DbFunctions.CreateDateTime, méthode
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Lorsqu'elle est utilisée dans le cadre d'une requête LINQ to Entities, cette méthode appelle la fonction EDM canonique CreateDateTime pour créer un objet DateTime.
Espace de noms : System.Data.Entity
Assembly : EntityFramework (dans EntityFramework.dll)
Syntaxe
'Déclaration
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "year")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "second")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "month")> _
<DbFunctionAttribute("Edm", "CreateDateTime")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "minute")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "day")> _
<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId := "hour")> _
Public Shared Function CreateDateTime ( _
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) _
) As Nullable(Of DateTime)
'Utilisation
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 returnValue As Nullable(Of DateTime)
returnValue = DbFunctions.CreateDateTime(year, _
month, day, hour, minute, second)
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "year")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "second")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "month")]
[DbFunctionAttribute("Edm", "CreateDateTime")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "minute")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "day")]
[SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "hour")]
public static Nullable<DateTime> CreateDateTime(
Nullable<int> year,
Nullable<int> month,
Nullable<int> day,
Nullable<int> hour,
Nullable<int> minute,
Nullable<double> second
)
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"year")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"second")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"month")]
[DbFunctionAttribute(L"Edm", L"CreateDateTime")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"minute")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"day")]
[SuppressMessageAttribute(L"Microsoft.Usage", L"CA1801:ReviewUnusedParameters", MessageId = L"hour")]
public:
static Nullable<DateTime> CreateDateTime(
Nullable<int> year,
Nullable<int> month,
Nullable<int> day,
Nullable<int> hour,
Nullable<int> minute,
Nullable<double> second
)
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "year")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "second")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "month")>]
[<DbFunctionAttribute("Edm", "CreateDateTime")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "minute")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "day")>]
[<SuppressMessageAttribute("Microsoft.Usage", "CA1801:ReviewUnusedParameters", MessageId = "hour")>]
static member CreateDateTime :
year:Nullable<int> *
month:Nullable<int> *
day:Nullable<int> *
hour:Nullable<int> *
minute:Nullable<int> *
second:Nullable<float> -> Nullable<DateTime>
public static function CreateDateTime(
year : Nullable<int>,
month : Nullable<int>,
day : Nullable<int>,
hour : Nullable<int>,
minute : Nullable<int>,
second : Nullable<double>
) : Nullable<DateTime>
Paramètres
- year
Type : System.Nullable<Int32>
Année.
- month
Type : System.Nullable<Int32>
Mois (de base 1).
- day
Type : System.Nullable<Int32>
Jour (de base 1).
- hour
Type : System.Nullable<Int32>
Heures.
- minute
Type : System.Nullable<Int32>
Minutes.
- second
Type : System.Nullable<Double>
Secondes, y compris les parties fractionnaires des secondes si vous le souhaitez.
Valeur de retour
Type : System.Nullable<DateTime>
Nouvelle date/heure.
Notes
Vous ne pouvez pas appeler directement cette fonction. Cette fonction peut s'afficher uniquement dans une requête LINQ to Entities. Cette fonction est traduite en une fonction correspondante dans la base de données.