I need to execute the functions which are in listed in Array

Question

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C#

public static void PrintRecord(ref Student std)
        {
string[] tname = { "Name : ", "Gender : ", "Age : ", "Marks : ", "Standard : ", "Divison : " };
            string [] fname={"std.GetName()", "std.GetGender()", "std.GetAge()", "std.GetMarks()", "std.GetStandard()", "std.GetDivision"};
            string funName;
            for (int index = 0; index < tname.Length; ++index)
            {
                funName=fname[index];
                Console.WriteLine(tname[index] + ":" + std.GetName());
            }
        }

Output :
Name : std.GetName();
Gender : std.GetGender(); ...

In above output ... these functions are directly printing .. I dont want this , i need to executed these function instead of this output.
Please show me way.....
Thanking you.

Posted 31-Oct-12 0:52am

Rohit More

Updated 31-Oct-12 1:21am

ridoy

v3

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Sergey Alexandrovich Kryukov 9-Apr-13 11:38am

Nothing like "function" is listed in an array.
—SA

2 solutions

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Sergey Alexandrovich Kryukov · Accepted Answer · 2013-04-09T05:46:00

The "functions" cannot really be listed in an array. You list the names of the functions, but this is really, really bad approach (and Solution 1 is a really bad answer). It is not maintainable. Think by yourself: should you misspell the name, a compiler would not be able to detect the problem. Should you rename the function, you will immediately break the functionality, and the compiler errors/warning which could help you to restore the consistency, would never appear. Such approaches are the real disaster.

At the same time, there is an apparent and really neat solution. You should store delegate instances is your array or some collection. I've developed a whole robust technique, which is generic and highly universal. Please see my CodeProject article:
Dynamic Method Dispatcher[^].

—SA

SoumenBanerjee · Accepted Answer · 2012-10-31T02:03:00

Please try to change
string [] fname={"std.GetName()", "std.GetGender()", "std.GetAge()", "std.GetMarks()", "std.GetStandard()", "std.GetDivision"};

as
string [] fname={std.GetName(), std.GetGender(), std.GetAge(), std.GetMarks(), std.GetStandard(), std.GetDivision};

and if your method not returning string value then please cast it into string

I have tried with your code

C#

public  void PrintRecord(ref Student std)
        {
            string[] tname = { "Name : ", "Gender : ","Age : "};
            string[] fname = { std.GetName(), std.GetGender(), std.GetAge().ToString() };
            string funName;
            for (int index = 0; index < tname.Length; ++index)
            {
                funName = fname[index];
                Response.Write(tname[index] + ":" + funName);
            }
            }

demo student class

C#

public class Student
    {
        public string GetName()
        {
            return "soumen";
        }

        internal string GetGender()
        {
            return "M";
        }

        internal int GetAge()
        {
            return 32;
        }
    }

The output is
Name : :soumen Gender : :M Age : :32

Is that the output you want to display or please explain

I need to execute the functions which are in listed in Array

2 solutions

Solution 2

Solution 1

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