what possible in static class and not in non-static class C#

Question

what possible in a static class and not in non-static class or vice versa in C#, for example static class MyProgram.CallFunction(); non-static class MyProgram obj =new MyProgram(); obj.CallFunction(); in the above example without creating the instance we can able to call static class members so this is basic. I'm looking for a difference which is possible and not possible in static and non-static

Asad Ali · Answer

Along with the difference its also the usage of the class as well which also defines the difference. If you are using IOC than its better to not to use static classes and let dependency injection hangle it (but that absolutely depends on your situation) also If you are using TDD then it's easy to create fakes for classes that are non-static

Ashutosh Gupta · Answer

aarif, 1. first main differnece was mention by you.where public static method are called direclty by class refernce, no need of creating object of class. 2. staid methods can call only static method, bit non static can have both. 3. you can mark private method static if there is no reference of global members. 4. class can be marked as static if that is going to used like helper/utilities, such common static methods are used when it called from multiple places. 5. do not use static method when you are using multi client case where two user calling same static method. it static values are changed it will be aapplied for all. 6. cases like when you want to use log, you can create singleton instance type of static.

Puneet Kankar · Answer

Hi Aarif, A static class is basically the same as a non-static class, but there is one difference a static class cannot be instantiated. In other words, you cannot use the new operator to create a variable of the class type. Because there is no instance variable, you access the members of a static class by using the class name itself. For example, if you have a static class that is named Utility Class that has a public static method named. check below links for details manner. https://stackoverflow.com/questions/5241899/what-is-the-difference-between-static-methods-in-a-non-static-class-and-static-m https://www.c-sharpcorner.com/uploadfile/abhikumarvatsa/static-and-non-static-methods-in-C-Sharp/ https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/static-classes-and-static-class-members https://www.tutorialspoint.com/Static-vs-Non-Static-method-in-Chash https://www.geeksforgeeks.org/static-keyword-in-c-sharp/

Dinesh Gabhane · Answer

breif details are given in below article https://hackernoon.com/c-static-vs-instance-classes-and-methods-50fe8987b231