=》OptionsView=》ColumnAutoWidth=True；

3、gridControl如何設置單元格不可編輯？

鼠標右鍵Run Designer=》OptionsBehavior 》Editable=False；

4.修改最上面的GroupPanel內容

gridView1.GroupPanelText=”盼盼”;
獲得選中了多少行？

1、如何解決單擊記錄整行選中的問題

View->OptionsBehavior->EditorShowMode 設置為：Click

2、如何新增一條記錄

(1)、gridView.AddNewRow()

(2)、實現 gridView_InitNewRow 事件

3、如何解決 GridControl 記錄能獲取而沒有顯示出來的問題

gridView.populateColumns();

4、如何讓行只能選擇而不能編輯（或編輯某一單元格）

(1)、View->OptionsBehavior->EditorShowMode 設置為：Click

(2)、View->OptionsBehavior->Editable 設置為：false

5、如何禁用 GridControl 中單擊列彈出右鍵菜單

設置 Run Design->OptionsMenu->EnableColumnMenu 設置為：false

6、如何隱藏 GridControl 的 GroupPanel 表頭

設置 Run Design->OptionsView->ShowGroupPanel 設置為：false

7、如何禁用 GridControl 中列頭的過濾器過濾器如下圖所示：

設置 Run Design->OptionsCustomization->AllowFilter 設置為：false

8、如何在查詢得到 0 條記錄時顯示自定義的字符提示/顯示如圖所示：

方法如下：

//When no Records Are Being Displayed

 

private void gridView1_CustomDrawEmptyForeground(object sender, CustomDrawEventArgs e)

 

{

 

 //方法一（此方法為GridView設置了數據源綁定時，可用）

 

 ColumnView columnView = sender as ColumnView;

 

BindingSource bindingSource = this.gridView1.DataSource as BindingSource;

 

if(bindingSource.Count == 0)

 

{

 

string str = "沒有查詢到你所想要的數據!";

 

Font f = new Font("宋體", 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（此方法為GridView沒有設置數據源綁定時，使用，一般使用此種方 法）

 

if (this._flag)

 

 { if (this.gridView1.RowCount == 0)

 

 { string str = "沒有查詢到你所想要的數據!"; Font f = new Font("宋體", 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、如何隱藏GridControl的GroupPanel表頭

設置Run Design->OptionsView->ShowGroupPanel 設置為：false

七、如何禁用GridControl中列頭的過濾器

過濾器如下圖所示：

DevExpress GridControl使用方法總結

設置 Run Design->OptionsCustomization->AllowFilter 設置為：false

八、如何在查詢得到0條記錄時顯示自定義的字符提示/顯示

如圖所示：

DevExpress GridControl使用方法總結

方法如下：

//When no Records Are Being Displayed
 private void gridView1_CustomDrawEmptyForeground(object sender, CustomDrawEventArgs e)
 {
      //方法一（此方法為GridView設置了數據源綁定時，可用）
      ColumnView columnView = sender as ColumnView;
      BindingSource bindingSource = this.gridView1.DataSource as BindingSource;
      if(bindingSource.Count == 0)
      {
           string str = "沒有查詢到你所想要的數據!";
           Font f = new Font("宋體", 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（此方法為GridView沒有設置數據源綁定時，使用，一般使用此種方法） 
      if (this._flag)
      {
           if (this.gridView1.RowCount == 0)
           {
                string str = "沒有查詢到你所想要的數據!";
                Font f = new Font("宋體", 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、如何顯示水平滾動條？

設置this.gridView.OptionsView.ColumnAutoWidth = false;

十、如何定位到第一條數據/記錄？

設置 this.gridView.MoveFirst()

十一、如何定位到下一條數據/記錄？

設置 this.gridView.MoveNext()

十二、如何定位到最後一條數據/記錄？

設置 this.gridView.MoveLast()

十三、設置成一次選擇一行，並且不能被編輯

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

十四、如何顯示行號？

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

十五、如何讓各列頭禁止移動？

設置gridView1.OptionsCustomization.AllowColumnMoving = false;

十六、如何讓各列頭禁止排序？

設置gridView1.OptionsCustomization.AllowSort = false;

十七、如何禁止各列頭改變列寬？

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

DEV控件：gridControl常用屬性設置

1.隱藏最上面的GroupPanel

gridView1.OptionsView.ShowGroupPanel=false;

2.得到當前選定記錄某字段的值

sValue=Table.Rows[gridView1.FocusedRowHandle][FieldName].ToString();

3.數據只讀

gridView1.OptionsBehavior.Editable=false;

4.不顯示MasterDetailView

gridView1.OptionsDetail.EnableMasterViewMode=false;

5.修改最上面的GroupPanel內容

gridView1.GroupPanelText="電子靈魂";

6.設置數據源:

gridControl1.DataSource = dt;
    綁定每一列的FiledName--屬性
   對於Oracle數據庫,所有的在設計器裡寫的程序中的字段名必須大寫,否則可能綁定不上字段,sqlserver沒有這個限制.

7.讀寫拷貝權限設置

只讀不可拷貝：

ColumnViewOptionsBehavior.Editable = False

只讀可拷貝:

ColumnViewOptionsBehavior.Editable = True
     OptionsColumn.AllowEdit = True
     OptionsColumn.ReadOnly = True

可編輯:

ColumnViewOptionsBehavior.Editable = True
     OptionsColumn.AllowEdit = True
     OptionsColumn.ReadOnly = False

8.模板列的設置:

到Columns中，在他的屬性中找到ColumnEdit.

以LookUpEdit為例：

首先從Designer左邊菜單In-PlaceEditor Repository中添加LookUpEdit.取名為Re1.然後.在他的Columns屬性中添加3列.Caption依次為:編號,姓名,性別.FieldName依次為:FID,FNAME,FSEX.然後將Re1的NullText設置成空.

　　AutoSearchColumnIndex屬性設置為2.ImmediatePopup屬性設置為True.

　　SearchMode設置為OnlyInPopup.

　　然後將這個模板列附加到我們上面提到的列1(也就是將列1的ColumnEdit屬性設成Re1)

　　最後我們還要在代碼裡面給Re1綁定數據源和顯示項.

Re1.DataSource =DALUse.Query("select fid,fname,fsex from dual").Tables[0];
          Re1.DisplayMember ="FSEX";
          Re1.ValueMember ="FNAME";

9.設某一列文字和標題局中顯示

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動篩選功能(Filter)
gridView1.Columns[0].OptionsFilter.AllowAutoFilter = false;
    gridView1.Columns[0].OptionsFilter.AllowFilter =false;              
    gridView1.Columns[0].OptionsFilter.ImmediateUpdateAutoFilter =false;11.設置凍結列(左凍結)
gridView1.Columns[0].Fixed= DevExpress.XtraGrid.Columns.FixedStyle.Left;12.得到單元格數據(0行0列)
string ss=gridView1.GetRowCellDisplayText(0,gridView1.Columns[0]);
    string ss = gridView1.GetRowCellValue(0, gridView1.Columns[0]);13.設置單元格數據(將0行0列的單元格賦值123)
gridView1.SetRowCellValue(0, gridView1.Columns[0],"123");13.手動添加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.設置自動增加的行號,需要先添加給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.刪除: (修改了dgvdel裡的datagridviewdel方法)

public static voiddatagridviewdel_Dev(DevExpress.XtraGrid.Views.Grid.GridView Mydgv)
     {
        if (MessageBox.Show("你確定要刪除選中的記錄嗎？", "刪除提示",MessageBoxButtons.YesNo, MessageBoxIcon.Warning, MessageBoxDefaultButton.Button2, 0, false) == DialogResult.Yes)
        {
            intiSelectRowCount = Mydgv.SelectedRowsCount;
            if(iSelectRowCount > 0)
            {
             Mydgv.DeleteSelectedRows();
            }
        }
     }

16. 新增: (對於新增,其本身的AddNewRow方法就可以做到)

private void btn_add_Click(object sender, EventArgs e)
     { 
        gridView1.AddNewRow();  
      }
     具體如果對於新加行還有什麼特別的設置,可以在它gridView1_InitNewRow事件中填寫:
     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])); //復制最後一行的數據到新行
 
           View.SetRowCellValue(e.RowHandle, View.Columns[1],gridView1.GetRowCellValue(gridView1.GetRowHandle(gridView1.RowCount - 2),gridView1.Columns[1])); //復制最後一行的數據到新行
 
    }

17. 保存 (第三方控件提供的RefreshData和RefreshDataSource方法對於保存數據都不好使,最後還是使用了Dgvsave的datagridviewsave方法,用這個方法就可以)

18.特效：gridcontrol中有5種view 型式，普通的是gridview，然後分別為cardview、BandedView、AdvancedBandedView、LayoutView；共5種。

1）、view組中把OptionView下的viewmode 設置成“Carousel”就達到這種“旋轉木馬”式的gridcontrolview 特效了

2）、layoutView1.OptionsCarouselMode.PitchAngle 這個屬性決定“旋轉木馬”的pitch angle 螺距角; 螺旋角; 螺旋升角; 俯仰角; 傾角; 節錐半角

3）、Roll Angle 屬性決定著傾側角度

4）、指定數據源，顯示數據：

//顯示數據
        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;
         }
 
        //返回圖片的字節流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.檢查數據的有效性

在gridview的ValidateRow事件中加入檢查代碼：

#region 檢查數據
  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"], "必須指定日期");
   }
 
  }
   #endregion

調用gridview.UpdateCurrentRow()方法執行檢查

最常用的DevExpress Winform 4個代碼片段：

一、GridControl的刪除操作

private void rILinkEditInfoDel_Click(object sender, EventArgs e)
 {
      if (XtraMessageBox.Show("請確定是否刪除當前記錄？", "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、綁定非數據表中列

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>
 /// 由資源文件獲取圖片
/// </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>
 /// 動態根據條件設置行樣式
/// </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 中顏色選擇控件

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、關於 GridControl 驗證示例

/**//// <summary>
 /// 初始化GridView，綁定數據
/// </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 ="區劃編號";
     this.gridView1.Columns["reg_name"].Caption ="區劃名稱";
     this.gridView1.Columns["parent_id"].Caption ="父區劃編號";
     this.gridView1.Columns["reg_desc"].Caption ="區劃描述";
     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, "區劃編號"));
     lookUEParent_Id.Columns.Add(newLookUpColumnInfo("reg_name", 40, "區劃名稱"));
     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單元格驗證的相關處理程序
/// </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 = "區劃編號不合法！\n應為父區劃編號加2～3位數據組成！";  
     }
     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 = "區劃名稱應為漢字\n長度為1至20";
      }
     }
 }
 
private void gridView1_InvalidValueException(objectsender, InvalidValueExceptionEventArgs e)
 {
     if (MyDialog.Alert("　您所填寫的內容不符合規則\n　要放棄您剛才對此項所做的更改嗎？", "您所編輯的內容不符合規則", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) ==DialogResult.Yes)
     {
      e.ExceptionMode = ExceptionMode.Ignore;
     }
 }

/**//// <summary>
 /// gridView行驗證的相關處理程序
/// </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"],"請填寫區劃編號!",DevExpress.XtraEditors.DXErrorProvider.ErrorType.Default);
       // e.ErrorText = "區劃名稱不能為空!";
     }
     if (regName.Length < 1)
     {
      e.Valid = false;
     this.gridView1.SetColumnError(this.gridView1.Columns["reg_name"],"區劃名稱不能為空!",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(" 　您所填寫的內容不符合規則\n　要放棄您剛才對此項所做的更改嗎？","您所編輯的內容不符合規則", MessageBoxButtons.YesNo,MessageBoxIcon.Warning) == DialogResult.Yes)
       {
        e.ExceptionMode = ExceptionMode.Ignore;
       }
       else
       {
        e.ExceptionMode = ExceptionMode.NoAction;
       }
      }
     }
     else
     {
      e.ExceptionMode = ExceptionMode.Ignore;
     }
 }

view plaincopy to clipboardprint?
 //獲取焦點行任意單元格的數據   
ColumnView cv = (ColumnView)gridControl_Gongzi.FocusedView;//重新獲取此ID 否則無法從表頭連刪獲取不到id  
                        int focusedhandle = cv.FocusedRowHandle;  
                        object rowIdObj = gridView1.GetRowCellValue(focusedhandle,"id");  
                        if (DBNull.Value != rowIdObj)  
                        {  
                            FocusedRow_id = Convert.ToInt32(rowIdObj);  
                        } 
 //獲取焦點行任意單元格的數據
ColumnView cv = (ColumnView)gridControl_Gongzi.FocusedView;//重新獲取此ID 否則無法從表頭連刪獲取不到id
                        int focusedhandle = cv.FocusedRowHandle;
                        object rowIdObj = gridView1.GetRowCellValue(focusedhandle, "id");
                        if (DBNull.Value != rowIdObj)
                        {
                            FocusedRow_id = Convert.ToInt32(rowIdObj);
                        }
  view plaincopy to clipboardprint?
 //當數據發生變化時執行   
      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);  
          }  
       } 
    //當數據發生變化時執行
        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?
 //設置焦點行的焦點單元格的位置  
ColumnView view = (ColumnView)gridControl_Gongzi.FocusedView;  
 view.FocusedColumn = view.Columns["bumen"]; 
 //設置焦點行的焦點單元格的位置
ColumnView view = (ColumnView)gridControl_Gongzi.FocusedView;
 view.FocusedColumn = view.Columns["bumen"]; view plaincopy toclipboardprint?
 //當焦點行發生改變時執行 獲取選中焦點行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)//做個判斷否則獲取不到id後報錯 
            {  
               FocusedRow_id = Convert.ToInt32(rowIdObj);  
            }  
        } 
  //當焦點行發生改變時執行 獲取選中焦點行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)//做個判斷否則獲取不到id後報錯
            {
                FocusedRow_id = Convert.ToInt32(rowIdObj);
             }
         }  
   
  view plaincopy to clipboardprint?
 //焦點行的FocusedHandle為： 
  FocuseRow_Handle = -999998;  
 //獲取焦點行的handle  
 ColumnView newview = (ColumnView)gridControl_Gongzi.FocusedView;  
    
                        FocuseRow_Handle = newview.FocusedRowHandle;  
 //回車添加新行  
   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"];//定位焦點網格的位置  
                            
                        FocuseRow_Handle = newview.FocusedRowHandle;//獲取新焦點行的FocuseRowHandle並初始化全局變量FocuseRow_Handle供保存操作時判斷是update還是insert

9、如何顯示水平滾動條？或

設置 this.gridView.OptionsView.ColumnAutoWidth = false;

.....列表寬度自適應內容

gridview1.BestFitColumns();

10、如何定位到第一條數據/記錄？

設置 this.gridView.MoveFirst()

11、如何定位到下一條數據/記錄？
設置 this.gridView.MoveNext()

12、如何定位到最後一條數據/記錄？

設置 this.gridView.MoveLast()

13、設置成一次選擇一行，並且不能被編輯

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

14、如何顯示行號？

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、如何讓各列頭禁止移動？

設置 gridView1.OptionsCustomization.AllowColumnMoving = false;

16、如何讓各列頭禁止排序？

設置 gridView1.OptionsCustomization.AllowSort = false;

17、如何禁止各列頭改變列寬？

設置 gridView1.OptionsCustomization.AllowColumnResizing = false;

18.拖動滾動條時固定某一列

設置Columns，選擇要固定的列。設置Fixed屬性，可以選擇：固定在左邊、固定在右邊、不固定。

19.獲取選定行,指定列單元格的內容

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

20.分組顯示

OptionsView>OptionsBehavior>AutoExpandAllGroups = True
選擇要分組的列，將GroupIndex屬性設置為0

21.格式化數據

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 = "合格數量必須為大於等於0小於等於接貨數量的整數！";
                }
                else
                {
                    if (int.Parse(passQty) > receiveQty)
                    {
                        e.Valid = false;
                        e.ErrorText = "合格數量必須為大於0小於等於接貨數量的整數！";
                    }
                }
            }

 

}

22.合並表頭

///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是表格上的默認視圖，注意這裡聲明的是：BandedGridView
            BandedGridView view = advBandedGridView1 as BandedGridView;
            view.BeginUpdate(); //開始視圖的編輯，防止觸發其他事件
            view.BeginDataUpdate(); //開始數據的編輯
            view.Bands.Clear();


 

            view.OptionsView.ShowColumnHeaders = false;                         //因為有Band列了，所以把ColumnHeader隱藏
            //添加列標題
      //添加列標題
            GridBand bandID = view.Bands.AddBand("ID");
            bandID.Visible = false; //隱藏ID列
            GridBand bandName = view.Bands.AddBand("姓名");
            GridBand bandSex = view.Bands.AddBand("性別");
            GridBand bandBirth = view.Bands.AddBand("出生日期");
            GridBand bandScore = view.Bands.AddBand("分數");
            GridBand bandMath = bandScore.Children.AddBand("數學");
            GridBand bandChinese = bandScore.Children.AddBand("語文");
            GridBand bandEnglish = bandScore.Children.AddBand("英語");
            GridBand bandSubTotal = bandScore.Children.AddBand("小計");
            GridBand bandRemark = view.Bands.AddBand("備注");

 

            bandFile.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;//這是合並表頭居中顯示
            view.EndDataUpdate();//結束數據的編輯
            view.EndUpdate();   //結束視圖的編輯
        }

具體可看

dev gridcontrol 合並表頭

23. //動態添加列

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。設置自動增加的行號

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種view 型式，普通的是gridview，然後分別為cardview、BandedView、Advanced BandedView、LayoutView；共5種。

1）、view組中把OptionView下的viewmode 設置成“Carousel”就達到這種“旋轉木馬”式的gridcontrol view 特效了
2）、layoutView1.OptionsCarouselMode.PitchAngle 這個屬性決定“旋轉木馬”的pitch angle 螺距角; 螺旋角; 螺旋升角; 俯仰角; 傾角; 節錐半角
3）、Roll Angle 屬性決定著傾側角度
4）、指定數據源，顯示數據：

//顯示數據
        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;
        }

        //返回圖片的字節流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.檢查數據的有效性

在gridview的ValidateRow事件中加入檢查代碼：

#region 檢查數據
  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"], "必須指定日期");
  }

  }

27.設某一列文字和標題局中顯示

gridView1.Columns[0].AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
   gridView1.Columns[0].AppearanceCell.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;

28.列表過濾條件多選

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

29.隔行換色的方法

this.gridView1.Appearance.OddRow.BackColor = Color.White;  // 設置奇數行顏色 // 默認也是白色 可以省略 
this.gridView1.OptionsView.EnableAppearanceOddRow = true;   // 使能 // 和和上面綁定 同時使用有效 
this.gridView1.Appearance.EvenRow.BackColor = Color.WhiteSmoke; // 設置偶數行顏色 
this.gridView1.OptionsView.EnableAppearanceEvenRow = true;   // 使能 // 和和上面綁定 同時使用有效