private bool HasParent(FileSystemInfoEx child, DirectoryInfoEx parent)
{
DirectoryInfoEx current = child.Parent;
while (current != null)
{
if (current.Equals(parent))
{
return(true);
}
current = current.Parent;
}
return(false);
}
public DirectoryTreeItemViewModel LookupChild(DirectoryInfoEx directory, Func <bool> cancelCheck)
{
if (cancelCheck != null && cancelCheck())
{
return(null);
}
if (Parent != null)
{
Parent.IsExpanded = true;
}
if (directory == null)
{
return(null);
}
if (!IsLoaded)
{
IsLoading = true;
SubDirectories = getDirectories();
HasSubDirectories = SubDirectories.Count > 0;
IsLoading = false;
}
foreach (DirectoryTreeItemViewModel subDirModel in SubDirectories)
{
if (!subDirModel.Equals(dummyNode))
{
DirectoryInfoEx subDir = subDirModel.EmbeddedDirectoryModel.EmbeddedDirectoryEntry;
if (directory.Equals(subDir))
{
return(subDirModel);
}
else if (IOTools.HasParent(directory, subDir))
{
return(subDirModel.LookupChild(directory, cancelCheck));
}
}
}
return(null);
}