WSDL Web Service returns empty array from C#

Question

I am using a web service with this address: https://api.n11.com/ws/CityService.wsdl

The service has a method 'GetCities'. You can test it with http://wsdlbrowser.com/

The problem is when I get Cities from C#, it returns an array of 81 elements but 'cityId' and 'cityName' gets null.

Please help!

My code is shown below:

        GetCitiesRequest request = new GetCitiesRequest();
        CityServicePortClient port = new CityServicePortClient();

        GetCitiesResponse getCitiesResponse = port.GetCities(request);

        var list = getCitiesResponse.cities;

I experienced the same issue. There was an empty property in our response that was not shown in the wsdl we received which caused an incorrect ordering. — Herschel Jansen
– Herschel Jansen, Commented Oct 28, 2020 at 14:15

Anderson Pimentel · Accepted Answer · 2015-12-24 16:26:59Z

6

Got it!!!

Visual Studio is messing up the Order parameter on XmlElementAttribute, so, in your References.cs file change the following:

[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified, Order=0)]
public long cityId

to

[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified, Order=1)]
public long cityId

and

[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified, Order=1)]
public string cityCode

to

[System.Xml.Serialization.XmlElementAttribute(Form=System.Xml.Schema.XmlSchemaForm.Unqualified, Order=0)]
public string cityCode

answered Dec 24, 2015 at 16:26

Anderson Pimentel

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2 Comments

Kemal Duran Over a year ago

Thank you, it works. But what is the Order parameter?

Anderson Pimentel Over a year ago

It's the order of the field in the XML response. It's needed for deserialization. The way it was, it's expected to return <cityId>1</cityId><cityCode>123</cityCode>, but, in fact, it was returning <cityCode>123</cityCode><cityId>1</cityId>, hence you had to switch the orders between the two fields.

Daniel · Accepted Answer · 2015-12-24 09:29:49Z

1

I am experiencing the same behavior.

My assumption is, that the service: https://api.n11.com/ws/CityService.wsdl is not returning a value.

answered Dec 24, 2015 at 9:29

Daniel

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