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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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Shallow and Deep Copy
What is shallow and deep copy in C#? How to perform the same in C#?
ebabu
- Jan 9th, 2010
Shallow copy make a copy of data along with it's reference, for example object A has property name, by making a shallow copy to object B, and changes the name property value that will reflect in o...
gopi2008
- Apr 20th, 2008
shallow copy copies the structure of the object, deep copy copies structure as well as data.For example, consider an object called X that references objects A and B. Object B, in turn, references obje...
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Garbage Collector Generations Algorithm
Explain the Generations Algorithm used in the context of Garbage Collector
Loki117
- Dec 28th, 2008
Garbage collection in .Net is an automated process. All objects are swept by the GC to check if they are still alive and are assigned a generation each sweep. The lower the generation the more frequen...
sutanu_halder
- Apr 18th, 2008
* The (original) copying collector (Enabled by default). When this collector kicks in, all application threads are stopped, and the copying collection proceeds using one thread (which means only o...
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Design Patterns
What kind of design patterns can be used for C# development projects?
learner22
- Jun 24th, 2008
A design pattern can solve many problems by providing a framework for building an application. Existing design patterns make good templates for your objects, allowing you to build software faster. The...
PurnimaMahajan
- May 28th, 2008
A design pattern is not code, per se, but a "plan of attack" for solving a common software development problem. The GOF had distilled the design patterns in their book into three main subject areas: Creational, Structural, and Behavioral.
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Classes Interface
Explain how many classes can an interface inherit?
Namedm
- May 22nd, 2008
Interface cannot inherit classes.Interfaces are used to define the methods and properties and the implementation is provided in the class that inherites interface
samalprakash83
- Apr 18th, 2008
an interface can not be inherited from a class......for further info contact +91-9986644137
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C# pointers
Can we use pointer in c# ?if we can then how it can implement ?and if no then why we can not use pointer in c#?
hmehta
- Jul 8th, 2008
We can use pointers in C# within the scope of unsafe code e.g.:unsafe{//all pointer related code here}but doing so, makes ur code un managed.Also, if you want to have pointers to class level variables, you must use fixed keyword.
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How to Do File Exception Handaling in C#
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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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Debug C# Web Application
How to debug C# Web Application?
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Operator Overloading
Why should we have to overload ==(equals) and !=(not equals) operators in same program? If any one is not overloaded it gives error. Same with =?
kabilan
- Jan 3rd, 2012
Same class name and different parameters within one class
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Define reflection
What is reflection and assembly?
Vasyliy Zvarydchuk
- Sep 6th, 2015
Reflection is an API that allows programmatically getting access to .Net assembly and module metadata. An assembly is a group of .Net modules, resources and manifest. As a rule assembly is located in one file and has one .Net module.
Poornima
- Sep 12th, 2012
Fetching the assembly information at runtime
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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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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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Does C# support templates?
No. However, there are plans for C# to support a type of template known as a generic. These generic types have similar syntax but are instantiated at run time as opposed to compile time. You can read more about them here.
pambatman
- Apr 15th, 2007
Generics are a new feature in version 2.0 of the C# language and the common language runtime (CLR). Generics introduce to the .NET Framework the concept of type parameters, which make it possible to d...
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How do you implement thread synchronization (Object.Wait, Notify,and CriticalSection) in C#?
You want the lock statement, which is the same as Monitor Enter/Exit: lock(obj) {// code}translates to: try {CriticalSection.Enter(obj);// code} finally {CriticalSection.Exit(obj);}
jaganmohan2
- Apr 18th, 2007
A thread is simply a separate stream of execution that takes place simultaneously with and independently of everything else that might be happening. A thread can synchronize itself with another thread...
sahu
- Jan 10th, 2006
ans:yes,it is right.lock statement, which is the same as Monitor Enter/Exit: lock(obj) {// code}translates to: try {CriticalSection.Enter(obj);// code} finally {CriticalSection.Exit(obj);}
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How do I create a multilanguage, single-file assembly?
This is currently not supported by Visual Studio .NET.
ramesh
- Jun 18th, 2007
It is not possible
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How do I convert a string to an int in C#?
Here's an example: using System;class StringToInt{public static void Main(){String s = "105";int x = Convert.ToInt32(s);Console.WriteLine(x);}}
Viktor Toman
- Apr 13th, 2011
One more way:String str = "123";Int32 num;Boolean converted = Int32.TryParse(str, out num);
sahu
- Jan 6th, 2006
Ans:by using onvert.ToInt32(string)ExampleString s = "45";int x = Convert.ToInt32(s);
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How does one compare strings in C#?
In the past, you had to call .ToString() on the strings when using the == or != operators to compare the strings' values. That will still work, but the C# compiler now automatically compares the values instead of the references when the == or != operators are used on string types. If you actually do want to compare references, it can be done as follows: if ((object) str1 == (object) str2) { ... }Here's...
Rana
- May 24th, 2007
You can use a.Equals(b) to compare and return a bool value where both a and b are strings.
sahu
- Jan 8th, 2006
Ans:The .NET Framework provides several methods to compare the values of strings.i am giving few methods nameLists of methodString.Compare:Compares the values of two strings. Returns an integer value....
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What is the difference between a struct and a class in C#?
From language spec:The list of similarities between classes and structs is as follows. Longstructs can implement interfaces and can have the same kinds of members as classes. Structs differ from classes in several important ways; however, structs are value types rather than reference types, and inheritance is not supported for structs. Struct values are stored on the stack or in-line. Careful programmers...
samiksc
- Dec 7th, 2005
Following are the main points of difference between classes and structs in C#:Value type vs Reference type: Structs are value type and classes are reference type. Whenever a struct object is assigned ...
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How is method overriding different from overloading?
When overriding, you change the method behavior for a derived class. Overloading simply involves having a method with the same name within the class.
learnasp
- Oct 11th, 2007
Overriding a method involves changing the business logic og the method, however the return type and parameters remain same. However in overloading a method you can have multiple methods with same name but different signatures.
sahu
- Jan 9th, 2006
Ans:Answer: When overriding, you change the method behavior for a derived class. Overloading simply involves having a method with the same name within the class. 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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