CODEWITHSUNDEEP
wpflistviewproperties
B4DschK4Pp
B4DschK4Pp

Reputation: 193

How do I get the list that is bound to a ListView as ItemSource?

I have a WPF ListView which has a List<T> as ItemsSource. Now I want to query the list name which is bind to the ListView. How do I achieve that?

I need the name of the List<T>so I can reuse the function. Example:

    private void Sort(ListView lv)
    {
        lv.ItemsSource.Sort((x, y) => y.Name.CompareTo(x.Name)); // does not work
    }

Upvotes: 0

Views: 173

Answers (1)

Andy
Andy

Reputation: 12276

If you take a look at the code here:

https://www.wpf-tutorial.com/listview-control/listview-sorting/

You will notice you don't need the name of the list to sort it.

EDIT: And you can reference a column using just a generic string which seeems to be "Name" in your case.

The listview works with the default view of what's set or bound to it's itemssource. You can grab a reference to that and apply sort descriptors.

Code from the link:

    public ListViewSortingSample()
    {
        InitializeComponent();
        List<User> items = new List<User>();
        items.Add(new User() { Name = "John Doe", Age = 42 });
        items.Add(new User() { Name = "Jane Doe", Age = 39 });
        items.Add(new User() { Name = "Sammy Doe", Age = 13 });
        items.Add(new User() { Name = "Donna Doe", Age = 13 });
        lvUsers.ItemsSource = items;

        CollectionView view = (CollectionView)CollectionViewSource.GetDefaultView(lvUsers.ItemsSource);
        view.SortDescriptions.Add(new SortDescription("Age", ListSortDirection.Ascending));
    }

Substitute "Name" for age in that sortdescription and you'll have it sorting on the Name property.

Upvotes: 1

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