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SqlFunctions::DateDiff Method (String, Nullable<DateTime>, Nullable<DateTime>)
Visual Studio 2010
Returns the count of the specified datepart boundaries crossed between the specified start date and end date.
Assembly: System.Data.Entity (in System.Data.Entity.dll)
[EdmFunctionAttribute(L"SqlServer", L"DATEDIFF")] public: static Nullable<int> DateDiff( String^ datePartArg, Nullable<DateTime> startDate, Nullable<DateTime> endDate )
Parameters
- datePartArg
- Type: System::String
The part of the date to calculate the differing number of time intervals.
- startDate
- Type: System::Nullable<DateTime>
The first date.
- endDate
- Type: System::Nullable<DateTime>
The second date.
You cannot call this function directly. This function can only appear within a LINQ to Entities query.
This function is translated to a corresponding function in the database. For information about the corresponding SQL Server function, see DATEDIFF (Transact-SQL).
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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