PHP Web Service in C# : Invoke() function returns null

I have trouble with consuming another-party web service insInternet C#. It operates on Apache (NuSoap). Everything works normally as much as deserialization (most likely...). After I call the SoapHttpClientProtocol.Invoke() function, I usually have an object array with one null object. Bad is this fact web service does not give a WSDL document. :-(

Can anybody assist me to, please? I believe, the deserialization process does not run.

Here's cleaning soap response:

<?xml version="1.0" encoding="ISO-8859-1"?>
<SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/">
  <SOAP-ENV:Body>
    <ns1:EncodingTestResponse xmlns:ns1="http://schemas.xmlsoap.org/soap/envelope/">

      <item xmlns:ns4071="http://xml.apache.org/xml-soap" xsi:type="ns4071:Map">
        <item>
          <key xsi:type="xsd:string">ascii</key>
          <value xsi:type="xsd:string">ertzyuuioasdcnERSTZYUIOADCN</value>
        </item>
        <item>
          <key xsi:type="xsd:string">latin2</key>
          <value xsi:type="xsd:string">xy</value>
        </item>
        <item>
          <key xsi:type="xsd:string">w1250</key>
          <value xsi:type="xsd:string">pq</value>
        </item>
      </item>

    </ns1:EncodingTestResponse>
  </SOAP-ENV:Body>
</SOAP-ENV:Envelope>

Calling method:

[SoapTrace]
[SoapDocumentMethod("EncodingTest",ParameterStyle=SoapParameterStyle.Wrapped)]
public item EncodingTest()
{
    var obj = this.Invoke("EncodingTest", new object[] {});
    return null;
}

and also the object, that we was attempting to deserialize:

[Serializable]	
[XmlType(Namespace = "http://xml.apache.org/xml-soap", TypeName="item")]
public class item
{
	[XmlArray("item", Form = XmlSchemaForm.Unqualified)]
	public item[] items { get; set; }

	[XmlElement(Form=XmlSchemaForm.Unqualified)]
	public string key { get; set; }

	[XmlElement(Form = XmlSchemaForm.Unqualified)]
	public string value { get; set; }
}

c# .net web-services apache serialization

I solve this, however it wasn't easy. A minimum of i learned controling xml deserialization.. :)

[SoapDocumentMethod(ResponseElementName = "EncodingTestResponse", ResponseNamespace = "http://schemas.xmlsoap.org/soap/envelope/")]
[return: XmlArray("item", Namespace = "", IsNullable = false)]
[SoapTrace]
public item[] EncodingTest()
{
    object[] result = this.Invoke("EncodingTest", new object[] { });
    return (item[])result[0];
}


[SoapType(TypeName = "Map", Namespace = "http://xml.apache.org/xml-soap")]
    public class item
    {
    	[XmlElement(Form = XmlSchemaForm.Unqualified)]
    	public string key { get; set; }

    	[XmlElement(Form = XmlSchemaForm.Unqualified)]
    	public string value { get; set; }

    	public item[] items { get; set; }
    }

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