static void OnFSExpanded(object sender, RoutedEventArgs e)
{
// Only react to the Selected event raised by the TreeViewItem
// whose IsSelected property was modified. Ignore all ancestors
// who are merely reporting that a descendant's Selected fired.
if (!Object.ReferenceEquals(sender, e.OriginalSource))
{
return;
}
TreeViewItem tvi = e.OriginalSource as TreeViewItem;
if (tvi != null)
{
tvi.IsSelected = true;
FSModel tviFSM = tvi.Header as FSModel;
if (tviFSM != null)
{
if (tviFSM.fsType == "Server" || tviFSM.fsType == "file")
{
return;
}
try
{
DateTime lastWriteTime = Directory.GetLastWriteTime(tviFSM.Path);
if (tviFSM.lastModified == lastWriteTime && tviFSM.Children[0] != null)
{
return;
}
}
catch (Exception ex)
{
if (ex is ArgumentException || ex is PathTooLongException || ex is UnauthorizedAccessException || ex is IOException)
{
return;
}
else
{
throw;
}
}
tviFSM.GetChildren();
}
}
}
public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
FrameworkElement element = container as FrameworkElement;
FSModel fsm = item as FSModel;
if (element != null && fsm != null)
{
if (fsm.fsType == "Server")
{
return(element.FindResource("FSServerTemplate") as DataTemplate);
}
if (fsm.fsType == "Drive")
{
return(element.FindResource("FSDriveTemplate") as DataTemplate);
}
if (fsm.fsType == "Folder")
{
return(element.FindResource("FSFolderTemplate") as DataTemplate);
}
}
return(element.FindResource("FSFileTemplate") as DataTemplate);
}
