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Delegates and Generics in c#
What is the advantage of using delegates and Generics in c# .
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sutanu_halder- Member Since Dec-2007 | Apr 18th, 2008
Advantage of Generic:-
1. Generics provide type safety without the overhead of multiple implementations.
Ex. We can create a linked list of string.
LinkedList<string>linkList=new LinkedList<string>();
There is no need to inherit from a base type and override members.The linked list is ready
for immediate use.
2. There is no need to write code to test for the correct data type because it is enforced
at compile time. The need for type casting and the possibility of run-time errors are
reduced.
3. Generic collection types generally perform better for storing and manipulating value
types because there is no need to box the value types.
4. Generic delegates enable type-safe callbacks without the need to create multiple delegate
classes.
5.Generic delegates can also be used in dynamically generated code without requiring the
generation of a delegate type. This increases the number of scenarios in which you can use
lightweight dynamic methods instead of generating entire assemblies.
Advantage of Delegate:
Delegates are managed function pointers. they are type checked and held in spaces that can
be reclaimed by the memory manager.chintan.desai
- Aug 7th, 2009
Adding on sutanu_halder answer: 1. Delegate executes asynchronousely, while Generice execute synchronousely. 2. Delegate is not type safe. We can define anonymous method which can execute without creating delegate object in memory. Generic is type-safe.
sutanu_halder
- Apr 23rd, 2008
Advantage of Generic:-1. Generics provide type safety without the overhead of multiple implementations.Ex. We can create a linked list of string. LinkedList<string>linkList=new...
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C# Calender Days
How to find out how many calender days are there between two dates in c#.net?
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wyverex- Member Since May-2008 | May 13th, 2008
DateTime t1 = new DateTime(2008, 5, 13);
DateTime t2 = new DateTime(2004, 2, 22);
TimeSpan span = (t1 > t2 ? t1 - t2 : t2 - t1);
Console.WriteLine(span.TotalDays);ngobeseb
- Nov 4th, 2009
Here is the better answer:DateTime fDate = DateTime.Now;int thisDay = fDate.DayOfYear; //if today's date is 31/12/2008, thisDay will be 365 and if today's date is 01/01/2009, thisDay will be 1.Therefore, you can use DayOfYear propery to get the day number in a year.
dhanu_mitra
- Jan 1st, 2009
public void DateDiff(){ DateTime startDate = DateTime.Parse("11/12/2008"); DateTime endDate = DateTime.Parse("11/12/2009"); &n...
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Advantages of static class over class ?
When to use static class and when to use normal class ?
Sunil
- Aug 31st, 2014
WHEN SHOULD WE DO THIS: When we have a normal class and its methods being used very frequently in a given app, then it would speed up things if we made this class a static class with static methods. T...
Knoxille_25
- Aug 19th, 2014
A static class can make your implementation simpler and faster because you do not have to create an object in order to invoke its methods. It is useful to organize the methods inside the class in a meaningful way, such as the methods of the Math class in the System namespace.
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'this' in C#
Explain about 'this' and where and when it should be used?
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Charlito- Member Since Apr-2008 | Apr 3rd, 2008
The 'this' keyword in C# is used to reference the current class instance.
It can be optionally used as a qualifier in referencing the fields, properties or methods of the current instance of the class.chintan.desai
- Aug 7th, 2009
I. this keyword refer to current instance. ii.this keyword help to provide intellisense support during debugging.
Charlito
- Apr 3rd, 2008
The 'this' keyword in C# is used to reference the current class instance.It can be optionally used as a qualifier in referencing the fields, properties or methods of the current instance of the class.
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ByteArray Class
Write a class called ByteArray that implement allocating, reading and writing to an array of bytes. The runtime environment has a limitation. The maximum continuous memory size that it can allocated is 64k bytes. It can allocate many 64K ( or less) chunks. The ByteArray class should hide this limitation and support allocating arrays larger than 64K as in the following example :ByteArray ba = new ByteArray...
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Reference variable of Interface
It is possible to create the reference variable of an Interface which is 100% abstract in nature.Then why it is not possible to create a reference of an Abstract class?
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Describe the accessibility modifier protected internal.
It is available to derived classes and classes within the same Assembly (and naturally from the base class it is declared in).
Harsh
- Jul 29th, 2011
Protected Internal Mean its a combination of Protected and Internal access modifier, Protected Internal member can be access from same assembly as well as only derived class l in another assembly.
sahu
- Jan 9th, 2006
Ans:protected internal is available to derived classes and classes within the same Assembly (and naturally from the base class it is declared in). function checkf(form) { var f = document.form1;if (document.form1.cmt.value=='') { alert('Please enter the comment'); return false; }}
C# Interview Questions
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