TOPIC:

I am trying to use ReportPro2 and get the following error:

errorXS0144: Cannot create an instance of the abstract class or interface 'ReportPro2.RpReport'

I have referenced:
ReportPro2.Base.dll
ReportPro2.English.dll
Report.Pro2.Export.dll
ReportPro2.Runtime.dll
ReportPro2.UDF.dll
System
System.Drawing
System.Windows.Forms
VOGUIClasses
VORDDClasses
VOSystemClasses
XSharp.RT
XSharp.VO

A #using ReportPro2 also does not help.

What am I missing?
Ulrich

Hi Ulrich,
unfortunately RpReport is an abstract class and cannot be instanciated.
You need to use the class RpReportRDD if using the RDD version.
Please see also this thread here:
www.xsharp.eu/forum/public-product/1510-...rated-vo-application
Wolfgang

Hi Wolfgang,

class RpReportRDD helped me to move on.
But I get 2 more open questions. Here is the code:

LOCAL oDB AS DBServer
LOCAL cPrint2Filename, cCaption, cMessage, cJobName, cReportName AS STRING
LOCAL oReport AS RpReportRDD

oDB := dbSErver{"c:\test\Test.dbf"}
oDB:Commit()
cReportName :="c:\test\Liste1.rpt"
cJobName := "Liste1"
cPrint2Filename := "Liste1 "

cCaption := " - Report Preview"
cMessage := "Printing in progress..."
oReport := RpReportRDD{ SELF, cReportName}
IF oReport:IsValid
oReport:PrintPreview(cJobName, cPrint2Filename, cCaption, cMessage, TRUE, SW_SHOWMAXIMIZED)
ENDIF
oDB:Close()
oReport:Close()

In the line oReport := RpReportRDD{ SELF, cReportName} I get the error XS1503: Argument 2: cannot convert from 'string' to 'logic'.

And in the line oReport:PrintPreview(cJobName, cPrint2Filename, cCaption, cMessage, TRUE, SW_SHOWMAXIMIZED) I get the error XS0103: The name 'SW_SHOWMAXIMIZED' does not exist in the current context.

As you might suppose the code is taken from VO.
So what must I change in XSharp?
Ulrich

Hi Ulrich,

unfortunately in the current ReportPro version for X# the parameter lists are not the same as in the VO version.
This is not a choice of the current development team, but by the people that moved ReportPro from VO to Vulcan.NET.
For the next version Robert has added default parameters to enhance the compatbility, see here:
www.xsharp.eu/forum/public-product/1510-...vo-application#11073

Currently, RpReportRDD has the following constructors:and the PrintPreview this parameter listTo solve such problems yourself, you should install ILSpy and look in the library source code or use the intellisense of your IDE.

Wolfgang

Ulrich, Wolfgang,

We will update the parameters in the next build. We will add default values for all parameters where that is possible.
We will also look at Wolfgangs suggestion to rename the base class and create 2 assemblies (RDD, SQL, DESIGNER) with a RpReport class that inherits from RpReportRDD, RpReportSQL and RpReportDesigner.
We will also include the header files in the assemblies so you don't need the headers anymore for constants such as PRINT_OK and PRINT_NOMORE

SW_SHOWMAXIMIZED is a define inside the VOWin32ApiLibrary. So you have to include that library.
(Unfortunately) VO allowed you to use defines from this library without even adding the library to your application. I found this very confusing, but could not change that in VO.

Robert

Hi Robert,
thank you very much for confirming!
Wolfgang

Hi all together,

referencing VOWin32APILIbrary helped me to get rid of the second error.

But now I get an exception error in the last of the following lines during runtime:
Here is what I get as Details:Any ideas?
Ulrich

Hi Ulrich,

since I don't use ReportPro myself, I don't have personal experiences.
The error message lets me understand that maybe your owner window needs an instance variable "HelpDisplay" - but please don't ask me why.
Normally, every window shoud have this as inherited from the base window class....
Wolfgang

Hi Ulrich,

I can not find anything in the RP2 code that could be producing this. Can you please create and post a full compilable (and self contained) sample that we can use to reproduce the problem?

Ulrich,
What is the call stack ?

Robert

Hi,
I have just sent a sample to Chris.
Ulrich

Hi Ulrich,

Thanks, I am seeing several issues, some are just typos, others we/you need to take care of:

1. There's a typo in the code in Start():

RddSetDefault( "DBFCDXX" ) // remove the double X

2. PrintPreview() is called with

oReport:PrintPreview(cJobName, cPrint2Filename, cCaption, cMessage, TRUE, SW_SHOWMAXIMIZED, 0, #test)

the last param whould be #NULL_SYMBOL

3. RP fails to open the dbf, because it is already opened by the code in exclusive mode, in
oDB := dbSErver{"c:\test\Sales.dbf"}

You must remove this line or change it to dbSErver{"c:\test\Sales.dbf" , TRUE}

4. This is a version of RP2 which has not been compiled with the latest runtime, and it uses functions with different casing than the current one, such as Pow() which is used as POW()

So I'd say please wait a few days, until we release a new X# build and also a newer version of RP2. Also indeed we need to make the RP2 method calls more compatible to that of VO, because the way they are now, it is difficult to know what to change, causing problems like (2). I am very surprised this was not brought up very often in the vulcan days as well, maybe very few people used RP with vulcan...

Hi Chris,

thanks for your answer.
So I will wait.

Ulrich