到官网得到消息自13.2版本后的Dev Grid中均内置了CheckBox列多选功能。在寻找答案的过程的成果进行记录。

一、13.2版本以后用法

    1. 启用多选列 
      对Gird中的View进行以下属性设置:

      gridView1.OptionsSelection.MultiSelect = true;
      gridView1.OptionsSelection.MultiSelectMode = GridMultiSelectMode.CheckBoxRowSelect;
    2. 清除当前选择 
      在选中列时后,可配置在选中列以外的地方点击时候会清除当前的选择。14以后才有此功能 
      gridView1.OptionsSelection.ResetSelectionClickOutsideCheckboxSelector = true;
    3. 获取选中的行

      二、早起版本实现

      相关链接:http://www.devexpress.com/Support/Center/Example/Details/E1271

      1. GridCheckMarksSelection类

          1 public class GridCheckMarksSelection {
        2 protected GridView _view;
        3 protected ArrayList selection;
        4 GridColumn column;
        5 RepositoryItemCheckEdit edit;
        6 const int CheckboxIndent = 4;
        7
        8 public GridCheckMarksSelection() {
        9 selection = new ArrayList();
        10 }
        11
        12 public GridCheckMarksSelection(GridView view) : this() {
        13 View = view;
        14 }
        15 public GridView View {
        16 get { return _view; }
        17 set {
        18 if (_view != value) {
        19 Detach();
        20 Attach(value);
        21 }
        22 }
        23 }
        24 public GridColumn CheckMarkColumn { get { return column; } }
        25
        26 public int SelectedCount { get { return selection.Count; } }
        27 public object GetSelectedRow(int index) {
        28 return selection[index];
        29 }
        30 public int GetSelectedIndex(object row) {
        31 return selection.IndexOf(row);
        32 }
        33 public void ClearSelection() {
        34 selection.Clear();
        35 Invalidate();
        36 }
        37 public void SelectAll() {
        38 selection.Clear();
        39 // fast (won't work if the grid is filtered)
        40 //if(_view.DataSource is ICollection)
        41 // selection.AddRange(((ICollection)_view.DataSource));
        42 //else
        43 // slow:
        44 for (int i = 0; i < _view.DataRowCount; i++)
        45 selection.Add(_view.GetRow(i));
        46 Invalidate();
        47 }
        48 public void SelectGroup(int rowHandle, bool select) {
        49 if (IsGroupRowSelected(rowHandle) && select) return;
        50 for (int i = 0; i < _view.GetChildRowCount(rowHandle); i++) {
        51 int childRowHandle = _view.GetChildRowHandle(rowHandle, i);
        52 if (_view.IsGroupRow(childRowHandle))
        53 SelectGroup(childRowHandle, select);
        54 else
        55 SelectRow(childRowHandle, select, false);
        56 }
        57 Invalidate();
        58 }
        59 public void SelectRow(int rowHandle, bool select) {
        60 SelectRow(rowHandle, select, true);
        61 }
        62 public void InvertRowSelection(int rowHandle) {
        63 if (View.IsDataRow(rowHandle)) {
        64 SelectRow(rowHandle, !IsRowSelected(rowHandle));
        65 }
        66 if (View.IsGroupRow(rowHandle)) {
        67 SelectGroup(rowHandle, !IsGroupRowSelected(rowHandle));
        68 }
        69 }
        70 public bool IsGroupRowSelected(int rowHandle) {
        71 for (int i = 0; i < _view.GetChildRowCount(rowHandle); i++) {
        72 int row = _view.GetChildRowHandle(rowHandle, i);
        73 if (_view.IsGroupRow(row)) {
        74 if (!IsGroupRowSelected(row)) return false;
        75 } else
        76 if (!IsRowSelected(row)) return false;
        77 }
        78 return true;
        79 }
        80 public bool IsRowSelected(int rowHandle) {
        81 if (_view.IsGroupRow(rowHandle))
        82 return IsGroupRowSelected(rowHandle);
        83
        84 object row = _view.GetRow(rowHandle);
        85 return GetSelectedIndex(row) != -1;
        86 }
        87
        88 protected virtual void Attach(GridView view) {
        89 if (view == null) return;
        90 selection.Clear();
        91 this._view = view;
        92 view.BeginUpdate();
        93 try {
        94 edit = view.GridControl.RepositoryItems.Add("CheckEdit") as RepositoryItemCheckEdit;
        95
        96 column = view.Columns.Add();
        97 column.OptionsColumn.AllowSort = DevExpress.Utils.DefaultBoolean.False;
        98 column.Visible = true;
        99 column.VisibleIndex = 0;
        100 column.FieldName = "CheckMarkSelection";
        101 column.Caption = "Mark";
        102 column.OptionsColumn.ShowCaption = false;
        103 column.OptionsColumn.AllowEdit = false;
        104 column.OptionsColumn.AllowSize = false;
        105 column.UnboundType = DevExpress.Data.UnboundColumnType.Boolean;
        106 column.Width = GetCheckBoxWidth();
        107 column.ColumnEdit = edit;
        108
        109 view.Click += new EventHandler(View_Click);
        110 view.CustomDrawColumnHeader += new ColumnHeaderCustomDrawEventHandler(View_CustomDrawColumnHeader);
        111 view.CustomDrawGroupRow += new RowObjectCustomDrawEventHandler(View_CustomDrawGroupRow);
        112 view.CustomUnboundColumnData += new CustomColumnDataEventHandler(view_CustomUnboundColumnData);
        113 view.KeyDown += new KeyEventHandler(view_KeyDown);
        114 view.RowStyle += new RowStyleEventHandler(view_RowStyle);
        115 } finally {
        116 view.EndUpdate();
        117 }
        118 }
        119 protected virtual void Detach() {
        120 if (_view == null) return;
        121 if (column != null)
        122 column.Dispose();
        123 if (edit != null) {
        124 _view.GridControl.RepositoryItems.Remove(edit);
        125 edit.Dispose();
        126 }
        127
        128 _view.Click -= new EventHandler(View_Click);
        129 _view.CustomDrawColumnHeader -= new ColumnHeaderCustomDrawEventHandler(View_CustomDrawColumnHeader);
        130 _view.CustomDrawGroupRow -= new RowObjectCustomDrawEventHandler(View_CustomDrawGroupRow);
        131 _view.CustomUnboundColumnData -= new CustomColumnDataEventHandler(view_CustomUnboundColumnData);
        132 _view.KeyDown -= new KeyEventHandler(view_KeyDown);
        133 _view.RowStyle -= new RowStyleEventHandler(view_RowStyle);
        134
        135 _view = null;
        136 }
        137 protected int GetCheckBoxWidth() {
        138 DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo info = edit.CreateViewInfo() as DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo;
        139 int width = 0;
        140 GraphicsInfo.Default.AddGraphics(null);
        141 try {
        142 width = info.CalcBestFit(GraphicsInfo.Default.Graphics).Width;
        143 } finally {
        144 GraphicsInfo.Default.ReleaseGraphics();
        145 }
        146 return width + CheckboxIndent * 2;
        147 }
        148 protected void DrawCheckBox(Graphics g, Rectangle r, bool Checked) {
        149 DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo info;
        150 DevExpress.XtraEditors.Drawing.CheckEditPainter painter;
        151 DevExpress.XtraEditors.Drawing.ControlGraphicsInfoArgs args;
        152 info = edit.CreateViewInfo() as DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo;
        153 painter = edit.CreatePainter() as DevExpress.XtraEditors.Drawing.CheckEditPainter;
        154 info.EditValue = Checked;
        155 info.Bounds = r;
        156 info.CalcViewInfo(g);
        157 args = new DevExpress.XtraEditors.Drawing.ControlGraphicsInfoArgs(info, new DevExpress.Utils.Drawing.GraphicsCache(g), r);
        158 painter.Draw(args);
        159 args.Cache.Dispose();
        160 }
        161 void Invalidate() {
        162 _view.CloseEditor();
        163 _view.BeginUpdate();
        164 _view.EndUpdate();
        165 }
        166 void SelectRow(int rowHandle, bool select, bool invalidate) {
        167 if (IsRowSelected(rowHandle) == select) return;
        168 object row = _view.GetRow(rowHandle);
        169 if (select)
        170 selection.Add(row);
        171 else
        172 selection.Remove(row);
        173 if (invalidate) {
        174 Invalidate();
        175 }
        176 }
        177 voidview_CustomUnboundColumnData(object sender, CustomColumnDataEventArgs e) {
        178 if (e.Column == CheckMarkColumn) {
        179 if (e.IsGetData)
        180 e.Value = IsRowSelected(View.GetRowHandle(e.ListSourceRowIndex));
        181 else
        182 SelectRow(View.GetRowHandle(e.ListSourceRowIndex), (bool)e.Value);
        183 }
        184 }
        185 voidview_KeyDown(object sender, KeyEventArgs e) {
        186 if (View.FocusedColumn != column || e.KeyCode != Keys.Space) return;
        187 InvertRowSelection(View.FocusedRowHandle);
        188 }
        189 voidView_Click(object sender, EventArgs e) {
        190 GridHitInfo info;
        191 Point pt = _view.GridControl.PointToClient(Control.MousePosition);
        192 info = _view.CalcHitInfo(pt);
        193 if (info.Column == column) {
        194 if (info.InColumn) {
        195 if (SelectedCount == _view.DataRowCount)
        196 ClearSelection();
        197 else
        198 SelectAll();
        199 }
        200 if (info.InRowCell) {
        201 InvertRowSelection(info.RowHandle);
        202 }
        203 }
        204 if (info.InRow && _view.IsGroupRow(info.RowHandle) && info.HitTest != GridHitTest.RowGroupButton) {
        205 InvertRowSelection(info.RowHandle);
        206 }
        207 }
        208 voidView_CustomDrawColumnHeader(object sender, ColumnHeaderCustomDrawEventArgs e) {
        209 if (e.Column == column) {
        210 e.Info.InnerElements.Clear();
        211 e.Painter.DrawObject(e.Info);
        212 DrawCheckBox(e.Graphics, e.Bounds, SelectedCount == _view.DataRowCount);
        213 e.Handled = true;
        214 }
        215 }
        216 voidView_CustomDrawGroupRow(object sender, RowObjectCustomDrawEventArgs e) {
        217 DevExpress.XtraGrid.Views.Grid.ViewInfo.GridGroupRowInfo info;
        218 info = e.Info as DevExpress.XtraGrid.Views.Grid.ViewInfo.GridGroupRowInfo;
        219
        220 info.GroupText = "" + info.GroupText.TrimStart();
        221 e.Info.Paint.FillRectangle(e.Graphics, e.Appearance.GetBackBrush(e.Cache), e.Bounds);
        222 e.Painter.DrawObject(e.Info);
        223
        224 Rectangle r = info.ButtonBounds;
        225 r.Offset(r.Width + CheckboxIndent * 2 - 1, 0);
        226 DrawCheckBox(e.Graphics, r, IsGroupRowSelected(e.RowHandle));
        227 e.Handled = true;
        228 }
        229 voidview_RowStyle(object sender, RowStyleEventArgs e) {
        230 if (IsRowSelected(e.RowHandle)) {
        231 e.Appearance.BackColor = SystemColors.Highlight;
        232 e.Appearance.ForeColor = SystemColors.HighlightText;
        233 }
        234 }
        235 }

        GridCheckMarksSelection类

      2. 使用方法 
        1 public Form1()
        2 {
        3 InitializeComponent();
        4 new GridCheckMarksSelection(gridView1);
        5 }

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