call a Async Method multiple times problem in silverlight

问题

Hi i am calling a Async method with different parameter value multiple times giving same result in completed event.

client.ListAllLookupValuesByTypeCompleted += client_ListAllAddressFormatCompleted;
client.ListAllLookupValuesByTypeAsync("AddressFormat");

client.ListAllLookupValuesByTypeCompleted += client_ListAllPhoneFormatCompleted;
client.ListAllLookupValuesByTypeAsync("PhoneFormat");



void client_ListAllAddressFormatCompleted(object sender, ListAllLookupValuesByTypeCompletedEventArgs e)
        {
            cmbAddressFormat.ItemsSource = e.Result;
        }


void client_ListAllPhoneFormatCompleted(object sender, ListAllLookupValuesByTypeCompletedEventArgs e)
        {
            cmbPhonePrintFormat.ItemsSource = e.Result;
        }

please help me. Thanks.

回答1:

You can create new instance of client.

...
var client = new XyzClient();
client.ListAllLookupValuesByTypeCompleted += client_ListAllAddressFormatCompleted;
client.ListAllLookupValuesByTypeAsync("AddressFormat");

client = new XyzClient();
client.ListAllLookupValuesByTypeCompleted += client_ListAllPhoneFormatCompleted;
client.ListAllLookupValuesByTypeAsync("PhoneFormat");
...


void client_ListAllAddressFormatCompleted(object sender, ListAllLookupValuesByTypeCompletedEventArgs e)
{
    cmbAddressFormat.ItemsSource = e.Result;
}


void client_ListAllPhoneFormatCompleted(object sender, ListAllLookupValuesByTypeCompletedEventArgs e)
{
   cmbPhonePrintFormat.ItemsSource = e.Result;
}

Another solution would be to make the second call in the handler of the first one (probably creating new client instance anyway).

来源：https://stackoverflow.com/questions/5322237/call-a-async-method-multiple-times-problem-in-silverlight

标签

silverlight