vb.net Parameter Default Value

[Former Member]

Hi,

I have an application coded in vb.net that opens a crystal report in the crystal report viewer. I understand how to set parameter values in my vb.net code, but I also want to be able to access the default value of the parameter that is already assigned within the crystal report. Does anyone know how I access the default value of the parameter?

Thanks

[former_member11696 · Accepted solution]

Hi Chris,

Build the project and test it and see what the various properties of the report it gets.

It will only get what is saved in the Report, what changes/updates you make in code will not return, you'll have to keep track of them yourself.

Don

[former_member11696]

As I mentioned, have a look at this project, it has routines on how to get the info:

Have a look at this test app: https://blogs.sap.com/2016/02/17/how-to-parameters-in-crystal-reports-for-visual-studio-net/

There are sites out there that will convert C# to VB... easy enough to do yourself though.

Don

[Former Member]

Hi Don,

Looking through the code I think this is the line that pulls in the value : getDiscreteValues(paramfield). Is this correct? Do you know if this pulls in the current values from a previous run of the report or the default value?

[former_member11696]

Yes, WIKI page tells you what versions support what versions...

[Former Member]

My code is working, I just don't know the syntax to pull in the default values for the parameters, where needed, in my code. Do you know the syntax to do this?

[former_member11696]

Ah, SP 13 is n ot supported in VS 2019, you need the latest SP 19 from here:

https://wiki.scn.sap.com/wiki/display/BOBJ/Crystal+Reports%2C+Developer+for+Visual+Studio+Downloads

Uninstall first, then install just the EXE, don't install the MSI's nat required on your DEV PC.

Wiki above has all of the latest info.

Don

[Former Member]

I installed the latest version, SP29, Will that work as well?

[former_member11696]

Hi Chris,

What version of the sDK are you using?

Have a look at this test app: https://blogs.sap.com/2016/02/17/how-to-parameters-in-crystal-reports-for-visual-studio-net/

It's C# but in the drop down list box there is a routine to get parameter values.

Don

[Former Member]

I am using Visual Studio 2019. The SDK I Installed was titled "crnet13_sp14_api_en". I looked through your code and I'm having trouble finding where you call the default value of the parameter. Can you assist?