Queryable.Distinct<TSource> Method (IQueryable<TSource>, IEqualityComparer<TSource>)
Returns distinct elements from a sequence by using a specified IEqualityComparer<T> to compare values.
Assembly: System.Core (in System.Core.dll)
public static IQueryable<TSource> Distinct<TSource>( this IQueryable<TSource> source, IEqualityComparer<TSource> comparer )
Return ValueType: System.Linq.IQueryable< >
An IQueryable<T> that contains distinct elements from source.
The type of the elements of source.
The MethodCallExpression that represents calling itself as a constructed generic method. It then passes the MethodCallExpression to the CreateQuery<TElement>(Expression) method of the IQueryProvider represented by the Provider property of the source parameter.method generates a
The query behavior that occurs as a result of executing an expression tree that represents callingdepends on the implementation of the type of the source parameter. The expected behavior is that it returns an unordered sequence of the unique items in source by using comparer to compare values.
Available since 8
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.1
Available since 8.1