Where are my Report Classes (C# classes corresponding to my RPTs)?

Question

In almost all samples I downloaded from BO, there is one ".cs" file that corresponds to an ".rpt" file. This c# file has an autogenerated header. and there are two classes in it. One with identical name to the report and one with the same name but "Cached" in front of it. For instance:
    public class Customer : ReportClass {
   [System.Drawing.ToolboxBitmapAttribute(typeof
(CrystalDecisions.Shared.ExportOptions), "report.bmp")]
public class CachedCustomer : Component, ICachedReport
When I add a CrystalReports report to my asp.net project, i just get an ".rpt" file.
What are the ramifications of not having these classes? Does the 'cached" class help with me performance?
thanks
jeff

Answer 1

there should be no problems with the missing class files.  They will only exist in Windows applications or web applications migrated from VS2003 or earlier.  VS2005 does not generate these files for web applications.  All they did was allow you to reference the report as a strongly-typed report (ie: dim myrpt as new SalesReport() )   in your application and the report would be embedded in the application. 
With VS2005 and higher web applications, you must load the reports from disk using
ReportDocument.Load(pathToReport).
the Cached report class would only help if you had a massive report (hundreds of pages) that took a long time to return.  this report would also have to be shareable (ie all users see exactly the same data).  The downside is that it would occupy a chunk of memory on the server for an extended period of time.