# Enumerable.Sum Method

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Computes the sum of a sequence of numeric values.

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

Name Description    Sum(IEnumerable<Decimal>) Computes the sum of a sequence of Decimal values.    Sum(IEnumerable<Nullable<Decimal>>) Computes the sum of a sequence of nullable Decimal values.    Sum(IEnumerable<Double>) Computes the sum of a sequence of Double values.    Sum(IEnumerable<Nullable<Double>>) Computes the sum of a sequence of nullable Double values.    Sum(IEnumerable<Int32>) Computes the sum of a sequence of Int32 values.    Sum(IEnumerable<Nullable<Int32>>) Computes the sum of a sequence of nullable Int32 values.    Sum(IEnumerable<Int64>) Computes the sum of a sequence of Int64 values.    Sum(IEnumerable<Nullable<Int64>>) Computes the sum of a sequence of nullable Int64 values.    Sum(IEnumerable<Nullable<Single>>) Computes the sum of a sequence of nullable Single values.    Sum(IEnumerable<Single>) Computes the sum of a sequence of Single values.    Sum<TSource>(IEnumerable<TSource>, Func<TSource, Decimal>) Computes the sum of the sequence of Decimal values that are obtained by invoking a transform function on each element of the input sequence.    Sum<TSource>(IEnumerable<TSource>, Func<TSource, Double>) Computes the sum of the sequence of Double values that are obtained by invoking a transform function on each element of the input sequence.    Sum<TSource>(IEnumerable<TSource>, Func<TSource, Int32>) Computes the sum of the sequence of Int32 values that are obtained by invoking a transform function on each element of the input sequence.    Sum<TSource>(IEnumerable<TSource>, Func<TSource, Int64>) Computes the sum of the sequence of Int64 values that are obtained by invoking a transform function on each element of the input sequence.    Sum<TSource>(IEnumerable<TSource>, Func<TSource, Nullable<Decimal>>) Computes the sum of the sequence of nullable Decimal values that are obtained by invoking a transform function on each element of the input sequence.    Sum<TSource>(IEnumerable<TSource>, Func<TSource, Nullable<Double>>) Computes the sum of the sequence of nullable Double values that are obtained by invoking a transform function on each element of the input sequence.    Sum<TSource>(IEnumerable<TSource>, Func<TSource, Nullable<Int32>>) Computes the sum of the sequence of nullable Int32 values that are obtained by invoking a transform function on each element of the input sequence.    Sum<TSource>(IEnumerable<TSource>, Func<TSource, Nullable<Int64>>) Computes the sum of the sequence of nullable Int64 values that are obtained by invoking a transform function on each element of the input sequence.    Sum<TSource>(IEnumerable<TSource>, Func<TSource, Nullable<Single>>) Computes the sum of the sequence of nullable Single values that are obtained by invoking a transform function on each element of the input sequence.    Sum<TSource>(IEnumerable<TSource>, Func<TSource, Single>) Computes the sum of the sequence of Single values that are obtained by invoking a transform function on each element of the input sequence.

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