public static IObservableCollection <T> ToObservable <T>(this IQueryableObservableCollection <T> @this)
{
var observable = @this as IObservableCollection <T>;
System.Diagnostics.Debug.Assert(observable != null);
if (observable == null)
{
throw new InvalidOperationException("Must implement IObservableCollection<T>");
}
return(observable);
}
public static IQueryableObservableCollection <T> Distinct <T>(this IQueryableObservableCollection <T> @this)
{
return(new DistinctObservableCollection <T>(@this.ToObservable()));
}
public static IQueryableObservableCollection <T> Distinct <T>(this IQueryableObservableCollection <T> @this, IEqualityComparer <T> comparer)
{
return(new DistinctObservableCollection <T>(@this.ToObservable(), comparer));
}
public static IQueryableObservableCollection <T> Where <T>(this IQueryableObservableCollection <T> @this, Func <T, int, bool> predicate)
{
throw new NotImplementedException();
}
public static IQueryableObservableCollection <T> Where <T>(this IQueryableObservableCollection <T> @this, Func <T, bool> predicate)
{
return(new FilteredObservableCollection <T>(@this.ToObservable(), item => predicate(item)));
}
public static IQueryableObservableCollection <TResult> Select <T, TResult>(this IQueryableObservableCollection <T> @this, Func <T, TResult> selector)
{
return(new ProjectedObservableCollection <T, TResult>(@this.ToObservable(), selector));
}
public static IQueryableObservableCollection <TResult> Select <T, TResult>(this IQueryableObservableCollection <T> @this, Func <T, int, TResult> selector)
{
throw new NotImplementedException();
}
public static IOrderedQueryableObservableCollection <TSource> OrderByDescending <TSource, TKey>(this IQueryableObservableCollection <TSource> @this, Func <TSource, TKey> keySelector, IComparer <TKey> comparer)
{
return(new SortedObservableCollection <TSource, TKey>(@this.ToObservable(), keySelector, comparer, true));
}
public static IOrderedQueryableObservableCollection <TSource> OrderBy <TSource, TKey>(this IQueryableObservableCollection <TSource> @this, Func <TSource, TKey> keySelector)
{
return(new SortedObservableCollection <TSource, TKey>(@this.ToObservable(), keySelector, false));
}