Silverlight 5 not printing on some printers

Question

I have a Silverlight 5 OOB application (with Elevated Permissions) that's just been deployed to a number of our users. Some of these users are reporting that prints are coming out blank or very faint. These printers do print Word documents correctly and I am unable to reproduce the problem on my own printers.

All users are on Windows XP SP3 32 bit, and I am developing on Win7 64 bit.

As anyone seen this issue before? Or any idea what could be causing this?

Help much appreciated.

Many Thanks, Andrew

Answer 1

I Should Got Solution May Be useFull To You.............................

First i created a new PrintDocument, and hooked up some handlers for its PrintPage event.

mobjPrintDocument = New PrintDocument
RemoveHandler mobjPrintDocument.PrintPage, AddressOf Print_Report
AddHandler mobjPrintDocument.PrintPage, AddressOf Print_Report

Then we can call the PrintBitmap function on the PrintDocument whenever you want to print. Here I am doing it when the user clicks the Print button.

Private Sub xbtnPrint_Click(sender As System.Object, e As System.Windows.RoutedEventArgs)
    mintPageIndex = 0
    mobjPrintDocument.PrintBitmap(FileName)
  End Sub

Now comes the important part. We can hijack the content targeted by hooking into the PrintPage event (as handled above). I can set the e.PageVisual to any visual xaml element and the PrintBitmap will handle it. Here I use the GetPages function and loop through to make sure I print each page (a pdfviewer element). However, you can point it to any visual element like I said.

Private Sub Print_Report(sender As System.Object, e As PrintPageEventArgs)
    e.PageVisual = xobjReportViewer.GetPages(mintPageIndex)
    mintPageIndex += 1
    e.HasMorePages = mintPageIndex < xobjReportViewer.GetPages.Count
  End Sub

The e.HasMorePages allows you to force the firing of this event until you are finished.

Hope this is helpful to someone. With Silverlight 5 and the Post-Script printer support, alot of printers that have a PostScript emulator may not be compatible, but will also not default to bitmap printing. This workaround fixes that, making printing a little bit more stable in a LOB type application.