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Changing Crystal Report ParameterField in VB

Posted on 2002-03-15
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Last Modified: 2009-12-16
Hi,

I have a Crystal Report which uses a stored procedure for its data source.  The stored
procedure has a parameter, TARGETDATE, which I am obtaining from the user and
trying to pass to Crystal.

I open a Crystal Report and set some values:
    With crwRpt
        .FormulaFields(1).Text = "'" & sDate1 & "'"
        .RecordSelectionFormula = sSel2
        .ParameterFields(0) = sSel1
    End With

The sSel1 variable is:  TARGETDATE;2002-03-15;TRUE

Even though this is the format stated in another EE question, I get the infamous 'Type mismatch'
error on the ParameterFields statement.  I am using VB6 and Crystal 8.

Any ideas?

Ken

   
0
Comment
Question by:kenspencer
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8 Comments
 
LVL 3

Author Comment

by:kenspencer
ID: 6869286
Forget to mention -- TARGETDATE is a string.
0
 
LVL 101

Expert Comment

by:mlmcc
ID: 6869327
The date passed must be a real date type.


Try
sSel1 = "TARGETDATE;" & date(2002,03,15) & ";TRUE"

good luck
mlmcc
0
 
LVL 101

Expert Comment

by:mlmcc
ID: 6869332
Forget to mention -- TARGETDATE is a string.
Missed that part.  The value must be a string
Try
sSel1 = "TARGETDATE;'2002-03-15';TRUE"

good luck
mlmcc
0
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Accepted Solution

by:
bill02 earned 100 total points
ID: 6869358
Make sure you have the crystal reports designer and runtime library reference included in your project and use this code it should work just change the_Crystal_report to your report name(crwRpt) and the parameter name to your parameter name good luck

Dim paramdefs As CRAXDRT.ParameterFieldDefinitions
Dim paramdef As CRAXDRT.ParameterFieldDefinition
Set paramdefs = The_Crystal_Report.ParameterFields
For Each paramdef In paramdefs
 With paramdef
    Select Case .ParameterFieldName
    Case "YOURREPORTFIELDNAME"
        .SetCurrentValue sSel1
    End Select
 End With
Next


0
 
LVL 3

Author Comment

by:kenspencer
ID: 6876653
mimcc:
   Tried enclosing date with single quotes -- still got type mismatch error.

bill02:
   I had seen this example in one of the Crystal manuals, but was hoping that a
simple assignment statement would work without going the 'long' way.  However,
I will try it.

Ken
0
 
LVL 3

Author Comment

by:kenspencer
ID: 6877150
Going the long route seems to have had some effect, since I do not get the 'Type Mismatch' error.  The parameter field name (in Crystal) was  {?TARGETDATE}.  However, it appears that the report starts to run before I get:

   Run-time error '20534':
   Error detected by database DLL.

I could not find this error code in the DB2 reference, so I am still needing assistance.  
I will post another question in the DB2 forum for that, but will hold this one open for any other suggestions.

It was supposed to be a simple report ...

Ken

0
 
LVL 3

Author Comment

by:kenspencer
ID: 6877308
Well, success at last.  Going the long route (mentioned above), I had to use:

   .SetCurrent Value  <just the date string>         'example: 2002-03-18

Thanks for the suggestions.  Since the short method did not work and the long method did, I will award points to bill02.  However, since I had seen that methodology in the Crystal Reports Developer's Guide prior to even asking this question, and that the string value required was just the date portion of sSel1, I will award a lower grade.

Thanks for everyone's suggestions.

Ken
0
 

Expert Comment

by:bill02
ID: 6878706
If you found the answer before asking you shouldn't have asked a answer that answers your question and does what you ask should recieve a higher than a c grade im taken back by that anyways thanks for the points
0

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