private bool ReadLibraryFromJson()
{
var jsonFormatter = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(Books[]));
using (var fs = new System.IO.FileStream("Library.json", System.IO.FileMode.OpenOrCreate))
{
if (fs.Length == 0)
{
System.Console.WriteLine("JSON is empty");
}
else
{
var newBooks = (Books[])jsonFormatter.ReadObject(fs);
var lst = Enumerable.ToList(Enumerable.OfType <Books>(newBooks));
System.Console.WriteLine("Done reading from json");
foreach (var b in lst)
{
var book = new Books
{
Author = b.Author,
Title = b.Title,
Annotation = b.Annotation,
Isbn = b.Isbn,
PublicationDate = b.PublicationDate
};
_books.Add(book);
}
}
}
return(true);
}
void SourceCollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Reset)
{
OnCleared();
}
else
{
if (e.OldItems != null)
{
OnRemoveItems(SL.OfType <T>(e.OldItems));
}
if (e.NewItems != null)
{
OnAddItems(SL.OfType <T>(e.NewItems));
}
}
}
private static void RemoveSortGlyph(GridViewColumnHeader columnHeader)
{
var adornerLayer = AdornerLayer.GetAdornerLayer(columnHeader);
if (adornerLayer == null)
{
return;
}
var adorners = adornerLayer.GetAdorners(columnHeader);
if (adorners == null)
{
return;
}
foreach (var adorner in Enumerable.OfType <SortGlyphAdorner>(adorners))
{
adornerLayer.Remove(adorner);
}
}
public override IEnumerator <T> GetEnumerator()
{
return(SL.OfType <T>(Source).GetEnumerator());
}