DEV控件:gridControl常用属性设置


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= "柳生飘絮" ;
  
6.设置数据源:
    gridControl1.DataSource = dt;
    绑定每一列的FiledName--属性
    对于Oracle数据库,所有的在设计器里写的程序中的字段名必须大写,否则可能绑定不上字段,sqlserver没有这个限制.
  
7.读写拷贝权限设置
   只读不可拷贝:
     ColumnViewOptionsBehavior.Editable = False
  
   只读可拷贝:
     ColumnViewOptionsBehavior.Editable = True
     OptionsColumn.AllowEdit = True
     OptionsColumn.ReadOnly = True
  
   可编辑:
     ColumnViewOptionsBehavior.Editable = True
     OptionsColumn.AllowEdit = True
     OptionsColumn.ReadOnly = False
  
8.模板列的设置:
   到Columns中,在他的属性中找到ColumnEdit.
   以LookUpEdit为例:
   首先从Designer左边菜单In-Place Editor Repository中添加LookUpEdit.取名为Re1.然后.在他的Columns属性中添加3列.Caption依次为:编号,姓名,性别.FieldName依次为:FID,FNAME,FSEX.然后将Re1的NullText设置成空.
  AutoSearchColumnIndex属性设置为2.ImmediatePopup属性设置为True.
  SearchMode设置为OnlyInPopup.
  然后将这个模板列附加到我们上面提到的列1(也就是将列1的ColumnEdit属性设成Re1)
  最后我们还要在代码里面给Re1绑定数据源和显示项.
          Re1.DataSource = DALUse.Query( "select fid,fname,fsex from dual" ).Tables[0];
          Re1.DisplayMember = "FSEX" ;
          Re1.ValueMember = "FNAME" ;
  
  
  
9.设某一列文字和标题局中显示                  
    gridView1.Columns[0].AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
    gridView1.Columns[0].AppearanceCell.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
  
   
10.去掉某一列上面的自动筛选功能(Filter)                  
    gridView1.Columns[0].OptionsFilter.AllowAutoFilter = false ;
    gridView1.Columns[0].OptionsFilter.AllowFilter = false ;                
    gridView1.Columns[0].OptionsFilter.ImmediateUpdateAutoFilter = false ;
  
   
11.设置冻结列(左冻结)
   gridView1.Columns[0].Fixed= DevExpress.XtraGrid.Columns.FixedStyle.Left;
  
   
12.得到单元格数据(0行0列)
    string ss=gridView1.GetRowCellDisplayText(0, gridView1.Columns[0]);
    string ss = gridView1.GetRowCellValue(0, gridView1.Columns[0]);
  
   
13.设置单元格数据(将0行0列的单元格赋值123)
    gridView1.SetRowCellValue(0, gridView1.Columns[0], "123" );
  
   
13.手动添加dev的列
   DevExpress.XtraGrid.Columns.GridColumn Col1= new DevExpress.XtraGrid.Columns.GridColumn ();
   Col1.FieldName= "FID" ;
   Col1.Visible= true ;
   Col1.VisibleIndex=gridView1.Columns.Count;
   gridView1.Columns.Add(Col1);
  
  
14.设置自动增加的行号,需要先添加给gridview添加事件CustomDrawRowIndicator
  
     private void gridview_CustomDrawRowIndicator( object sender,                            DevExpress.XtraGrid.Views.Grid.RowIndicatorCustomDrawEventArgs e)
     {
         if (e.Info.IsRowIndicator && e.RowHandle >= 0)
                 e.Info.DisplayText = (e.RowHandle + 1).ToString();
     }
  
15.删除: (修改了dgvdel里的datagridviewdel方法)
     public static void datagridviewdel_Dev(DevExpress.XtraGrid.Views.Grid.GridView Mydgv)
     {
        if (MessageBox.Show( "你确定要删除选中的记录吗?" , "删除提示" , MessageBoxButtons.YesNo,               MessageBoxIcon.Warning, MessageBoxDefaultButton.Button2, 0, false ) == DialogResult.Yes)
        {
            int iSelectRowCount = Mydgv.SelectedRowsCount;
            if (iSelectRowCount > 0)
            {
              Mydgv.DeleteSelectedRows();
            }
        }
     }
   
16. 新增: (对于新增,其本身的AddNewRow方法就可以做到)
     private void btn_add_Click( object sender, EventArgs e)
     {  
        gridView1.AddNewRow();   
      }
     具体如果对于新加行还有什么特别的设置,可以在它gridView1_InitNewRow事件中填写:
     private void gridView1_InitNewRow( object sender, DevExpress.XtraGrid.Views.Grid.InitNewRowEventArgs e)
     {
        ColumnView View = sender as ColumnView;
        View.SetRowCellValue(e.RowHandle, View.Columns[0], gridView1.GetRowCellValue(gridView1.GetRowHandle(gridView1.RowCount - 2), gridView1.Columns[0])); //复制最后一行的数据到新行
  
             View.SetRowCellValue(e.RowHandle, View.Columns[1], gridView1.GetRowCellValue(gridView1.GetRowHandle(gridView1.RowCount - 2), gridView1.Columns[1])); //复制最后一行的数据到新行
  
     }
  
   
17. 保存 (第三方控件提供的RefreshData和RefreshDataSource方法对于保存数据都不好使,最后还是使用了Dgvsave的datagridviewsave方法,用这个方法就可以)
  
  
18.特效:gridcontrol中有5种view 型式,普通的是gridview,然后分别为cardview、BandedView、Advanced BandedView、LayoutView;共5种。
   1)、view组中把OptionView下的viewmode 设置成“Carousel”就达到这种“旋转木马”式的gridcontrol view 特效了
   2)、layoutView1.OptionsCarouselMode.PitchAngle 这个属性决定“旋转木马”的pitch angle 螺距角; 螺旋角; 螺旋升角; 俯仰角; 倾角; 节锥半角 
   3)、Roll Angle 属性决定着 倾侧角度
   4)、指定数据源,显示数据:
   //显示数据
         private void showData(List<Employee > list)
         {
             DataTable dt = new DataTable( "OneEmployee" );
             dt.Columns.Add( "Caption" , System.Type.GetType( "System.String" ));
             dt.Columns.Add( "Department" , System.Type.GetType( "System.String" ));
             dt.Columns.Add( "PhotoName" , System.Type.GetType( "System.Byte[]" ));
  
             for ( int i = 0; i < list.Count; i++)
             {
                 DataRow dr = dt.NewRow();
                 dr[ "Caption" ] = list[i].Name;
                 dr[ "Department" ] = list[i].Department;
                 string imagePath = @"D:\C#\photos\" + list[i].PhotoPath;
                 dr[ "PhotoName" ] = getImageByte(imagePath);
                 dt.Rows.Add(dr);
             }
             gridControl1.DataSource = dt;
         }
  
         //返回图片的字节流byte[]
         private byte [] getImageByte( string imagePath)
         {
             FileStream files = new FileStream(imagePath, FileMode.Open);
             byte [] imgByte = new byte [files.Length ];
             files.Read(imgByte, 0, imgByte.Length);
             files.Close();
             return imgByte;
         }
  
19.检查数据的有效性
   在gridview的ValidateRow事件中加入检查代码:
   #region 检查数据
   private void gridView1_ValidateRow( object sender, ValidateRowEventArgs e)
   {
   GridView view = sender as GridView;
   view.ClearColumnErrors();
  
   if (view.GetRowCellValue(e.RowHandle, "ReceiveDate" ) == DBNull.Value)
   {
   e.Valid = false ;
   view.SetColumnError(view.Columns[ "ReceiveDate" ], "必须指定日期" );
   }
  
   }
   #endregion
   调用gridview.UpdateCurrentRow()方法执行检查
  
  
最常用的DevExpress Winform 4个代码片段:
  
一 、GridControl的删除操作
  
private void rILinkEditInfoDel_Click( object sender, EventArgs e)
{
      if (XtraMessageBox.Show( "请确定是否删除当前记录?" , "警告" , MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
      {
          DataRow row = gvInfos.GetDataRow(gvInfos.FocusedRowHandle);
           delByCode(row[ "Code" ].ToString());
          XtraMessageBox.Show( "操作成功!" );
      }
}
  
二、绑定非数据表中列
  
Hashtable ht = new Hashtable();
  
private void gridView6_CustomUnboundColumnData( object sender, DevExpress.XtraGrid.Views.Base.CustomColumnDataEventArgs e)
{
      GridView View = sender as GridView;
      if (e.RowHandle >= 0)
      {
          object needAlert = View.GetRowCellValue(e.RowHandle, View.Columns[ "needAlert" ]);
          if (needAlert != null & needAlert != DBNull.Value && needAlert.ToString().Trim() != "0" & View.GetRowCellValue(e.RowHandle, View.Columns[ "Value" ]) != DBNull.Value)
          {
              decimal AverValue = Convert.ToDecimal(View.GetRowCellValue(e.RowHandle, View.Columns[ "Value" ]));
              object MinValue = View.GetRowCellValue(e.RowHandle, View.Columns[ "MinValue" ]);
              object MaxVlaue = View.GetRowCellValue(e.RowHandle, View.Columns[ "MaxValue" ]);
              if (MinValue != DBNull.Value & MinValue != null & MaxVlaue.ToString() != "" & MaxVlaue != DBNull.Value && MaxVlaue != null & MaxVlaue.ToString() != "" )
              {
                  decimal gridColumn2 = Convert.ToDecimal(View.GetRowCellValue(e.RowHandle, View.Columns[ "MinValue" ]));
                  decimal gridColumn1 = Convert.ToDecimal(View.GetRowCellValue(e.RowHandle, View.Columns[ "MaxValue" ]));
                  if (gridColumn2 > AverValue || AverValue > gridColumn1)
                  {
                      if (!ht.ContainsKey( "pic" ))
                          ht.Add( "pic" , GetImage(1));
                      e.Value = ht[ "pic" ];
                  }
              }
          }
      }
}
  
/// <summary>
/// 由资源文件获取图片
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
byte [] GetImage( int key)
{
      Image img = DevExpress.Utils.Controls.ImageHelper.CreateImageFromResources( string .Format( "RiverSys.Resources.{0}.gif" , key.ToString()), typeof (RiverInfos).Assembly);
      return DevExpress.XtraEditors.Controls.ByteImageConverter.ToByteArray(img, ImageFormat.Gif);
}
  
/// <summary>
/// 动态根据条件设置行样式
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void gridView6_RowStyle( object sender, DevExpress.XtraGrid.Views.Grid.RowStyleEventArgs e)
{
      GridView View = sender as GridView;
      if (e.RowHandle >= 0)
      {
          object needAlert = View.GetRowCellValue(e.RowHandle, View.Columns[ "needAlert" ]);
          if (needAlert != null & needAlert != DBNull.Value && needAlert.ToString().Trim() != "0" & View.GetRowCellValue(e.RowHandle, View.Columns[ "Value" ]) != DBNull.Value)
          {
              decimal AverValue = Convert.ToDecimal(View.GetRowCellValue(e.RowHandle, View.Columns[ "Value" ]));
              object MinValue = View.GetRowCellValue(e.RowHandle, View.Columns[ "MinValue" ]);
              object MaxVlaue = View.GetRowCellValue(e.RowHandle, View.Columns[ "MaxValue" ]);
              if (MinValue != DBNull.Value & MinValue != null & MaxVlaue.ToString() != "" & MaxVlaue != DBNull.Value && MaxVlaue != null & MaxVlaue.ToString() != "" )
              {
                  decimal gridColumn2 = Convert.ToDecimal(MinValue);
                  decimal gridColumn1 = Convert.ToDecimal(MaxVlaue);
                  if (gridColumn2 > AverValue || AverValue > gridColumn1)
                  {
                      e.Appearance.ForeColor = Color.Red;
                      e.Appearance.BackColor = Color.LightGray;
                  }
              }
          }
      }
}
  
三、GridControl 中颜色选择控件
  
private void gvMapColor_CustomUnboundColumnData( object sender, DevExpress.XtraGrid.Views.Base.CustomColumnDataEventArgs e)
{
      GridView view = sender as GridView;
      DataView dv = view.DataSource as DataView;
      if (e.IsGetData)
      {
          string strVal = dv[e.ListSourceRowIndex][ "Color" ].ToString();
          if (strVal != "" )
          {
              //e.Value = DevExpress.Utils.StyleLayout.ColorFromString(strVal);
              e.Value = Common.HexToColor(strVal);
          }
      }
      else
      {
          //Color colorVal = DevExpress.Utils.StyleLayout.ColorFromString(e.Value.ToString());
          Color colorVal = (Color)e.Value;
          dv[e.ListSourceRowIndex][ "Color" ] = Common.RGB_HEX(colorVal.ToArgb());
      }
}
  
四、关于 GridControl 验证示例
  
/**/ /// <summary>
/// 初始化GridView,绑定数据
/// </summary>
/// <param name="parentId"></param>
private void GridViewBindData( string parentId)
{
this .gridView1.Columns.Clear();
this .FDs= areaSetupActionHelper.getDsRegionByParentId(parentId);
this .gridCArea.DataSource = this .FDs.Tables[0].DefaultView;
  
     this .gridView1.Columns[ "id" ].VisibleIndex = -1;
     this .gridView1.Columns[ "childCounts" ].VisibleIndex = -1;
  
     this .gridView1.Columns[ "reg_id" ].Caption = "区划编号" ;
     this .gridView1.Columns[ "reg_name" ].Caption = "区划名称" ;
     this .gridView1.Columns[ "parent_id" ].Caption = "父区划编号" ;
     this .gridView1.Columns[ "reg_desc" ].Caption = "区划描述" ;
     this .gridView1.Columns[ "parent_id" ].ImageIndex =1;
     this .gridView1.Columns[ "reg_desc" ].ImageIndex = 0;
  
     RepositoryItemTextEdit textEditReg_Id = new RepositoryItemTextEdit();
     textEditReg_Id.Mask.EditMask =parentId+ "\\d{2,3}" ;
     textEditReg_Id.Mask.MaskType = DevExpress.XtraEditors.Mask.MaskType.Regular;
  
     this .gridView1.Columns[ "reg_id" ].ColumnEdit = textEditReg_Id;
  
     this .gridView1.Columns[ "reg_desc" ].ColumnEdit = new RepositoryItemMemoExEdit();
  
     TreeListNode node = this .treelArea.FocusedNode.ParentNode;
     string fid = node== null ? "0" :node.GetValue( "RegID" ).ToString().Trim();
     DataSet ds = areaSetupActionHelper.getDsRegionByParentId(fid);
     RepositoryItemLookUpEdit lookUEParent_Id = new RepositoryItemLookUpEdit();
     lookUEParent_Id.Columns.Add( new LookUpColumnInfo( "reg_id" , 40, "区划编号" ));
     lookUEParent_Id.Columns.Add( new LookUpColumnInfo( "reg_name" , 40, "区划名称" ));
     lookUEParent_Id.DataSource = ds.Tables[0].DefaultView;
     lookUEParent_Id.ValueMember = "reg_id" ;
     lookUEParent_Id.DisplayMember = "reg_id" ;
     this .gridView1.Columns[ "parent_id" ].ColumnEdit = lookUEParent_Id;
}
/**/ /// <summary>
/// gridView单元格验证的相关处理程序
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void gridView1_ValidatingEditor( object sender, DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventArgs e)
{
if (e.Valid == false & this .gridView1.FocusedColumn.FieldName == "reg_id" )
{
       e.ErrorText = "区划编号不合法!\n应为父区划编号加2~3位数据组成!" ;   
     }
     if ( this .gridView1.FocusedColumn.FieldName == "reg_name" )
     {     
      Regex reg= new Regex( @"[\u4e00-\u9fa5]{1,20}" );
      Match m=reg.Match(e.Value.ToString().Trim());
      if (m.Length != e.Value.ToString().Trim().Length)
      {
       e.Valid = false ;
       e.ErrorText = "区划名称应为汉字\n长度为1至20" ;
      }
     }
}
  
private void gridView1_InvalidValueException( object sender, InvalidValueExceptionEventArgs e)
{
     if (MyDialog.Alert( " 您所填写的内容不符合规则\n 要放弃您刚才对此项所做的更改吗?" , "您所编辑的内容不符合规则" , MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
     {
      e.ExceptionMode = ExceptionMode.Ignore;
     }
}
  
/**/ /// <summary>
/// gridView行验证的相关处理程序
/// </summary>
private void gridView1_ValidateRow( object sender, DevExpress.XtraGrid.Views.Base.ValidateRowEventArgs e)
{
string regid = this .gridView1.GetRowCellValue(e.RowHandle, "reg_id" ).ToString().Trim();
string regName = this .gridView1.GetRowCellValue(e.RowHandle, "reg_name" ).ToString().Trim();
if ( regid.Length < 1)
{
      e.Valid = false ;
      this .gridView1.SetColumnError( this .gridView1.Columns[ "reg_id" ], "请填写区划编号!" , DevExpress.XtraEditors.DXErrorProvider.ErrorType.Default);
       // e.ErrorText = "区划名称不能为空!";
     }
     if (regName.Length < 1)
     {
      e.Valid = false ;
      this .gridView1.SetColumnError( this .gridView1.Columns[ "reg_name" ], "区划名称不能为空!" , DevExpress.XtraEditors.DXErrorProvider.ErrorType.Default);
     }
}
  
private void gridView1_InvalidRowException( object sender, DevExpress.XtraGrid.Views.Base.InvalidRowExceptionEventArgs e)
{
  
     if (e.RowHandle >= 0)
     {
      if ( this .gridView1.GetRowCellValue(e.RowHandle, this .gridView1.Columns[ "reg_id" ]).ToString().Trim() == "" || this .gridView1.GetRowCellValue(e.RowHandle, this .gridView1.Columns[ "reg_name" ]).ToString().Trim() == "" )
      {
       if (MyDialog.Alert( "  您所填写的内容不符合规则\n 要放弃您刚才对此项所做的更改吗?" , "您所编辑的内容不符合规则" , MessageBoxButtons.YesNo, MessageBoxIcon.Warning) == DialogResult.Yes)
       {
        e.ExceptionMode = ExceptionMode.Ignore;
       }
       else
       {
        e.ExceptionMode = ExceptionMode.NoAction;
       }
      }
     }
     else
     {
      e.ExceptionMode = ExceptionMode.Ignore;
     }
}


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