Reorder or Drag not working on gridview

Question

    public class ChoiceSection
    {

        public String Name;
        public String Title
        {
            get
            {
                return Name;
            }
        }
        public Type pageType;
    }

    public class ChoiceSectionGroup
    {
        public ObservableCollection<ChoiceSection> _items = new ObservableCollection<ChoiceSection>();

        public ObservableCollection<ChoiceSection> Items
        {
            get
            {
                return _items;
            }
        }
        public String Name;
        public String Title
        {
            get
            {
                return Name;
            }
        }

        public void Add(ChoiceSection section){
            _items.Add(section);
        }
    }

    /// <summary>
    /// A page that displays a grouped collection of items.
    /// </summary>
    public sealed partial class SectionSelectionPage : Testx.Common.LayoutAwarePage
    {
        public SectionSelectionPage()
        {
            this.InitializeComponent();
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {

            ObservableCollection<ChoiceSectionGroup> sectionsGroups = new ObservableCollection<ChoiceSectionGroup>();
            
            ChoiceSectionGroup sectionGroup = new ChoiceSectionGroup();            
            
            ChoiceSection section;

            section = new ChoiceSection();
            section.Name = "Test 0";
            sectionGroup.Add(section);

            section = new ChoiceSection();
            section.Name = "Test 1";
            sectionGroup.Add(section);

            section = new ChoiceSection();
            section.Name = "Test 2";
            sectionGroup.Add(section);

            section = new ChoiceSection();
            section.Name = "Test 3";
            sectionGroup.Add(section);

            section = new ChoiceSection();
            section.Name = "Custom Stations";
            sectionGroup.Add(section);

            sectionsGroups.Add(sectionGroup);


            groupedItemsViewSource.Source = sectionsGroups;

            //this.DefaultViewModel["Groups"] = sectionsGroups;

            this.DefaultViewModel["Groups"] = groupedItemsViewSource.View;
        }

With xaml: 

        <CollectionViewSource
            x:Name="groupedItemsViewSource"
            
            IsSourceGrouped="true"
            ItemsPath="Items"/>

Previously, i was also binding "Groups" in the xaml and tried this one too.. it doesn't work: no reordering, no drop..

Gridview xaml:

            <GridView
                x:Name="itemGridView"
                AutomationProperties.AutomationId="ItemGridView"
                AutomationProperties.Name="Grouped Items"
                Margin="116,0,40,46"
                ItemsSource="{Binding Source={StaticResource groupedItemsViewSource}}"
                ItemTemplate="{StaticResource Standard250x250ItemTemplate}" CanDragItems="True" CanReorderItems="True" AllowDrop="True">

Answer 1

Hi ELRaymod,

As far as I know reorder/dragdrop is not supported for grouped items.

http://social.msdn.microsoft.com/Forums/en-US/winappswithcsharp/thread/26b5f05b-518d-4e17-b8ce-4368fb04bc34

http://social.msdn.microsoft.com/Forums/en-US/winappswithcsharp/thread/07970ab8-3d24-4d5a-870d-be2b3f62665d

Best regards,

---

Min Zhu [MSFT]
MSDN Community Support | Feedback to us