Report Parameter Default Value at runtime

Post Author: DMiller
CA Forum: .NET
Hi,
I need to be able to create new parameters at runtime and have been somewhat successful in this endeavor. I have one remaining issue that I am hoping that somebody can help me with. Let me explain.
When you create a parameter from within the Crystal XI designer, you are able to specify a number of default values that will display as a list box at runtime. Eg. ParameterName is MaritalStatus and default values are ("Married", "Single", "Divorced" etc). There is also the ability to specify the Default Value in the Value Options area of the screen. This value could be set to any one of the default values above - let's say that I set it to "Single". By setting the Default Value, this causes the Parameter Fields screen, at runtime, to "Select" the specific default value set above - in this case "Single", instead of showing "..." as the parameter value.
The default value setting in the Value Options is beneficial when you have reports that are usually run with certain parameter values and only occasionally these need to change. Instead of having to specify every parameter value, the user only has to set the ones that have not been defaulted or they want to change.
So, I have been successful in creating the parameters at runtime and successfully running the report. I have been unsuccessful in setting the "Default Value" as seen in the Value Options area. I have tried a number of properties on the report parameter object and have not found anything to set this.
Does anybody know how to set the "Default Value" as seen in the Value Options area in the designer at runtime?
Thanks for any help.

Post Author: JerryB
CA Forum: .NET
You have described my scnario to a tee. Did you ever figure out how to get the single default value that is available in the "value options" area when working within the Crystal Reports development environment. I am using VB.Net and have a nice report menu form and viewer but recently a user ask me to set the default value in one of my combo boxes and I have been unsuccessful in finding the correct property to use.

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Report parameter default value do not default correctly

Hello Experts, I have a cascading parameters in my report.
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For this Second parameter I defaulted the parameter to show First Month in the retrieved list of Months. But the problem is it will display the default Date correctly only certain times (there is a refresh problem). If i select a different project and it
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Example: If I select Brisk from Project parameter, It will give me 18 months of Dates in the Date parameter. In that 18 month range first month is Sep-13 it will default to Sep-13 correctly. Then if I select a different project like "Creek" (example)
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FROM DATE_D D
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Thanks in advance

Thanks Vicky for reply.
Yes you are right but I did not use First function as the query above retrieves only one date.
I used your suggestion but it did not fix it.
In this report I have three parameters.
1. Project Code (Visible)
SELECT DISTINCT PROJECT_CODE
FROM      DIM.PROJECT
ORDER BY PROJECT_CODE
2. Project Date (Invisible)
SELECT
MAX(CASENA.MILESTONE
WHEN'ABCD'THENTRUNC(PROJECT_DATE,'MM')ELSENULLEND)PROJECT_DATE
FROM
DIM.PROJECTNA
WHERE(NA.PROJECT_CODE
=:PROJECT_CODE
or'ALL'=:PROJECT_CODE)
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SELECT DISTINCT
--DER_DATE is "Value Field"
TRUNC(D.DATE_KY, 'MM') DER_DATE
--Display_date is "Label Field"
, TO_CHAR(D.DATE_KY, 'Mon-YY')   Display_Date
FROM DATE_D D
WHERE DATE_KY BETWEEN ADD_MONTHS(:PROJECT_DATE, -6) AND ADD_MONTHS(:PROJECT_DATE, 6)
ORDER BY 1
Default Values Query:
SELECT DISTINCT TRUNC(DATE_KY, 'MM') AS DEFUALT_DATE
FROM            DATE_D D
WHERE        (DATE_KY = ADD_MONTHS(:PROJECT_DATE, - 6))
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query. I even tried using Project code as you suggested but I still got the same result.
Thanks a lot for your reply.

Crystal Report Parameter Default Value

Hi All,
I have one issues regarding the parameter in the report.
I have two parameter field in the report. The scenario will be as below:
In my report, i have mobile no & passport no parameter selection. Currently in my report, the selection was like below:
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Appreciated anyone who knows this able to advice.
Thanks.
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CK

hi,
Thanks for your feedback.
I have try one of the example below:
if(hasValue({?Country})=false) then true
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Hi Lone,
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http://msdn.microsoft.com/en-us/library/aa337498(v=sql.105).aspx.
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Regards
Vicky Liu

Dynamic parameter default values

Hello guy,
i'm having a little problem, i hope someone in here can help me. So, here is my situation:
I'm building a windows forms application in C# to display some reports. As i want to redesign all the controls, i made my own prompt to fill in the parameters. This works really fine, except one thing:
Whenever a parameter has default-values (so just a list of values is allowed), I switch from a textbox to a dropdown-menu filled with the default values.
No problems with static parameters, but i can't find a way to access the default values from dynamic parameters (values are retrieved from SQL-Server). The default prompt from the report-viewer can do it right, so i hope you can hep me with my following question:
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thanks
using:
Visual Studio 2010 v10.0.30319.1
Crystal Reports runtime engine .NET 4, v13.0.1.220
Crystal Reports for Visual Studio v13.0.1.220
Edited by: Peter Wurstberg on Oct 12, 2011 1:15 PM

I don't think the CR or Enterprise .NET SDK has any public APIs to retrieve default dynamic prompt values for crystal report parameter. With Java SDK there are no direct methods as well, however you can tap the HttpResponse object to read the prompt values that are sent to your viewer by the server as the viewer displays them and prompts you to select parameter value, however this method is not officially supported. With .NET SDK I am not sure if it is even possible. You have to use the standard viewer to see those values and let the viewer prompt with them, ratherthan your own controls.
Hope that helps.
Aasavari

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If this isn't the correct forum for this, then I apologize. Here is the situation:
Our company uses Microsoft Dynamics SL version 7.0 (formerly Solomon), which leverages a "runtime" version of Crystal Reports 10 for some custom reports (simply named "Crystal Reports 10 for Solomon"). These reports are stored as .rpt files but are opened from within Dynamics. About 15 of these reports have a "client" parameter and I am having to manually refresh the list of default values once a month because new clients are always getting added to the system. As you can imagine, this is a pain.
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Hello,
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Dan Kelleher

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using CrystalDecisions.ReportAppServer.CommonControls;
using CrystalDecisions.ReportAppServer.CommLayer;
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using CrystalDecisions.ReportAppServer.DataSetConversion;
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