using crystal report with asp.net

using crystal report with asp.net


1)i need to creat e report with a parameter , the value of which will be passed from front end
i have created a report & a parameter & passing value but when i execute i get a page where in again ia m asked for the parameter value & even after enetr teh value i get msg parameter not supplied

2) i need to create a forumla based on the paramater value
if param value="R"
field1 shld be dsiplayed
else
field2

3) when i view the report from IE the icons are not visible & when viewd in FF i get

submit query submit query submit query submit query submit query submit query 1 / 1 submit query submit query

4) i am creating mailing labels & wish to display the address based on the above paramter condition but not able to do it

here is an example, this is the code in the page load of my application with parameters. My parameters are @id and @cat - make sure you also include the list below

Imports CrystalDecisions
Imports CrystalDecisions.Shared
Imports CrystalDecisions.CrystalReports.Engine

Then in the page load:

Dim paramFields As New ParameterFields()
Dim paramFieldID As New ParameterField()
Dim paramFieldCat As New ParameterField()

Dim paramDiscreteValueID As New ParameterDiscreteValue()
Dim paramDiscreteValueCat As New ParameterDiscreteValue()

paramFieldID.Name = "@id"
paramDiscreteValueID.Value = 346
paramFieldID.CurrentValues.Add(paramDiscreteValueID)

paramFieldCat.Name = "@cat"
paramDiscreteValueCat.Value = 35
paramFieldCat.CurrentValues.Add(paramDiscreteValueCat)






paramFields.Add(paramFieldID)
paramFields.Add(paramFieldCat)

CrystalReportViewer1.ParameterFieldInfo = paramFields

sorry, forgot to mention in previous post, that is VB code.