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Add Page Carrousel

I have built a simple and basic app. In order to help people to understand easly the app.
I would like to create a dynamic turorial. My idea is put differents content's pages in a carousel or collection view. And In every content's pages there is an image in background and I will add label and box to explain fonctionalities
Here you will find an example of an image that I will put in background of content page and add label to explain highlighted information
My question are :
I have 3 content pages that I will put backgroud image on it :
home =new HomePage(), Page2 page2 =new Page2() & Page3 page3 =new Page3()
how can i easly add label where I want as the image will be in background ?
how I can put those content pages in carrousel view or collection view ?
Thanks for your help

You can create carousel like this:
<StackLayout Grid.Row="1" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
<CarouselView x:Name="cvTutorial" ItemsSource="{Binding Tutorials}" HorizontalScrollBarVisibility="Never" ItemsUpdatingScrollMode="KeepItemsInView" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand" PeekAreaInsets="10" IsScrollAnimated="True" PositionChanged="cvTutorial_PositionChanged">
<CarouselView.ItemTemplate>
<DataTemplate>
<Grid RowSpacing="0" Padding="0" HorizontalOptions="End">
<Grid.RowDefinitions>
<RowDefinition Height="*"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<ffimageloading:CachedImage BackgroundColor="Transparent" Grid.Row="0" x:Name="tutorialImg" Source="{Binding ImageUrl}" Aspect="AspectFit" HorizontalOptions="FillAndExpand"
Margin="{DynamicResource 50,40,50,00}" HeightRequest="350"/>
<StackLayout Grid.Row="1" HorizontalOptions="Center" VerticalOptions="End" Padding="0,30,0,0" Spacing="15">
<Label Style="{StaticResource RobotoBoldSize24WhiteLabelStyle}" HorizontalTextAlignment="Center" Text="{Binding Title}" Padding="10,10,10,0" />
<Label Style="{StaticResource RobotoRegularSize16LightGrayLabelStyle}" HorizontalTextAlignment="Center" Text="{Binding Subtitle}" HorizontalOptions="Center"
Padding="50,10,50,10" />
</StackLayout>
</Grid>
</DataTemplate>
</CarouselView.ItemTemplate>
</CarouselView>
<Grid x:Name="indicatorGrid" ColumnSpacing="3" HorizontalOptions="Center" VerticalOptions="Start" Padding="{DynamicResource MarginPadding00_20_00_40}"
ColumnDefinitions = "25,25,25">
<pancake:PancakeView x:Name="Dot_1" Grid.Column="0" Style="{StaticResource SelectedIndicatorStyle}" />
<pancake:PancakeView x:Name="Dot_2" Grid.Column="1" Style="{StaticResource UnselectedIndicatorStyle}" />
<pancake:PancakeView x:Name="Dot_3" Grid.Column="2" Style="{StaticResource UnselectedIndicatorStyle}"/>
</Grid>
</StackLayout>
Check working sample - https://rb.gy/mlmh0q

Xamarin Forms How can I inject a ContentPage into Frame element?

I need to inject a ContentPage into Frame element ?
Is this possible to be done ?
I have update my description and I have added the below code
XAML Code
<navigationdrawer:SfNavigationDrawer x:Name="navigationDrawer"
DrawerWidth ="400"
Position="Right"
BackgroundColor="{DynamicResource DynamicContentPageBackgroundColor}"
DrawerHeaderHeight="160">
<navigationdrawer:SfNavigationDrawer.ContentView>
<Grid x:Name="mainContentView" BackgroundColor="{DynamicResource DynamicContentPageBackgroundColor}">
<Grid.RowDefinitions>
<RowDefinition Height="auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<StackLayout BackgroundColor="{DynamicResource DynamicContentPageBackgroundColor}" Orientation="Horizontal">
<controls:IconButton Text="{i18n:TransIcn HamburgerMenu}" FontSize="30" x:Name="SyncIcon" HorizontalOptions="Start" Clicked="hamburgerButton_Clicked" BackgroundColor="Transparent" TextColor="#FFFFFF" ></controls:IconButton>
<Label x:Name="headerLabel" HorizontalTextAlignment="Center" VerticalTextAlignment="Center" Text="" FontSize="16"/>
</StackLayout>
<ScrollView Grid.Row="1" Margin="0" Padding="0">
<Frame x:Name="contentViewFrame" >
</Frame>
</ScrollView>
</Grid>
</navigationdrawer:SfNavigationDrawer.ContentView>
<navigationdrawer:SfNavigationDrawer.DrawerHeaderView>
<Grid BackgroundColor="{DynamicResource DynamicContentPageBackgroundColor}">
<Grid.RowDefinitions>
<RowDefinition Height="120"/>
<RowDefinition Height="40"/>
</Grid.RowDefinitions>
<!--<Image Source="icon.png" HeightRequest="110" BackgroundColor="#1aa1d6" VerticalOptions="Center" HorizontalOptions="Center"/>-->
<Label Text="James Pollock" Grid.Row="1" HorizontalTextAlignment="Center" HorizontalOptions="Center" FontSize="20" TextColor="White"/>
</Grid>
</navigationdrawer:SfNavigationDrawer.DrawerHeaderView>
<navigationdrawer:SfNavigationDrawer.DrawerContentView>
<ListView x:Name="listView"
FlowDirection="RightToLeft"
ItemsSource="{Binding Items}"
BackgroundColor="{DynamicResource DynamicContentPageBackgroundColor}"
ItemSelected="listView_ItemSelected">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<StackLayout Orientation="Horizontal" Margin="0,8,0,0" BackgroundColor="{DynamicResource DashboardItemsDarkSurface}">
<Label Text="{Binding IconText}" HorizontalOptions="Start" FontSize="30" Style="{StaticResource EventaIconStyle}" ></Label>
<Label Text="{Binding Title}" HorizontalOptions="Start" Style="{StaticResource MainHeaderLabel}"></Label>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</navigationdrawer:SfNavigationDrawer.DrawerContentView>
<navigationdrawer:SfNavigationDrawer.DrawerFooterView>
<Grid BackgroundColor="{DynamicResource DynamicContentPageBackgroundColor}" >
<StackLayout VerticalOptions="Center"
`enter code here` HorizontalOptions="Center">
<Label Text="Footer View"/>
</StackLayout>
</Grid>
</navigationdrawer:SfNavigationDrawer.DrawerFooterView></navigationdrawer:SfNavigationDrawer>
Please Let me know if you need more information.
The issue is that I cannot add a ContentPage Object into the ContentView item so could please provide me with some workarounds that I might go for ?

As they have been mentioning in the comments about a content VIEW vs content page, that should work for you with a slight bit of alteration. When I wrote my first Xamarin app, I had several other applications over time that have had nested controls in controls and did not want to find myself in similar.
So, what I did was to create simple user controls with all the stuff I needed on them. So when I was creating a page, I would just add my user control where it physically needed to be placed. This way, should I need to alter the layout of that one user control, it doesn't change the functionality the rest of the way through. Binding was the same because the binding context was the same level, regardless of the VISUAL depth of controls.
So, if you were to create a new Navigation drawer user control of its own context, then slap that in your content page should work for you.

Change a button's image on tap of other button inside a list view, view cell

I have a listview. This list view has 5 rows with two buttons namely A & B. When I tap on button A on a row, I want to change the image on A as well as B on the same row and vice-versa. I am able to individually tap and change the image on the same button but don't know how to change the image on the other button. Here is my listview:
<ListView x:Name="GroupedView" SeparatorColor="Transparent" GroupDisplayBinding="{Binding Title}" IsGroupingEnabled="true" HasUnevenRows="true" >
<ListView.GroupHeaderTemplate>
<DataTemplate>
<ViewCell>
<StackLayout Orientation="Horizontal" Padding="5" BackgroundColor="#E2F5F9">
<Label Text="{Binding Title}" TextColor="{StaticResource NavyBlue}" />
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.GroupHeaderTemplate>
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<StackLayout Orientation="Horizontal" Spacing="2" Padding="5">
<StackLayout VerticalOptions="FillAndExpand">
<Label Text="{Binding QuestionName}" />
</StackLayout>
<StackLayout IsVisible="{Binding ShowYesNo}" Spacing="15" Orientation="Horizontal" HorizontalOptions="End">
<Button ClassId="Yes" Clicked="ChoiceSelected" CommandParameter="{Binding question_id}" Image="{Binding YesChoiceImg}" />
<Button ClassId="No" Clicked="ChoiceSelected" CommandParameter="{Binding question_id}" Image="{Binding NoChoiceImg}" />
</StackLayout>
</StackLayout>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
I am then using the sender to identify the class ID and change the image of the button.
Should I be using a command? Should I be doing something else? Please help. Thanks

If you want to use the CommandParameter you should be using a Command. At the moment you're mixing 2 different ways to handle the click.
One thing to note though is that if you use a command you usually want to bind it to a Command that is defined on your ViewModel but since inside the DataTemplate your BindingContext is the ListView item instead of the ViewModel so you have to reference around that. Something like this should work:
<DataTemplate>
<ViewCell>
<StackLayout Orientation="Horizontal" Spacing="2" Padding="5">
<StackLayout VerticalOptions="FillAndExpand">
<Label Text="{Binding QuestionName}" />
</StackLayout>
<StackLayout IsVisible="{Binding ShowYesNo}" Spacing="15" Orientation="Horizontal" HorizontalOptions="End">
<Button ClassId="Yes" Command="{Binding Path=BindingContext.ButtonCommand, Source={x:Reference MyQuestionPage}}" CommandParameter="{Binding .} Image="{Binding YesChoiceImg}" />
<Button ClassId="No" Clicked="ChoiceSelected" CommandParameter="{Binding question_id}" Image="{Binding NoChoiceImg}" />
</StackLayout>
</StackLayout>
</ViewCell>
</DataTemplate>
Note here that you have to give your ContentPage an x:Name (so you can reference it and call the BindingContext on it). And the "{Binding .}" binds to the current list item. So no need to search for it on id you can just plug it into the command directly!

BindingContext is not working in Xamarin forms

I use the below code to bind data to a label for changing a slider value and it works fine.
<StackLayout VerticalOptions="Center" HorizontalOptions="Center" >
<Label Text="{Binding Source={x:Reference slider1}, Path=Value, StringFormat='Value is {0:F2}'}"
Opacity="{Binding Source={x:Reference slider1}, Path=Value}"
x:Name="label1"/>
<Slider x:Name="slider1"></Slider>
</StackLayout>
In xaml.cs page, I have initiated the slider value to 0.5
public MainPage()
{
InitializeComponent();
slider1.Value=0.5;
}
But, when I want to Binding data using BindingContext, it does not show the output correctly.
<StackLayout VerticalOptions="Center" HorizontalOptions="Center" >
<Label BindingContext="x:Reference slider1"
Text="{Binding Value, StringFormat='Value is {0:F2}'}"
Opacity="{Binding Value}"
x:Name="label1"/>
<Slider x:Name="slider1"></Slider>
</StackLayout>
What is the problem with my second xaml?

I think, you have missed the {}. Try
<Label BindingContext="{x:Reference slider1}"
instead of
<Label BindingContext="x:Reference slider1"

If you use BindingContext then the object should implement INotifyPropertyChanged.
Slider doesn't implement this interface. Generally, you should assign BindableProperty to BindingContext.
https://developer.xamarin.com/guides/xamarin-forms/xaml/bindable-properties/

How to get children of the ListView in xamarin.forms?

<ListView x:Name="ListNewsLetter" AbsoluteLayout.LayoutFlags="All" AbsoluteLayout.LayoutBounds="0,0,1,1" SeparatorVisibility="Default" VerticalOptions="Fill" ItemTapped="ListNewsLetter_ItemTapped" HasUnevenRows="True">
<ListView.ItemTemplate>
<DataTemplate>
<ViewCell>
<ViewCell.View>
<StackLayout HorizontalOptions="Fill" VerticalOptions="Center" Padding="5">
<StackLayout Padding="1" BackgroundColor="#f15a23" HorizontalOptions="FillAndExpand" VerticalOptions="FillAndExpand">
<StackLayout x:Name="stkNewsLetter" VerticalOptions="Center" BackgroundColor="#f15a23" Orientation="Horizontal" HeightRequest="30" Padding="6,0,6,0">
<Label x:Name="lblName" Text="{Binding NewsHeadline}" HorizontalOptions="StartAndExpand" TextColor="White" VerticalTextAlignment="Center" FontSize="Small"/>
<Image x:Name="imgPlus_Minus" HeightRequest="20" WidthRequest="20" Source="ico_down_arrow2_right.png" HorizontalOptions="End" ClassId="{Binding TapId}">
<Image.GestureRecognizers>
<TapGestureRecognizer Tapped="img_Tapped" NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>
</StackLayout>
<StackLayout x:Name="stkNewsLetterDetail" Orientation="Vertical" BackgroundColor="#ffffff" IsVisible="true" HorizontalOptions="FillAndExpand" Padding="6,0,6,0">
<Label x:Name="lblDate" Text="{Binding NewsDate}" HorizontalOptions="StartAndExpand" VerticalTextAlignment="Start" TextColor="#585858" FontSize="Small"/>
<Label x:Name="lblDetail" Text="{Binding NewsDetails}" HorizontalOptions="FillAndExpand" VerticalTextAlignment="Start" TextColor="#585858" FontSize="Small"/>
</StackLayout>
</StackLayout>
</StackLayout>
</ViewCell.View>
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
As you see in code ListView having main two child named "stkNewsLetter" and "stkNewLetterDetail". First Stack having Image and I want to change visibility of second stack on Image tap event.
In windows phone It will possible to get UI elements of List view but In xamarin.forms how it is possible?

You should bind to the Visability property on the stackLayout in the same way you are binding the Text. If the stackLayout doesn't have a visibility property you may need to wrap it within another control that does.
The click should change a visibility property in you viewmodel which will get picked up by the binding mentioned above.

For those who came here to get the child elements through Name like me,here is the solution:
var selectedItem = //any item selected within listview through OnItemTapped
StackLayout child1 = selectedItem.FindByName<StackLayout>("stkNewsLetter");