public DataGridRowGroupInfo(
DataGridCollectionViewGroup collectionViewGroup,
bool isVisible,
int level,
int slot,
int lastSubItemSlot)
{
CollectionViewGroup = collectionViewGroup;
IsVisible = isVisible;
Level = level;
Slot = slot;
LastSubItemSlot = lastSubItemSlot;
}
private void GetParentGroupsContainingItemIndex(int index, out CollectionViewGroup[] parentGroups)
{
DataGridCollectionView collectionView = m_dataGridContext.ItemsSourceCollection as DataGridCollectionView;
if (collectionView != null)
{
RawItem rawItem = collectionView.GetRawItemAt(index);
List <CollectionViewGroup> groupList = new List <CollectionViewGroup>(16);
DataGridCollectionViewGroup parentGroup = rawItem.ParentGroup;
while ((parentGroup != null) && !(parentGroup is DataGridCollectionViewGroupRoot))
{
groupList.Add(parentGroup);
parentGroup = parentGroup.Parent;
}
groupList.Reverse();
parentGroups = groupList.ToArray();
}
else
{
CollectionView items = m_dataGridContext.Items;
ReadOnlyObservableCollection <object> groups = items.Groups;
if (groups != null)
{
List <CollectionViewGroup> groupList = new List <CollectionViewGroup>(16);
this.GetParentGroupsContainingItemIndex(index, groups, groupList);
parentGroups = groupList.ToArray();
}
else
{
parentGroups = new DataGridCollectionViewGroup[0];
}
}
}
private void GetParentGroupsContainingItemIndex( int index, out CollectionViewGroup[] parentGroups )
{
DataGridCollectionView collectionView = m_dataGridContext.ItemsSourceCollection as DataGridCollectionView;
if( collectionView != null )
{
RawItem rawItem = collectionView.GetRawItemAt( index );
List<CollectionViewGroup> groupList = new List<CollectionViewGroup>( 16 );
DataGridCollectionViewGroup parentGroup = rawItem.ParentGroup;
while( ( parentGroup != null ) && !( parentGroup is DataGridCollectionViewGroupRoot ) )
{
groupList.Add( parentGroup );
parentGroup = parentGroup.Parent;
}
groupList.Reverse();
parentGroups = groupList.ToArray();
}
else
{
CollectionView items = m_dataGridContext.Items;
ReadOnlyObservableCollection<object> groups = items.Groups;
if( groups != null )
{
List<CollectionViewGroup> groupList = new List<CollectionViewGroup>( 16 );
this.GetParentGroupsContainingItemIndex( index, groups, groupList );
parentGroups = groupList.ToArray();
}
else
{
parentGroups = new DataGridCollectionViewGroup[ 0 ];
}
}
}
