Events
RadUpload has been replaced by RadAsyncUpload, Telerik’s next-generation ASP.NET upload component. If you are considering Telerik’s Upload control for new development, check out the documentation of RadAsyncUpload or the control’s product page. If you are already using RadUpload in your projects, you may be interested in reading how easy the transition to RadAsyncUpload is and how you can benefit from it in this blog post. The official support for RadUpload has been discontinued in June 2013 (Q2’13), although it is still be available in the suite. We deeply believe that RadAsyncUpload can better serve your upload needs and we kindly ask you to transition to it to make sure you take advantage of its support and the new features we constantly add to it.
The RadUpload control exposes the following two server-side events:
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FileExists occurs when the RadUpload control is saving its files to a target folder and a file cannot be saved because the OverwriteExistingFiles property is False and the target folder already has a file with the same name.
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ValidatingFile occurs before the RadUpload control checks an uploaded file using its integrated file validation.