PDF Viewer control - Exception on form unload

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PDF Viewer control - Exception on form unload

Postby roger.thord.gray » Mon Jul 24, 2017 11:31 am


The PDFDocument does what I want, except that it throws on Form Unload.

The PDFDocument is embedded in a user control.

"An unhandled exception of type 'System.ComponentModel.Win32Exception' occurred in System.Windows.Forms.dll"

Module info: 4.7.2094.0 built by: NET47REL1LAST
Original Location: C:\WINDOWS\Microsoft.Net\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll

I am already done with the control at this point; but cannot shut down the form.

I have tried adding
if (pdfViewer.IsDocumentLoaded)

to the user controls 'Dispose'

The exception occurs even if the PDFDocument has not been used .. just drawn on the form.

Any suggestions, please.
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Joined: Sun May 28, 2017 1:41 am

Re: PDF Viewer control - Exception on form unload

Postby Betsy.jiang » Tue Jul 25, 2017 1:59 am

Dear roger.thord.gray,

Thanks for your inquiry.
After an intial testing with the latest Spire.PDFViewer Pack(Hotfix) Version:2.12.19, sorry that I didn't encounter the issue you mentioned. Please provide a sample project here or send it to us(support@e-iceblue.com) via email to help us reproduce the issue.

E-iceblue support team
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