DEV控件：gridControl常用属性设置2

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

  sVal=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 = Tr

    OptionsColumn.AllowEdit = Tr

    OptionsColumn.ReadOnly = Tr

 

  可编辑:

    ColumnViewOptionsBehavior.Editable = Tr

    OptionsColumn.AllowEdit = Tr

    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Tr.

　　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.Qry("select fid,fname,fsex from d l").Tables[0];

         Re1.DisplayMember = "FSEX";

         Re1.ValMember = "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.GetRowCellVal(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.SetRowCellVal(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=tr;

  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)

    p lic 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.SetRowCellVal(e.RowHandle, View.Columns[0], gridView1.GetRowCellVal(gridView1.GetRowHandle

 

(gridView1.RowCount - 2), gridView1.Columns[0])); //复制最后一行的数据到新行

 

            View.SetRowCellVal(e.RowHandle, View.Columns[1], gridView1.GetRowCellVal(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.GetRowCellVal(e.RowHandle, "ReceiveDate") == DBNull.Val)

    {

       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.GetRowCellVal(e.RowHandle, View.Columns["needAlert"]);

         if (needAlert != null & needAlert != DBNull.Val && needAlert.ToString().Trim() != "0" & View.GetRowCellVal(e.RowHandle, View.Columns["Val"]) != DBNull.Val)

         {

             decimal AverVal = Convert.ToDecimal(View.GetRowCellVal(e.RowHandle, View.Columns["Val"]));

             object MinVal = View.GetRowCellVal(e.RowHandle, View.Columns["MinVal"]);

             object MaxVla = View.GetRowCellVal(e.RowHandle, View.Columns["MaxVal"]);

             if (MinVal != DBNull.Val & MinVal != null & MaxVla.ToString() != "" & MaxVla != DBNull.Val && MaxVla != null & MaxVla.ToString() != "")

             {

                 decimal gridColumn2 = Convert.ToDecimal(View.GetRowCellVal(e.RowHandle, View.Columns["MinVal"]));

                 decimal gridColumn1 = Convert.ToDecimal(View.GetRowCellVal(e.RowHandle, View.Columns["MaxVal"]));

                 if (gridColumn2 > AverVal || AverVal > gridColumn1)

                 {

                     if (!ht.ContainsKey("pic"))

                         ht.Add("pic", GetImage(1));

                     e.Val = 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.GetRowCellVal(e.RowHandle, View.Columns["needAlert"]);

         if (needAlert != null & needAlert != DBNull.Val && needAlert.ToString().Trim() != "0" & View.GetRowCellVal(e.RowHandle, View.Columns["Val"]) != DBNull.Val)

         {

             decimal AverVal = Convert.ToDecimal(View.GetRowCellVal(e.RowHandle, View.Columns["Val"]));

             object MinVal = View.GetRowCellVal(e.RowHandle, View.Columns["MinVal"]);

             object MaxVla = View.GetRowCellVal(e.RowHandle, View.Columns["MaxVal"]);

             if (MinVal != DBNull.Val & MinVal != null & MaxVla.ToString() != "" & MaxVla != DBNull.Val && MaxVla != null & MaxVla.ToString() != "")

             {

                 decimal gridColumn2 = Convert.ToDecimal(MinVal);

                 decimal gridColumn1 = Convert.ToDecimal(MaxVla);

                 if (gridColumn2 > AverVal || AverVal > 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.Val = DevExpress.Utils.StyleLayout.ColorFromString(strVal);

             e.Val = Common.HexToColor(strVal);

         }

     }

     else

     {

         //Color colorVal = DevExpress.Utils.StyleLayout.ColorFromString(e.Val.ToString());

         Color colorVal = (Color)e.Val;

         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.GetVal("RegID").ToString().Trim();

    DataSet ds = areaSetupActionHelper.getDsRegionByParentId(fid);

    RepositoryItemLookUpEdit lookParent_Id = new RepositoryItemLookUpEdit();

    lookParent_Id.Columns.Add(new LookUpColumnInfo("reg_id", 40, "区划编号"));

    lookParent_Id.Columns.Add(new LookUpColumnInfo("reg_name", 40, "区划名称"));

    lookParent_Id.DataSource = ds.Tables[0].DefaultView;

    lookParent_Id.ValMember = "reg_id";

    lookParent_Id.DisplayMember = "reg_id";

    this.gridView1.Columns["parent_id"].ColumnEdit = lookParent_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(@"[/一-/龥]{1,20}");

     Match m=reg.Match(e.Val.ToString().Trim());

     if (m.Length != e.Val.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_InvalidValException(object sender, InvalidValExceptionEventArgs 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.GetRowCellVal(e.RowHandle, "reg_id").ToString().Trim();

string regName = this.gridView1.GetRowCellVal(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.GetRowCellVal(e.RowHandle, this.gridView1.Columns["reg_id"]).ToString().Trim() == "" || this.gridView1.GetRowCellVal(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;

    }

}