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RadControls for WinForms Vs. Prometheus and Silverlight

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Tom Jaspering
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Tom Jaspering asked on 22 Oct 2007, 07:01 PM
Hello,

We currently have a browser based application that extensively utilizes RadControls for ASP.NET. We have been considering providing a second front-end option to our customers that would use RadControls for WinForms to address some performance issues we see occasionally that appear related to slow browser rendering on older machines using older browsers (we have some very large forms and grids in a few places).

Am I correct in assuming that both Prometheus and Silverlight versions are strictly for browser based applications? And if so, is there any reason to suspect there might be significant performance improvements in either of those versions in regards to browser rendering?

Also, I was able to find Product Roadmap info for the browser based stuff, but could not find anything about the WinForms stuff. Can you please provide some insight as to the direction you are headed and what the plan is for WPF support in that regard?

Thanks,
Tom

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Vassil Petev
Telerik team
answered on 23 Oct 2007, 08:47 AM
Thank you for your question, Tom.

Yes, you are correct in your assumption that both Prometheus and Silverlight RadControls versions are strictly for browser based applications. The Prometheus suite is based on the ASP.NET AJAX technology, whereas the Silverlight suite is based on Microsoft Silverlight. I will also suggest reviewing What is 'Prometheus' for more information on RadControls Prometheus.

I am not sure that you will see "significant" performance improvements in either of those versions in regards to browser rendering. We fix all performance issues if we stumble on such, however we do not have any major performance problems in the Prometheus suite. Our controls use semantic rendering, making them the fastest on the market. We also utilize AJAX extensively which speeds up the browsing of our controls. Still, if you are showing large amounts of data on your pages, the speed will always be slower than in desktop applications, as rendering depends on the Internet connection, on the browser rendering, and on the power of the client machine. In this case we will advise some page/data reorganization through AJAX, paging, load on demand, virtual scrolling, etc.

As to Silverlight - version 1.0 was released not too long ago and is perfect for RIA application, media, etc. Silverlight 1.1, although in alpha stage, will allow for better performance, because there will be no need to use JavaScript. There are several comparisons of JavaScript and Silverlight on the web that you can check out: http://bubblemark.com/, http://metalinkltd.com/?p=93#results

You can find the WinForms Roadmap here. It needs to be updated with information on the Q3 release, which will happen by the end of the month. Still, you will not find WPF information on this page, as it is for our Windows Forms only. We are researching WPF technology still and we have no particular plans in this regard at this time. Are you considering using WPF for your next desktop application? Do you plan to make it run on WPF and Windows Forms?

I hope this helps. Let me know if you have other questions.


All the best,
Rob
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