Completed
Last Updated: 17 Sep 2024 09:03 by ADMIN
Exception in a very custom scenario and GroupHeaderTemplate usage. 
filtering the ListView by using additional buttons, and bindable filter descriptors
Completed
Last Updated: 17 Sep 2024 08:33 by ADMIN

When having a nested grid layouts with auto and definitive row heights, the content in the ListView ItemTemplate is not property sized only on iOS. On Android, MacCatalyst and WinUI the content is property sized. 

Solution:

1. Using only auto-sized grid rows, 

2. Using grouping and simplifying the layout, removing nested grid layouts, and using a vertical stack. 

Completed
Last Updated: 17 Sep 2024 08:12 by ADMIN

When setting margin to the elements in the template, the margin is not respected

 

Completed
Last Updated: 17 Sep 2024 08:06 by ADMIN
The iOS app loads a long time when the "IsItemsReorderEnabled" property is set to true and the screen orientation is changed while staying on the page.
Completed
Last Updated: 17 Sep 2024 08:00 by ADMIN

Since migrating to MAUI .NET8 GA 8.0.3 (and Telerik 6.5) - on iOS the RadListView keeps repeatedly triggering the defined LoadOnDemand command to get more items even though list has not been scrolled by user. 

the behavior is valid for the command, event and collection and when automatic load on demand mode is used. 

 

When using manual mode, it works as expected.

Completed
Last Updated: 16 Sep 2024 15:38 by ADMIN

Having ContentViews for left and right item swipe

  • Remove an Item from the List View Collection using right swipe content (The Item Source is then re-initialized as a new Observable Collection)
  • Attempt to perform a Swipe Gesture on any list view item.

The ListView crashes

Completed
Last Updated: 12 Sep 2024 14:30 by ADMIN

The bug can be reproduced quite easily with the SDK examples. Choose any ListView example from the LoadOnDemand category that uses LoadOnDemandMode set to Automatic, e.g. ListView/LoadOnDemand/LoadOnDemandEvent. Remove the initial items from the ItemsSource:

public ViewModel()
{
    this.Source = new ObservableCollection<string>();
    //for (int i = 0; i < 14; i++)
    //{
    //    this.Source.Add(string.Format("Item {0}", i));
    //}
    this.LoadItemsCommand = new Command(this.LoadItemsCommandExecute);
}

Run the example to observe the exception almost immediately.

Duplicated
Last Updated: 12 Sep 2024 13:53 by ADMIN
Pull to refresh stops working when opening a popup from an item in the ListView
Completed
Last Updated: 12 Sep 2024 12:05 by Nico
Created by: Nico
Comments: 5
Category: ListView
Type: Bug Report
0

It took me about 2 days, but finally i've reached out a repo out of the real world app, where the iOS RadListView crashes the app.

Start this repo app on a iPhone 15 Simulator:
https://github.com/baaaaif/TelerikListViewCrash

The ListView crashes the app when the cell is quite high and the height of the list and the height of the cell reach a certain (unknown) ratio

This is in the logs right before the crash :
Native Crash Reporting

TelerikListViewCrash : -[TKListViewLayoutChange applyToAll:]
	0x1023126e0 - /Users/nicokuenzler/Library/Developer/CoreSimulator/Devices/47FE3DF0-D39D-427A-9E82-0FCD7B14D208/data/Containers/Bundle/Application/88F8A1C5-46EB-4C80-A80D-A2699030842A/TelerikListViewCrash.app/TelerikListViewCrash : -[TKListViewLayoutChangeManager optimize]
	0x10237e174 - /Users/nicokuenzler/Library/Developer/CoreSimulator/Devices/47FE3DF0-D39D-427A-9E82-0FCD7B14D208/data/Containers/Bundle/Application/88F8A1C5-46EB-4C80-A80D-A2699030842A/TelerikListViewCrash.app/TelerikListViewCrash : -[TKListViewLinearLayout layoutAttributesForElementsInRect:]
	0x184a7f6c4 - /Library/Developer/CoreSimulator/Volumes/iOS_21C62/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 17.2.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : -[UICollectionViewData _layoutAttributesForElementsInRectForMapping:]
	0x185347778 - /Library/Developer/CoreSimulator/Volumes/iOS_21C62/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 17.2.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : -[_UICollectionViewDataAttributesMap _validateLayoutInRect:]
	0x184a81770 - /Library/Developer/CoreSimulator/Volumes/iOS_21C62/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 17.2.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : -[UICollectionViewData validateLayoutInRect:]
	0x184a824d4 - /Library/Developer/CoreSimulator/Volumes/iOS_21C62/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 17.2.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : -[UICollectionViewData layoutAttributesForElementsInRect:]
	0x184a444b4 - /Library/Developer/CoreSimulator/Volumes/iOS_21C62/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 17.2.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : -[UICollectionView _updateVisibleCellsNow:]
	0x184a451c8 - /Library/Developer/CoreSimulator/Volumes/iOS_21C62/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 17.2.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : -[UICollectionView _updateVisibleCellsNow:]
	0x184a49ec4 - /Library/Developer/CoreSimulator/Volumes/iOS_21C62/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS 17.2.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore : -[UICollectionView layoutSubviews]
	0x10240bce4 - /Users/nicokuenzler/Library/Developer/CoreSimulator/Devices/47FE3DF0-D39D-427A-9E82-0FCD7B14D208/data/Containers/Bundle/Application/88F8A1C5-46EB-4C80-A80D-A2699030842A/TelerikListViewCrash.app/TelerikListViewCrash : -[TKCollectionView layoutSubviews]

Completed
Last Updated: 12 Sep 2024 11:47 by ADMIN
In the RadListView, after adding a ListViewPropertySortDescriptor, if the property of the ItemsSource object which is used by ListViewPropertySortDescriptor.PropertyName changes , the ListView would be reordered automatically on WinUI, iOS and MacCatalyst. However, this does not seem to be the case on Android.
In addition, on iOS and MacCatalyst the sorting does not apply as expected. The sort order is wrong. 

Workaround: Use the direct properties from the model and add/clear the descriptors when property you sort changes.
Completed
Last Updated: 12 Sep 2024 09:49 by ADMIN
When users trigger a swipe gesture of a ListView item and there is a change from code at that time, the UI is not updated immediately, but when the item is swiped back.
Completed
Last Updated: 12 Sep 2024 09:20 by ADMIN
If there is a Picker control inside the ListView ItemTemplate and its SelectedIndex is bound to a property of the used data item, the user cannot select a value  - SelectedIndex is reset to -1.
Completed
Last Updated: 10 Sep 2024 10:01 by ADMIN

When the VerticalItemSpacing is greater than 1 and an ItemStyle with a Border is defined the background of the item is overlapping the border.

 

             <telerik:RadListView Grid.Column="0" ItemsSource="{Binding Source}">

                <telerik:RadListView.LayoutDefinition>

                    <telerik:ListViewLinearLayout Orientation="Vertical" VerticalItemSpacing="4" />

                </telerik:RadListView.LayoutDefinition>

                <telerik:RadListView.ItemStyle>

                    <telerik:ListViewItemStyle

                        BackgroundColor="Green"

                        BorderColor="LightGreen"

                        BorderLocation="All"

                        BorderWidth="1" />

                </telerik:RadListView.ItemStyle>

                <telerik:RadListView.SelectedItemStyle>

                    <telerik:ListViewItemStyle

                        BackgroundColor="Orange"

                        BorderColor="OrangeRed"

                        BorderLocation="All"

                        BorderWidth="1" />

                </telerik:RadListView.SelectedItemStyle>

                <telerik:RadListView.PressedItemStyle>

                    <telerik:ListViewItemStyle

                        BackgroundColor="Orange"

                        BorderColor="OrangeRed"

                        BorderLocation="All"

                        BorderWidth="1" />

                </telerik:RadListView.PressedItemStyle>

 

                <telerik:RadListView.ItemTemplate>

                    <DataTemplate x:DataType="local:SourceItem">

                        <telerik:ListViewTemplateCell>

                            <telerik:ListViewTemplateCell.View>

                                <Grid>

                                    <Label Margin="10" Text="{Binding Name}" />

                                </Grid>

                            </telerik:ListViewTemplateCell.View>

                        </telerik:ListViewTemplateCell>

                    </DataTemplate>

                </telerik:RadListView.ItemTemplate>

            </telerik:RadListView>

 


Completed
Last Updated: 10 Sep 2024 09:47 by ADMIN

I have a collection of items, and one of the properties notifies changes to the UI. ("BooleanProperty") I also bind to the SelectedItem property on the list view to toggle this bool property to true or false.

I have another property "Description" that I am sorting by. When sorting the ListView and select an item, the items with the same value are reordered. 


Completed
Last Updated: 10 Sep 2024 09:27 by ADMIN
When I have an entry in the cell and start typing in the middle of text, Cursor will go to the end of text automatically after typing in a character. 
Completed
Last Updated: 10 Sep 2024 09:22 by ADMIN

Android: when tapping on load on demand template the data is not loaded. 

If you use the LoadOnDemandCommand you can bind the command to the button inside the template.

 

On WinUI there is an exception runtime

 

Workaround:

Use automatic load on demand mode or bind the command to the template

Completed
Last Updated: 10 Sep 2024 09:17 by ADMIN
I have a ListView and when the list contains few elements leaving empty space in the page, if the user taps on the empty space, all ListView items become highlighted.
Completed
Last Updated: 10 Sep 2024 09:13 by ADMIN

if you start to reorder an item, and then drop it in the same position that it already had (i.e. abort/cancel the reorder) , the gray color is now stuck. The issue happens only on Android.

Completed
Last Updated: 10 Sep 2024 09:09 by ADMIN
Swiping the cell overlaps the next cell when itemspacing is set. 

Completed
Last Updated: 09 Sep 2024 13:44 by ADMIN
When reordering items in the ListView sometimes the user might want the item to go to the end of a long list. It is not possible, because the ListView does not scroll while dragging the item.
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