DevExpress13.2以前版本GridControl的没有实现全选反选多选操作（就是没有这两个属性OptionsSelection.MultiSelect和OptionsSelection.MultiSelectMode），需要手动实现。
官方示例代码在http://www.devexpress.com/Support/Center/Example/Details/E1271，具体实现为:
1.GridCheckMarksSelection类
public class GridCheckMarksSelection {
protected GridView _view;
protected ArrayList selection;
GridColumn column;
RepositoryItemCheckEdit edit;
const int CheckboxIndent = 4;
public GridCheckMarksSelection() {
selection = new ArrayList();
}
public GridCheckMarksSelection(GridView view) : this() {
View = view;
}
public GridView View {
get { return _view; }
set {
if (_view != value) {
Detach();
Attach(value);
}
}
}
public GridColumn CheckMarkColumn { get { return column; } }
public int SelectedCount { get { return selection.Count; } }
public object GetSelectedRow(int index) {
return selection[index];
}
public int GetSelectedIndex(object row) {
return selection.IndexOf(row);
}
public void ClearSelection() {
selection.Clear();
Invalidate();
}
public void SelectAll() {
selection.Clear();
// fast (won't work if the grid is filtered)
//if(_view.DataSource is ICollection)
// selection.AddRange(((ICollection)_view.DataSource));
//else
// slow:
for (int i = 0; i < _view.DataRowCount; i++)
selection.Add(_view.GetRow(i));
Invalidate();
}
public void SelectGroup(int rowHandle, bool select) {
if (IsGroupRowSelected(rowHandle) && select) return;
for (int i = 0; i < _view.GetChildRowCount(rowHandle); i++) {
int childRowHandle = _view.GetChildRowHandle(rowHandle, i);
if (_view.IsGroupRow(childRowHandle))
SelectGroup(childRowHandle, select);
else
SelectRow(childRowHandle, select, false);
}
Invalidate();
}
public void SelectRow(int rowHandle, bool select) {
SelectRow(rowHandle, select, true);
}
public void InvertRowSelection(int rowHandle) {
if (View.IsDataRow(rowHandle)) {
SelectRow(rowHandle, !IsRowSelected(rowHandle));
}
if (View.IsGroupRow(rowHandle)) {
SelectGroup(rowHandle, !IsGroupRowSelected(rowHandle));
}
}
public bool IsGroupRowSelected(int rowHandle) {
for (int i = 0; i < _view.GetChildRowCount(rowHandle); i++) {
int row = _view.GetChildRowHandle(rowHandle, i);
if (_view.IsGroupRow(row)) {
if (!IsGroupRowSelected(row)) return false;
} else
if (!IsRowSelected(row)) return false;
}
return true;
}
public bool IsRowSelected(int rowHandle) {
if (_view.IsGroupRow(rowHandle))
return IsGroupRowSelected(rowHandle);
object row = _view.GetRow(rowHandle);
return GetSelectedIndex(row) != -1;
}
protected virtual void Attach(GridView view) {
if (view == null) return;
selection.Clear();
this._view = view;
view.BeginUpdate();
try {
edit = view.GridControl.RepositoryItems.Add("CheckEdit") as RepositoryItemCheckEdit;
column = view.Columns.Add();
column.OptionsColumn.AllowSort = DevExpress.Utils.DefaultBoolean.False;
column.Visible = true;
column.VisibleIndex = 0;
column.FieldName = "CheckMarkSelection";
column.Caption = "Mark";
column.OptionsColumn.ShowCaption = false;
column.OptionsColumn.AllowEdit = false;
column.OptionsColumn.AllowSize = false;
column.UnboundType = DevExpress.Data.UnboundColumnType.Boolean;
column.Width = GetCheckBoxWidth();
column.ColumnEdit = edit;
view.Click += new EventHandler(View_Click);
view.CustomDrawColumnHeader += new ColumnHeaderCustomDrawEventHandler(View_CustomDrawColumnHeader);
view.CustomDrawGroupRow += new RowObjectCustomDrawEventHandler(View_CustomDrawGroupRow);
view.CustomUnboundColumnData += new CustomColumnDataEventHandler(view_CustomUnboundColumnData);
view.KeyDown += new KeyEventHandler(view_KeyDown);
view.RowStyle += new RowStyleEventHandler(view_RowStyle);
} finally {
view.EndUpdate();
}
}
protected virtual void Detach() {
if (_view == null) return;
if (column != null)
column.Dispose();
if (edit != null) {
_view.GridControl.RepositoryItems.Remove(edit);
edit.Dispose();
}
_view.Click -= new EventHandler(View_Click);
_view.CustomDrawColumnHeader -= new ColumnHeaderCustomDrawEventHandler(View_CustomDrawColumnHeader);
_view.CustomDrawGroupRow -= new RowObjectCustomDrawEventHandler(View_CustomDrawGroupRow);
_view.CustomUnboundColumnData -= new CustomColumnDataEventHandler(view_CustomUnboundColumnData);
_view.KeyDown -= new KeyEventHandler(view_KeyDown);
_view.RowStyle -= new RowStyleEventHandler(view_RowStyle);
_view = null;
}
protected int GetCheckBoxWidth() {
DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo info = edit.CreateViewInfo() as DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo;
int width = 0;
GraphicsInfo.Default.AddGraphics(null);
try {
width = info.CalcBestFit(GraphicsInfo.Default.Graphics).Width;
} finally {
GraphicsInfo.Default.ReleaseGraphics();
}
return width + CheckboxIndent * 2;
}
protected void DrawCheckBox(Graphics g, Rectangle r, bool Checked) {
DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo info;
DevExpress.XtraEditors.Drawing.CheckEditPainter painter;
DevExpress.XtraEditors.Drawing.ControlGraphicsInfoArgs args;
info = edit.CreateViewInfo() as DevExpress.XtraEditors.ViewInfo.CheckEditViewInfo;
painter = edit.CreatePainter() as DevExpress.XtraEditors.Drawing.CheckEditPainter;
info.EditValue = Checked;
info.Bounds = r;
info.CalcViewInfo(g);
args = new DevExpress.XtraEditors.Drawing.ControlGraphicsInfoArgs(info, new DevExpress.Utils.Drawing.GraphicsCache(g), r);
painter.Draw(args);
args.Cache.Dispose();
}
void Invalidate() {
_view.CloseEditor();
_view.BeginUpdate();
_view.EndUpdate();
}
void SelectRow(int rowHandle, bool select, bool invalidate) {
if (IsRowSelected(rowHandle) == select) return;
object row = _view.GetRow(rowHandle);
if (select)
selection.Add(row);
else
selection.Remove(row);
if (invalidate) {
Invalidate();
}
}
void view_CustomUnboundColumnData(object sender, CustomColumnDataEventArgs e) {
if (e.Column == CheckMarkColumn) {
if (e.IsGetData)
e.Value = IsRowSelected(View.GetRowHandle(e.ListSourceRowIndex));
else
SelectRow(View.GetRowHandle(e.ListSourceRowIndex), (bool)e.Value);
}
}
void view_KeyDown(object sender, KeyEventArgs e) {
if (View.FocusedColumn != column || e.KeyCode != Keys.Space) return;
InvertRowSelection(View.FocusedRowHandle);
}
void View_Click(object sender, EventArgs e) {
GridHitInfo info;
Point pt = _view.GridControl.PointToClient(Control.MousePosition);
info = _view.CalcHitInfo(pt);
if (info.Column == column) {
if (info.InColumn) {
if (SelectedCount == _view.DataRowCount)
ClearSelection();
else
SelectAll();
}
if (info.InRowCell) {
InvertRowSelection(info.RowHandle);
}
}
if (info.InRow && _view.IsGroupRow(info.RowHandle) && info.HitTest != GridHitTest.RowGroupButton) {
InvertRowSelection(info.RowHandle);
}
}
void View_CustomDrawColumnHeader(object sender, ColumnHeaderCustomDrawEventArgs e) {
if (e.Column == column) {
e.Info.InnerElements.Clear();
e.Painter.DrawObject(e.Info);
DrawCheckBox(e.Graphics, e.Bounds, SelectedCount == _view.DataRowCount);
e.Handled = true;
}
}
void View_CustomDrawGroupRow(object sender, RowObjectCustomDrawEventArgs e) {
DevExpress.XtraGrid.Views.Grid.ViewInfo.GridGroupRowInfo info;
info = e.Info as DevExpress.XtraGrid.Views.Grid.ViewInfo.GridGroupRowInfo;
info.GroupText = " " + info.GroupText.TrimStart();
e.Info.Paint.FillRectangle(e.Graphics, e.Appearance.GetBackBrush(e.Cache), e.Bounds);
e.Painter.DrawObject(e.Info);
Rectangle r = info.ButtonBounds;
r.Offset(r.Width + CheckboxIndent * 2 - 1, 0);
DrawCheckBox(e.Graphics, r, IsGroupRowSelected(e.RowHandle));
e.Handled = true;
}
void view_RowStyle(object sender, RowStyleEventArgs e) {
if (IsRowSelected(e.RowHandle)) {
e.Appearance.BackColor = SystemColors.Highlight;
e.Appearance.ForeColor = SystemColors.HighlightText;
}
}
}
2.使用GridCheckMarksSelection类
///
/// 窗体LOAD事件
///
void form1_Load(object sender, EventArgs e)
{
new GridCheckMarksSelection(gridView1);
}
好了，以上就是知道不整理的《DevExpress13.2以前版本的GridControl实现全选反选多选操作》的内容，希望对您有所帮助。
13.2后版本请看此篇《DevExpress中GridControl中实现全选反选多选操作》。
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