DbContext Costruttori
Definizione
Importante
Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.
Overload
| DbContext() |
Inizializza una nuova istanza della classe DbContext. Il OnConfiguring(DbContextOptionsBuilder) metodo verrà chiamato per configurare il database (e altre opzioni) da usare per questo contesto. |
| DbContext(DbContextOptions) |
Inizializza una nuova istanza della DbContext classe utilizzando le opzioni specificate. Il OnConfiguring(DbContextOptionsBuilder) metodo verrà comunque chiamato per consentire un'ulteriore configurazione delle opzioni. |
DbContext()
Inizializza una nuova istanza della classe DbContext. Il OnConfiguring(DbContextOptionsBuilder) metodo verrà chiamato per configurare il database (e altre opzioni) da usare per questo contesto.
protected DbContext ();[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("EF Core isn't fully compatible with trimming, and running the application may generate unexpected runtime failures. Some specific coding pattern are usually required to make trimming work properly, see https://aka.ms/efcore-docs-trimming for more details.")]
protected DbContext ();[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("EF Core isn't fully compatible with trimming, and running the application may generate unexpected runtime failures. Some specific coding pattern are usually required to make trimming work properly, see https://aka.ms/efcore-docs-trimming for more details.")]
[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("EF Core isn't fully compatible with NativeAOT, and running the application may generate unexpected runtime failures.")]
protected DbContext ();Protected Sub New ()- Attributi
Commenti
Per altre informazioni ed esempi , vedere Durata, configurazione e inizializzazione di DbContext .
Si applica a
DbContext(DbContextOptions)
Inizializza una nuova istanza della DbContext classe utilizzando le opzioni specificate. Il OnConfiguring(DbContextOptionsBuilder) metodo verrà comunque chiamato per consentire un'ulteriore configurazione delle opzioni.
public DbContext (Microsoft.EntityFrameworkCore.DbContextOptions options);[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("EF Core isn't fully compatible with trimming, and running the application may generate unexpected runtime failures. Some specific coding pattern are usually required to make trimming work properly, see https://aka.ms/efcore-docs-trimming for more details.")]
public DbContext (Microsoft.EntityFrameworkCore.DbContextOptions options);[System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("EF Core isn't fully compatible with trimming, and running the application may generate unexpected runtime failures. Some specific coding pattern are usually required to make trimming work properly, see https://aka.ms/efcore-docs-trimming for more details.")]
[System.Diagnostics.CodeAnalysis.RequiresDynamicCode("EF Core isn't fully compatible with NativeAOT, and running the application may generate unexpected runtime failures.")]
public DbContext (Microsoft.EntityFrameworkCore.DbContextOptions options);new Microsoft.EntityFrameworkCore.DbContext : Microsoft.EntityFrameworkCore.DbContextOptions -> Microsoft.EntityFrameworkCore.DbContext[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("EF Core isn't fully compatible with trimming, and running the application may generate unexpected runtime failures. Some specific coding pattern are usually required to make trimming work properly, see https://aka.ms/efcore-docs-trimming for more details.")>]
new Microsoft.EntityFrameworkCore.DbContext : Microsoft.EntityFrameworkCore.DbContextOptions -> Microsoft.EntityFrameworkCore.DbContext[<System.Diagnostics.CodeAnalysis.RequiresUnreferencedCode("EF Core isn't fully compatible with trimming, and running the application may generate unexpected runtime failures. Some specific coding pattern are usually required to make trimming work properly, see https://aka.ms/efcore-docs-trimming for more details.")>]
[<System.Diagnostics.CodeAnalysis.RequiresDynamicCode("EF Core isn't fully compatible with NativeAOT, and running the application may generate unexpected runtime failures.")>]
new Microsoft.EntityFrameworkCore.DbContext : Microsoft.EntityFrameworkCore.DbContextOptions -> Microsoft.EntityFrameworkCore.DbContextPublic Sub New (options As DbContextOptions)Parametri
- options
- DbContextOptions
Opzioni per questo contesto.
- Attributi
Commenti
Per altre informazioni ed esempi , vedere Durata, configurazione e inizializzazione di DbContexte Uso di DbContextOptions .
