private void DataGrid_CellDrop(object sender, DragEventArgs e)
{
DataGridCell dgc = sender as DataGridCell;
if (_draggedData != null && !_isMultipleCells)
{
MappedValue selectedCell = _draggedData as MappedValue;
RowViewModel sourceRowModel = (selectedCell.RowBinding as RowViewModel);
ColumnsViewModel sourceColumnModel = (selectedCell.ColumnBinding as ColumnsViewModel);
RowViewModel targetRowModel = ((BindableColumn.ViewModel.RowViewModel)(dgc.DataContext));
ColumnsViewModel targetColumnModel = ((BindableColumn.ViewModel.ColumnsViewModel)((dgc.Column).Header));
targetCell = targetRowModel.Name + targetColumnModel.Currency;
sourceCell = sourceRowModel.Name + sourceColumnModel.Currency;
if (sourceCell == targetCell)
{
RemoveDraggedAdorner();
RemoveInsertionAdorner();
(this._sourceItemsControl as DataGrid).UnselectAllCells();
dgc.IsSelected = false;
return;
}
MappedValueCollection mappedValueCollection = this._mappedValueCollection;
var movingCellData = mappedValueCollection.ReturnIfExistAddIfNot(sourceColumnModel, sourceRowModel);
if (mappedValueCollection.AddCellValue(targetRowModel, targetColumnModel, movingCellData))
{
if (movingCellData.Value != null)
{
dgc.IsSelected = true;
}
mappedValueCollection.EmptyCellValue(sourceRowModel, sourceColumnModel);
}
}
else if (_draggedData != null && _isMultipleCells)
{
RowViewModel targetRowModel = ((BindableColumn.ViewModel.RowViewModel)(dgc.DataContext));
ColumnsViewModel targetColumnModel = ((BindableColumn.ViewModel.ColumnsViewModel)((dgc.Column).Header));
targetCell = targetRowModel.Name + targetColumnModel.Currency;
if (MoveMultipleCells(targetCell, this._multipleDraggedData.Count))
{
this._multipleDraggedData.Clear();
}
}
RemoveDraggedAdorner();
RemoveInsertionAdorner();
this._multipleDraggedData.Clear();
(this._sourceItemsControl as DataGrid).UnselectAllCells();
}
