Change string using ref keyword : Ref : Language Basics C# Examples

Change string using ref keyword

    
using  System;

class  MainClass
{
    public  static  void  UpperCaseThisString(ref  string  s)
    {
        s  =  s.ToUpper();
    }
    public  static  void  Main()  
    {
        string  s  =  "str";
        Console.WriteLine("->  Before:  {0}",  s);
        UpperCaseThisString(ref  s);
        Console.WriteLine("->  After:  {0}\n",  s);
    }
}
    
   
  
   

-> Before: str
-> After: STR

Related in same category :
• Use ref to pass a value type by reference
• Swap two values
• Swap two references.
• Use out for reference type
• Use ref for int value
• Use ref for reference type
• Passing Parameters by Value