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# Enumerable.Max Method (IEnumerable<Decimal>)

February 14, 2014

Returns the maximum value in a sequence of Decimal values.

Namespace:  System.Linq
Assembly:  System.Core (in System.Core.dll)
```public static decimal Max(
this IEnumerable<decimal> source
)
```

#### Parameters

source
Type: System.Collections.Generic.IEnumerable<Decimal>
A sequence of Decimal values to determine the maximum value of.

#### Return Value

Type: System.Decimal
The maximum value in the sequence.

#### Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable<Decimal>. When you use instance method syntax to call this method, omit the first parameter.
ExceptionCondition
ArgumentNullException

source is null.

InvalidOperationException

source contains no elements.

The Max(IEnumerable<Decimal>) method uses the Decimal implementation of IComparable<T> to compare values.

In Visual Basic query expression syntax, an Aggregate Into Max() clause translates to an invocation of Enumerable.Max.

The following code example demonstrates how to use Max(IEnumerable<Int64>) to determine the maximum value in a sequence.

Note:

This code example uses an overload of this overloaded method that is different from the specific overload that this topic describes. To extend the example to this topic, substitute the elements of the source sequence with elements of the appropriate numerical type.

```
List<long> longs = new List<long> { 4294967296L, 466855135L, 81125L };

long max = longs.Max();

outputBlock.Text += String.Format("The largest number is {0}.", max) + "\n";

/*
This code produces the following output:

The largest number is 4294967296.
*/

```

#### Windows Phone OS

Supported in: 8.0, 7.1, 7.0

Windows Phone