internal void SelectSlot(int slot, bool select)
{
if (this.OwningGrid.RowGroupHeadersTable.Contains(slot))
{
return;
}
if (select)
{
if (!_selectedSlotsTable.Contains(slot))
{
_selectedItemsCache.Add(this.OwningGrid.DataConnection.GetDataItem(this.OwningGrid.RowIndexFromSlot(slot)));
}
_selectedSlotsTable.AddValue(slot, true);
}
else
{
if (_selectedSlotsTable.Contains(slot))
{
_selectedItemsCache.Remove(this.OwningGrid.DataConnection.GetDataItem(this.OwningGrid.RowIndexFromSlot(slot)));
}
_selectedSlotsTable.RemoveValue(slot);
}
}
internal void InsertIndex(int slot)
{
_selectedSlotsTable.InsertIndex(slot);
_oldSelectedSlotsTable.InsertIndex(slot);
// It's possible that we're inserting an item that was just removed. If that's the case,
// and the re-inserted item used to be selected, we want to update the _oldSelectedSlotsTable
// to include the item's new index within the collection.
int rowIndex = this.OwningGrid.RowIndexFromSlot(slot);
if (rowIndex != -1)
{
object insertedItem = this.OwningGrid.DataConnection.GetDataItem(rowIndex);
if (insertedItem != null && _oldSelectedItemsCache.Contains(insertedItem))
{
_oldSelectedSlotsTable.AddValue(slot, true);
}
}
}
