Can't disable vertical scroll viewer if control size less than list box size

Question

When my control have size less than listbox verticalscrollviewer enables automatically.

<ListBox Name="listBox" ItemsSource="{Binding DropPlaces}"
                 ScrollViewer.HorizontalScrollBarVisibility="Disabled" ScrollViewer.VerticalScrollBarVisibility="Disabled">
    <ListBox.ItemsPanel>
        <ItemsPanelTemplate>
            <WrapPanel FlowDirection="LeftToRight" Orientation="Horizontal" />
        </ItemsPanelTemplate>
    </ListBox.ItemsPanel>
    <ListBox.ItemTemplate>
        ...
    </ListBox.ItemTemplate>
</ListBox>

Answer 1

Try setting the ScrollViewer.VerticalScrollBarVisibility to auto

http://msdn.microsoft.com/en-us/library/system.windows.controls.scrollbarvisibility(v=vs.110).aspx

Answer 2

You can set ScrollViewer.VerticalScrollBarVisibility to Disable or Auto. It's more effective if you also set VerticalContentAlignment to Stretch.

I hope this answer will helpful for you.