Unplanned
Last Updated: 13 Feb 2024 12:22 by Amitesh
NSInternalInconsistencyException Reason: Invalid batch updates detected error is thrown in the ListView if you update the ItemsSource (clear it and add new items) simultaneously  ( from separate threads, by receiving messages through MessagingCenter)
Unplanned
Last Updated: 04 Mar 2021 09:50 by ADMIN
I need to change the icon displayed in the activity indicator, its width and height, and display some text.
Unplanned
Last Updated: 10 Sep 2020 09:03 by ADMIN

When RadListView is in grid mode (SpanCount > 0), there is no spatial navigation with the keyboard.

Up and down arrows move the focused item, left and right arrows don't. (Also: it doesn't seem to be possible to style the focused item…)

Crude drawing:

 

Only the first column has keyboard navigation, up and down. It's invisible, though; internally, an item is focused and will execute ItemTap when pressing the return key, or will select the item when pressing the spacebar. That part is fine.

 

After clicking/tapping an item in any column after the first one and then pressing the down arrow, for example, we get this:

Pink is where we clicked/tapped, cyan is what's internally focused after pressing the down arrow. 

Please note again that focus != selection. 

 

Expected behavior:

  • Implementation/exposure of FocusedItemStyle
  • Left and right keyboard arrows should move focus spatially inside the grid; if RadListView is in 1-column (list) mode, Left == Up, Right == Down

 

Further suggestions:

  • Implementation/exposure of HoverItemStyle, for when the mouse pointer is over an item cell
  • (changed) ScrollItemIntoView(object item, boolean focusItemAfterScroll, boolean selectItemAfterScroll)
  • (new) FocusItem(object item) 
  • (new) SelectItem(object item) 
Unplanned
Last Updated: 10 Sep 2020 08:30 by ADMIN
Implementation/exposure of FocusedItemStyle
Implementation/exposure of HoverItemStyle, for when the mouse pointer is over an item cell
Unplanned
Last Updated: 26 May 2020 09:05 by ADMIN
Currently if RadListView is grouped and reorder enabled, users can drag items to different groups - the drag and drop to different groups can be prevented only on ReorderEnded event. Provide a way to prevent the user from visually dragging the item past the bounds of the outer group.
Unplanned
Last Updated: 28 Apr 2020 11:10 by ADMIN
ADMIN
Created by: Pavel R. Pavlov
Comments: 1
Category: ListView
Type: Feature Request
3

Allow customers to enable the animations of the native control when items are being inserted, moved, deleted or the entire data reloaded.

native iOS ListView animations: https://docs.telerik.com/devtools/xamarin/nativecontrols/ios/listview/animations

native android ListView animations: https://docs.telerik.com/devtools/xamarin/nativecontrols/android/listview/listview-itemanimations

Unplanned
Last Updated: 22 Apr 2020 02:22 by Mauricio
Created by: Mauricio
Comments: 2
Category: ListView
Type: Feature Request
2
I have the need to hide the horizontal scroll bar in the lists
Unplanned
Last Updated: 15 Apr 2020 11:51 by ADMIN
Created by: Marginpoint
Comments: 0
Category: ListView
Type: Feature Request
2
The current behavior: When user swipes till the SwipeOffset, in our app it's restricted to 120, then a delete button will be visible at the extreme right of the cell with width=120. User can delete the item record from the ListView by clicking on this delete button. This is one way of item deletion.

We want to achieve another way to delete the item - when swiping beyond the offset 120, till the end of the cell, and it will automatically triggers the delete event.
Unplanned
Last Updated: 09 Apr 2020 08:37 by ADMIN
Created by: Joshua
Comments: 1
Category: ListView
Type: Feature Request
1

Does the RadListView control support snap scrolling? I could not find any documentation on this. 

  • Snap scrolling is when a user swipes to initiate a scroll, the end position of the scroll can be controlled so that items are fully displayed. This feature is known as snapping, because items snap to position when scrolling stops.
Unplanned
Last Updated: 12 Mar 2020 10:51 by ADMIN
Created by: Manoj
Comments: 0
Category: ListView
Type: Feature Request
0

The staggered layout lays out items in a staggered grid formation. the layout is available as follow:

Telerik Ui for Xamarin.iOS ListView

Telerik UI for Xamarin.Android ListView

Telerik UI for UWP ListView

Unplanned
Last Updated: 20 Feb 2020 09:25 by ADMIN
Provide a solution for Re-positioning of vertical scroll bar on IOS, or hide it at all.
Unplanned
Last Updated: 19 Dec 2019 14:31 by ADMIN

The BorderLocation property of ListViewItemStyle seems to either not be working correctly, or is severely limited in its capabilities.  Although the Location enum is not marked with [Flags], the values 0, 1, 2, 4, 8, 15 seem to imply bit flags that should be able to get OR'd together. However, when trying to use Location.Top | Location.Bottom, the result is NO border at all.

 

Example:

    public class BorderLocationExample : ContentPage
    {
        private readonly ListViewItemStyle BorderAll = new ListViewItemStyle
        {
            BorderColor = Color.Blue,
            BorderLocation = Location.All,
            BorderWidth = 8
        };

        private readonly ListViewItemStyle BorderTop = new ListViewItemStyle
        {
            BorderColor = Color.Blue,
            BorderLocation = Location.Top,
            BorderWidth = 8
        };

        private readonly ListViewItemStyle BorderTopAndBottom = new ListViewItemStyle
        {
            BorderColor = Color.Blue,
            BorderLocation = Location.Top | Location.Bottom, // <-- DOESN'T WORK !!!  These items have NO border at all.
            BorderWidth = 8
        };

        public BorderLocationExample()
        {
            BackgroundColor = Color.Gray;

            var items = new ObservableCollection<string>
            {
                "Item 1",
                "Item 2",
                "Item 3",
            };

            Content = new StackLayout
            {
                Orientation = StackOrientation.Vertical,
                Children =
                {
                    new RadListView
                    {
                        ItemsSource = items,
                        ItemStyle = BorderAll
                    },
                    new RadListView
                    {
                        ItemsSource = items,
                        ItemStyle = BorderTop
                    },
                    new RadListView
                    {
                        ItemsSource = items,
                        ItemStyle = BorderTopAndBottom
                    },
                }
            };
        }
    }

Unplanned
Last Updated: 05 Nov 2019 12:05 by ADMIN
ADMIN
Created by: Tsvyatko
Comments: 6
Category: ListView
Type: Feature Request
13
Add support for Jump list in grouped scenario to simplify navigating between items
Unplanned
Last Updated: 25 Oct 2019 11:02 by ADMIN
Unplanned
Last Updated: 21 Oct 2019 10:14 by ADMIN
I would like to animate the expand and collapse effect of the grouping on ListView control.
Unplanned
Last Updated: 27 Sep 2019 11:45 by ADMIN

Hello,

Right now, I use SyncFusion ListView because of several limitations of the RadListView :
- no way to make the ScrollItemIntoView animated. It results with a UI which doesn't look smooth or moden.
- no way to remove the highlight on item tap even if selectionMode is set to none. My users think there is a hidden action made

Am I missing something ? I would like to get rid of SyncFusion and only keep Telerik. But the ListView is by far the control I use the most and I can't really make regression on that part. Because I moved to SyncFusion due to user's feedback that don't like the highlight and that the scroll wasn't smooth and so the app looks like slow / not modern enough.

Do you think those features can be added in the roadmap ?
It would be nice to compete a bit more with the SyncFusion ListView which is very nice to use from a developper point of view. Althought the RadListView is great too. It's just that I'm waiting for improvment since a year.

 

PS : the documentation is lacking of scrolling / highlight part saying it's not possible or require a custom renderer and then, giving the first steps to create those renderers. I can't be the only one to struggle with this.

 

Thanks a lot

Unplanned
Last Updated: 01 Aug 2019 14:52 by ADMIN
Created by: Afi
Comments: 0
Category: ListView
Type: Feature Request
1
Expose GroupHeaderTemplate Selector property as ItemTemplateSelector property
Unplanned
Last Updated: 22 May 2019 12:39 by ADMIN
Created by: Georgi
Comments: 0
Category: ListView
Type: Feature Request
2
Provide a way to set header and footer that are always visible in the ListView and are excluded from the scrolling.
Unplanned
Last Updated: 17 Mar 2019 00:39 by ADMIN
ADMIN
Created by: Pavel R. Pavlov
Comments: 0
Category: ListView
Type: Feature Request
11
Currently the SelectedItems collection does not support two way binding. Expose API to support two way binding.
Unplanned
Last Updated: 08 Mar 2019 17:39 by ADMIN
ADMIN
Created by: Tsvyatko
Comments: 5
Category: ListView
Type: Feature Request
18
Add events to handle when listview cells are unloaded/recycled and prepared.
1 2 3