Description:-
A Report data provider class
is commonly known as RDP. RDP is the data source type which is available when
we add a new dataset to the report in Visual Studio. RDP is a class which
resides inside AX and executes the business logic, processes the data, and returns
a dataset which is rendered in the report.
A Report data provider class
should be ideally used in the following cases:
We cannot directly use a query
to access the data from the database
The data has to prepare on the
basis of business logic
To define a Report data provider class, we use the
following syntax:
[SRSReportParameterAttribute(classStr(SalesInvoiceRegisterContract))]
class SalesInvoiceRegisterDp extends SRSReportDataProviderBase
{
CustAccount _CustAccount;
BaseDate _FromDate,_ToDate;
SalesInvoiceRegisterContract _Contract;
SalesInvoiceRegistertmp SalesInvoiceRegistertmp;
}
Now create table return method
in data provider class like below.
[SRSReportDataSetAttribute("SalesInvoiceRegistertmp")]
public SalesInvoiceRegistertmp
getSalesInvoiceRegistertmp()
{
select
* from SalesInvoiceRegistertmp;//temp table
return
SalesInvoiceRegistertmp;
}
Now create ProcessReport
method in Data Provider class.
public void
processReport()
{
_Contract = this.parmDataContract();
_FromDate = _Contract.ParmFromDate();
_ToDate = _Contract.ParmToDate();
_CustAccount = _Contract.ParmCustAccount();
}
Report contract class
Report contracts in AX 2012 are used for defining
parameters to the SSRS report. We can define any number of parameters using X++
statements of any data type, which can be passed on to the RDP class. And then,
we can use the same contracts to query data from the database engine which will
decrease an overhead on execution of a query in SQL.
To define a Report contract class we use the
following syntax:
[DataContractAttribute]
class SalesInvoiceRegisterContract implements SysOperationValidatable
{
BaseDate FromDate,ToDate;
CustAccount CustAccount;
}
Now create customer account
parameter method in contract class.
[DataMemberAttribute("Customer"),SysOperationLabelAttribute("Customer"),SysOperationDisplayOrderAttribute('1')]
public CustAccount ParmCustAccount(CustAccount
_CustAccount = CustAccount)
{
CustAccount = _CustAccount;
return
CustAccount;
}
Now create from date and to
date method In contract class.
[DataMemberAttribute('FromDate'), SysOperationLabelAttribute('From Date'), SysOperationDisplayOrderAttribute("2")]
Public BaseDate ParmFromDate(BaseDate _FromDate =
FromDate)
{
FromDate = _FromDate;
return
FromDate;
}
[DataMemberAttribute('ToDate'), SysOperationLabelAttribute('To Date'), SysOperationDisplayOrderAttribute("3")]
Public BaseDate ParmToDate(BaseDate _ToDate = ToDate)
{
ToDate = _ToDate;
return
ToDate;
}
Now create validate method in
contract class for validate report parameter in contract class like below.
public boolean
validate()
{
boolean
isValid = true;
if
(!FromDate)
{
isValid = checkFailed(strFmt("@SYS84753",
"@SYS180311"));
}
if
(!ToDate)
{
isValid = checkFailed(strFmt("@SYS84753",
"@SYS180217"));
}
if(FromDate
&& ToDate)
{
if
(FromDate > ToDate)
{
isValid = checkFailed(strFmt("@SYS300457",
date2StrUsr(FromDate, DateFlags::FormatAll), date2StrUsr(ToDate,
DateFlags::FormatAll)));
}
}
return
isValid;
}
Now in Visual Studio add the
following
Add Report
Add Data Set
Set the Properties for that
Data Set.
Set the Parameters you want to
set blank value for ItemId Parameters
Allow blank = true
Null-able = true
Add Precision Design
Deployed SSRS Report and Run it.
