Error: Error while uploading, The process cannot access the file 'XX' because it is being used by another process.

[john]

If I open a word document and upload the document by RadAsyncUpload, it will throw the javascript error " Error while uploading, The process cannot access the file 'XXX' because it is being used by another process" if enable show js error. My question is there are a way to show a friendly message to user in that case?

[john]

Any solution?

[Plamen]

Hello John,

 
You can try to achieve it in the client event OnClientFileUploadFailed of RadAsyncUpload by suppressing the original message and alerting a new one according to your scenario.

Greetings,
Plamen
the Telerik team