Demonstrate using Type class to discover information about a class : Reflection Assembly : Development Class C# Source Code

    

/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/

// GetType.cs -- Demonstrate using Type class to discover
//               information about a class
//
//               Compile this program with the following command line:
//                   C:>csc GetType.cs
using System;
using System.Reflection;

namespace nsReflection
{
    class clsEmployee
    {
        public clsEmployee (string First, string Last, string Zip, int ID)
        {
            FirstName = First;
            LastName = Last;
            EmployeeID = ID;
            ZipCode = Zip;
        }
        public string  FirstName;
        public string  LastName;
        public string  ZipCode;
        public int      EmployeeID;

        public string Name
        {
            get {return (FirstName + " " + LastName);}
        }
        public string Zip
        {
            get {return (ZipCode);}
        }
        public int ID
        {
            get {return (EmployeeID);}
        }
        static public int CompareByName (object o1, object o2)
        {
            clsEmployee emp1 = (clsEmployee) o1;
            clsEmployee emp2 = (clsEmployee) o2;
            return (String.Compare (emp1.LastName, emp2.LastName));
        }
        static public int CompareByZip (object o1, object o2)
        {
            clsEmployee emp1 = (clsEmployee) o1;
            clsEmployee emp2 = (clsEmployee) o2;
            return (String.Compare (emp1.ZipCode, emp2.ZipCode));
        }
        static public int CompareByID (object o1, object o2)
        {
            clsEmployee emp1 = (clsEmployee) o1;
            clsEmployee emp2 = (clsEmployee) o2;
            return (emp1.EmployeeID - emp2.EmployeeID);
        }
    }

    public class GetType
    {
        static public void Main ()
        {
            Type t = typeof(clsEmployee);
            if (t == null)
            {
                Console.WriteLine ("t is null");
                return;
            }
            Console.WriteLine ("Class clsEmployee is a member of the {0} namespace", t.Namespace);
            Console.WriteLine ("\r\nMethods in clsEmployee:");
            MethodInfo [] methods = t.GetMethods ();
            foreach (MethodInfo m in methods)
                Console.WriteLine ("\t" + m.Name);
            Console.WriteLine ("\r\nProperties in clsEmployee:");
            PropertyInfo [] props = t.GetProperties ();
            foreach (PropertyInfo p in props)
                Console.WriteLine ("\t" + p.Name);
            Console.WriteLine ("\r\nFields in clsEmployee:");
            FieldInfo [] fields = t.GetFields ();
            foreach (FieldInfo f in fields)
                Console.WriteLine ("\t" + f.Name);
        }
    }
}