Vb.net – How to pass parameters to crystal report from vb.net code

crystal-reportsvb.net

I have created a crystal report (cross tab). I'm not using any dataset, instead I used the wizard in crystal report to call an procedure from my Database schema
(Provider given is Microsoft OLEDB provider for oracle, after which I gave my DB credentials(i.e. schema, username, password) and selected the procedure and selected the columns I wanted to display in the report).

There are 5 parameters that I need to pass it from the front end to generate the report. While viewing the crystal report preview, by giving parameters, the report works fine.

Now i want to pass these 5 parameters from the front end(vb.net) to show the report in the CrystalReportViewer. Please suggest the code to write in aspx.vb file.
(PS:- I did go through other forums and found out some code, but all of them were giving some or the other error, so am posting one so that i can get the code specific to my requirement).

Thanks in advance..

Best Answer

I have gotten the report to work... I wrote the code below:

    Dim RptDocument As New ReportDocument

    RptDocument.Load(Server.MapPath("rpt\Report.rpt"))

    RptDocument.SetParameterValue("param1", Session("param1"))
    RptDocument.SetParameterValue("param2", ddlparam2.SelectedValue)
    RptDocument.SetParameterValue("param3", param3.text)
    RptDocument.SetParameterValue("param4", param4.text)
    RptDocument.SetParameterValue("param5", param5.text)

    'Set login info
    Dim myLogin As CrystalDecisions.Shared.TableLogOnInfo

    Dim myTable As Table
    For Each myTable In RptDocument.Database.Tables
        myLogin = myTable.LogOnInfo
        myLogin.ConnectionInfo.ServerName = "server name"
        myLogin.ConnectionInfo.DatabaseName = ""
        myLogin.ConnectionInfo.UserID = "userid"
        myLogin.ConnectionInfo.Password = "pwd"
        myTable.ApplyLogOnInfo(myLogin)
        myTable.Location = myTable.Location

    CrystalReportViewer1.ReportSource = RptDocument

Created a System DNS and had to add Oracle.DataAccess.dll to reference and a class file (with functions same as that in connectooracle.vb class file but with different name), also set up a connection in global.asax to refer to that class connection and using Imports Oracle.DataAccess.Client instead of Imports System.Data.OracleClient (to avoid ambiguity)...

This somehow made it work and there might be some other solution for that..:) 

(For ref:- Adding  myLogin.ConnectionInfo.IntegratedSecurity = True  gave me this error--
Logon failed. Error in File C:\DOCUME~1\Username\LOCALS~1\Temp\Report {1AG3DD86-141D-43YA-B6A2-AEDF3459AE49}.rpt: Unable to connect: incorrect log on parameters.)
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