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A delegate in C# is similar to:
Skill/Topic: AdvancedA) COMB) a function pointerC) a pointer
Amit
- Oct 13th, 2006
Its Function Pointer Definetly
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What is a multicast delegate?
Skill/Topic: IntermediateA) a delegate having multiple handlers assigned to itB) a delegate called multiple timesC) a delegate which has multiple implementations
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The correct syntax for defining a delefate is:
Skill/Topic: AdvancedA) delegate {MyMethod( int y) }B) delegate void MyMethod(int y) ;C) delegate: MyMethod (int y)
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To write a line of text to the xonsole window, we make the following call
Skill/Topic: BeginnerA) Console.WriteLine()B) console.writeline()C) System.Output()
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Can u create the instance for abstract classes
yunuskhan
- Mar 4th, 2009
We can create an instance of an abstract class.The below code is not working:sayHello is an abstract classObject o=System.Activator.CreateInstance(typeof(sayhello));
Gaurav
- Sep 26th, 2006
This is not working. Following is the code:using System;using System.Collections.Generic;using System.Text;namespace ConsoleApplication2{public abstract class sayhello{public void hello(){Console.Writ...
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What is true about readonly variable in C# code?
Skill/Topic: BeginnerA) It's the same as a constantB) It's value can be assigned only onceC) You can never assign a value to it
JimmyJamJo
- May 17th, 2008
I'd argue "B" isn't quite right - you CAN assign to a readonly variable more than once, it's just that you can't assign to it after the constructor has been executed. Conside...
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Namespaces
When do you apply Namespace Alias Qualifiers and Extern Namespaces Alias?
PrasannaJugade
- Apr 10th, 2009
It is supposed to be used when a member in program might be hidden by another entity of the same name.
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IF a namespace isn't supplied, which namespace does a class belong to
Skill/Topic: IntermediateA) a nameless global namespaceB) SystemC) Windows
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.NET FRAMEWORK
.NET FRAMEWORK1. What is .NET Framework?The .NET Framework has two main components: the common language runtime and the .NET Framework class library.You can think of the runtime as an agent that manages code at execution time, providing core services such as memory management, thread management, and remoting, while also enforcing strict type safety and other forms of code accuracy that ensure security...
PrasannaJugade
- Apr 10th, 2009
The .NET framework is a platform over which multiple languages are running.The 2 main components are 1. FRAMEWORK CLASS LIBRARY2. COMMON LANGUAGE RUNTIMEIt's features like CTS provide Cross Langua...
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Structs and classes support inheritance
Skill/Topic: IntermediateA) TrueB) FalseExplanation: Only classes can inherit. Structs can’t.
deepak.dagar
- Apr 29th, 2009
Actually Interfaces are 'Implemented' & never 'Inherited'.So this sounds technically correct that Structs does not support Inheritance.
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How we can set the background color of a particular sheet in VSTO
Abhi_13
- Apr 30th, 2009
You need to use the color class to change the background colour -ex :: this.BackGroundColor=Color.Red();
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Namespaces are used to
Skill/Topic: IntermediateA) Separate assembliesB) Create a unique name for an assemblyC) Avoid name clashes between data types
khader
- Oct 13th, 2006
All the above are correct.
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Delegate
The following code illustrates a situation where a boss wants to keep track of the work progress of its subordinates: using System;namespace BigCompany { public class Boss { public void WorkerPercentageDone(int percentage) { Console.WriteLine("I am the boss, and my worker is " + percentage + "% done."); } } public class Worker { Boss boss = null; public Worker(Boss boss) ...
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An assembly can be stored across multiple files?
Skill/Topic: IntermediateA) YesB) No
vijee
- Jun 21st, 2009
Yes.Assembly is a collection of functionality that is built, versioned, and deployed as a single implementation unit (as one or more files).
leejo
- Dec 8th, 2005
Yes. The manifest inside the assembly will hold the details of all the files. ie it will store the name of the resource file etc.
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The field variables in a class or a struct in C# are by default given a value of zero
Skill/Topic: BeginnerA) TrueB) False
mwelo
- Jun 19th, 2009
The right answer is true not false! The rules are slightly different between classes and structs...
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XML documents for a C# program can be generated using
Skill/Topic: IntermediateA) /xmldoc switchB) /doc switchC) /gendoc switch
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Which of the following are predefined reference types in C#?
Skill/Topic: BeginnerA) intB) objectC) string
sdevlin555
- Jul 27th, 2009
The pre-defined reference types are object and string, where object is the ultimate base class of all other types.
samiksc
- Dec 7th, 2005
(B) and (C): 'object' and 'string' are predefined reference types. 'string' is a sealed class type which inherits directly from object.
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Delegates and Generics in c#
What is the advantage of using delegates and Generics in c# .
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Editorial / Best Answer
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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How do I make a DLL in C#?
You need to use the /target:library compiler option.
masterubaid
- Aug 7th, 2009
There is no Issue to make dll in C#...Go to Project and Select "Class Library" and work as you work in Usual FORM by making Classes or functions ....The only difference is that when we are m...
swag
- Dec 26th, 2005
Open the property page of the Project File and thenopen CommonProperties -> Genaral ->Output Typechange the output type to class library and build the application then u'll get a dll file.also i...
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'this' in C#
Explain about 'this' and where and when it should be used?
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Editorial / Best Answer
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.
C# Interview Questions
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