Delete behaviors Delete behaviors are defined in the DeleteBehavior enumerator type and can be passed to the OnDelete fluent API to control whether the deletion of a principal/parent entity or the severing of the relationship to dependent/child entit
一.主键 键用作每个实体实例的主要唯一标识符. 使用关系数据库时,这会映射到主键的概念. 还可以配置不是主键的唯一标识符.按照约定,名为 Id 或 <type name>Id 的属性会配置为实体的键.例如下面二个示例: class Car { //映射到Car表 Id主键 public string Id { get; set; } } class Car { //映射到Car表CarId主键,约定格式:<type name>Id public string CarId { get
.net core2.2,生成WebApi或者MVC项目后,Identity 1.增加ApplicationUser.cs文件,内容如下 public class ApplicationUser : IdentityUser<int> { } public class ApplicationRole : IdentityRole<int> { } 2.修改ApplicationDbContext.cs文件,内容如下 public class ApplicationDbContext