c# - Whats wrong with this re-throwing exception? -

i'm using wcf service insert data db , service crashes saying exception un-handled. i'm trying pass on exception 1 wcf service method other wcf method , there throwing exception client.

here code:

data inserting method of wcf service: method insert data db

public int insertstatements(sqlcommand cmd) {              try   {     //insert data db    }  catch(sqlexception ex)  {    if (ex.number == 2627) // if unique key constraint error     {      throw new faultexception( "error reason", new faultcode("error code: ");      }     else     {       throw new faultexception("db error: ", new faultcode("error code: " +);     } }  catch (faultexception ex)  {      throw new faultexception("unknown error",new faultcode("unknown error"));  }  } 

wcf insert location method, service exposed method(public)

public int insertlocation (string name) { try  {      // method communicates client     dataconnection.insertstatements(cmd);     }       catch   {      throw; // here i'm getting error   } } 

in client: winform application

 try  {     areadataservicesclient dataobject = new areadataservicesclient("basichttpbinding_iareadataservices");      int rowsaffected = dataobject.insertprovince(provinceobject.areaname, provinceobject.areakm);       return rowsaffected;   }   catch(faultexception ex)   {      messagebox.show("erro occured");   } 

this error get: "an exception of type 'system.servicemodel.faultexception' occurred in emsdataservices.dll not handled in user code"

why service method not pass exception client.

i found it. there nothing wrong code. running services on debug mode , in exception setting 'break @ point if user code unhandled' checked,so stopping service perform further action , client crashing due no response service.

i unchecked , works expected.