c# - Reference To Variable, Not To Object -


i'd if make reference point specific variable rather object (or memory location more accurately) variable representing.

as example let's have following program, want create reference myclass returns whatever value in myclass @ times, if value changes. have code looks like.

class myclass {     public int value = 0; }  class program {     static myclass saved; //maintained , used following 2 functions     static void storereference(myclass input)     {         saved = input;     }      static void setvalue()     {         saved.value = 42;     }      static void main(string[] args)     {         //a couple arbitrary classes i'd have references         myclass = new myclass();         myclass b = new myclass();          storereference(a);         = b;         setvalue();         console.write(a.value); //should print 42, instead prints 0 since reads in original object set     } }

is there can in c#, or can prevent variable being assigned new memory location (so above code return error @ = b)?

you can check whether saved has value or not:

static void storereference(myclass input) {     if (saved != null) {         return;     }     saved = input; }

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