DEV控件：gridControl常用属性设置 - 小石头的一天

公告

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"];
                 }

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"];
                 }

posted on 2018-10-30 16:34 小石头的一天阅读(663) 评论(0) 编辑收藏举报

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