web scan - Device manager error

Questions, comments and suggestions concerning VintaSoft Twain .NET SDK.

Moderator: Alex

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JorgeRaul
Posts: 1
Joined: Wed Aug 21, 2013 6:53 pm

web scan - Device manager error

Post by JorgeRaul » Wed Aug 21, 2013 7:07 pm

Hi ,
I am evaluating the tool, try to run the application:
"C: \ Program Files \ VintaSoft \ VintaSoftTwain.NET v8.3 \ Examples \ VS.NET.2010 \ ASP.NET \ CSharp \ WebTwainDemo"
when trying to acquire an image always get the message "Web application is not configured Correctly." I have Windows 7 32 bit with VS 2010, I ran the configuration steps.
. Put the site in "trusted zone" of IExplorer 10
. execute the caspol.exe as does the help page.
dont know what else to do, can you help me?
thanks in advance.
(sorry for my weak English)

Alex
Site Admin
Posts: 1443
Joined: Thu Jul 10, 2008 2:21 pm

Re: web scan - Device manager error

Post by Alex » Thu Aug 22, 2013 10:48 am

Hello Jorge,

Please read this article:
http://www.vintasoft.com/docs/vstwain-d ... ebApp.html

and let me know if you will have any question or problem.

Best regards, Alexander

mvinolo
Posts: 2
Joined: Fri Jan 24, 2014 2:52 am

Re: web scan - Device manager error

Post by mvinolo » Fri Jan 24, 2014 3:14 am

Hi Alex, I am in the same situation of this post.
I am evaluating the sdk and trying to run the VS STUDIO 2012 C# demo.

I read the article http://www.vintasoft.com/docs/vstwain-d ... ebApp.html and have some questions.

I am running win 7 64 bits.
I ran both caspol scripts, added localhost to trusted zone, and enable hosting of winforms.

When I run it from visual studio, I have the following error:
"Unhandled exception at line 775, column 9 in http://localhost:50532/
0x800a138f - JavaScript runtime error: Unable to get property 'options' of undefined or null reference"

the line:
objSel.options.length = objSel.options.length + 1;

Any idea?
Thanks
Marcelo

Alex
Site Admin
Posts: 1443
Joined: Thu Jul 10, 2008 2:21 pm

Re: web scan - Device manager error

Post by Alex » Fri Jan 24, 2014 8:43 am

Hello Marcelo,
When I run it from visual studio, I have the following error:
"Unhandled exception at line 775, column 9 in http://localhost:50532/
0x800a138f - JavaScript runtime error: Unable to get property 'options' of undefined or null reference"

the line:
objSel.options.length = objSel.options.length + 1;
This error means that your browser does not support "options" property in the select (HTML ComboBox) object in JavaScript. What browser do you use?

Please browse the internet and try find how to add values to the select object in your browser.

Best regards, Alexander

mvinolo
Posts: 2
Joined: Fri Jan 24, 2014 2:52 am

Re: web scan - Device manager error

Post by mvinolo » Sat Jan 25, 2014 10:58 pm

Alex, thanks for your help.
The problem had a really simple resolution, objSel was null cause a case sensitive problem in combobox name.
Same problem with checkbox UseADF.
I'm using ie11.

Thanks again.

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