[은빛] Silverlight Gridsplitter가 왼쪽으로 미끄러지지 않음

HorizontalAlignment를 Stretch로 설정해보십시오.

    <sdk:GridSplitter Grid.Row="0" Grid.Column="1"
        HorizontalAlignment="Stretch" 
                VerticalAlignment="Stretch">
                    </sdk:GridSplitter>
                    

출처
https://stackoverflow.com/questions/22019862