virtual public void SetExpandedWithChildren(TreeViewItem fromItem, bool expand)
{
if (fromItem == null)
{
Debug.LogError("item is null");
return;
}
HashSet <int> parents = new HashSet <int>();
TreeViewUtility.GetParentsBelowItem(fromItem, parents);
// Get existing expanded in hashset
HashSet <int> oldExpandedSet = new HashSet <int>(expandedIDs);
if (expand)
{
oldExpandedSet.UnionWith(parents);
}
else
{
oldExpandedSet.ExceptWith(parents);
}
// Bulk set expanded ids (is sorted in SetExpandedIDs)
SetExpandedIDs(oldExpandedSet.ToArray());
}
// Used to expand children recursively below an item
protected virtual IList <int> GetDescendantsThatHaveChildren(int id)
{
// Default behavior assumes complete tree
HashSet <int> parentsBelow = new HashSet <int>();
TreeViewUtility.GetParentsBelowItem(FindItem(id), parentsBelow);
return(parentsBelow.ToArray());
}
public virtual void SetExpandedWithChildren(TreeViewItem fromItem, bool expand)
{
if (fromItem == null)
{
Debug.LogError("item is null");
}
else
{
HashSet <int> parentsBelowItem = TreeViewUtility.GetParentsBelowItem(fromItem);
HashSet <int> hashSet = new HashSet <int>(this.expandedIDs);
if (expand)
{
hashSet.UnionWith(parentsBelowItem);
}
else
{
hashSet.ExceptWith(parentsBelowItem);
}
this.SetExpandedIDs(hashSet.ToArray <int>());
}
}
protected virtual IList <int> GetDescendantsThatHaveChildren(int id)
{
return(TreeViewUtility.GetParentsBelowItem(this.FindItem(id)).ToList <int>());
}
// Used to expand children recursively below an item
protected virtual IList <int> GetDescendantsThatHaveChildren(int id)
{
// Default behavior assumes complete tree
return(TreeViewUtility.GetParentsBelowItem(FindItem(id)).ToList());
}
