SqlMethods.DateDiffSecond Method (Nullable<DateTime>, Nullable<DateTime>)


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Counts the number of second boundaries between two nullable dates.

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

public static Nullable<int> DateDiffSecond(
	Nullable<DateTime> startDate,
	Nullable<DateTime> endDate


Type: System.Nullable<DateTime>

The start date for the time period.

Type: System.Nullable<DateTime>

The end date for the time period.

Return Value

Type: System.Nullable<Int32>

When both parameters are not null, returns the number of second 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 second to specify the type of time boundary crossed. For more about this SQL Server function, see DATEDIFF in the Microsoft SQL Server Books Online.

.NET Framework
Available since 3.5
Windows Phone Silverlight
Available since 7.1
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