The example mentioned in the TV webinar you referred to is outdated. It was part of the demos of the RadUpload for ASP.NET AJAX. However, due to the limitations that this approach had, the ASP.NET AJAX team developed the new RadAsyncUpload
control which allows you to perform single and multi-file uploads through async requests instead of plain postback (the latter is supported by the RadUpload
for ASP.NET AJAX control). It can be used in combination with RadProgressManager
to monitor the progress while the upload process commences and permits automatic and custom validation. You can check its demo here
. And you can also find more info here
Give the new control a try and let us know if it works for you.
All the best,
the Telerik team
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