Crystal Reports - Default Parameters - crystal-reports

In Crystal reports, you can define default values for the report parameters.
For example, I might have a date range and set a default start of 12/01/2008 and a default end of 12/31/2008.
Is it possible to modify these defaults at runtime? For example:
1 - Default to the first and last days of the current month?
2 - Default to the first and last days of a proprietary company fiscal calendar? (i.e., look it up in a database)
3 - First & Last days of the current year?
You get the point. Is this possible? I'd even be open to a solution that involved running an external application to reach into the reports and modify them, if anyone knows how to do that.
Edit:
To answer the question posed by Philippe Grondier, most of these reports are run from inside an application. I was hoping for something simpler than manipulating the crystal object at runtime; I have my hands full right now with figuring out other parts of that API. I might take a look in the future, though.

Are you planning to run your crystal report from the crystal reports interface or as an add-in embedded in another program (you can for example use the Crystal Reports ActiveX Designer Runtime Support - craxdrt.dll - in VB code) ? In this last case, it is possible to manipulate every object of the report before launching it. Objects such as parameters can then be updated according to your needs.
As a simple example of such runtime update, my report printing routine will allways check if there is a field named "printedBy" in the report. In case this field is found, its value will be settled to the the domain name of the user that requests the report and will be printed out.
At an higher level, you can even reshape the report SQL string to add specific filters that can be inherited from your code. By doing so you might not even need parameters anymore: let your code add the filtering values 'on the fly'
EDIT: some code examples:
(m_rapport is a CRAXDRT.report object, ActiveSession is my current session object)
If m_rapport.ParameterFields.Count > 0 Then
For i = 1 To m_rapport.ParameterFields.Count
If m_rapport.ParameterFields(i).Name = "{?PUB_DateDebutPeriode}" Then
m_rapport.ParameterFields(i).AddCurrentValue CDate(DateValue(sessionActive.dateDebutPeriode))
End If
If m_rapport.ParameterFields(i).Name = "{?PUB_DateFinPeriode}" Then
m_rapport.ParameterFields(i).AddCurrentValue CDate(DateValue(sessionActive.dateFinPeriode))
End If
If m_rapport.ParameterFields(i).Name = "{?PUB_id_Personne}" Then
m_rapport.ParameterFields(i).AddCurrentValue StringFromGUID(clientActif.id_Personne)
End If
Next i
Endif
I also have another function to change report's datasource at runtime, so that reports can be executed on different servers/locations.

Read my posting Crystal Reports: Named-Date-Range Parameters. Maybe you'll be able to leverage this technique for your purposes.

Related

my report run but does not display anything in oracle

I have designed report in 10g. When I call report through forms 10g than report executed but do not display anything. Kindly help me what I have to do to resolve this issue. I use .rep report and desformat is PDF. One thing more when in this desformat my report started downloading instead of giving a preview in internet explorer and downloaded pdf is empty (contain nothing).
Report displays the result of a query. So the most obvious question is: does the query, when you run it outside of the Forms/Reports application, work correctly and returns the result?
If it accepts certain parameters, verify that they are correctly passed. Mind the datatype, especially if DATE is involved as people usually have problems with different format masks, NLS settings and stuff.
Also, check whether those parameters are obligatory or not. If not, report's query should contain something like
where (some_value = :parameter_value or :parameter_value is null)
Furthermore, make sure that all those parameters are passed to the report. You can display their values in the report, just to see what's going on. Open Reports Paper Layout Editor, go to the margin and - using the ampersand notation - display those values, such as
Parameter one = &parameter_one
Parameter two = &parameter_two

Error in Opening Report from Form

I have a Form which will help me to filter out the records I want for my Report. The button will open the Report On Click.
This is the code in the button:
Private Sub Open_OEE_Click()
DoCmd.OpenReport "OEE_Report", acViewReport, , , acWindowNormal
End Sub
I keep getting the error:
I also have placed the query in my report under the Record Source as:
SELECT * FROM 3_OEE WHERE ((([3_OEE].RecordID)=Forms![3_OEE_Report]!cboRecordID) And (([3_OEE].Date_Recorded)=DateValue(Forms![3_OEE_Report]!Date_Recorded)) And (([3_OEE].MC_No)=Forms![3_OEE_Report]!cboMCNo) And (([3_OEE].Product)=Forms![3_OEE_Report]!cboProduct));
I want to search based on one criteria (text box or combo box) and not all four at once.
Am I missing out something?
MS-Access does tend to go a bit overboard with the brackets. Make the report's Record Source a bit easier to read by trimming out the unnecessary ones. You also need to get your date criterion in the right format - Access always uses US formatting in SQL queries and needs # signs around the date:
SELECT * FROM 3_OEE
WHERE [3_OEE].RecordID = Forms![3_OEE_Report]!cboRecordID
And [3_OEE].Date_Recorded = Format(Forms![3_OEE_Report]!Date_Recorded, "\#mm/dd/yyyy\#")
And [3_OEE].MC_No = Forms![3_OEE_Report]!cboMCNo
And [3_OEE].Product = Forms![3_OEE_Report]!cboProduct;
I would also suggest creating a named query for this and setting the report's Record Source to the named query. You can then test the query in isolation without having to run the report (but make sure the Form is open and the relevant controls are populated).
I asked for help from another source.
Answer to Question

SAP Central Management Console Parameters not aligned

I have been designing Crystal Reports, and publishing them to the SAP Central Management Console, for the past couple of years; but I have never come across this really strange issue before!
The report in question has 7 Parameters:
1 is a static String Parameter,
1 is a static Date Range Parameter
3 are static Number Parameters
1 is a static String Parameter with a pre-defined list of values
1 is a multi-level dynamic String Parameter
All of these parameters work fine when running reports from the Designer application itself, but as soon as it's published to the Central Management Console it all messes up:
If you choose the first Parameter, you get the first parameter input screen.
If you choose the second Parameter, you get the first parameter input screen.
If you choose the third Parameter, you get the second parameter input screen.
If you choose the fourth Parameter, you get the third parameter input screen.
etc
This means that there is no way of selecting the 7th Parameter as it shows you the 6th parameter input screen.
This behavior started when I added two of the static Number Parameters. Before this everything worked fine, and I cannot find online documentation/help which would allude to a Parameter limit in CMC.
Crystal Reports Designer Version: Crystal Reports 2008, Version 12.3.0.601
Central Management Console Version: SAP BusinessObjects Enterprise XI, Product 12.1.0
Thanks in advance for any help!
After investigating I realised that the problem was Central Management Console does not interact well with multi-level parameters.
I changed the multi-level parameter to two separate parameters, and everything is working.

Text input through SSRS parameter including a Field name

I have a SSRS "statement" type report that has general layout of text boxes and tables. For the main text box I want to let the user supply the value as a parameter so the text can be customized, i.e.
Parameters!MainText.Value = "Dear Mr.Doe, Here is your statement."
then I can set the text box value to be the value of the parameter:
=Parameters!MainText.Value
However, I need to be able to allow the incoming parameter value to include a dataset field, like so:
Parameters!MainText.Value = "Dear Mr.Doe, Here is your [Fields!RunDate.Value] statement"
so that my report output would look like:
"Dear Mr.Doe, Here is your November statement."
I know that you can define it to do this in the text box by supplying the static text and the field request, but I need SSRS to recognize that inside the parameter string there is a field request that needs to be escaped and bound.
Does anyone have any ideas for this? I am using SSRS 2008R2
Have you tried concatenating?
Parameters!MainText.Value = "Dear Mr.Doe, Here is your" & [Fields!RunDate.Value] & "statement"
There are a few dramatically different approaches. To know which is best for you will require more information:
Embedded code in the report. Probably the quickest to
implement would be embedded code in the report that returned the
parameter, but called String.Replace() appropriately to substitute
in dynamic values. You'll need to establish some code for the user for which strings will be replaced. Embedded code will get you access to many objects in the report. For example:
Public Function TestGlobals(ByVal s As String) As String
Return Report.Globals.ExecutionTime.ToString
End Function
will return the execution time. Other methods of accessing parameters for the report are shown here.
1.5 If this function is getting very large, look at using a custom assembly. Then you can have a better authoring experience with Visual Studio
Modify the XML. Depending on where you use
this, you could directly modify the .rdl/.rdlc XML.
Consider other tools, such as ReportBuilder. IF you need to give the user
more flexibility over report authoring, there are many tools built
specifically for this purpose, such as SSRS's Report Builder.
Here's another approach: Display the parameter string with the dataset value already filled in.
To do so: create a parameter named RunDate for example and set Default value to "get values from a query" and select the first dataset and value field (RunDate). Now the parameter will hold the RunDate field and you can use it elsewhere. Make this parameter hidden or internal and set the correct data type. e.g. Date/Time so you can format its value later.
Now create the second parameter which will hold the default text you want:
Parameters!MainText.Value = "Dear Mr.Doe, Here is your [Parameters!RunDate.Value] statement"
Not sure if this syntax works but you get the idea. You can also do formatting here e.g. only the month of a Datetime:
="Dear Mr.Doe, Here is your " & Format(Parameters!RunDate.Value, "MMMM") & " statement"
This approach uses only built-in methods and avoids the need for a parser so the user doesn't have to learn the syntax for it.
There is of course one drawback: the user has complete control over the parameter contents and can supply a value that doesn't match the report content - but that is also the case with the String Replace method.
And just for the sake of completeness there's also the simplistic option: append multiple parameters: create 2 parameters named MainTextBeforeRunDate and MainTextAfterRunDate.
The Textbox value expression becomes:
=Parameters!MainTextBeforeRunDate.Value & Fields!RunDate.Value & Parameters!MainTextAfterRunDate.Value.
This should explain itself. The simplest solution is often the best, but in this case I have my doubts. At least this makes sure your RunDate ends up in the final report text.

Database-field with false as value sent over XSD to Crystal Reports is evaluated as true

The application I work on is using a Crystal Reports to present reports to the user. I am using Visual 2010, but the report was created by a previous employee some years back using Visual2005.
The basic setup is that the client application make a request to the server that uses a xsd that define the data-set it sends back. Generally this work like expected, but I am having some problems with evaluating booleans.
A recent task consider of adding the dataset with a field name TrueWeekday that control if certain numbers should be printed out or not depending on if a date is a regular weekday or have some special local meaning that might affect the sampled data. The data is always used in some formulas so I can not exclude it from the dataset.
My first attempt involved defining the new field as a boolean and in the formula for the report I wrote
if {Header.TrueWeekday} then
CStr({Detail.Flow})
else
""
This had the result that no matter if the value in TrueWeekday was false or true the flow was presented. I debuged the server to verify that the variable indeed got the expected value so the problem happened in the Crystal Reports or in the transfer of data to Crystal Reports.
To solve this particular problem within the timeconstraints of the task I changed the field to the type string and wrote
if {Header.TrueWeekday} = "false" then
CStr({Detail.Flow})
else
""
This worked like a charm.
My problem here is not urgent since I have a working solution, but I am worried that this problem might create more subtle dataintrigity problems.
What might be the cause of this and how do I solve it?
Header.TrueWeekday is probably being passed as a string so that when you do if {Header.TrueWeekday} its testing a string as a boolean in which case if the string contains anything it evaluates to true and thus causes your problem
Work in a different project made me realize that .Net is probably serializing the boolean as the text string true/false. If then Crystal Reports does sloppy import and only check
input != 0
you will get the result that both true and false map to true after the transfer.