How to convert string to System.Drawing.Printing.PrintDocument?

Question

Hi I have been working on C sharp for sometime now and I am stuck with a problem in my code. My requirement is when I choose to print a document, it has to open in a preview pane automatically. This program automatically generates PDF documents and this has to be opened in the preview pane. I have the path to this PDF file. Now when I try to Preview it using PrintPreviewDialog and when I give this path to the Document name, it says it cannot implicitly convert string to System.Drawing.Printing.PrintDocument.

How do I do this? I am in a fix. Any help would be highly appreciated. Thanks in advance.

Regards,

Swathi