<ScrollViewer VerticalScrollBarVisibility="Auto">



<Canvas Name="canvas1">
<ListBox
Grid.Row="0"
Name="PhotosListBox"
Style="{StaticResource PhotoListBoxStyle}"
Margin="5"
Canvas.Left="0" Canvas.Top="0"
SelectionMode="Extended" >
</ListBox>


</Canvas>
</ScrollViewer>
nw scrollbar is not coming n not visible