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ReaderColumn.Create Metodo

  • Riferimento

Definizione

Spazio dei nomi:
Microsoft.EntityFrameworkCore.Storage
Assembly:
Microsoft.EntityFrameworkCore.Relational.dll
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v3.1.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v8.0.0

Overload

Create(Type, Boolean, String, Object)
Obsoleti.

Crea un'istanza di ReaderColumn<T>.
Create(Type, Boolean, String, IPropertyBase, Object)

Crea un'istanza di ReaderColumn<T>.

Create(Type, Boolean, String, Object)

Attenzione

Use method which also takes IPropertyBase.

Crea un'istanza di ReaderColumn<T>.

public static Microsoft.EntityFrameworkCore.Storage.ReaderColumn Create (Type type, bool nullable, string columnName, object readFunc);
[System.Obsolete("Use method which also takes IPropertyBase.")]
public static Microsoft.EntityFrameworkCore.Storage.ReaderColumn Create (Type type, bool nullable, string columnName, object readFunc);
[System.Obsolete("Use method which also takes IPropertyBase.")]
public static Microsoft.EntityFrameworkCore.Storage.ReaderColumn Create (Type type, bool nullable, string? columnName, object readFunc);
static member Create : Type * bool * string * obj -> Microsoft.EntityFrameworkCore.Storage.ReaderColumn
[<System.Obsolete("Use method which also takes IPropertyBase.")>]
static member Create : Type * bool * string * obj -> Microsoft.EntityFrameworkCore.Storage.ReaderColumn
Public Shared Function Create (type As Type, nullable As Boolean, columnName As String, readFunc As Object) As ReaderColumn

Parametri

type
Type

Tipo di colonna.

nullable
Boolean

Indica se la colonna può contenere valori null.

columnName
String

Nome della colonna se viene usato per accedere ai valori di colonna, null in caso contrario.

readFunc
Object

Oggetto System.Func{DbDataReader, Int32[], T} utilizzato per ottenere il valore del campo per questa colonna.

Restituisce

ReaderColumn

Istanza di ReaderColumn<T>.

Attributi
ObsoleteAttribute

Si applica a

Create(Type, Boolean, String, IPropertyBase, Object)

Crea un'istanza di ReaderColumn<T>.

public static Microsoft.EntityFrameworkCore.Storage.ReaderColumn Create (Type type, bool nullable, string columnName, Microsoft.EntityFrameworkCore.Metadata.IPropertyBase property, object readFunc);
public static Microsoft.EntityFrameworkCore.Storage.ReaderColumn Create (Type type, bool nullable, string? columnName, Microsoft.EntityFrameworkCore.Metadata.IPropertyBase? property, object readFunc);
static member Create : Type * bool * string * Microsoft.EntityFrameworkCore.Metadata.IPropertyBase * obj -> Microsoft.EntityFrameworkCore.Storage.ReaderColumn
Public Shared Function Create (type As Type, nullable As Boolean, columnName As String, property As IPropertyBase, readFunc As Object) As ReaderColumn

Parametri

type
Type

Tipo di colonna.

nullable
Boolean

Indica se la colonna può contenere valori null.

columnName
String

Nome della colonna se viene usato per accedere ai valori di colonna, null in caso contrario.

property
IPropertyBase

La proprietà in corso di lettura se presente, null in caso contrario.

readFunc
Object

Oggetto System.Func{DbDataReader, Int32[], T} utilizzato per ottenere il valore del campo per questa colonna.

Restituisce

ReaderColumn

Istanza di ReaderColumn<T>.

Si applica a