Yield Examples

Yield
 Purpose of yield is to control sequence of loop.This can be used with in iterator (looping),implementing in the body of loop.
yield return inside a method as  IEnumerator object.

Syntax:
AccessModifier static IEnumerator<Datatype> Methodname()
{
/*-----To do something---*/

yield return "whatever you return"; eg: yield return strname;
}


Example:

int iNum=0;
int iResult;
foreach(int i in GetNumber())
{
        iResult=iNum+i;
}


private static IEnemurator<int> GetNumber()
{
   for(int i =0; i<10;i++)
  {
      yield return i;
  }
}

Explanation:
This is sum of series example here ,we call Getnumber method for get a i value. After call a Getnumber method.First i value is zero  return, then i add with iNum,then  continue Getnumber method until i reaches ten.
Note:
Yield return  a value only IEnumerator object.