Printing a page without displaying it?

问题

I have a page from which the user will be able to print. However, the page which will get printed is not the one the user is viewing, but rather a new one I'd like to generate on the background and (possibly) only show the print dialog for it.

Just to make things clear:

User is on "View.aspx" and clicks my Print button (not the browser's one).
The Print button loads the content of "Printable.aspx" and displays a print dialog for it while the user is still on "View.aspx".

FYI, what I'm trying to avoid is to have the "Printable.aspx" open in a new window and then show its print dialog.

Thanks in advance.

回答1:

Use a combination of MEDIA tags in CSS to show/hide objects for printing.

<STYLE type="text/css">
@media print {
   .PrintOnly {font-size: 10pt; line-height: 120%; background: white;}
}
@media screen {
   .PrintOnly {display: none}
}
</STYLE>

You can make controls that are style Display:none on media screen, so the user only sees them when printing.

<DIV class="PrintOnly">
This control will only show up during printing
</DIV>

Any of your controls can be classed as "PrintOnly" so you only see them when printing. You just need to have the css class defined once for "@media screen" and once for "@media print" to ensure they behave differently.

You can also bring in an entire stylesheet for print-only.

<LINK rel="stylesheet" type"text/css" href="screen.css" media="screen">
<LINK rel="stylesheet" type"text/css" href="print.css" media="print">

回答2:

When the Print button is clicked, add the Printable.aspx into a hidden panel of view.aspx. Respond by adding javascript into the onload event of view.aspx & print the hidden panel with window.print()

回答3:

I don't think what you are trying for is possible. But I could be wrong. Though the better way to approach this is to use a different css stylesheet.

回答4:

You could load the page into a hidden IFrame element, then use javascript to execute the print function of that page.

But, like @carter suggested, CSS is the better approach. Why load duplicate content more than once when you can just restyle the current content?

It's also suggested in this question to use CSS: how to print the contents of a hidden iframe?
This is a good resource for using the CSS way of printing: http://www.alistapart.com/articles/goingtoprint/

来源：https://stackoverflow.com/questions/3345688/printing-a-page-without-displaying-it

标签

ASP.NET

html

printing