You have any information about silverlight, whether this works in silverlight also or not??

Yes in Silverlight as well. I quickly build a new project in Dotnet framework 3.5 using Silverlight 5 with WCF RIA Services & when grid loaded it allowed me for Multicolumn Sorting.

so its a great new feature of Datagrid in WPF & Silverlight

Thanks Anand.. Its a nice feature...

And what about the users who will never know this? What use is it to them.

before this grid feature myself & I am sure almost everyone use to take grid data in Excel & do sorting but now because of this feature the same can be achieved on page level / form level only and with this you can sort your data for all columns displayed.

until Excel 2003 you can sort data for 3 column only (unless and until you build your own macro) & Excel 2007 onward there is no limit

For those who don't know this is the duty / responsibility of programmer / programmer analyst to make their user understand about new technologies their uses & features, and for those learning curvature we all are here to share and grow.

Regards,

Anand M. Boha

So what training video were you watching?

on Microsoft official websites there are lots of free online & offline (to download media files) videos available for Silverlight, WPF, ASP Dot net along with source codes to study.

e.g to name a few http://www.silverlight.net/learn http://windowsclient.net/learn/ http://www.asp.net/web-forms/videos

Silverlight is new cross-browser plug-in for richer web experiences to end-users,including video and animations.Silverlight is generating buzz not only inside the traditional Microsoft developer community, but also among designers and web developers who have long relied on other tools such as Macromedia Flash to get their jobs done you can see more detail on dapfor. com