Queryable.Sum Method (IQueryable<Single>)
.NET Framework (current version)
Computes the sum of a sequence of Single values.
Assembly: System.Core (in System.Core.dll)
Parameters
- source
-
Type:
System.Linq.IQueryable<Single>
A sequence of Single values to calculate the sum of.
| Exception | Condition |
|---|---|
| ArgumentNullException | source is null. |
The Sum(IQueryable<Single>) method generates a MethodCallExpression that represents calling Sum(IQueryable<Single>) itself as a constructed generic method. It then passes the MethodCallExpression to the Execute<'TResult>(Expression) method of the IQueryProvider represented by the Provider property of the source parameter.
The query behavior that occurs as a result of executing an expression tree that represents calling Sum(IQueryable<Single>) depends on the implementation of the type of the source parameter. The expected behavior is that it returns the sum of the values in source.
Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.1
Windows Phone
Available since 8.1
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.1
Windows Phone
Available since 8.1
Show: