abstract-class

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Generic method compile time error

The following code: private ILi开发者_高级运维st<T> DoStuff<T>() { IList<T> res = new List<T>();[详细]

2023-03-23 12:31 分类：问答
Cannot create an instance of the abstract class or interface

I\'m not familiar on using abstract class. I\'m trying to call a abstract class and get this error Cannot create an instance of the abstract class or interface and I already research this error but I[详细]

2023-03-23 03:44 分类：问答
Doubt about instantiating child class of an abstract class

I\'m on a ASP.Net MVC project with LinqToSQL and multilayer. Users cand upload files, basically Excel and Access file and my service layer will do all of its validatio开发者_如何学JAVAn and other stuf[详细]

2023-03-22 16:09 分类：问答
Abstract UserControl inheritance in Visual Studio designer

abstract class CustomControl : UserControl { protected abstra开发者_StackOverflow社区ct int DoStuff();[详细]

2023-03-22 13:59 分类：问答
Copy constructor between derived classes

How do you copy a derived class to another? I\'m terminologically deficient, so I\'ll try to illustrate with an example.[详细]

2023-03-21 22:52 分类：问答
Interface and an Abstract class? [duplicate]

This question already has answers here: Closed 11 years ago. Possible Duplicate: Interface vs Abstract Class (general OO)[详细]

2023-03-21 22:13 分类：问答
abstract class and static methods

I have an abstract class: class A { public: bool loaded_; virtual int load() = 0; } And several derived classes :[详细]

2023-03-21 21:16 分类：问答
Can one abstract class extend another abstract class and increase functionality

I have an abstract class. I want to extend the abstract class by another abstract class and then implement the extended abstract class. Is it possi开发者_开发技巧ble .If yes, whether it\'s a good appr[详细]

2023-03-21 12:28 分类：问答
Is it possible to create an event in an abstract class?

I have abstract class public abstract class BaseClass { public delegate void ContextMenuClickHandler(object sender, Point point);[详细]

2023-03-21 07:38 分类：问答
Is it possible to call method of an Abstract class in derived class or any other class

Is it possible to call method of an Abstract class in derived class or any other class. My code is below, I want to call Abstr\'s Describe() method in Program\'s Main method.[详细]

2023-03-20 22:46 分类：问答