what is use of static class in c#

Vilas Sagar

7y860Learn iOS Programming

I need to know what is use static class.

5 Replies

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Tamal Marick7y ago
Accepted answer
Use a static class to contain methods that are not associated with a particular object. For example, it is a common requirement to create a set of methods that do not act on instance data and are not associated to a specific object in your code. You could use a static class to hold those methods.

The advantage of using a static class is that the compiler can check to make sure that no instance members are accidentally added. The compiler will guarantee that instances of this class cannot be created. Static classes are sealed and therefore cannot be inherited. They cannot inherit from any class except Object.
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Sonu Gupta7y ago
Hi,

Read this below articles for more clerification-

1. https://softwareengineering.stackexchange.com/questions/103914/why-and-when-should-i-make-a-class-static-what-is-the-purpose-of-static-key

2. http://www.advancesharp.com/blog/1128/static-class-in-c-why-and-when-with-examples
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Rajanikant Hawaldar7y ago
Hi Vilas,

Go through this thread

https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/static-classes-and-static-class-members

https://www.c-sharpcorner.com/forums/in-which-scenario-u-have-to-use-static-class-with-example

http://www.advancesharp.com/blog/1128/static-class-in-c-why-and-when-with-examples

https://stackoverflow.com/questions/7933540/c-sharp-static-class-why-use
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Bhuban Magar7y ago
Hi,
C# allows to creat a static class. we can only use static member,static variable,static functions, static constructor inside static class. we can not create instance of static class.

Uses of Static Class:
1. They can be use easily without creating instance.
2. Using a static class for containing methods that are not associated with objects.
3. Static class loaded automatically by CLR .
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Amit Mohanty7y ago
A class can be declared static, indicating that it contains only static members. It is not possible to create instances of a static class using the new keyword. Static classes are loaded automatically by the .NET Framework common language runtime (CLR) when the program or namespace containing the class is loaded.

Use a static class to contain methods that are not associated with a particular object. For example, it is a common requirement to create a set of methods that do not act on instance data and are not associated to a specific object in your code. You could use a static class to hold those methods.

If a class is declared as static then the variables and methods should compulsorily be declared as static

The main features of a static class are:

1. They only contain static members.
2. They cannot be instantiated.
3. They are sealed.
4. They cannot contain Instance Constructors or simply constructors as we know that they are associated with objects and operates on data when an object is created.

If you want to know When to use static class then read Mahesh Chand article When To Use Static Classes In C#.
Link: https://www.c-sharpcorner.com/article/when-to-use-static-classes-in-c-sharp/
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