Hi,

I'll prefix this by saying that, whilst I've been working with WPF for some time, I've only played with Silverlight....

>We are still using mostly VFP for business applications, but we are planning to move very soon to .NET with C#, WPF and Silverlight to create applications that will be working in a browser (web applications). There are some questions I still have, like:

>1) Would you consider Silverlight a valid tool to build UI for serious business applications? I see it mostly used in scenarious where you previouly would have seen a flash application (like multi media, galleries, music/video etc).

Same sort of image problem as WPF v. Winforms :-{ In practice Silverlight allows you to use a large chunk of the .NET framework on the client side which, in turn, means that it's possible to put a lot more logic on the browser than would be the case otherwise. And you can always mix Silverlight and ASP.NET content if neccessary.

>2) Moving from Deskop to web applications, how can we address security issues that will certainly come up with this technology? Previously we haven't put much thought about that, but having an application accessible from a web browser on some public IP will have some clients be worried about how to prevent unauthorized persons access their applications and their data.

I don't think Silverlight introduces any security issues over and above those that arise with any ASP.NET / IIS web application.

>3) And why is there no "Silverlight" category on UT?

I would think most questions could be placed in either the WPF or ASP.NET categories depending on the problem.
That said I can't recall a Silverlight specific question in either category so maybe no one is using it here ......
HTH

>Do you have any comments about this, I would be very thankful to hear your opinion about this.