Solved

"A string is required here error" message

Posted on 2009-05-20
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Last Modified: 2012-05-07
Can anyone with understanding of ASP/Crystal Reports, please tell me where the following line of code points?

session("oRpt").ReadRecords

I just kept getting the error that says simply: "A string is required here error"

and the error points to the session("oRpt").ReadRecords line.

I have been pulling my here now for 2 days.

I have looked at the .rpt file and what needs to be Datefield is date field.

Only suspicion I have is the logic that says, "If user's selection = "All", then show all values partaining to that field.

Otherwise show the only selected value.

So, for example, there is a checkbox with ALL alongside of FromDate and ToDate.

Not sure if that ALL is creating these issues.

Thanks in advance
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Question by:simflex
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12 Comments
 
LVL 30

Expert Comment

by:Wayne Barron
ID: 24433247
Make sure that that Field in the database is of the Right [Data Type]
If it is a Number Field, Make sure that it is set as Number
If it is a Text field, make sure that it is set as [Text]
(Would would explain the error somewhat)

Carrzkiss
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Author Comment

by:simflex
ID: 24434244
thanks Carrzkiss

Problem with ASP/Crystal reports is that sometimes, as in this case, you don't get much details.

That line was all I got.

I have checked the db and they have the correct data type.

So, what you are saying is that this line:

session("oRpt").ReadRecords is pointing to the db?
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LVL 30

Expert Comment

by:Wayne Barron
ID: 24434335
Maybe.
The session
Part is pointing to a session variable.

Please have a look at the following
Crystal Reports: Tutorials and Sample Code
And the old faithful
Google Search for Crystal Report Tutorials

I do not know anything about Crystal Report, I have seen it mentioned and asked
About for a while here on EE, if it was not for EE, then I doubt that I would ever hear about it.

Good Luck
Hope that you can get it resolved.

(Look into a session, as I think that is what that is referring too.
Also, get a hold of the original source and link and see if there is some
Documentation on it as well)

Also.
Is this ASP.NET?
(or) Classic ASP?
If it is ASP.NET , then you can click on the [Request Attention]
And ask to have it re-zoned to ASP.NET

Carrzkiss
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Author Comment

by:simflex
ID: 24434449
Yea, I forgot to mention that I do have several reports fully integrated into ASP (Yes, Classic ASP) and working fine.

The reason this one is kicking my tail is because of that simple but hard to figure out error that says, "A string is required here"
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LVL 30

Expert Comment

by:Wayne Barron
ID: 24434538
Change this
session("oRpt").ReadRecords
To this
CStr(session("oRpt").ReadRecords)

And see if it will compile with errors?
Carrzkiss
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Author Comment

by:simflex
ID: 24434629
still same error:

Crystal Reports ActiveX Designer error '80047405'

A string is required here.
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LVL 30

Expert Comment

by:Wayne Barron
ID: 24434701
There is absolutely "nothing" on that error what so ever.???

I am sorry, but I really do not know what else to do.
Did you download this project from someone's site?
If so, then you need to go back to their site and see if you can find
Some more info on it, as I have run out of resources over here.

Sorry
Good Luck
Carrzkiss
0
 

Author Comment

by:simflex
ID: 24434865
see what I mean?

Not enough errors to go any meaninful research.

Thanks a lot dude!
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LVL 1

Expert Comment

by:sidkud
ID: 24442623
I guess this has to do with the syntax in
1) a formula used in the report or
2) the selection formula

Most probably this is failing at run time while concatenating or calculating and for some specific data.
... so as carrzkiss: said, you first need to check that the actual data is of the type that it says it is,
(you may want to look at the formulas for that)
and, try running the report for a different set of data (using different filters conditions etc.)
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LVL 1

Accepted Solution

by:
sidkud earned 50 total points
ID: 24444031
I believe the readrecords method is responsible for actually pulling the data from the server, based on the filter criteria, so please examine the logic used for filtering,
More specifically, the text between these two lines

Set session("oRpt") = session("oApp").OpenReport(path & "\" & reportname, 1)
...
...
session("oRpt").ReadRecords

I have attached a code snippet with my understanding of the report filter
if Request.Form("CheckAll") = "on" THEN

	session("oRpt").RecordSelectionFormula = ""
 

else

	Session("oRpt").ParameterFields.GetItemByName("StartDate").AddCurrentValue(CStr(" & request.form("SDate") & "))"

	Session("oRpt").ParameterFields.GetItemByName("EndDate").AddCurrentValue(CStr(" & request.form("EDate") & "))"

	session("oRpt").RecordSelectionFormula = "{t1.test_date} in DateTime ({?StartDate}) to DateTime ({?EndDate})"

end if

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Author Comment

by:simflex
ID: 24520362
Thanks a lot. I almost forgot about this post because I got frustrated and left it alone.
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LVL 1

Expert Comment

by:sidkud
ID: 24533127
Hi,
Hope you got this to work.
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