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Getting NullReferenceException when assigning values to form https://forum.pdfsharp.net/viewtopic.php?f=2&t=4228 |
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Author: | KenBobPDX [ Mon Feb 01, 2021 11:15 pm ] |
Post subject: | Getting NullReferenceException when assigning values to form |
I'm getting a system.NullReferenceException when I'm assigning a text value to a PDF form that I created in Acrobat Pro DC. The stack trace indicates it's happening deep in the PdfSharp.Pdf.AcroForms.PdfTextField.RenderAppearance() code. Here's the stack trace: at PdfSharp.Pdf.AcroForms.PdfTextField.RenderAppearance() at PdfSharp.Pdf.AcroForms.PdfTextField.set_Text(String value) at <my code that assigns the text value> This line is causing the exception: ((PdfTextField)field).Text = origValue; I'm new to PdfSharp, so I'm guessing I must have missed something basic. Can anyone lend some insight? What do I need to do to stop throwing this exception? Oh, by the way, I get the same error when I run the sample code for filling out form fields. If I wrap the assignments in a try/catch block and ignore the exceptions, the form is filled out correctly. I can open it in Adobe Acrobat and see all the data so it seems like a bug in PdfSharp. Thanks in advance, Ken |
Author: | rosin [ Fri Aug 26, 2022 12:34 pm ] |
Post subject: | Re: Getting NullReferenceException when assigning values to |
I also have the same problem.Has anyone been able to solve this problem? Thanks everyone for the help . |
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