private void OnReloadContentCommand() { switch (LastPivotIndex) { case 0: _audioAlbumsOffset = 0; _audiosOffset = 0; AudioGroup.Refresh(); break; case 1: _videoAlbumsOffset = 0; _videosOffset = 0; VideoGroup.Refresh(); break; case 2: _docsOffset = 0; Documents.Refresh(); break; } }