Hi guys, im pretty much done with my program but im receivin an error that i cant find where it its.
Im using a WPF application in visual studio and it uses a service reference that contains addresses and zip codes. The purpose of the program is for the user to select numbers in the GUI and search for a city with the Zip code he inputs. First, im just trying to test the function by setting the parameters myself. This is the code.
`Class MainWindow
Public zipClient As ZipCodeReference.AddressLookupSoapClient
Private Sub btnSearch_Click(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles btnSearch.Click
Dim searchResults As zipCodeSearch.ZipCodeReference.Address
searchResults = zipClient.ReturnCityState("33919", "0")
MessageBox.Show(searchResults.AreaCode)
End Sub
End Class
the zipClient.ReturnCityState function mas include zipcode as string and license as string/ License should be 0.
When i test it. It only gets to that line the searchResults = zipClient.ReturnCityState("33919", "0") and stops and give me this error : "NullReferenceException was unhandled.Object reference not set to an instance of an object."
I will really appreciate your help. Thanks