templates - C# Using Equals method in a generic list fails -

i have project have class state uses templates. have class cell, , use state, state holds cell genericstate. have generic function checks if 2 instances equal. problem is, never leaves state equals method cell equals method.

public class state<t> {     public t genericstate;  //in case t cell     public state(t cellstate) // ctor     {         this.genericstate = cellstate;       }      public override bool equals(object obj)     {                     return genericstate.equals((obj state<t>).genericstate);      } //never leaves } 

and code of class cell, in never gets:

public class cell {     public int row, col;     public bool visited;     public char value;     public bool equals(cell other)   //never gets here     {                    return other != null && other.row == row && other.col == col;         }  } 

i don't understand why never gets equal method of cell. wrong code?

the problem code not know t has special method

bool equals<t>(t other) 

it thinks should calling cell's override of equals(object), code not override.

fixing simple: add iequatable<cell> list of interfaces implemented cell, , add constraint on t ensure implements iequatable<t>:

public class state<t> t : iequatable<t> {     ... // rest of code remains same } ... public class cell : iequatable<cell> {     ... // rest of code remains same }