vb.net - Silverlight TreeView Wont Populate -

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i trying populate treeview in silverlight, having difficulties - appears empty.

i found tutorial (here) on how it, created new project , copied code appears, using c#, , worked perfectly. have tried incorporate project (which uses vb), doesnt work. vb code follows:

xaml

<usercontrol.resources>     <common:hierarchicaldatatemplate x:key="myhierarchicaltemplate" itemssource="{binding items}" >         <textblock text="{binding mystring}" />     </common:hierarchicaldatatemplate> </usercontrol.resources>  <controls:treeview height="200" horizontalalignment="left" margin="280,464,0,0" name="treeview1" verticalalignment="top" width="120" itemtemplate="{staticresource myhierarchicaltemplate}" />

vb code:

public class myitem  public mystring string public items observablecollection(of myitem)  public sub new(byval mystring string, byval paramarray myitems() myitem)     me.mystring = mystring      dim itemsobservablecollection = new observablecollection(of myitem)      each item myitem in myitems         itemsobservablecollection.add(item)     next      me.items = itemsobservablecollection  end sub end class

and populate it:

dim itemssource new observablecollection(of myitem)      itemssource.add(new myitem("hello", new myitem("world"),                                        new myitem("foo")))     itemssource.add(new myitem("moo", new myitem("boo", new myitem("goo"))))         treeview1.itemssource = itemssource

what missing?

edit: have tried debugging project, , "itemssource" collection appears generating correctly, , being assigned treeview1.itemssource fine, nothing displaying. display binding issue?

to use bindings have expose properties- while vb.net isn't great looks items field not property in myitem class, , same mystring.

cheers -


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