GridView中經常使用屬性的設置

1.隱藏最上面的GroupPanel：

  gridView1.OptionsView.ShowGroupPanel=false; 

2.獲得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="柳生飄絮";  

6.設置數據源:

   gridControl1.DataSource = dt;

   綁定每一列的FiledName--屬性

   對於Oracle數據庫,全部的在設計器裏寫的程序中的字段名必須大寫,不然可能綁定不上字段,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爲例：

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

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

　　SearchMode設置爲OnlyInPopup.

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

　　最後咱們還要在代碼裏面給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.獲得單元格數據(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=new DevExpress.XtraGrid.Columns.GridColumn ();

  Col1.FieldName="FID";

  Col1.Visible=true;

  Col1.VisibleIndex=gridView1.Columns.Count;

  gridView1.Columns.Add(Col1);  

14.設置自動增長的行號,須要先添加給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.刪除: (修改了dgvdel裏的datagridviewdel方法)

    public static void datagridviewdel_Dev(DevExpress.XtraGrid.Views.Grid.GridView Mydgv)

    {

       if (MessageBox.Show("你肯定要刪除選中的記錄嗎？", "刪除提示", MessageBoxButtons.YesNo,               MessageBoxIcon.Warning, MessageBoxDefaultButton.Button2, 0, false) == DialogResult.Yes)

       {

           int iSelectRowCount = Mydgv.SelectedRowsCount;

           if (iSelectRowCount > 0)

           {

             Mydgv.DeleteSelectedRows();

           }

       }

    }   

16. 新增: (對於新增,其自己的AddNewRow方法就能夠作到):

    private void btn_add_Click(object sender, EventArgs e)

    {  

       gridView1.AddNewRow();   

     }

    具體若是對於新加行還有什麼特別的設置,能夠在它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])); //複製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])); //複製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很差使,最後仍是使用了Dgvsave的datagridviewsave方法,用這個方法就能夠)  

18.特效：gridcontrol中有5種view 型式，普通的是gridview，而後分別爲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 屬性決定着傾側角度

  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;

        }  

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, 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");

  }  

  }

  #endregion

  調用gridview.UpdateCurrentRow()方法執行檢查

  

最經常使用的DevExpress Winform 4個代碼片斷：  

一 、GridControl的刪除操做  

private void rILinkEditInfoDel_Click(object sender, EventArgs e)

{

     if (XtraMessageBox.Show("請肯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("操做成功！");

     }

}  

2、綁定非數據表中列

  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);

     return DevExpress.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"]));

             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;

                 }

             }

         }

     }

}

  

3、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());

     }

}

  

4、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 = 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, "區劃編號"));

    lookUEParent_Id.Columns.Add(new LookUpColumnInfo("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(object sender, 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應爲父區劃編號加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 = "區劃名稱應爲漢字\n長度爲1至20";

     }

    }

}

  

private void gridView1_InvalidValueException(object sender, InvalidValueExceptionEventArgs e)

{

    if (MyDialog.Alert("　您所填寫的內容不符合規則\n　要放棄您剛纔對此項所作的更改嗎？", "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(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"], "請填寫區劃編號!", DevExpress.XtraEditors.DXErrorProvider.ErrorType.Default);

      // e.ErrorText = "區劃名稱不能爲空!";

    }

    if (regName.Length < 1)

    {

     e.Valid = false;

     this.gridView1.SetColumnError(this.gridView1.Columns["reg_name"], "區劃名稱不能爲空!", 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　要放棄您剛纔對此項所作的更改嗎？", "您所編輯的內容不符合規則", MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)

      {