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I might add that I wan the parameter only to display on the subreport. It does not enter into any filtering of data.
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I might add that I wan the parameter only to display on the subreport. It does not enter into any filtering of data.

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do you need to just show the MachineSN, in the subreport as text or your need to extract data related to this MachineSN.
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do you need to just show the MachineSN, in the subreport as text or your need to extract data related to this MachineSN.

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peter57r: that did the trick.<br />
<br />
shared variables are tricky ... it took me a while to figure out that they have to appear on the main report somewhere in order to get initialized and show up on the subreport.
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peter57r: that did the trick.

shared variables are tricky ... it took me a while to figure out that they have to appear on the main report somewhere in order to get initialized and show up on the subreport.

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I'm using C# 4.0 to display a Crystal Reports Viewer report.<br />
<br />
The CR report contains a subreport. I need to add a parameter MachineSN to the subreport.<br />
<br />
I've added the parameter to the main report but I can't access it in the subreport. On the main report I can right-click on the subreport box and choose Change Subreport Links. If I select MachineSN, it wants to create a filter.<br />
<br />
If I manually add a parameter MachineSN to the subreport, I'm prompted for it when the report runs.<br />
<br />
So, how can I make MachineSN available on the subreport?
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I'm using C# 4.0 to display a Crystal Reports Viewer report.

The CR report contains a subreport. I need to add a parameter MachineSN to the subreport.

I've added the parameter to the main report but I can't access it in the subreport. On the main report I can right-click on the subreport box and choose Change Subreport Links. If I select MachineSN, it wants to create a filter.

If I manually add a parameter MachineSN to the subreport, I'm prompted for it when the report runs.

So, how can I make MachineSN available on the subreport?

Using a main report parameter on a subreport in Crystal Reports Viewer

Crystal Reports is a business intelligence application from SAP SE. It is used to graphically design data connections and report layouts from a wide range of data sources including Excel spreadsheets, Oracle, SQL Server databases and Access databases, BusinessObjects Enterprise business views, and local file-system information. Report designers can place fields from these sources on the report design surface, and can also deploy them in custom formulas (using either BASIC or Crystal's own syntax), which are then placed on the design surface. Crystal Reports also supports subreports, graphing, and a limited amount of GIS functionality.

Crystal Reports

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).