GridView Sorting

Question

What is a best way to allow a user to resort a Gridview from a click event.

My initial sort is set as follows in XAML using the ItemsPath

 <CollectionViewSource
            x:Name="groupedItemsViewSource"
            Source="{Binding Groups}"
            IsSourceGrouped="true"
           ItemsPath="SortedTopItems" 

    public IOrderedEnumerable<PictureViewModel> SortedTopItems
        {
            get
            {
                return TopItems.OrderByDescending(p => p.StartDate).Take(3).OrderByDescending(p => p.StartDate);
            }
        }

Can I change the ItemPath if so how or maybe there is a better way? I was hoping 8.1 added new methods for sorting a GridView / ListView on higher level?

Thank you

Answer 1

Can someone help with this please?

Answer 2

First, let me say that posting over the weekend, then bumping the post before business hours will automatically result in a lower viewcount for your post.

Sorting the list should be as simple as reordering the underlying list, then rebinding the collectionvieesource to the list.

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Matt Small - Microsoft Escalation Engineer - Forum Moderator
If my reply answers your question, please mark this post as answered.

NOTE: If I ask for code, please provide something that I can drop directly into a project and run (including XAML), or an actual application project. I'm trying to help a lot of people, so I don't have time to figure out weird snippets with undefined objects and unknown namespaces.

Answer 3

Thanks Matt. I must remember also I am on New Zealand time so a bit out of sync work hours to others.