RadAsyncUpload vs RadUpload
This help article describes the differences between RadAsyncUpload and RadUpload controls.
| RadAsyncUpload | RadUpload for ASP.NET AJAX |
|---|---|
| Uploads the file(s) automatically and asynchronously to a temporary folder.The files will be copied to the TargetFolder on postback. | Uploads the files during postback. |
| Can be updated with UpdatePanel / RadAjaxPanel / RadAjaxManager | Cannot be updated with UpdatePanel / RadAjaxPanel / RadAjaxManager . Files cannot be uploaded during AJAX updates. |
| Requires registration of an HTTP handler - Telerik.Web.UI.WebResource.axd The same handler is registered by RadScriptManager / RadStyleSheetManager | Does not require handler registration to upload files. |
| Progress monitoring is done in real time when the Flash module is in use. Otherwise progress polling is used (through RadProgressManager ). | Progress monitoring through RadProgressManager only. |
| Integrated visual clue of the current operations - uploading, upload successfully completed, upload failed. | Current operation can be monitored only through RadProgressArea |
| Client side events for upload completed and upload failed | No client events for upload completed or failed |
| Extension and size validation are done on the client | You need a page postback to validate the file |
| Requires anonymous access to the Telerik.Web.UI.WebResource.axd handler | Can upload files with disabled anonymous access |
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SERVER SIDE: :New Event: FileUploaded Removed Events: Validating, FileExists New Properties: TemporaryFolder, TemporaryFileExpiration Removed Properties: InvalidFiles, TargetPhysicalFolder, ReadOnlyInputs |
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CLIENT SIDE: New Events: OnClientFileUploading, OnClientFileUploaded, OnClientFileUploadFailed, OnClientValidationFailed, OnClientUploadProgress, OnClientFileUploadRemoved, OnClientFileUploadRemoving Removed Event: OnClientClearing, OnClientDeleting |