Tree View Issue

I am parsing an XML file to construct my data model for the tree view.
Tree view is being constructed , but when I expand my root node, its children including their subchildren are shown.
Behaviour should be that on clicking a parent node , its immediate children should be shown i.e 1level hierarchy .
But in my case subchildrens of a child are also shown on expanding my root node.(beyond 1 level hierarchy).
Is there any way to prevent showing of subchildrens on expanding parent node.
e.g
A->
    B->
        C
        D
In above example when expanding A , only B should be shown.But in my case C &D are also shown.
Also button used for expanding subnodes of B is shown as unexpanded .(i.e its not upside down even though its children are expanded)

Hi,
I believe it is just administrators that can view it in tree mode, unless somebody knows any different.
Cheers
John
http://john-goodwin.blogspot.com/

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Hi,
I believe it is just administrators that can view it in tree mode, unless somebody knows any different.
Cheers
John
http://john-goodwin.blogspot.com/

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Hope to get further help for this object development.
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