Error: Invalid token '=' in class, struct, or interface memb

Question

Why above error is coming after the compilation of this code. Thanks in advance.

-----------------------------------------------------------------------------------------------------

using System;
class ReadonlyDemo
{
readonly bool flag;
flag=true;
static void Main()
{
}
}

Answer 1

Hello

 

You should do like this :

 

class Program
    {
        readonly bool flag ;
        Program()
        {
            flag = true;
        }

        static void Main(string[] args)
        {
            Program p = new Program();
            Console.WriteLine(p.flag);
            Console.ReadKey();
        }
    }

Explaination :

 

There is two possibility to define value to readonly property :

 

1 . You can directly define when declaration like :

 

readonly bool flag =false ;

2 . Define value with constructor  :

 

Program()
        {
            flag = true;
        }

I hope it helps 

 

Thanks

 

Answer 2

Hello 

 

Always welcomed any doubts in future !!!

 

Thanks 

Answer 3

Thank you Manav Pandya !   You have cleared my doubt.