Sys.WebForms.PageRequestManagerServerErrorException and Rad Editor

[ttaylor29]

I have a rad editor on my page. The user selects a code from the drop down list and then hits edits and it pulls all the values into the page from the database. After so many times of clicking edit and changing the values I receiving an error:

Microsoft JScript runtime error: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500

How can I fix this?
I've tried this so far in the page directive.

ValidateRequest="false" 

[Rumen]

Hi,

Does the problem happen without RadEditor? Do you load the content in RadEditor via its Content server property? Are you able to reproduce it in the following live demos:
Save in database
and
RadGrid Edit Template.

Kind regards,
Rumen
the Telerik team

[Jigar]

Hi Rumen,

We are using Telerik Rad-editor (Version: 2017.2.503.40) in our application. The Rad-editor control which we use looks like the sample you provided in "Save in database" link.

We are facing 1 issue while uploading image through Image Manager control. If we upload an image then we face 1 console error. Below is the description for the error.

ScriptResource.axd?d=WumqVucm-BTOpradDSIl6FwWq2Nf8yJ7sqq9-igzn7fhpcm7LMUuXAF__xzJt_PP7G8atwaBX_21lH9wtho_Q-JsnyL97IPmZiErbgIsKQvtmeYlHiL_GqtD3HsMVT9KS6u1-fBfjgRuY07t3m9OjNcjVdzCqYRpX7UHxymyD6WPAuy90&t=ffffffffad4b7194:5 Uncaught Error: Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 500

Can you please provide us the solution/your suggestions please?

Thanks in advance.

[Rumen]

Hi Jigar,

I want to learn more about your setup to be able to see what the picture is. Have you customized by any chance the Image Manager dialog, for example by:

• registering the external dialog files and modifying the FileBrowser.ascx one.
• or by implementing your own Custom File Browser Content Provider?

Can you please also confirm that the upload directory has read/write and delete rights and the files in it are not readonly as explained in this article: An error like "... because the application did not have enough permissions..." occurs only in a production environment. How to debug the issue?

Please also check whether you have set the Mandatory Additions to the web.config.

Best regards,
Rumen
Progress Telerik