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How to pass object as argument to method in C#?

Learn, how to pass object as argument into method in C#?
[Last updated : March 21, 2023]

Passing an object as argument to method

As we know that we can pass primitive (basic) data types in methods as arguments. Similarly, we can pass objects in methods too.

Here is an example that will accept objects as arguments in the methods.

C# program for passing an object as argument to method

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1 {
  class Sample {
    //private data member
    private int value;

    //method to set value
    public void setValue(int v) {
      value = v;
    }

    //method to print value
    public void printValue() {
      Console.WriteLine("Value : " + value);
    }
    //method to add both objects, here we are passing
    //S1 and S2 which are objects of Sample class
    public void AddOb(Sample S1, Sample S2) {
      //adding the value of S1 and S2, 
      //assigning sum in value of current object 
      value = S1.value + S2.value;
    }
  }

  class Program {
    static void Main() {
      //objects creation
      Sample S1 = new Sample();
      Sample S2 = new Sample();
      Sample S3 = new Sample();

      //passing integers
      S1.setValue(10);
      S2.setValue(20);

      //passing objects 
      S3.AddOb(S1, S2);
      //printing the objects
      S1.printValue();
      S2.printValue();
      S3.printValue();
    }
  }
}

Output

Value : 10
Value : 20
Value : 30

Explanation

In this example, there is a class Sample, which has value as private data member, here we are providing integer values to data members of S1 and S2 class. Method AddOb() is taking two arguments of Sample (which is class name) and S1 and S2 (which defining the method) are objects.

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