How to deal with an error in CarouselView in Xamarin?-CodePudding

I would like to know how to deal with an error in CarouselView in Xamarin. I have written the following in Xaml and linked it to a group of photos.

            <CarouselView 
                          ItemsSource="{Binding PageImages}"
                          CurrentItem="{Binding CurrentPage}"
                          Position="{Binding CurrentPosition}"
                          >
                    <CarouselView.ItemTemplate >
                    <DataTemplate x:DataType="model:PageImage" >
                        <Image Source="{Binding ImageUrl}" 
                                           Aspect="AspectFit"
                                           HorizontalOptions="Center" />
                    </DataTemplate>
                </CarouselView.ItemTemplate>
            </CarouselView>

I am using ViemModel stopwatch to replace the photos in a slide show.

        private void OnStopWatchTick(object sender, ElapsedEventArgs e)
        {
            CurrentPosition  ;
        }

In this case, if the photos fail to load, the application crashes. Where do I try-catch in the code to catch the error when the photos fail to load?

Xamarin.Forms 5.0.0.2337 Xamarin.Essentials 1.7.1

CodePudding user response：

I would suggest you try the plugin : https://github.com/luberda-molinet/FFImageLoading .

Use CachedImage instead of built in Image, since it would display a default placeholder image if the load is failed ,so in this case it will not crash .

xmlns:ffimageloading="clr-namespace:FFImageLoading.Forms;assembly=FFImageLoading.Forms"

<DataTemplate x:DataType="model:PageImage" >
        <ffimageloading:CachedImage 
            HorizontalOptions="Center" 
            WidthRequest="300" 
            HeightRequest="300"
            DownsampleToViewSize="true"
            Source = Source="{Binding ImageUrl}" 
            LoadingPlaceholder = "loading.png" >
        </ffimageloading:CachedImage>
</DataTemplate>