DbContext 构造函数
定义
重要
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重载
| DbContext() |
初始化 DbContext 类的新实例。 OnConfiguring(DbContextOptionsBuilder)将调用 方法来配置数据库 (以及) 用于此上下文的其他选项。 |
| DbContext(DbContextOptions) |
使用指定的选项初始化 类的新实例 DbContext 。 OnConfiguring(DbContextOptionsBuilder)仍会调用 方法以允许进一步配置选项。 |
DbContext()
初始化 DbContext 类的新实例。 OnConfiguring(DbContextOptionsBuilder)将调用 方法来配置数据库 (以及) 用于此上下文的其他选项。
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 ()- 属性
注解
有关详细信息 和示例，请参阅 DbContext 生存期、配置和初始化 。
适用于
DbContext(DbContextOptions)
使用指定的选项初始化 类的新实例 DbContext 。 OnConfiguring(DbContextOptionsBuilder)仍会调用 方法以允许进一步配置选项。
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)参数
- options
- DbContextOptions
此上下文的选项。
- 属性
注解
有关详细信息和示例，请参阅 DbContext 生存期、配置和初始化和使用 DbContextOptions。
