Sort and filer a binded collection in a ListBox

Question

Hello,
in my application, I have a listbox which is binded to a collection of objects. Collection element is of Student type and each student is having a 'Name' property which is displayed in the ListBox item.
Now I want to add a filter and sort functionality in the UI.. How I can do this using only xaml code and no backend .cs file code.
I want to add one button for sorting items in the UI this button should toggle the view from normal to sorted in the UI. Also the filter button display the elements in the UI
thanks,
IamHuM

Answer 1

"How I can do this using only xaml code and no backend .cs file code."
I think you will need some code.
If you look at this:
<CollectionViewSource Source="{StaticResource places}" x:Key="cvs">
<CollectionViewSource.SortDescriptions>
<scm:SortDescription PropertyName="CityName"/>
</CollectionViewSource.SortDescriptions>
<CollectionViewSource.GroupDescriptions>
<dat:PropertyGroupDescription PropertyName="State"/>
</CollectionViewSource.GroupDescriptions>
</CollectionViewSource>
You  would need a trigger to change a sortdescription. I can't think of a way to do that.
Similarly the filter of a collectionviewsource.
You need some predicate from somewhere. 
If you were happy with using code then that'd be fine.
http://social.technet.microsoft.com/wiki/contents/articles/26673.wpf-collectionview-tips.aspx
Hope that helps.
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