SSRS report contract class

ETGVendorPaymentOrderReportContract.cs

[
    DataContractAttribute
]
public class ETGVendorPaymentOrderReportContract implements SysOperationValidatable
{
    LedgerJournalId ledgerJournalId;

    [
        DataMemberAttribute('ledgerJournalId'),
        SysOperationLabelAttribute(literalstr("@SYS328705")),
        SysOperationHelpTextAttribute(literalstr("@SYS328705")),
        SysOperationDisplayOrderAttribute('1')
    ]
    public LedgerJournalId parmLedgerJournalId(LedgerJournalId _ledgerJournalId = ledgerJournalId)
    {
        ledgerJournalId = _ledgerJournalId;
        return ledgerJournalId;
    }

    public boolean validate()
    {
        boolean isValid = true;

        if (!ledgerJournalId)
        {
            isValid = checkFailed(strfmt("Günlük zorunludur."));
        }

        return isValid;
    }

}