Enumerable.Sum Method (IEnumerable(Of Int32))
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Computes the sum of a sequence of Int32 values.
Assembly: System.Core (in System.Core.dll)
'Declaration <ExtensionAttribute> _ Public Shared Function Sum ( _ source As IEnumerable(Of Integer) _ ) As Integer
Parameters
- source
- Type: System.Collections.Generic.IEnumerable(Of Int32)
A sequence of Int32 values to calculate the sum of.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable(Of Int32). When you use instance method syntax to call this method, omit the first parameter.| Exception | Condition |
|---|---|
| ArgumentNullException | source is Nothing. |
| OverflowException | The sum is larger than MaxValue. |
The following code example demonstrates how to use Sum(IEnumerable(Of Single)) to sum the values of a sequence.
Note: |
|---|
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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. |
' Create a list of Single values.
Dim numbers As New List(Of Single)(New Single() _
{43.68F, 1.25F, 583.7F, 6.5F})
' Get the sum of values in the list.
Dim sum As Single = numbers.Sum()
' Display the output.
outputBlock.Text &= "The sum of the numbers is " & sum & vbCrLf
' This code produces the following output:
'
' The sum of the numbers is 635.13
Note: