DOT NET Interview Questions - DotNetSpider

c.XyzCallback = null
This will reset all your delegates to nothing and you have to keep figuring where the error
is.
(B) If we inherit a class do the private variables also get
inherited ?
Yes the variables are inherited but can not be accessed directly by the class interface.
(B) What are different accessibility levels defined in .NET ?
Following are the five levels of access modifiers :-
√
√
√
√
√
Private : Only members of class have access.
Protected :-All members in current class and in derived classes can access the
variables.
Friend (internal in C#) :- Only members in current project have access to the
elements.
Protected friend (protected internal in C#) :- All members in current project
and all members in derived class can access the variables.
Public :- All members have access in all classes and projects.
(I) Can you prevent a class from overriding ?
If you define a class as “Sealed” in C# and “NotInheritable” in VB.NET you can inherit
the class any further.
(I) What’s the use of “MustInherit” keyword in VB.NET ?
If you want to create a abstract class in VB.NET it’s done by using “MustInherit”
keyword.This acts only as base type and can not be inherited any further.You can not
create a object of a class which is marked as “MustInherit”.
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*What have your learnt from your past project experiences ?