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    Postcode finder using data supplied by royal mail
Updated Daily

  “PostZon” Geographic Data - SOAP API


To get a "Postzon" Geographical Data address from our SOAP Web Service we do the following:

The following example calls our server to retrieve the PostZon address data for a given postcode, OSRef, Longitude/Latitude or Town.  It also returns the Distance in Km between two postcodes if HomePostcode is set.

Step 1 Add SOAP reference to your project

The following web references give access to our SOAP web service

.NET Web Reference

http://www.SimplyLookupadmin.co.uk/WebService.asmx

WSDL Web Reference

http://www.SimplyLookupadmin.co.uk/WebService.asmx?WSDL

You should add this SOAP reference to your project.

Step 2 Call SOAP Web Service to get PostZon Data

The following code will call the SOAP Web Service to return "Postzon" Geographical Data for a given postcode.

  VB.Net
Dim HomePostcode as string ="PE132QL"
Dim PostcodeToGet as string = "PE132XQ"
Dim PostcodeSearch As New PostcodeWebService.WebService
Dim Address As PL_AddressRecord

'Ask for Address by ID
Address = PostcodeSearch.SearchForPostZonData(“My DataKey”, “TestComputer", "UK", PostcodeToGet,
                         HomePostcode)


If Address.AddressRecordGotWithoutError Then
   'Display results
   If Address.ErrorMessage <> "" Then MsgBox(Address.ErrorMessage)

      'Process the Address to text field
      Dim AddressText As String
      With Address
         AddressText + = "Longitude:" & .longitude_WGS84 & vbCrLf
         AddressText + = "Latitude:" & .latitude_WGS84 & vbCrLf
         AddressText + = "Distance Km:" & .GeoDistanceToHomePostcode & vbCrLf
      End With
      Me.TxtAddress.Text = AddressText
   Else
      'Display error (Account stuff mostly, i.e. No License)
      MsgBox(Address.ErrorMessage)
End If

  C# .NET
uk.co.simplylookupadmin.www.WebService PostcodeSearch = new uk.co.simplylookupadmin.www.WebService();
uk.co.simplylookupadmin.www.PL_AddressRecord AddressesDataReturned = new
                                       uk.co.simplylookupadmin.www.PL_AddressRecord();


string datakey = Request.QueryString["datakey"].ToString();
string postcode = Request.QueryString["postcode"].ToString();
string userid = Request.QueryString["userid"].ToString();
string homepostcode = Request.QueryString["homepostcode"].ToString();


//Please note: Section 3.5 of the terms and conditions state: "The Customer, when using the Postcode Lookup service via Web Service, must make sure each user is identified by a unique computer name, in each call to the Web Service." In simple language this means that each user must be identified by a unique username.

//If the postcode address search is for External use then SET ComputerName = ""

//Do Search, on Postcode or two or more address fields
AddressesDataReturned = PostcodeSearch.SearchForPostZonData(datakey, userid, "UK", postcode,
                               homepostcode);


if (AddressesDataReturned.AddressRecordGotWithoutError == true)
{
   //Display results, no major error
   this.TxtResults.Text = AddressesDataReturned.ErrorMessage;

   string AddressText;
   AddressText = "Status:" + AddressesDataReturned.CreditsStatusText + "\n" + "\n";

   AddressText += "MailSort:" + AddressesDataReturned.MailSort + "\n";
   AddressText += "longitude_WGS84:" + AddressesDataReturned.longitude_WGS84 + "\n";
   AddressText += "latitude_WGS84:" + AddressesDataReturned.latitude_WGS84 + "\n";
   AddressText += "UK_os_reference:" + AddressesDataReturned.UK_os_reference + "\n";
   AddressText += "UK_OS_grid_east:" + AddressesDataReturned.UK_OS_grid_east + "\n";
   AddressText += "UK_OS_grid_north:" + AddressesDataReturned.UK_OS_grid_north + "\n";
   AddressText += "UK_NHS_code:" + AddressesDataReturned.UK_NHS_code + "\n";
   AddressText += "UK_NHS_region:" + AddressesDataReturned.UK_NHS_region + "\n";
   AddressText += "UK_country:" + AddressesDataReturned.UK_country + "\n";
   AddressText += "UK_IntroductionDate:" + AddressesDataReturned.UK_IntroductionDate + "\n";
   AddressText += "UK_county:" + AddressesDataReturned.UK_county + "\n";
   AddressText += "UK_district:" + AddressesDataReturned.UK_district + "\n";
   AddressText += "UK_ward:" + AddressesDataReturned.UK_ward + "\n";
   AddressText += "UK_wardstatus:" + AddressesDataReturned.UK_wardstatus + "\n";
   AddressText += "UK_county:" + AddressesDataReturned.UK_county + "\n";
   AddressText += "UK_gridstatus:" + AddressesDataReturned.UK_gridstatus + "\n";

   // long Distance = 0;

   // to do AddressesDataReturned.GeoDistanceToHomePostcode is a string and needs type casting?

   //If (length(AddressesDataReturned.GeoDistanceToHomePostcode)>0) Then
   // Distance = (long)(AddressesDataReturned.GeoDistanceToHomePostcode);
   // AddressText += "Distance:" + Distance + " km " + (long)(Distance / 1.609344) + " miles" + "\n";

   this.TxtResults.Text = AddressText;
}
else
{
   //Display error (Account stuff mostly)
   this.TxtResults.Text = AddressesDataReturned.ErrorMessage;
}

Where PostcodeSearch is a web reference to: http://www.SimplyLookupadmin.co.uk/WebService.asmx

Data Returned

See data returned by PostZon data

more information about getting distance/Longitude/Latitude using SOAP web service.