Passing parameter from a webpage to a report

I am developing a website which need to allow user to pass through several webpages for criteria selection and generate a report base on the selected criteria finally.

Anyone know how to pass the selected value from a webpage to the SQL statement or stored procedure which used to generate the report? Or there are other methods to do so?look at the rendering methods of RS - there's one by URL where you can pass the parameters via URL and request the report.|||I believe you simply build a querystring and append the parameters and values to the end of the querystring.|||Thanks for your kindly reply.

I have another related question see whether anyone can help. Base on my current knowledge, I know that we can pass one value for each parameter. E.g. countryID=20. If I want to pass multiple values for this parameter, e.g. countryID=20, 21, 25, ... How can I do so? Also, how should I set it in report designer for this purpose?|||Can you explain little more in detail (perhaps with some sampoe) ? Is your data in the format 20,21,25 for each record ?|||You could pass in a string like you describe. You would need to have logic in your report or stored procedure to handle such a request, though...|||In my report, there is a chart to compare sales performance between several products which are selected by user. The number of selected products is not fixed. I need to pass multiple productID into the report.

Also, I face a problem that ...seem I can't pass parameters into SQL functions to build dataset. Is it a rule? The error msg is "Syntax error or access violation.". My statement is as follows:

select * from getTable(@.productID)

Notes: getTable is a user-defined function.|||so what u can do

Select * from table where productid in (@.productid)|||In the following statement, getTable is a function with many calculation.

select * from getTable(@.productID)

If I use the one below, I can't get what I want. Also, seem can't be a string e.g. "12, 13, 14"
Select * from table where productid in (@.productid)|||so just pass the value in paenthesis

like '12,13,14'. it will definitely work.

If it is a function. then it should return the value same as u mentioned like "12,13,14"
if u can make it " '12,13,14' " . Then you can pass on values.