SSRS report builderUI issue (AX2012)

Hi,

I have been trying to build a new SSRS report in AX 2012. As I will need a lookup which has a range attached to it I need to use the ReportBuilderUI class as per this link:

http://dynamicsaxgyan.wordpress.com/2012/05/11/add-dialog-fields-and-runtime-lookups-in-ssrs-report-parameters-dynamics-ax-2012/

I have created the clases methods as per the tutorial and I have also been compairing to HcmPeopleDepartmentUIBuilder which is a class that I found recomended on another forum.

The issue here is when I get to the DP class and call my parm methods to get the values set in the dialog the values have been lost. I am assuming that they have not been packed or the instance has been lost but I am not sure why.

In my contract I have the following attributes:

[
    DataContractAttribute,
    SysOperationContractProcessingAttribute(classstr(RawmaterialReportUIBuilder))
]

along with parm methods for the values I want. They all have the following atribute:

[DataMemberAttribute('ItemId')]

in my ReportUIBuilder class I have the following

class RawmaterialReportUIBuilder extends SrsReportDataContractUIBuilder

and in the build method:

RawMaterialReportContract   contract    = this.dataContractObject();   

contract = this.dataContractObject();

dialogItemId        = this.addDialogField(methodStr(RawMaterialReportContract, parmItemId), contract);

and in the getfrom dialog:

RawMaterialReportContract   contract    = this.dataContractObject();
;

super();

contract.parmItemId(dialogItemId.value());

And (finally) my DP class:

[
    SRSReportQueryAttribute(queryStr(SRInventTable)),
    SRSReportParameterAttribute(classstr(RawMaterialReportContract))
]
class RawMaterialDP extends SRSReportDataProviderBase

and the processReport method:

[SysEntryPointAttribute]
public void processReport()

{

    contract                    = this.parmDataContract() as RawMaterialReportContract;
    info(strFmt("Here: %1 end value",contract.parmItemId()));

}

I get nothing from the parm methods at this point.

Any ideas?