TwoWayBinding with Listview and XmlDataprovider
===

I searched a lot but I didn't find a solution for my problem.

I have an XML-File 
            

    <Module>
    <Accounting>
    	<tag tagname="tag1" displayname="display1">True</tag>
    	<tag tagname="tag2" displayname="dispaly2">False</tag>
    </Accounting>
    </Module>

And that's my problem:
I want to bind this XML-File to a listview where I can see the displayname and a checkbox where I am able to (un)check the tag (two-way-binding)

my XAML-file:

    <ListView Height="134.113" Width="227.409" Margin="0,-100,30,10">
                        <ListViewItem>
                            <StackPanel>
                                <CheckBox IsChecked="{Binding XPath=./Module/Accounting/tag}">
                                    <TextBlock Text="{Binding XPath=./Module/Accounting/tag/@displayname}"/>
                                </CheckBox>
                            </StackPanel>
                        </ListViewItem>
                    </ListView>

But the listview only displays the first Item "display1" but not the second one.. anyone an idea why?
(could there be any problem because I have (another) xmldataprovider?)

thanks<br>
ps: sorry, english is not my first language ;)


