DateDiffMonth Method (Nullable(DateTimeOffset), Nullable(DateTimeOffset))

SqlMethods.DateDiffMonth Method (Nullable<DateTimeOffset>, Nullable<DateTimeOffset>)

Counts the number of month boundaries between two nullable dates.

Namespace:  System.Data.Linq.SqlClient
Assembly:  System.Data.Linq (in System.Data.Linq.dll)

public static Nullable<int> DateDiffMonth(
	Nullable<DateTimeOffset> startDate,
	Nullable<DateTimeOffset> endDate


Type: System.Nullable<DateTimeOffset>

The start date for the time period.

Type: System.Nullable<DateTimeOffset>

The end date for the time period.

Return Value

Type: System.Nullable<Int32>
When both parameters are not null, returns the number of month boundaries between the two specified dates. When one or both parameters are null, returns a null value.

Corresponds to the SQL Server DATEDIFF function; using month to specify the type of time boundary crossed. For more about this SQL Server function, see DATEDIFF in the Microsoft SQL Server Books Online.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5 SP1

Community Additions

© 2015 Microsoft