DateDiff Method (String, Nullable(DateTimeOffset), String)

SqlFunctions::DateDiff Method (String^, Nullable<DateTimeOffset>, String^)

.NET Framework 4.6 and 4.5

Returns the count of the specified datepart boundaries crossed between the specified start date and end date.

Namespace:   System.Data.Objects.SqlClient
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

[EdmFunctionAttribute("SqlServer", "DATEDIFF")]
static Nullable<int> DateDiff(
	String^ datePartArg,
	Nullable<DateTimeOffset> startDate,
	String^ endDate


Type: System::String^

The part of the date to calculate the differing number of time intervals.

Type: System::Nullable<DateTimeOffset>

The first date.

Type: System::String^

The second date.

Return Value

Type: System::Nullable<Int32>

The number of time intervals between the two dates.

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).

.NET Framework
Available since 4.0
Return to top
© 2015 Microsoft