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Validation on filename

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AsyncUpload
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Paul
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Paul asked on 22 Sep 2015, 03:27 PM
Is there a way for me to validate the filename for any special characters and cancel the upload if it contains any special characters?

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Ivan Danchev
Telerik team
answered on 24 Sep 2015, 11:13 AM
Hello,

You can subscribe to the AsyncUpload's OnClientFileUploading client-side event, in its handler check the filename for presence of special characters and cancel the the event in case such are found:
function OnClientFileUploading(sender, args) {
    var filename = args.get_fileName();
    var dotIndex = filename.lastIndexOf(".");
    var name = filename.substring(0 , dotIndex)
 
    if (/^[a-zA-Z0-9- ]*$/.test(name) == false) {
        alert('The filename contains special characters. The upload will be cancelled.');
        args.set_cancel(true);
    }
}


Regards,
Ivan Danchev
Telerik
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Ivan Danchev
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