memory - How to display ram type in output using c#? -

i trying display size , type of ram in project. using windows 7 32 bit system. success in printing size of ram using

ulong mem = ulong.parse(ci.totalphysicalmemory.tostring()); console.writeline("total physical memory:{0}",mem/(1024*1024) + " mb"); 

but cannot display type of ram using :

public static string getmemorytype(int memorytype)  {       switch (memorytype)           {       case 20:          return "ddr";          break;        case 21:          return "ddr-2";          break;           default:           if (memorytype == 0 || memorytype > 22)             return "ddr-3";                else             return "other";           break;   } } 

please me solve this.

simple snippet

add namespaces manually by

right-click references -->.net---> on right , manually add system.management --->add

using system.management; using system.management.instrumentation; 

and code

 public string ram_type()             {                  int type=0;                 var searcher = new managementobjectsearcher("select * win32_physicalmemory");                 foreach (managementobject obj in searcher.get())                 {                    type = int32.parse(obj.getpropertyvalue("memorytype").tostring());                  }                  switch (type)                 {                     case 20:                         return "ddr";                         break;                     case 21:                         return "ddr-2";                         break;                     case 17:                         return "sdram";                         break;                     default:                         if (type == 0 || type > 22)                             return "ddr-3";                         else                             return "unknown";                 }              }