Enumerable.GroupBy Method
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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.
Overload List
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.gif "Public method") .gif "Static member") .gif "Supported by Silverlight for Windows Phone") .gif "Supported by Xbox 360") |
GroupBy<TSource, TKey>(IEnumerable<TSource>, Func<TSource, TKey>) | Groups the elements of a sequence according to a specified key selector function. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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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. |
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