private void UpdatePages(ObservableCollection <LoadChunk> pages)
{
if (pages == null || pages.Count == 1)
{
this.Visibility = Visibility.Collapsed;
}
else
{
this.Visibility = Visibility.Visible;
VisiblePages = new ObservableCollection <LoadChunk>(pages.Take(Math.Min(pages.Count, MaxPages)).ToList());
CurrentPage = VisiblePages[0];
CurrentPage.IsSelected = true;
RaisePropertyChanged(() => CurrentPageNo);
}
}
private void UpdateCurrentPage(LoadChunk currentPage)
{
if (Pages == null)
{
return;
}
var currentPageIndex = Pages.IndexOf(currentPage);
if (!VisiblePages.Contains(currentPage))
{
var lastPageIndex = Pages.Count() - 1;
if (Pages.Count <= MaxPages)
{
VisiblePages = new ObservableCollection <LoadChunk>(Pages.ToList());
}
if ((lastPageIndex - currentPageIndex) < MaxPages)
{
var firstindex = Pages.Count - MaxPages;
VisiblePages = new ObservableCollection <LoadChunk>(Pages.Skip(firstindex).Take(MaxPages).ToList());
}
else
{
VisiblePages = new ObservableCollection <LoadChunk>(Pages.Skip(currentPageIndex).Take(MaxPages).ToList());
}
}
foreach (var visiblePage in VisiblePages)
{
visiblePage.IsSelected = (visiblePage == currentPage);
}
if (currentPage != null && currentPage != CurrentPage)
{
CurrentPage = currentPage;
RaisePropertyChanged(() => CurrentPageNo);
}
UpdateButtons();
}