Question

I have a UI view lossreport.xaml in that below code is there

    LossReportTowGlassServiceClient wcf = new LossReportTowGlassServiceClient();
            wcf.HouseholdSearchCompleted += (o, ev) =>
            {
                string a = errorMessg.ToUpper();
        //Code to work with ev
            };
            wcf.HouseholdSearchAsync(lossDate, txtPolicyNumber.Text, errorMessg);

in service.svc page

             try
                {
                    policyinq.retrieveHouseHoldPoliciesCompleted += new   retrieveHouseHoldPoliciesCompletedEventHandler(policyinq_retrieveHouseHoldPoliciesCompleted);

                    policyinq.retrieveHouseHoldPoliciesAsync(reqh, searchCriteria, lossdate, true, string.Empty, string.Empty);
                    break;
                }
                catch (Exception ex)
                {
                    Logger.Exceptions("", "HouseholdSearch", ex);
                    errorToSend = "Household error";
                }

     void policyinq_retrieveHouseHoldPoliciesCompleted(object sender,   retrieveHouseHoldPoliciesCompletedEventArgs e)
    {
        {
            if (e.transactionNotification != null && e.transactionNotification.transactionStatus == TransactionState.S)
            {

            }
            else
            {
                ErrorHandling.ErrorSend(e.transactionNotification, "HouseHold");
            }

        };
    }

now before retrieveHouseHoldPolicies is completed HouseholdSearchCompleted event is fired.How to make it wait

Answer 1

using System.Threading;
ManualResetEvent _wait = new ManualResetEvent(false);
_wait.Set();//In completed event
_wait.WaitOne();//After the event is completed WaitOne will wait untill the _wait is set with value