Xamarin - How to call a function in Collection View without error? - xamarin.forms

Question

I'm trying to call a function in a Xamarin project by using the SelectionChanged property.
Inside this property, I've called a function that I've declared in the cs file.
Here is the XAML code:
<CollectionView x:Name="PCCollection" SelectionMode="Single" SelectionChanged="Cell_Tapped" AutomationId="{Binding Tipologia_Alimento}">
Here is the CS function:
private async void Cell_Tapped(object sender, System.EventArgs e) {
Console.WriteLine("Tapped");
Console.WriteLine((sender as Cell).AutomationId.ToString());
}
When I click on the Collection View cell, it prints the value "Tapped" but it gives me also the Break Mode error: "The application is in break mode".
Could you help me with this error?
Thanks in advance.

Answer 1

Your syntax is not valid. The Collection View control does not have AutomationId property.
Sample
<CollectionView ItemsSource="{Binding Monkeys}"
SelectionChanged="Cell_Tapped"
SelectionMode="Single">
<CollectionView.ItemTemplate>
<DataTemplate>
<Grid Padding="10">
<Label Grid.Column="1"
Text="{Binding Name}"
FontAttributes="Bold" />
</Grid>
</DataTemplate>
</CollectionView.ItemTemplate>
void Cell_Tapped(object sender, SelectionChangedEventArgs e)
{
if (((CollectionView)sender).SelectedItem == null)
return;
string current = (e.CurrentSelection.FirstOrDefault() as Monkey)?.Name;
}
You can find more here
https://learn.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/collectionview/selection
https://learn.microsoft.com/en-us/xamarin/xamarin-forms/user-interface/collectionview/populate-data