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DbFunctions.CreateDateTimeOffset 方法

[此頁面專屬於 Entity Framework 第 6 版。最新版本可從 'Entity Framework' NuGet 套件取得。如需 Entity Framework 的詳細資訊,請參閱 msdn.com/data/ef。]

用於 LINQ to Entities 查詢時,此方法會叫用標準 EDM 函式 CreateDateTimeOffset 以建立新的 DateTimeOffset 物件。

命名空間:  System.Data.Entity
組件:  EntityFramework (在 EntityFramework.dll 中)

語法

'宣告
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "day")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "hour")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "month")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "year")> _
<DbFunctionAttribute("Edm", "CreateDateTimeOffset")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "minute")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "timeZoneOffset")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "second")> _
Public Shared Function CreateDateTimeOffset ( _
    year As Nullable(Of Integer), _
    month As Nullable(Of Integer), _
    day As Nullable(Of Integer), _
    hour As Nullable(Of Integer), _
    minute As Nullable(Of Integer), _
    second As Nullable(Of Double), _
    timeZoneOffset As Nullable(Of Integer) _
) As Nullable(Of DateTimeOffset)
'用途
Dim year As Nullable(Of Integer)
Dim month As Nullable(Of Integer)
Dim day As Nullable(Of Integer)
Dim hour As Nullable(Of Integer)
Dim minute As Nullable(Of Integer)
Dim second As Nullable(Of Double)
Dim timeZoneOffset As Nullable(Of Integer)
Dim returnValue As Nullable(Of DateTimeOffset)

returnValue = DbFunctions.CreateDateTimeOffset(year, _
    month, day, hour, minute, second, timeZoneOffset)
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "day")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "hour")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "month")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "year")]
[DbFunctionAttribute("Edm", "CreateDateTimeOffset")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "minute")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "timeZoneOffset")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "second")]
public static Nullable<DateTimeOffset> CreateDateTimeOffset(
    Nullable<int> year,
    Nullable<int> month,
    Nullable<int> day,
    Nullable<int> hour,
    Nullable<int> minute,
    Nullable<double> second,
    Nullable<int> timeZoneOffset
)
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"day")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"hour")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"month")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"year")]
[DbFunctionAttribute(L"Edm", L"CreateDateTimeOffset")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"minute")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"timeZoneOffset")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"second")]
public:
static Nullable<DateTimeOffset> CreateDateTimeOffset(
    Nullable<int> year, 
    Nullable<int> month, 
    Nullable<int> day, 
    Nullable<int> hour, 
    Nullable<int> minute, 
    Nullable<double> second, 
    Nullable<int> timeZoneOffset
)
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "day")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "hour")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "month")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "year")>]
[<DbFunctionAttribute("Edm", "CreateDateTimeOffset")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "minute")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "timeZoneOffset")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "second")>]
static member CreateDateTimeOffset : 
        year:Nullable<int> * 
        month:Nullable<int> * 
        day:Nullable<int> * 
        hour:Nullable<int> * 
        minute:Nullable<int> * 
        second:Nullable<float> * 
        timeZoneOffset:Nullable<int> -> Nullable<DateTimeOffset> 
public static function CreateDateTimeOffset(
    year : Nullable<int>, 
    month : Nullable<int>, 
    day : Nullable<int>, 
    hour : Nullable<int>, 
    minute : Nullable<int>, 
    second : Nullable<double>, 
    timeZoneOffset : Nullable<int>
) : Nullable<DateTimeOffset>

參數

傳回值

類型:System.Nullable<DateTimeOffset>
新的日期/時間。

備註

您不可以直接呼叫此函式。 此函式只能出現在 LINQ to Entities 查詢內。 此函式會轉譯為資料庫中的對應函式。

請參閱

參考

DbFunctions 類別

System.Data.Entity 命名空間