如何使用WPF从XML文件创建treeview？

This is XML file

这是XML文件

 <Root>
 <RootNode name="CurrentDbName" value="DeltaTest Backup" DesiPath="E:\BuildBackups">
 <ChildNode name="Application" value="App">
  <LeafNode name="Source" value="Source" SourcePath="E:\Alertv2" /> 
  <LeafNode name="Publish" value="Publish" SourcePath="C:\Alert_Source" /> 
  </ChildNode>
 <ChildNode name="Database" value="DB">
  <LeafNode name="Dev" value="Dev" SourcePath="C:\Kiran3" /> 
  <LeafNode name="Build" value="Build" SourcePath="C:\Kiran4" /> 
  </ChildNode>
  </RootNode>  </Root>
 <Root>
 <RootNode