Enumerable.GroupBy Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Include Protected Members
Include Inherited Members

Include Silverlight Members
Include Silverlight for Windows Phone Members
Include XNA Framework Members

Groups the elements of a sequence.

This member is overloaded. For complete information about this member, including syntax, usage, and examples, click a name in the overload list.

OverloadĀ List

Ā  Name Description
Public methodStatic memberSupported by Silverlight for Windows PhoneSupported by Xbox 360 GroupBy<TSource, TKey>(IEnumerable<TSource>, Func<TSource, TKey>) Groups the elements of a sequence according to a specified key selector function.
Public methodStatic memberSupported by Silverlight for Windows PhoneSupported by Xbox 360 GroupBy<TSource, TKey>(IEnumerable<TSource>, Func<TSource, TKey>, IEqualityComparer<TKey>) Groups the elements of a sequence according to a specified key selector function and compares the keys by using a specified comparer.
Public methodStatic memberSupported by Silverlight for Windows PhoneSupported by Xbox 360 GroupBy<TSource, TKey, TElement>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TSource, TElement>) Groups the elements of a sequence according to a specified key selector function and projects the elements for each group by using a specified function.
Public methodStatic memberSupported by Silverlight for Windows PhoneSupported by Xbox 360 GroupBy<TSource, TKey, TResult>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TKey, IEnumerable<TSource>, TResult>) Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key.
Public methodStatic memberSupported by Silverlight for Windows PhoneSupported by Xbox 360 GroupBy<TSource, TKey, TElement>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TSource, TElement>, IEqualityComparer<TKey>) Groups the elements of a sequence according to a key selector function. The keys are compared by using a comparer and each group's elements are projected by using a specified function.
Public methodStatic memberSupported by Silverlight for Windows PhoneSupported by Xbox 360 GroupBy<TSource, TKey, TElement, TResult>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TSource, TElement>, Func<TKey, IEnumerable<TElement>, TResult>) Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The elements of each group are projected by using a specified function.
Public methodStatic memberSupported by Silverlight for Windows PhoneSupported by Xbox 360 GroupBy<TSource, TKey, TResult>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TKey, IEnumerable<TSource>, TResult>, IEqualityComparer<TKey>) Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. The keys are compared by using a specified comparer.
Public methodStatic memberSupported by Silverlight for Windows PhoneSupported by Xbox 360 GroupBy<TSource, TKey, TElement, TResult>(IEnumerable<TSource>, Func<TSource, TKey>, Func<TSource, TElement>, Func<TKey, IEnumerable<TElement>, TResult>, IEqualityComparer<TKey>) Groups the elements of a sequence according to a specified key selector function and creates a result value from each group and its key. Key values are compared by using a specified comparer, and the elements of each group are projected by using a specified function.

Top