How to remove the tree node from Cube Dimension Browser?

protected void Page_Load(object sender, EventArgs e)
{
        this.OlapClient1.CubeDimensionBrowser.TreeNodeExpanded += new            TreeNodeEventHandler(CubeDimensionBrowser_TreeNodeExpanded);
}
protected void CubeDimensionBrowser_TreeNodeExpanded(object sender, TreeNodeEventArgs e)
{
            TreeNodeCollection tree = e.Node.ChildNodes;
            for (int i = tree.Count - 1; i >= 0; i--)
            {
                if (tree[i].Text == "Internet Sales Amount")
                    tree.RemoveAt(i);
            }
} 

Protected Sub Page_Load(sender As Object, e As EventArgs)    Me.OlapClient1.CubeDimensionBrowser.TreeNodeExpanded += New TreeNodeEventHandler(AddressOf CubeDimensionBrowser_TreeNodeExpanded)End Sub
Protected Sub CubeDimensionBrowser_TreeNodeExpanded(sender As Object, e As TreeNodeEventArgs)    Dim tree As TreeNodeCollection = e.Node.ChildNodes    For i As Integer = tree.Count - 1 To 0 Step -1        If tree(i).Text = "Internet Sales Amount" Then            tree.RemoveAt(i)        End If    NextEnd Sub