How to render the Report to PDF/EXCEL format

I had a client who wanted to get his report directly to PDF file. Previously, he used to use a Report Viewer component in application and then exporting it to the appropriate format.
In this example I render my report to the PDF file that will be located on disk C:\.
This report also accepts one parameter.The key of the module is ReportExecutionService class which contains some methods that we need to use.

Please refer to the BOL
ms-help://MS.SQLCC.v9/MS.SQLSVR.v9.en/rswsref9/html/d6ce295b-25f4-4ce3-8d1a-765d7e7d9815.htm


--VB.NET

Imports Microsoft.SqlServer.ReportingServices2005

Private Sub CreatePdfFile()
Dim Res As New Execution.ReportExecutionService
Dim params(0) As Execution.ParameterValue
Res.Credentials = System.Net.CredentialCache.DefaultCredentials
Res.Url = "http://servername/ReportServer/ReportExecution2005.asmx?wsdl"
params(0) = New Execution.ParameterValue
params(0).Name = "ParamName"
params(0).Value = Value

Dim ReportPath As String = "/Reports/ReportName"

Res.LoadReport(ReportPath, Nothing)
Dim Format As String = "PDF"
Dim devInfo As String = Nothing
Dim extension As String = Nothing
Dim mimeType As String = Nothing
Dim encoding As String = Nothing
Dim warnings() As Execution.Warning = Nothing
Dim stremIds() As String = Nothing
Dim result() As Byte = Nothing
Res.SetExecutionParameters(params, "en-us") --ParameterLanguage


result = Res.Render(Format, devInfo, extension, mimeType, encoding, warnings, stremIds)
IO.File.WriteAllBytes("C:\Report.pdf", result)
End Sub