Question

ow to indicate that T is inherited from other class that implements certain methods:

public Class A
 {
    public string GetAccessPoint();
    public string GetPriorityMap();
 }

public Class IndexBuilder<T> where T : A
{
   List<string> Go<T>(T obj)
   {
      string aPt=obj.GetAccessPoint();
      string pMap=obj.GetPriorityMap();
   }
}

In other words, I cannot access GetAccessPoint and GetPriority map of the obj although I indicated that it is inherited from A.

Answer 1

That’s because you redefined what T is when you made the Go method generic. Since T is defined at the class level, there is no need to redefine it in Go. Try this:

public Class IndexBuilder<T> where T : A
{
   List<string> Go(T obj)
   {
      string aPt=obj.GetAccessPoint();
      string pMap=obj.GetPriorityMap();
   }
}