How to use a type in FOREACH

1 // enable the class to use 2 public class students 3 {4 int I =-1; 5 6 student [] stus; 7 public students () in the FOREACH Loop () {8 stus = new student [2] {new student ("xx"), new student ("wsenmin") }; 9} 10 public IEnumerator GetEnumerator () 11 {12 return (IEnumerator) this; 13} 14 public object Current15 {16 get {17 return stus [I]; 18} 19 20} 21 public bool MoveNext () 22 {23 I ++; 24 return (I <stus. length); 25} 26 public void Reset () {27 I =-1; 28} 29}

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GetEnumerator converts a class to IEnumerator

Current returns the Current value

MoveNext sets the current index

Reset Index

            students stus = new students();            foreach (student item in stus)            {                Console.WriteLine(item.Name);            }            stus.Reset();            foreach (student item in stus)            {                Console.WriteLine(item.Name);            }             

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