/// exposed in <see cref="T:Microsoft.EntityFrameworkCore.DbSet`1" /> properties on your derived context. The resulting model may be cached /// and re-used for subsequent instances of your derived context. /// /// <remarks> /// If a model is explicitly set on the options for th...
Entity Framework Core 5.0 CosmosQueryableExtensions DbContext DbContext 建構函式 屬性 方法 Add AddAsync AddRange AddRangeAsync Attach AttachRange Dispose DisposeAsync Entry Find FindAsync FromExpression OnConfiguring OnModelCreating Remove RemoveRange
重写OnModelCreating,控制生成表名的单复数 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 publicclassMYDbContext : DbContext { publicDbSet<User> Users {get;set; } publicTYDbContext() :base("name=MYEntities") { } protectedoverridevoidOnModelCreating(DbModelBuilder modelBuilder) { //按mod...
但对于EntityFramework中的特性，就要在实体类中引入EntityFramework程序集，但实体类最好能是保持与架构无...
Data.Entity.Infrastructure 程序集: EntityFramework.dll 在上下文中运行 OnModelCreating 后,将在 DbModelBuilder 上运行的操作。 C# 复制 public virtual Action<System.Data.Entity.DbModelBuilder> OnModelCreating { get; set; } 属性值 Action<DbModelBuilder> 适用于 产品版本 Entity Framework 4.3.1, ...
組件: Microsoft.AspNetCore.Identity.EntityFrameworkCore.dll 套件: Microsoft.AspNetCore.Identity.EntityFrameworkCore v8.0.0 來源: IdentityDbContext.cs 設定身分識別架構所需的架構。 C# 複製 protected override void OnModelCreating (Microsoft.EntityFrameworkCore.ModelBuilder builder)...
public string Nome { get; set; } = ""; } 然后,我需要在DbContext.OnModelCreating上为每个DbSet<>获取此属性: protected override void OnModelCreating(ModelBuilder modelBuilder) { foreach (var entityType in modelBuilder.Model.GetEntityTypes()) ...
Entity Framework Code First的默认主键约束:属性名为[ID]或[类名 + ID]。如在Product类中,Entity Framework Code First会根据默认约定将类中名称为ID或ProductID的属性设置为主键。Entity Framework Code First主键的默认约定也一样可以进行重写,重新根据需要进行设置。
解决方案: 禁止上下创建、 修改、删除,默认为true public DataDbContext() : base("name=DataDbContext") { this.Database.Initialize(false); }
Namespace: Microsoft.EntityFrameworkCore Assembly: Microsoft.EntityFrameworkCore.dll Package: Microsoft.EntityFrameworkCore v9.0.0 Source: DbContext.cs Override this method to further configure the model that was discovered by convention from the entity types exposed in DbSet<TEntity> properties ...