Question

I bind XML file to WPF TreView using this code:

XmlDocument XMLdoc = new XmlDocument();
try
{
     XMLdoc.Load(file);
     XmlDataProvider provider = new XmlDataProvider();
     provider.Document = XMLdoc;
     Binding binding = new Binding();
     binding.Source = provider;
     binding.XPath = "child::node()";
     xmlTree.SetBinding(TreeView.ItemsSourceProperty, binding);
}
catch (XmlException)
{
  MessageBox.Show("The XML file is invalid");
  return;
}

I cannot say that XML is too big but it takes a lot of time more than 1 min to bind and show XML data under WPF TreeView.

My question is: Are there any points that we can optimize?

(NOTE: The final idea is to show XML under WPF App.)

Answer 1

I had the same problem and solved it by setting the TreeView property “VirtualizingStackPanel.IsVirtualizing” to “true”.