RE: ReportViewer

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Hi Gerhard,

As for the Visual Studio ReportViewer control, it does support programmtic
exporting/saving the report content. Actually, it is done through the
LocalReport.Render method, this method can help you programmtically
generate the binary stream(byte array) of the report content. Here is a web
article mentioned this:

#How to render client report definition files (.rdlc) directly to the
Response stream without preview
http://weblogs.asp.net/rajbk/archive/2006/03/02/How-to-render-client-report-
definition-files-_28002E00_rdlc_2900_-directly-to-the-Response-stream-withou
t-preview.aspx

I've also written a simple example in VB.NET for your reference:

VB.NET sample
=========================

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs)
Handles Button1.Click

Dim reportType As String = "PDF"
Dim mimeType As String
Dim encoding As String
Dim fileNameExtension As String

'The DeviceInfo settings should be changed based on the reportType
'http://msdn2.microsoft.com/en-us/library/ms155397.aspx

Dim deviceInfo As String = "<DeviceInfo>
<OutputFormat>PDF</OutputFormat>
<PageWidth>8.5in</PageWidth><PageHeight>11in</PageHeight><MarginTop>0.5in</M
arginTop><MarginLeft>1in</MarginLeft><MarginRight>1in</MarginRight><MarginBo
ttom>0.5in</MarginBottom></DeviceInfo>"

Dim warnings As Warning()
Dim streams As String()
Dim renderedBytes As Byte()


'Render the report
renderedBytes = ReportViewer1.LocalReport.Render(reportType,
deviceInfo, mimeType, encoding, fileNameExtension, streams, warnings)

Dim fs As FileStream =
System.IO.File.Create("c:\temp\report_out.pdf")
fs.Write(renderedBytes, 0, renderedBytes.Length)

fs.Close()
====================================

Hope this helps.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead


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--------------------
From: =?Utf-8?B?R2VyaGFyZA==?= <Gerhard@xxxxxxxxxxxxxxxx>
Subject: ReportViewer
Date: Thu, 19 Jun 2008 15:39:03 -0700


I am using vb.net and asp.net version 3.5. I have a page with a
ReportViewer
where I want to be able to programatically save the report in Excel format
in
a specified directory on the web server. Can you please point me to
sample
code on how to do this?

Thanks.


.

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