调用 DeleteAsync 时获取模糊匹配发现异常

Question

我有一个 table，它使用代码作为主键而不是 Id，当我调用 DeleteAsync 方法时，我得到异常 Ambiguous match found.

[Table("Test")]

public class Test: FullAuditedEntity<int>

{

[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
new public int Id { get; set; }
[Key]
[DatabaseGenerated(DatabaseGeneratedOption.None)]
public virtual int Code { get; set; }

_testRepository.DeleteAsync(code);

堆栈跟踪：

   at System.RuntimeType.GetPropertyImpl(String name, BindingFlags 
bindingAttr, Binder binder, Type returnType, Type[] types, ParameterModifier[] modifiers)
   at System.Type.GetProperty(String name, BindingFlags bindingAttr)
   at System.Reflection.TypeExtensions.GetProperty(Type type, String name, BindingFlags bindingAttr)
   at System.Linq.Expressions.Expression.PropertyOrField(Expression expression, String propertyOrFieldName)
   at Abp.Domain.Repositories.AbpRepositoryBase`2.CreateEqualityExpressionForId(TPrimaryKey id) in D:\Github\aspnetboilerplate\src\Abp\Domain\Repositories\AbpRepositoryBase.cs:line 310
   at Abp.Domain.Repositories.AbpRepositoryBase`2.FirstOrDefault(TPrimaryKey id) in D:\Github\aspnetboilerplate\src\Abp\Domain\Repositories\AbpRepositoryBase.cs:line 108
   at Abp.EntityFrameworkCore.Repositories.EfCoreRepositoryBase`3.Delete(TPrimaryKey id) in D:\Github\aspnetboilerplate\src\Abp.EntityFrameworkCore\EntityFrameworkCore\Repositories\EfCoreRepositoryBaseOfTEntityAndTPrimaryKey.cs:line 216
   at Abp.Domain.Repositories.AbpRepositoryBase`2.DeleteAsync(TPrimaryKey id) in D:\Github\aspnetboilerplate\src\Abp\Domain\Repositories\AbpRepositoryBase.cs:line 206
   at Castle.Proxies.Invocations.IRepository`2_DeleteAsync_58.InvokeMethodOnTarget()
   at Castle.DynamicProxy.AbstractInvocation.Proceed()
   at Abp.Domain.Uow.UnitOfWorkInterceptor.PerformAsyncUow(IInvocation invocation, UnitOfWorkOptions options) in D:\Github\aspnetboilerplate\src\Abp\Domain\Uow\UnitOfWorkInterceptor.cs:line 83
   at Castle.DynamicProxy.AbstractInvocation.Proceed()
   at Castle.Proxies.IRepository`2Proxy_16.DeleteAsync(Int32 id)
   at Nec.Stanchion.Business.Services.Suppliers.SupplierAppService.<DeleteSupplier>d__3.MoveNext() in C:\Users\viveknuna\source\repos\Stanchion\aspnet-core\src\Nec.Stanchion.Business.Services\Suppliers\SupplierAppService.cs:line 53

Answer 1

Ambiguous match found 可能是由于属性在 Entity Framework 中隐藏了 Id。 FullAuditedEntity<int> 已经定义 Id 与您所做的相同，因此您可以删除它。

另一方面，_testRepository.DeleteAsync(code)通过比较Id删除。要按 code 删除，请执行 _testRepository.DeleteAsync(test => test.Code == code);

调用 DeleteAsync 时获取模糊匹配发现异常

Getting Ambiguous match found exception while calling DeleteAsync

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