PrintDocument in ASP.NET application

[Pierrers]

Hello,

I'm trying to print a document from the code behind in ASP.NET application. It is working fine in winForms.

First attempt:

Code: Select all

   Document doc = new Document();
            doc.LoadFromFile("C:\\Temp\\word.docx");
            PrintDocument printDoc = doc.PrintDocument;
            printDoc.Print();

doc.PrintDocument = 'doc.PrintDocument' threw an exception of type 'System.NullReferenceException'

Then I added a WinForm dialog call from your sample (what is weird in asp.net app):

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         PrintDialog dialog = new PrintDialog();
                dialog.AllowPrintToFile = true;
                dialog.AllowCurrentPage = true;
                dialog.AllowSomePages = true;
                dialog.UseEXDialog = true;
                document.PrintDialog = dialog;
                PrintDocument printDoc = document.PrintDocument;
                printDoc.Print();

And now the exception is on the last line printDoc.Print() - "No printers are installed."

Printers are installed, and the same code works in console or winforms application.

Any ideas?

Thank you.

[Gary.zhang]

Hello,

Thanks for your inquiry.
Where is your printer installed? Where did you test the print method in ASP.net application? publish to IIS or local?
Could you please refer to the following method to select Microsoft XPS Document Writer as default printer and try it again.

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Document doc = new Document();
string filename = Server.MapPath("Word.doc");
doc.LoadFromFile(filename);
PrintDialog dialog = new PrintDialog();
dialog.AllowPrintToFile = true;
dialog.AllowCurrentPage = true;
dialog.AllowSomePages = true;
dialog.UseEXDialog = true;
doc.PrintDialog = dialog;
PrintDocument printDoc = doc.PrintDocument;
if(dialog.ShowDialog()==DialogResult.OK)
            {
                printDoc.Print();
            }


Thanks,
Gary
E-iceblue support team

[Pierrers]

Thank you for your answer.

The code that you posted is exactly the same that I use already.

Printers is installed on both server and client computers and, as I already mentionned, the same code works for a WinForm application.

My application is actually a Sharepoint 2010 webpart, and I run it in a virtual machine environnement.

[Pierrers]

I made another test, this time creating a new web application. Event it is weird to use WinForms dlls in an asp.net application, the printing works. But it still does not work in Sharepoint context.

[Gary.zhang]

Hello,

Thanks for your feedback.
We will investigate the issue, and get it back to you ASAP. Sorry for inconvenience.

Thanks And Regards,
Gary
E-iceblue support team

[Gary.zhang]

Hello,

Thanks for your waiting.
We have done some investigation, you could try specifying name of network printer using IP addresse, please refer to the following code and try it, also, make sure that the sharepoint has rights to visit the printer.

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printDoc.PrinterSettings.PrinterName = @"\\192.168.1.108\HP LaserJet P1007";


If there are any questions, welcome to get it back to us.

Sincerely,
Gary
E-iceblue support team

[Pierrers]

Thank you, we will finally use a PDF.