Using GetHashCode for getting Enum int value

Question

I have an enum

public enum INFLOW_SEARCH_ON
{
  ON_ENTITY_HANDLE = 0,         
  ON_LABEL = 1,                 
  ON_NODE_HANDLE = 2            
} // enum I         


        

Answer 1

I see some comments that describe the disadvantages of using GetHashCode() for many reasons.

There are some cases where (int)INFLOW_SEARCH_ON.ON_LABEL doesn't work.

A good way to get the int value from Enum is using GeTTypeCode() method. This method works regardlesss of the underlying type. In this case it is int.

public enum INFLOW_SEARCH_ON
{
 ON_ENTITY_HANDLE = 0,         
 ON_LABEL = 1,                 
 ON_NODE_HANDLE = 2            
} // enum INFLOW_SEARCH_ON

INFLOW_SEARCH_ON selectedType = INFLOW_SEARCH_ON.ON_LABEL;

object val = Convert.ChangeType(selectedType, selectedType.GetTypeCode());
Console.WriteLine(val);

Output in this case is '1'.

Reference: Get int value from enum