void OnTableViewSelectionChanged(object sender, DevExpress.Xpf.Grid.GridSelectionChangedEventArgs e)
{
var view = sender as TableView;
var grid = view.Grid;
var selectedCells = view.GetSelectedCells();
var TL_RowIndex = int.MaxValue;
var TL_ColumnIndex = int.MaxValue;
var RB_RowIndex = 0;
var RB_ColumnIndex = 0;
foreach (var cellInfo in selectedCells)
{
var currentRowIndex = grid.GetRowVisibleIndexByHandle(cellInfo.RowHandle);
var currentColumnIndex = cellInfo.Column.VisibleIndex;
if (TL_RowIndex > currentRowIndex)
{
TL_RowIndex = currentRowIndex;
}
if (TL_ColumnIndex > currentColumnIndex)
{
TL_ColumnIndex = currentColumnIndex;
}
if (RB_RowIndex < currentRowIndex)
{
RB_RowIndex = currentRowIndex;
}
if (RB_ColumnIndex < currentColumnIndex)
{
RB_ColumnIndex = currentColumnIndex;
}
}
var TL_CellPresenter = view.GetCellElementByRowHandleAndColumn(
grid.GetRowHandleByVisibleIndex(TL_RowIndex),
view.VisibleColumns.First((column) => column.VisibleIndex == TL_ColumnIndex));
var RB_CellPresenter = view.GetCellElementByRowHandleAndColumn(
grid.GetRowHandleByVisibleIndex(RB_RowIndex),
view.VisibleColumns.First((column) => column.VisibleIndex == RB_ColumnIndex));
Point TL_Point = TL_CellPresenter.TranslatePoint(new Point(0d, 0d), grid);
Point RB_Point = RB_CellPresenter.TranslatePoint(new Point(0d, 0d), grid);
RB_Point.Offset(RB_CellPresenter.ActualWidth, RB_CellPresenter.ActualHeight);
if (rectangleAdorner != null)
{
gridAdornerLayer.Remove(rectangleAdorner);
}
rectangleAdorner = new RectangleAdorner(grid);
rectangleAdorner.RenderRect = new Rect(TL_Point, RB_Point);
gridAdornerLayer.Add(rectangleAdorner);
}
protected virtual void OnSelectionChange(object sender, DevExpress.Xpf.Grid.GridSelectionChangedEventArgs e)
{
customizeContextMenuForSelection();
}
void TableView_SelectionChanged(object sender, DevExpress.Xpf.Grid.GridSelectionChangedEventArgs e)
{
grid.UpdateTotalSummary();
}
