Value type V/s Reference Type in C #

[Solaris]

Hello my friends , have got some doubt in the object oriented programming language programming language concept , I d not mind if you explain in the context of any language , but most probably I will recommend if you can explain in the context of C# language , since I am using the .NET framework based programming language and the Microsoft Visual Studio for learning the programming language . Please help me if you have any kind of idea regarding the value type and reference type being used in the C# language . I am a bit confused in it as it seems everything same. I will be very grateful to you . Thank you in advance.

[Vandam]

Well you can find out the following difference in the value type and the reference type :

• Value types inherit from System.ValueType.
• While Reference types inherit from System.Object. class
  
• Value types is not able to derive a new type from an on hand value type, but they are capable of implementing an interfaces.
• Reference types can inherit a new type from an existing reference type along with capable of implementing interfaces.
  
• Modifying the value of one value type does not influence the value of one more value type.
• Modifying the value of one reference type MAY modify the value of an additional reference type.
• The nullable type (only in .NET 2.0) can be allocateed the value null.

[Steyn]

I will say that using a value type reference has an edge over the reference type variables , the memory allocated to the value type variables are much more quickly allocated to the value type variable as they are stored in a stack so it and the reference are stored in the heap so they much more tile in getting assigned than that of value types , they same things happens when you are actually de- allocating freeing the memory , for example take the example of structs they are allocated as soon as they are created and then destroyed as soon as there scope is deleted .

[Jacques25]

• A identifier that is of type value directly holds a value. Allotting a variable of type value to one more variable of type value that creates a copy of that value.
• A identifier of type reference, indicates to a place in memory where the definite object is enclosed. Allotting a variable of type reference to one more variable of type reference creates a copy that reference (it informs the new object where the position in memory is), but does not create a copy of the object.

[Villiers]

One region probably to cause puzzlement for those coming from a Java or VB6 background is the difference between value types and reference types in C#. In particular, C# renders two types—class and struct, which are approximately the similar except that one is a reference type while the further is a value type. When we say that the value type mean it is stored in the stack and a variable storing the reference type is stored in the heap.