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Microsoft JScript runtime error: 'Sys.WebForms.PageRequestManager' is null or not an object

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FileExplorer
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James
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James asked on 18 Feb 2011, 08:23 PM
Hello,

I'm trying to get File Explorer hooked up to a SQL Server 2008 database, and I can't get past this error.  It displays the folders, and I can see it hitting the database and returning records, but when the page loads it throws this error:

Microsoft JScript runtime error: 'Sys.WebForms.PageRequestManager' is null or not an object

Does anyone have a solution for this error?  Also, the files are being saved as binary streams, so if anyone has any code on how to convert these back into files using File Explorer, I'd be in much gratitude.

Thanks,

Scott

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Dobromir
Telerik team
answered on 23 Feb 2011, 12:44 PM
Hi James,

I already answered your support ticket on the subject. For convenience I will paste my answer here as well.

The most possible reason for this error to be displayed is a server error that occurs during an AJAX call. In order to attach the RadFileExplorer to a database you need to implement custom filebrowser content provider. An example of such content provider is available in the following code library:
Connect RadFileExplorer or RadEditor to a SQL databse

If you have implemented your custom provider we will need to examine it and debug it locally to provide more-to-the-point-answer. Could you please provide a sample runnable project reproducing the problem?


Kind regards,
Dobromir
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