Devexpress GridControl

 [一篮饭特稀原创,转载请注明出处http://www.cnblogs.com/wanghafan/archive/2012/02/09/2344241.html]

--Devexpress GridControl repositoryItemCalcEdit 数值 不为空

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1 AllowNullInput=False;

--Devexpress GridControl GridView 点击 单元格 选中内容

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1 GridView-OptionsBehavior-EditorShowMode设置成MouseUp
2 
3 另外如果是treeList则设置treeList-OptionsBehavior-ShowEditorOnMouseUp为True

--Devexpress GridControl 向上 向下 最上 最下 排序

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  1 private void toolStripButton_向上_Click(object sender, EventArgs e)
  2         {
  3             UpOrDown(gridView, true);
  4         }
  5 
  6         private void toolStripButton_向下_Click(object sender, EventArgs e)
  7         {
  8             UpOrDown(gridView, false);
  9         }
 10 
 11         private void toolStripButton_最下_Click(object sender, EventArgs e)
 12         {
 13             TopOrLast(gridView, false);
 14         }
 15 
 16         private void toolStripButton_最上_Click(object sender, EventArgs e)
 17         {
 18             TopOrLast(gridView, true);
 19         }
 20 
 21         private void UpOrDown(DevExpress.XtraGrid.Views.Grid.GridView GridView, bool ISUpOrDown)
 22         {
 23             DataRow row = GridView.GetFocusedDataRow();
 24             if (ISUpOrDown)
 25             {
 26                 if (!GridView.IsFirstRow)
 27                     GridView.MovePrev();
 28                 else
 29                     return;
 30             }
 31             else
 32             {
 33                 if (!GridView.IsLastRow)
 34                     GridView.MoveNext();
 35                 else
 36                     return;
 37             }
 38             DataRow Pretrow = GridView.GetFocusedDataRow();
 39             if (Pretrow != null && row != null)
 40             {
 41                 DataRow IRow = dt_F_表格编号.NewRow();
 42                 for (int k = 0; k < row.ItemArray.Length; k++) IRow[k] = Pretrow[k];
 43                 for (int i = 0; i < row.ItemArray.Length; i++) Pretrow[i] = row[i];
 44                 for (int j = 0; j < row.ItemArray.Length; j++) row[j] = IRow[j];
 45             }
 46         }
 47 
 48         private void TopOrLast(DevExpress.XtraGrid.Views.Grid.GridView GridView, bool ISTopOrLast)
 49         {
 50             int rowA = GridView.FocusedRowHandle;
 51             int rowB = 0;
 52             if (ISTopOrLast)
 53             {
 54                 if (!GridView.IsFirstRow)
 55                 {
 56                     GridView.MoveFirst();
 57                     rowB = GridView.FocusedRowHandle;
 58                 }
 59                 else
 60                     return;
 61             }
 62             else
 63             {
 64                 if (!GridView.IsLastRow)
 65                 {
 66                     GridView.MoveLast();
 67                     rowB = GridView.FocusedRowHandle;
 68                 }
 69                 else
 70                     return;
 71             }            
 72             
 73             if (rowA!=rowB)
 74             {
 75                 if (rowA < rowB) //最下
 76                 {
 77                     for (int z = rowA+1; z <= rowB; z++)
 78                     {                        
 79                         DataRow row = gridView.GetDataRow(rowA);
 80                         DataRow newrow = gridView.GetDataRow(z);
 81                         DataRow IRow = dt_F_表格编号.NewRow();
 82                         for (int k = 0; k < row.ItemArray.Length; k++) IRow[k] = newrow[k];
 83                         for (int i = 0; i < row.ItemArray.Length; i++) newrow[i] = row[i];
 84                         for (int j = 0; j < row.ItemArray.Length; j++) row[j] = IRow[j];
 85                         rowA++;
 86                     }
 87                 }
 88                 else //最上
 89                 {
 90                     for (int z = rowA-1; rowB>=0; z--)
 91                     {                        
 92                         DataRow row = gridView.GetDataRow(rowA);
 93                         DataRow newrow = gridView.GetDataRow(z);
 94                         DataRow IRow = dt_F_表格编号.NewRow();
 95                         for (int k = 0; k < row.ItemArray.Length; k++) IRow[k] = newrow[k];
 96                         for (int i = 0; i < row.ItemArray.Length; i++) newrow[i] = row[i];
 97                         for (int j = 0; j < row.ItemArray.Length; j++) row[j] = IRow[j];
 98                         rowA--;
 99                         if (z == 0) return;
100                     }
101                 }              
102             }            
103         }

--Devexpress GridControl 滚动条

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1 GridControl-Run Designer-OptionsView-ColunmAutoWidth=False

--Devexpress GridControl 单元格 只读

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 1 控件本身不支持单个单元格的只读效果，只能实现整列的只读，因此我们自己虚拟只读效果
 2 private void gridView_CustomRowCellEdit(object sender, CustomRowCellEditEventArgs e)
 3 {
 4     if (e.Column != this.gc)
 5     {
 6     DataRow dataRow = this.gridView.GetDataRow(e.RowHandle);
 7     if ((dataRow != null) && (dataRow[e.Column.FieldName] is DBNull))
 8     {
 9         e.RepositoryItem = this.repositoryItemHyperLinkEdit_ReadOnly; //这个是一个单元格控件设置成只读 控件为hyperLintEdit才可以设置成不可聚焦TextEidtStyle=HideTextEditor
10     }
11     }
12 }
13 
14 private void gridView_RowCellStyle(object sender, RowCellStyleEventArgs e)
15 {
16     if (e.Column != this.gc)
17     {
18     DataRow dataRow = this.gridView.GetDataRow(e.RowHandle);
19     if ((dataRow != null) && (dataRow[e.Column.FieldName] is DBNull))
20     {
21         e.Appearance.BackColor = this.gc.AppearanceCell.BackColor; //设置单元格颜色为灰色 当然也可以不设置
22     }
23     }
24 }
25 
26 
27 private void InitializeComponent()
28 {
29     this.repositoryItemTextEdit = new RepositoryItemTextEdit();
30     this.repositoryItemTextEdit.BeginInit();
31     this.repositoryItemTextEdit.Appearance.BackColor = Color.FromArgb(0xdf, 0xdf, 0xdf);
32     this.repositoryItemTextEdit.Appearance.Options.UseBackColor = true;
33     this.repositoryItemTextEdit.AppearanceDisabled.BackColor = Color.FromArgb(0xdf, 0xdf, 0xdf);
34     this.repositoryItemTextEdit.AppearanceDisabled.Options.UseBackColor = true;
35     this.repositoryItemTextEdit.AppearanceFocused.BackColor = Color.FromArgb(0xdf, 0xdf, 0xdf);
36     this.repositoryItemTextEdit.AppearanceFocused.Options.UseBackColor = true;
37     this.repositoryItemTextEdit.AutoHeight = false;
38     this.repositoryItemTextEdit.Enabled = false;
39     this.repositoryItemTextEdit.Name = "repositoryItemTextEdit4";
40     this.repositoryItemTextEdit.ReadOnly = true;   
41     this.repositoryItemTextEdit.AllowNullInput=false; //不允许空值 
42     this.repositoryItemTextEdit.EndInit();          
43 }

--Devexpress GridControl 多行复制

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 1 Devexprss GridControl 多行复制：
 2 1.GridControl设计器Views下
 3 OptionsBehavior-CopyToClipboardWithColumnHeaders=False;
 4 OptionsSelection-MultiSelect=True;
 5 OptionsSelection-MultiSelectMode=RowSelect;
 6 2.添加如下代码
 7 private void Table3Three_gridView_ShowingEditor(object sender, CancelEventArgs e)
 8 {
 9    e.Cancel = isCancel;
10 }
11 bool isCancel = true;
12 private void Table3Three_gridView_RowClick(object sender, DevExpress.XtraGrid.Views.Grid.RowClickEventArgs e)
13 {
14    isCancel = false;
15 }
16 private void Table3Three_gridView_KeyDown(object sender, KeyEventArgs e)
17 {
18    //Ctrl+V粘贴
19    if (e.Modifiers.CompareTo(Keys.Control) == 0 && e.KeyCode == Keys.V)
20    {
21     object _objData = null;
22     IDataObject dataObj = Clipboard.GetDataObject();
23 
24     if (dataObj.GetDataPresent(DataFormats.Text))
25      _objData = dataObj.GetData(DataFormats.Text);
26 
27     if (_objData != null)
28     {
29      int RowNumber = 0;
30 
31      string _tempStr = _objData.ToString();
32 
33      string[] _split = { "\r\n" };
34      string[] _arrayStr = _tempStr.Split(_split, StringSplitOptions.None);
35 
36      for (int i = 0; i < _arrayStr.Length - 1; i++)
37      {
38       string[] _arrayStr2 = _arrayStr[i].Split('\t');
39 
40       Table3Three_gridView.AddNewRow();
41       Table3Three_gridView.MoveLastVisible();
42       RowNumber = Table3Three_gridView.FocusedRowHandle;
43 
44       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["定额编号"], _arrayStr2[0]);
45       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["定额名称"], _arrayStr2[1]);
46       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["单位"], _arrayStr2[2]);
47       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["名称"], _arrayStr2[3]);
48       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["单位台班"], _arrayStr2[4]);
49       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["计算数量"], _arrayStr2[5]);
50       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["台班单价"], _arrayStr2[6]);
51       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["备注"], _arrayStr2[7]);
52       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["仪器仪表编码"], _arrayStr2[8]);
53       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["总数量"], _arrayStr2[9]);
54       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["台班合价"], _arrayStr2[10]);
55       Table3Three_gridView.SetRowCellValue(RowNumber, Table3Three_gridView.Columns["关联"], _arrayStr2[11]);
56      }
57      isCancel = true;
58      App_Code.Global.isChange = "5";
59     }
60    }
61 }

--Devexpress GridControl AdvBandedGridView 数据多行显示

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 1 实现效果：
 2 |基本信息|        费率             |
 3 |    名称   | 运杂费   |采购费   |
 4 |              |优惠系数|优惠系数|
 5 | 第1段   | 2.2%    | 1.0%     |
 6 |              | 80%      |90%       |
 7 
 8 操作：
 9 1.GridView设计器“ClickHereToChangeView-ConvertTo-advBandedGridView”
10 2.GridControl设计器中Bands新增“基本信息”和“费率”两个Band
11 3.GridControl设计器中Bands中ShowColumnsSelector并拖动“运杂费”“采购费”“优惠系数”“优惠系数”到各自的Bands
12 3.GridControl设计器中Bands拖动2个优惠系数分别到第二行
13 4.GridControl设计器中Columns修改“名称”列rowcount属性为2
14 5.GridControl设计器中Bands和Columns所有列的MinWidth=100
15 6.GridControl设计器中Bands和Columns所有列的AllowMove=false
16 7.GridControl设计器中Bands中AutoWidth的勾去掉

--Devexpress GridControl RepositoryItemComboBox 只读

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1 GridControl 的RepositoryItemComboBox 控件，如果需要设置“只读+下拉”方法如下：
2 GridControl设计器-Columns-某字段-Column properties-ColumnEdit-TextEditStyle=DisableTextEditor

--Devexpress GridControl 统计技巧

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1 比如对“数量”列进行统计，只要在GridControl的设计器中设置SummaryItem:
2    SummaryItem.DisplayFormat = "{0:f2}";
3    SummaryItem.FieldName = "数量";
4    SummaryItem.SummaryType = DevExpress.Data.SummaryItemType.Sum;

--Devexpress GridControl 公式使用技巧

View Code

 1 1.GridControl设计器 //由于数据库的列“合价”不能既有值又绑定公式，所以我们引入一个虚拟的列“小计”
 2      SQL语句“select 单价,数量,合价 from 表名”
 3       数据库真实列“单价”“数量”“合价”，非真实列“小计”
 4       其中“小计”UnboundExpression=[单价] * [数量]
 5       其中“小计”Visible=False //隐藏该虚拟列
 6 2.后台代码 //把“小计”计算的值写入“合价”单元格
 7 private void gridView_CellValueChanged(object sender, CellValueChangedEventArgs e)
 8         {
 9             if (gridView.FocusedRowHandle >= 0)
10             {
11                 if (e.Column.Caption.Equals("数量") || e.Column.Caption.Equals("单价"))
12                 {
13                      //设置结果值       
14                     gridView.SetRowCellValue(gridView.FocusedRowHandle, gridView.Columns["合价"], gridView.GetFocusedRowCellValue("小计").ToString());
15                 }
16             }           
17         }

--Devexpress GridControl 屏蔽右键

View Code

1 optionmenu-》enablegrouppanelmenu类似参数为false

--Devexpress GridControl 全选

1.如图添加DevExpress.XtraEditors.CheckEdit，设置Size（18, 19）
2.设置GridControl首列“check”属性MinWidth，MaxWidth为20
3.添加代码

View Code

1         private void checkBox_All_CheckStateChanged(object sender, EventArgs e)
2         {
3             foreach (DataRow dr in dt_EvaluateProjectT.Rows)            
4                 dr["check"]=(sender as DevExpress.XtraEditors.CheckEdit).CheckState;
5         }