I am able to deserialize an array using XMLSerializer but the size of an
array is 0.The problem seems to be because of unqualified element name but I
am not very sure.

Here is what I did:

I get the following xml from the server

===================================================

<fault xsi:type="FdkException" xmlns="http://xmlns.oracle.com/content/ws"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
        <exceptionEntries soapenc:arrayType="FdkExceptionEntry[1]"
xsi:type="soapenc:Array"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">
            <exceptionEntries xsi:type="FdkExceptionEntry">
                <detailedErrorCode
xsi:type="xsd:string">ORACLE.FDK.ServerError</detailedErrorCode>               
                <serverStackTraceId
xsi:type="xsd:string">22-1132729995032</serverStackTraceId>
            </exceptionEntries>           
        </exceptionEntries>               
</fault>   

===================================================

I want to deserialize the complex type FdkException which has an array of
FdkExceptionEntry.Definition of the the types are follows

[System.Serializable]   
[XmlRootAttribute("fault",
Namespace="http://xmlns.oracle.com/content/ws",IsNullable = false)]
[System.Xml.Serialization.XmlType("FdkException",
Namespace="http://xmlns.oracle.com/content/ws")]   

public class FdkException
{   
       

  public FdkExceptionEntry[] exceptionEntries;
       
}
   

[System.Serializable]   
[System.Xml.Serialization.SoapTypeAttribute("FdkExceptionEntry",
"http://xmlns.oracle.com/content/ws")]   
[System.Xml.Serialization.XmlType("FdkExceptionEntry",
Namespace="http://xmlns.oracle.com/content/ws")]   
public class FdkExceptionEntry
{
   public string detailedErrorCode;        
       
    public string serverStackTraceId;
}

If  I change the XML from the server to the following, array is deserialised
perfectly with length 1.

===================================================

<fault xsi:type="FdkException" xmlns="http://xmlns.oracle.com/content/ws"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
        <exceptionEntries soapenc:arrayType="FdkExceptionEntry[1]"
xsi:type="soapenc:Array"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">
            <FdkExceptionEntry>
                <detailedErrorCode
xsi:type="xsd:string">ORACLE.FDK.ServerError</detailedErrorCode>               
                <serverStackTraceId
xsi:type="xsd:string">22-1132729995032</serverStackTraceId>
            </FdkExceptionEntry>           
        </exceptionEntries>               
</fault>   

===================================================

Client Code:

System.Xml.Serialization.XmlSerializer ser= new
System.Xml.Serialization.XmlSerializer(typeof(FdkException));
FdkException  fault= (FdkException)
ser.Deserialize(new    System.Xml.XmlTextReader(XMLStream));                       
XMLStream.Close();

--gaurav