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does multiple inheritance possible in c#

Posted By :siri.k     Posted Date :February 09, 2011    Points :15   Category :C# 
through interfcae we can do multiple inheritance

You can also find related Interview Question to does multiple inheritance possible in c#  below: 

Does C# support multiple inheritance?


C# does not support multiple inheritance. A class can inherit from maximum one base class, although it can implement any number of interfaces. Like Java, C# does not support multiple inheritance, meaning that classes cannot inherit from more than one class (More...)

can we impliment multiple inheritance by using interfaces in C#.net?

yes we can implement:

Inheritance Usage Example:
Here is a syntax example for using Implementation Inheritance.

Class derivedClass:baseClass

derivedClass is derived from baseClass.

Interface Inheritance example:
private Class derivedClass:baseClass , InterfaceX , InterfaceY ....


Explain why java doesn't support multiple inheritance.

Java does not support multiple inheritances. To avoid ambiguity problem - Diamonds of Death - and complexity of multiple inheritance.

The Diamond of Death is a problem without clarity. The Diamond problem is:

Two classes Two and Three inherit from class One. Class Four inherits from both Two and Three. When a method in Four invokes a method that is defined in One, and Two and Three have overridden that method in different way, the ambiguity and complexity occurs - through which class does it inherits: class Two or class Three?

Like wise if it is encouraged to have more than two classes to inherit, the ambiguity raises which leads to future conflict of applications. (More...)

Can we implement Multiple Inheritance by using Abstract Class?

As the abstarct class can contain simple methods also, therefore it doesn't support Multiple Inheritance in DotNet. (More...)

Does Csharp support multiple inheritance?

C sharp doenst support multiple inheritance, but can be achived using interface (More...)

Can code inside multiple catch block be executed?

No, Code can not execute in mutiple catch block (More...)

What is difference between interface inheritance and class inheritance?

We can only inherit from one class but multiple interfaces. In addition, an interface does not contain any implementation it just contains a series of signatures. (More...)

Can we have multiple threads in one App domain ?

One or more threads run in an AppDomain. An AppDomain is a runtime representation of a logical process within a physical process. Each AppDomain is started with a single thread, but can create additional threads from any of its threads.
Note :- All threading classes are defined in System.Threading namespace. (More...)

Is it possible to add multiple Machine.config file?

No, it is not possible to add more than 1 machine.config file. if we want to overwrite any setting than that can be achieve with the help of web.config. (More...)

Can multiple catch blocks be executed for a single try statement?

No. Once the proper catch block processed, control is transferred to the finally block (if any).

So we can not execute multiple catch block in one try block (More...)

How can you cache Multiple Versions of a Page?

Using output cache you can cache multiple versions of the page.

We can either use,.

- @ OutputCache directive at design time declaratively for Declarative Approach

- Response.Cacheclass at runtime for Programmatic Approach .

With @ OutputCache directive four parameters of VaryByParam , VaryByControl, VaryByHeader, VaryByCustom allows user to cache page depending on query string, control value, request's HTTP header, request's HTTP header respectively.

For an example:

To turn off caching,

Declarative Approach:
<%@ OutputCache Location="None" VaryByParam="None" %>

Programmatic Approach:

To cache the output for each HTTP request that arrives with a different ID:

Declarative Approach:
<%@ OutputCache duration="60" varybyparam=" ID" %>

Programmatic Approach:
Response.Cache.VaryByParams["ID"] = true; (More...)

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