What's the Key Difference Between Value Types and Reference Types in C#?

The key difference between the value type and the type of reference type in the c#

When processing data in C#, the difference between the understanding of the value type and the reference type is very important. This article explores their definitions and characteristics.

Value type (based on value)

Value type directly stores its data in the variables referenced. They include basic types, such as integer, floating point number and Boolean value. When you give the value to the value type, the copy of the value will be created.

Example:

• In this example, int i = 5; int j = i; and
include 5. Any changes to one variable will not affect another variable.

Quote type (based on reference) i j

On the other hand, the address of the type of memory in the reference type memory instead of saving its data directly. They include class, array, commission and interface. When you give the type to the variable, you are creating a reference to the object.

Example:

• In this example, and both quote the same object in memory. The change through a reference will affect the object, and any update will be reflected in two references. class MyClass { public int value; }; MyClass obj = new MyClass() { value = 5 }; MyClass obj2 = obj;
Main differences:

obj obj2 The value type directly stores the data in the variable, and the address of the reference type storage data.

Value type Create a copy of the value, and the reference type creates a reference to the same object in memory. Change the values ​​of the value in a variable will not affect other variables referenced, and change the value of the reference type with a variable can affect all reference variables.

• Conclusion:
The difference between understanding the value type and the reference type is essential to manage data in C#. The value type is simple and efficient for a small amount of data, and the reference type allows the creation of more complicated data structures and relationships through object reference.

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