I've upgrade from 2019 R1 to R3 but my app is restricted to the R1 version.

Can you let me have the docs to upgrade?

Regards,

Graham

Hello,

I would like to filter a TreeView, but I can't find any solution for Xamarin.Forms. Is it possible or not ?

Thank you :)

Good night friends,

How can I detect the cancel event?

When the confirm button is pressed,

I'm using the event:

_listPickerProduto.SelectionChanged + = listPickerProduto_SelectionChanged;

In the case of the cancel button I didn't find how to do it.

Thank you for your help

I'm using a RadListView and would like to know how to implement both a swipe action and a click action on the same item.

I've done quite a bit of research and trial and error and have not yet found a solution.

Thanks!

Hi there!
Maybe sbdy can help. When I use the themes by adding these lines to App.xaml
"<ResourceDictionary.MergedDictionaries>
                <ResourceDictionary MergedWith="telerikCommon:BlueResources"/>
                <ResourceDictionary MergedWith="telerikInput:TelerikThemeStyles"/>
                <ResourceDictionary MergedWith="primitives:TelerikThemeStyles"/>
                <ResourceDictionary MergedWith="chart:TelerikThemeStyles"/>
                <ResourceDictionary MergedWith="telerikDataControls:TelerikThemeStyles" />
                <ResourceDictionary MergedWith="dataGrid:TelerikThemeStyles"/>
            </ResourceDictionary.MergedDictionaries>

"
The android application silently crashes on startup. It is not working at all. But it only has this problem when installed using APK file. If running on the phone from visual studio in debug mode ist works.
I am using Android 8.0
Telerik UI for Xamarin is in Trial Mode (with Dialog at Startup)

I'm trying to set up the sample android application from https://github.com/telerik/Android-samples

I cloned the Git repo and am obviously missing the Telerik libraries needed for the application.

When I try to install the Telerik libraries using Nuget Package Manager, I get the following error:

"Severity    Code    Description    Project    File    Line    Suppression State
Error        Could not install package 'Xamarin.Android.Support.Animated.Vector.Drawable 25.1.0'. You are trying to install this package into a project that targets 'MonoAndroid,Version=v6.0', but the package does not contain any assembly references or content files that are compatible with that framework. For more information, contact the package author."

It seems that the project is broken, or doesn't work with VS 2019, because I am definitely not targeting v6.0 and the error doesn't change when I change target versions (both manifest and build versions).

I tried opening the project in VS 2017, but received a message that the project is incompatible and should be opened in VS 2015 or earlier.

The sample app hasn't been updated on GitHub for at least 2 years.

Is there any plans to update these samples to work on current dev environments?

On iOS, when the collection items change, the changes are not being rendered properly.

I am using sort and group delegate descriptors and the items determine the order and group they are placed in. However, when updating the items, the changes are not visually applied or the rendered items end up in an invalid state. There are logs emitted, like the one below.

[UICollectionView] Invalid update: invalid number of items in section 0.  The number of items contained in an existing section after the update (3) must be equal to the number of items contained in that section before the update (3), plus or minus the number of items inserted or deleted from that section (1 inserted, 0 deleted) and plus or minus the number of items moved into or out of that section (0 moved in, 0 moved out). - will perform reloadData. UICollectionView instance: <TKCollectionView: 0x7faf86b41c00; baseClass = UICollectionView; frame = (0 0; 414 774); clipsToBounds = YES; autoresize = W+H; gestureRecognizers = <NSArray: 0x600001f4e610>; layer = <CALayer: 0x6000058ae760>; contentOffset: {0, 0}; contentSize: {414, 334}; adjustedContentInset: {0, 0, 0, 0}; layout: <TKListViewLinearLayout: 0x7faf83090250>; dataSource: <Telerik_XamarinForms_DataControlsRenderer_iOS_TKExtendedListView: 0x7faf8308ee50; frame = (0 0; 414 774); layer = <CALayer: 0x
6000058ae5e0>>>; currentUpdate: [UICollectionViewUpdate - 0x7faf83098630: old:<UICollectionViewData: 0x600002858620> new<UICollectionViewData: 0x600002858b60> items:<(
    "I(0,2)"
)>]

Hi,

I am using RadChat control on a ContentView with the top navigation bar. On iOS, when the keyboard appears, the control scrolls correctly with the top navigation bar visible all the time. On android, however, as soon as the keyboard appears for the user to start typing, the whole view scrolls resulting on the top navigation bar to slide too. Is there a workaround that you would suggest for only the control to scroll and not the whole view?

Thanks

Hi Team,

When I use normal Listview as shown below, the binding works:

<ListView x:Name="DetailsList"
                      HasUnevenRows="true"
                      ItemsSource="{Binding SavedDetailsList}"
                      SeparatorVisibility="None">
                <ListView.ItemTemplate>
                    <DataTemplate>
                        <local:BitDetailsInfoCell />
                    </DataTemplate>
                </ListView.ItemTemplate>
            </ListView>

=================Telerik RadListView Binding not working====================

But the same is not working when I am using Telerik RadListview.

<telerikDataControls:RadListView x:Name="DetailsList" Grid.Row="1"
                                    Grid.Column="0"
                                     BackgroundColor="White"
                                     IsItemSwipeEnabled="True"
                                     ItemsSource="{Binding SavedDetailsList}"
                                     SelectionMode="None"
                                     SwipeOffset="70, 0, 0, 0"
                                     SwipeThreshold="10">
        <telerikDataControls:RadListView.ItemTemplate>
            <DataTemplate>
                <telerikListView:ListViewTemplateCell>
                    <telerikListView:ListViewTemplateCell.View>
                        <Grid>
                            <Label Margin="10,10,10,0"
                                   FontAttributes="Bold"
                                   FontSize="16"
                                   Text="Nisha"
                                   TextColor="Black" />
                            <Label Grid.Row="1"
                                   Margin="10,0,10,10"
                                   FontAttributes="Italic"
                                   FontSize="13"
                                   Text="{Binding Path=Name,Converter={StaticResource NameConverter}}}"
                                   TextColor="Gray" />
                        </Grid>
                    </telerikListView:ListViewTemplateCell.View>
                </telerikListView:ListViewTemplateCell>
            </DataTemplate>
        </telerikDataControls:RadListView.ItemTemplate>
        <telerikDataControls:RadListView.ItemSwipeContentTemplate>
            <DataTemplate>
                <Grid Margin="0"
                      Padding="0"
                      ColumnSpacing="0"
                      RowSpacing="0">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="70" />
                        <ColumnDefinition Width="*" />
                    </Grid.ColumnDefinitions>
                    <Button Margin="0"
                            BackgroundColor="Red"
                            BorderRadius="0"
                            Clicked="RemoveBook"
                            Image="delete_bg.png"
                            WidthRequest="70" />
                </Grid>
            </DataTemplate>
        </telerikDataControls:RadListView.ItemSwipeContentTemplate>
    </telerikDataControls:RadListView>

Please help me on this.

Regards,

Nisha

I am trying to make a DataGrid with only one DataGridTextColumn. I do not want a header for this column, is there a flag or someway of making it invisible?

Thanks,

Evan