question

Hello,

You could set the names as an array, and get the index in CurrentPageChanged event, then you could get the name by this index. Refer to the following code :
XAML

 <?xml version="1.0" encoding="UTF-8"?>
 <CarouselPage xmlns="http://xamarin.com/schemas/2014/forms"
               xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
               x:Class="CarouselPageDemo.MyCarouselPage"
               CurrentPageChanged="CarouselPage_CurrentPageChanged">
     <NavigationPage.TitleView>
         <StackLayout>
             <Label x:Name="TitleLabel" Text="Home Page" VerticalOptions="Center" />
         </StackLayout>
     </NavigationPage.TitleView>
     <ContentPage x:Name="ContentPageHomePage">
         <StackLayout>
             <Label Text="ContentPageHomePage" FontSize="Medium" HorizontalOptions="Center" />
             <BoxView Color= "red" WidthRequest="200" HeightRequest="200" HorizontalOptions="Center" VerticalOptions="CenterAndExpand" />
         </StackLayout>
     </ContentPage>
     <ContentPage x:Name="ContentPagePag2">
     </ContentPage>
     <ContentPage x:Name="ContentPagePag3">
     </ContentPage>
     <ContentPage x:Name="ContentPagePag4">
     </ContentPage>
 </CarouselPage>

Code behind

  public static IList<String> NameSource { get; set; } = new List<String>() { "ContentPageHomePage","ContentPagePag2", "ContentPagePag3", "ContentPagePag4" };
         private void CarouselPage_CurrentPageChanged(object sender, EventArgs e)
         {
             var index = this.Children.IndexOf(this.CurrentPage);
             String name = NameSource[index];
            // TitleLabel.Text = name;
         }

If your ContentPage in CarouselPage is similar, try to use <CarouselPage.ItemTemplate>, then set the ItemsSource, and get the model. The ColorsDataModel is here : https://github.com/xamarin/xamarin-forms-samples/blob/main/Navigation/CarouselPageTemplate/CarouselPageNavigation/ColorsDataModel.cs
The XAML is here: https://github.com/xamarin/xamarin-forms-samples/blob/main/Navigation/CarouselPageTemplate/CarouselPageNavigation/MainPage.xaml

 public MyCarouselPage()
         {
             InitializeComponent();
             ItemsSource = ColorsDataModel.All;
         }
         private void CarouselPage_CurrentPageChanged(object sender, EventArgs e)
         {
             var index = this.Children.IndexOf(this.CurrentPage);
             ColorsDataModel model = ColorsDataModel.All[index];
            TitleLabel.Text = model.Name;
         }

For more details, refer to https://docs.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/navigation/carousel-page

Best Regards,
Wenyan Zhang

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