Base Class Doesn't Contain Parameterless Constructor?

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Base Class Doesn't Contain Parameterless Constructor?

http://stackoverflow.com/questions/7689742/base-class-doesnt-contain-parameterless-constructor #region Assembly System.Data.Entity, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089// C:\Program Files (x86)\Reference Assemblies\Micros…

AddDbContext was called with configuration, but the context type 'NewsContext' only declares a parameterless constructor?

问题 An error occurred while starting the application. ArgumentException: AddDbContext was called with configuration, but the context type 'NewsContext' only declares a parameterless constructor. This means that the configuration passed to AddDbContext…

AddDbContext was called with configuration, but the context type 'MyDBContext' only declares a parameterless constructor

System.ArgumentException HResult=0x80070057 Message=AddDbContext was called with configuration, but the context type 'MyDBContext' only declares a parameterless constructor. This means that the configuration passed to AddDbContext will never be used.…

Base class does not contain a constructor that takes '0' argument

刚刚在写一段直播室网站中的一段程序遇,突然遇到一个错误,如下 'TVLLKBLL.BaseClass' does not contain a constructor that takes 0 arguments,根据撑握的C#知道来剖析一下该错误的原因俱体情况是这样的,业务逻辑中有两个类,分别是 Public class BaseClass { public BaseClass (string sql) { } } Public class BaseClassHelp:BaseClass {…

no parameterless constructor define for type 解决一例

在生成根据模型和上下文生成带增删查改操作的视图的控制器时,提示上述信息,网上查找了资料也没有解决,突然想起该项目是连接MSSQL数据库和Redis数据库的,并且已经依赖注入了,而Redis数据库的服务器却因故关闭了,把Redis的注入注释了就正常生成了. services.AddDbContext<CustomDbContext>(options => options.UseSqlServer( Configuration.GetConnectionString("Defaul…

[Java Basics] Stack, Heap, Constructor, I/O, Immutable, ClassLoader

Good about Java: friendly syntax, memory management[GC can collect unreferenced memory resources], object-oriented features, portability. Stack Stores method invocations, local variables(include object reference, but the object itself is still stored…

Virtual member call in a constructor

http://stackoverflow.com/questions/119506/virtual-member-call-in-a-constructor (Assuming you're writing in C# here) When an object written in C# is constructed, what happens is that the initializers run in order from the most derived class to the bas…