Exemplo n.º 1
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 /// <summary>Determines whether a sequence contains a specified element by using the default equality comparer.</summary>
 /// <returns>true if the source sequence contains an element that has the specified value; otherwise, false.</returns>
 /// <param name="source">A sequence in which to locate a value.</param>
 /// <param name="value">The value to locate in the sequence.</param>
 /// <typeparam name="TSource">The type of the elements of <paramref name="source" />.</typeparam>
 /// <exception cref="T:System.ArgumentNullException">
 /// <paramref name="source" /> is null.</exception>
 public static IBindable <bool> Contains <TSource>(this IBindableCollection <TSource> source, TSource value) where TSource : class
 {
     return(source.Contains(value, null));
 }