public void Visit(DataGridContext sourceContext, int startSourceDataItemIndex, int endSourceDataItemIndex, ref bool stopVisit)
{
SelectionManager selectionChangerManager = sourceContext.DataGridControl.SelectionChangerManager;
if (m_selectedColumns != null)
{
int columnCount = sourceContext.Columns.Count;
if (columnCount == 0)
{
return;
}
SelectionRange contextColumnMaxRange = new SelectionRange(0, columnCount - 1);
for (int i = 0; i < m_selectedColumns.Length; i++)
{
SelectionRange selectionRange = m_selectedColumns[i];
SelectionRange intersectionSelectionRange = selectionRange.Intersect(contextColumnMaxRange);
if (intersectionSelectionRange.IsEmpty)
{
continue;
}
#if DEBUG
string action = (m_unselect) ? "Removing" : "Adding";
Debug.WriteLine("Selection : " + action + " cell : (" + startSourceDataItemIndex.ToString() + " - " + endSourceDataItemIndex.ToString() + ") - ("
+ intersectionSelectionRange.StartIndex.ToString() + " - " + intersectionSelectionRange.EndIndex.ToString() + ")");
#endif
var cellRange = new SelectionCellRangeWithItems(new SelectionRange(startSourceDataItemIndex, endSourceDataItemIndex), null, intersectionSelectionRange);
if (m_unselect)
{
selectionChangerManager.UnselectCells(sourceContext, cellRange);
}
else
{
selectionChangerManager.SelectCells(sourceContext, cellRange);
}
}
}
else
{
#if DEBUG
string action = (m_unselect) ? "Removing" : "Adding";
Debug.WriteLine("Selection : " + action + " Adding item : " + startSourceDataItemIndex.ToString() + " - " + endSourceDataItemIndex.ToString());
#endif
var itemRange = new SelectionRangeWithItems(new SelectionRange(startSourceDataItemIndex, endSourceDataItemIndex), null);
if (m_unselect)
{
selectionChangerManager.UnselectItems(sourceContext, itemRange);
}
else
{
selectionChangerManager.SelectItems(sourceContext, itemRange);
}
}
}
internal SelectionCellRangeWithItemsWrapper(SelectionCellRangeWithItems value, int index)
{
m_value = value;
m_index = index;
}