Ui Builder Class

Below code is example for UI Builder Class 

 final class ReportGSTForSettlementPeriodReportUiBuilder  extends SrsReportDataContractUIBuilder

{

        DialogField                            EntityIdField;//SubProjIdField;

    TaxReportInclAdjustmentContractCopy               contract;

        //ProjTable                              projtable;

        TaxReportInclAdjustmentTmpCopy  taxReportInclAdjustmentTmpCopy;

        public void Postbuild()

        {

            super();

            //get reference to custAccount dialog field

        EntityIdField = this.bindInfo().getDialogField(this.dataContractObject(), methodStr(TaxReportInclAdjustmentContractCopy, parmEntityId));

            //override the lookup method

        EntityIdField.registerOverrideMethod(methodStr(FormStringControl, lookup), methodStr(ReportGSTForSettlementPeriodReportUiBuilder, lookupEntityName), this);

        }

        //this method provies lookup for subproject parameter

        public void lookupEntityName(FormStringControl _formStringControl)

        {

            Query query = new Query();

            QueryBuildDataSource qbds;

            SysTableLookup       sysTableLookup;

        sysTableLookup = SysTableLookup::newParameters(tableNum(CompanyInfo), _formStringControl);

            

        qbds = query.addDataSource(tableNum(CompanyInfo));

        sysTablelookup.addLookupfield(fieldNum(CompanyInfo, DataArea)); //lookup for Entity Name

        sysTablelookup.addLookupfield(fieldNum(CompanyInfo, Name));   //lookup for Entity ID

        //sysTablelookup.addLookupfield(fieldNum(CompanyInfo, ));   // lookup for project type

            //sysTablelookup.addLookupfield(fieldNum(CompanyInfo,CustAccount));

            //sysTablelookup.addLookupfield(fieldNum(ProjTable,));

        qbds.addRange(fieldNum(CompanyInfo, DataArea ));//.value(strFmt('(%1 != "")',fieldStr(CompanyInfo, PartyNumber))); //this line is for adding range in sub project parameter to show only sub projects

            sysTableLookup.parmQuery(query);

            sysTableLookup.performFormLookup();

        }

}