SqlMethods.DateDiffSecond Method (Nullable<DateTimeOffset>, Nullable<DateTimeOffset>)
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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)
Syntax
'Declaration
Public Shared Function DateDiffSecond ( _
startDate As Nullable(Of DateTimeOffset), _
endDate As Nullable(Of DateTimeOffset) _
) As Nullable(Of Integer)
public static Nullable<int> DateDiffSecond(
Nullable<DateTimeOffset> startDate,
Nullable<DateTimeOffset> endDate
)
Parameters
- startDate
Type: System.Nullable<DateTimeOffset>
The start date for the time period.
- endDate
Type: System.Nullable<DateTimeOffset>
The end date for the time period.
Return Value
Type: System.Nullable<Int32>
When both parameters are not nulla null reference (Nothing in Visual Basic), returns the number of second boundaries between the two specified dates. When one or both parameters are nulla null reference (Nothing in Visual Basic), returns a nulla null reference (Nothing in Visual Basic) value.
Remarks
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.
Version Information
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.