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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