Artigo
11/18/2011

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

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Counts the number of year boundaries between two nullable dates.

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

Syntax

'Declaration
Public Shared Function DateDiffYear ( _
    startDate As Nullable(Of DateTimeOffset), _
    endDate As Nullable(Of DateTimeOffset) _
) As Nullable(Of Integer)

public static Nullable<int> DateDiffYear(
    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 year 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 year 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.

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