//獲取scrollViewer的偏移量
private void scrollViewer1_ScrollChanged(object sender, ScrollChangedEventArgs e)
{
offsetValue = e.HorizontalOffset;
border_Left.Margin = new Thickness(offsetValue, 20, 0, 0);
offsetTop = e.VerticalOffset;
border_top.Margin = new Thickness(20, offsetTop, 0, 0);
}
//根據Grid大小改變設置scrollViewer的偏移量
private void Grid_SizeChanged(object sender, SizeChangedEventArgs e)
{
scrollViewer1.ScrollToHorizontalOffset(grid_1.ActualWidth - LayoutRoot.ActualWidth + 200);
//scrollViewer1.ScrollToVerticalOffset(grid_1.ActualHeight - LayoutRoot.ActualHeight);
}