How to pass an argument by reference in Csharp/C#/VB.NET

Pass by Reference/Pass by Value in VB.NET/C-Sharp/C#

Here is an example of passing an argument to a function by Value:

private static void PassByValueExample(double Salary)//
        {
            Salary = Salary * 1.2;
        }

Here is how it is passed as reference

private static void PassByRefExample(ref double Salary)//
        {
            Salary = Salary * 1.2;
        }

The following code shows the difference between the two

Console.WriteLine("Salary before hike is {0:F}", Sal);
            PassByValueExample( Sal);
            Console.WriteLine("Salary after hike is {0:F}", Sal);

            Console.WriteLine("Salary before hike is {0:F}", Sal);
            PassByRefExample(ref Sal);
            Console.WriteLine("Salary after hike is {0:F}", Sal);

See also:

Output Parameters in C# (.NET)

How to get the return value from C# program (console application)

Object Arrays in C# using Indexers

 

 

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