crystal reports asp.net do i have to use setdatabaselogon

问题

I have a crystal report designed using xsd file (dataset with ado.net connection). Crystal version 14.2.5.2618 and using vs 2017... deployed to .net 4.7.2 framework website. I have a service (WCF) returning a dataset that is valid and filled. When I deploy the report to the web server the report prompts for a database login even though it is fine in development. Here is the code with names changed to protect the innocent.

m_myRPT.Load(Server.MapPath("~/Reports/my.rpt"))
m_myRPT.PrintOptions.PaperOrientation = PaperOrientation.Portrait
m_myRPT.SetDataSource(m_DS.Tables("dtData")) 'returned from WCF and is fine
CRV_reportviewer.ReportSource = m_MyRPT
CRV_reportviewer.DataBind()

Like I said, this works fine in development. All data is returned properly and the dataset checks out too. My questions are:

1) Do I HAVE to use SetDatabaseLogon (WCF service supplies data... report should not have access to database and I don't want it to access either)

2) Can I set this up so the dataset table suffices for report data ...

3) Shouldn't the DataSet with a valid table full of data suffice for the report to display... So basically...
4) How can I get rid of prompt (preferably without the report having access to the database) ?

Any answer to these questions would be great... I do not mind changing the report so it does not prompt for data without having to hard code database access credentials anywhere on the web pages... WCF Service provides data... n-tier application... I know these are four questions in one but number four is what I really need answered if anyone would be so kind

I used Crystal many times over the years but cannot recall having to give it access to the database...

Best Regards and thank you in advance;

回答1:

1, You must to ensure, that name of DataTable is the same in CrystalReport, if yes, go next step

2, It s not enough to only Set DataSource to a report, you must pass data to a report :

      ds.WriteXml(XmlDataPath)

save your dataset as xml, now you can add your generated xml to a Crystal Report, so open Crystal Report, go to Database> Database expert> Create New Connection> ADO.NET(xml) and choose path to generated xml

I faced the same problem, and these steps helped me

来源：https://stackoverflow.com/questions/54428830/crystal-reports-asp-net-do-i-have-to-use-setdatabaselogon

标签

vb.net

crystal-reports