public bool UpdateChild(EntryVm newChild)
{
var childEntry = ChildEntryVms.FirstOrDefault(e => e.Key == newChild.Key);
if (childEntry != null)
{
newChild.ParentEntry = childEntry.ParentEntry;
var index = ChildEntryVms.IndexOf(childEntry);
ChildEntryVms.Remove(childEntry);
ChildEntryVms.Insert(index, newChild);
return(true);
}
else
{
foreach (var child in ChildEntryVms)
{
if (child.UpdateChild(newChild))
{
return(true);
}
}
}
return(false);
}
internal bool HasChildNode(EntryVm child)
{
var foundChild = ChildEntryVms.FirstOrDefault(c => c.Key == child.Key);
if (foundChild != null)
{
return(true);
}
else
{
foreach (var myChild in ChildEntryVms)
{
if (myChild.HasChildNode(child))
{
return(true);
}
}
}
return(false);
}
public bool DeleteChild(EntryVm obsoleteChild)
{
var childEntry = ChildEntryVms.FirstOrDefault(e => e.Key == obsoleteChild.Key);
if (childEntry != null)
{
ChildEntryVms.Remove(childEntry);
return(true);
}
else
{
foreach (var child in ChildEntryVms)
{
if (child.DeleteChild(obsoleteChild))
{
return(true);
}
}
}
return(false);
}