This article explains the differences between the RadProgressBar and RadProgressArea controls from the Telerik® UI for ASP.NET AJAX suite.
Even though RadProgressBar and RadProgressArea appear to be similar (because you can use both of the controls for monitoring and visualizing the progress of a measurable operation) they have a number of differences that make each of the controls more suitable for particular scenarios.
RadProgressBar has simplified layout and it makes maximum use of CSS3 to decrease the size of the skins and the amount of data that the client browser should request. It contains only a bar element and a label, so you can start using it with a simple measurable process by making almost no changes in its configuration. Tracking a more complex process would require adding custom indicator elements. Also, the progress bar control has to be updated manually on the client or on the server because it does not automatically request data from the process, to which it is attached.
RadProgressArea is designed for file upload and for monitoring more complex processes that include a lot of data. As a result, it contains a lot of indicator elements for visualizing the file upload and you need to customize it a bit to track a simpler process. You can easily integrate it with RadAsyncUpload , a FileUpload control or an input of type file to visualize the file upload process. The progress area control can automatically track any measurable process on the server when you add a RadProgressManager on the page. It also supports manual updates that require sending information for all visible indicators.
|Lightweight Rendering||Yes (by design)||No|
|Updating Of Progress||Manual||Manual, Automatic With RadAsyncUpload, Automatic With RadProgressManager And Any Measurable Server Process|
|Progress Monitoring||Any Measurable Processes||Any Measurable Processes, Integration With RadAsyncUpload|
|Progress Indicators||Customizable Progress Label||Current Progress, Total Progress, Estimated Time And Speed, Files Count And Current File Name|
|Rich Client-Side API||Yes||Yes|
|Requires Registration Of HTTP Handler||No||Yes|