By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I want to render big non-graphical reports thousands of pages in the code level, omitting the ReportViewer control that just jams the browser, from the. When I test to render a report that is somewhat pages, the Microsoft. Render method takes approximately half an hour to finish, that is considered as bad user experience. Are there any tricks or alternative solutions to improve the performance of the rendering: in code, re-designing the.

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Home Categories. Need Help? Our Support Team is here to help. Ask Question. Net using C and VB. You can download it from here. Download Northwind Database. HTML Markup. You will need to import the following namespaces.

Imports System. Imports Microsoft. Net Example. Tables[0] ;. Clear ;. Add datasource ;. ConnectionStrings[ "constr" ]. Fill dsCustomers, "DataTable1" ;. If Not Me. IsPostBack Then. Tables 0. Add datasource. End If. End Sub. ConnectionStrings "constr". Dim cmd As New SqlCommand query. Using dsCustomers As New Customers. Fill dsCustomers, "DataTable1". Return dsCustomers. End Using. End Function. The Render method returns the exported document in Byte Array format.

Warning [] warnings;. Render rbFormat. Value, null , out contentType, out encoding, out extension, out streamIds, out warnings ;. SetCacheability HttpCacheability. NoCache ;. BinaryWrite bytes ;. Flush ;. End ;. Dim warnings As Warning. Dim streamIds As String.

Dim contentType As String. Dim encoding As String. Dim extension As String. Value, Nothing , contentType, encoding, extension, streamIds, warnings. BinaryWrite bytes. View Demo. Related Articles. Add Comments. Thank you for the feedback. The comment is now awaiting moderation.

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LocalReport.Render slow?

Processes the report and renders it in the specified format using a stream provided by a callback function. Namespace: Microsoft. WinForms Assembly: Microsoft. WinForms in microsoft.


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I am using the LocalReport class to generate pdf reports. I have observed that the Render method of the LocalReport class takes approximately 2 seconds for a simple pdf report of 1 or 2 pages. This time further increases if the report contains a simple line graph. Render "pdf", null , out extension, out encoding,. Create outputFileName.

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