How to open specific page when selecting specific item on a listview with DataBiding?

DavidFreire · January 2017

I have a ListView that has item source of a local data base like this:
XAML

    <ListView x:Name="MylistView" >
        <ListView.ItemTemplate>
            <DataTemplate>
                <ViewCell>
                    <StackLayout Padding="15" Orientation="Horizontal">
                        <Label Text="{Binding Id}" FontAttributes="Bold" TextColor="Gray" />
                        <Label Text="-" FontAttributes="Bold" TextColor="Gray" />
                        <Label Text="{Binding Titulo}" FontAttributes="Bold" TextColor="Gray" />                  
                    </StackLayout>
                </ViewCell>
            </DataTemplate>
        </ListView.ItemTemplate>
    </ListView>

C# code behind

        List<MyListView> pplList = await App.PersonRepo.GetAllPeopleAsync();

        ObservableCollection<THinos> pplCollection = new ObservableCollection<THinos>(pplList);
        HinoListView.ItemsSource = pplCollection;

So i want that when i click on an item on the listview he open a new page with the property data of the Id that his taking of the database, something like "See more" button that opens another page with the rest of the content...

I'm kinda new on Xamarin forms so any help would be great...

AlessandroCaliaro · January 2017

in your xaml you should have a SelectedItem property, right?
I don't use xaml... in c# it is something like

listView.SetBinding(ListView.SelectedItemProperty, "SelectedItem");

then in your ViewModel you should have something like

private MyModel _selectedItem {get;set;}

public MyModel SelectedItem {

    get {
        return _selectedItem;
    }

    set {
        _selectedItem = value;

        // When your item is selected, you can open a new "PageDetail" and pass the value
        Application.Current.MainPage.Navigation.PushAsync (new PageDetail(_selectedItem)); // If you are in a Navigation page
    }

It's clear?

Otherwise, use ItemSelected or ItemTapped events...

AlessandroCaliaro · January 2017

there are 2 ways.
You can use ItemSelected event

https://developer.xamarin.com/guides/xamarin-forms/user-interface/listview/interactivity/#Selection_Taps

Or you can use SelectedItem property. When SelectedItem is set, you can open the page.

Something like (with binding, INotifyPropertyChanged and so on)

public MyModel SelectedItem{
    get {return _selectedItem};
    set {
        _selectedItem = value;
        if(_selectedItem != null)
            Application.Current.MainPage.Navigation.PushAsync(new PageDetail(_selectedItem));
    }
}

DavidFreire · January 2017

@AlessandroCaliaro said:
there are 2 ways.
You can use ItemSelected event

https://developer.xamarin.com/guides/xamarin-forms/user-interface/listview/interactivity/#Selection_Taps

Or you can use SelectedItem property. When SelectedItem is set, you can open the page.

Something like (with binding, INotifyPropertyChanged and so on)

public MyModel SelectedItem{
get {return _selectedItem};
set {
_selectedItem = value;
if(_selectedItem != null)
Application.Current.MainPage.Navigation.PushAsync(new PageDetail(_selectedItem));
}
}

I didn't understand your code...
I have a page with the listview and another page that i want to show the description of the selected item, can you make a exemple for me try to understand?

AlessandroCaliaro · January 2017

in your xaml you should have a SelectedItem property, right?
I don't use xaml... in c# it is something like

listView.SetBinding(ListView.SelectedItemProperty, "SelectedItem");

then in your ViewModel you should have something like

private MyModel _selectedItem {get;set;}

public MyModel SelectedItem {

    get {
        return _selectedItem;
    }

    set {
        _selectedItem = value;

        // When your item is selected, you can open a new "PageDetail" and pass the value
        Application.Current.MainPage.Navigation.PushAsync (new PageDetail(_selectedItem)); // If you are in a Navigation page
    }

It's clear?

Otherwise, use ItemSelected or ItemTapped events...

DavidFreire · February 2017

@AlessandroCaliaro said:
in your xaml you should have a SelectedItem property, right?
I don't use xaml... in c# it is something like

listView.SetBinding(ListView.SelectedItemProperty, "SelectedItem");

then in your ViewModel you should have something like

private MyModel _selectedItem {get;set;}

public MyModel SelectedItem {
  get {
      return _selectedItem;
  }

  set {
      _selectedItem = value;

      // When your item is selected, you can open a new "PageDetail" and pass the value
      Application.Current.MainPage.Navigation.PushAsync (new PageDetail(_selectedItem)); // If you are in a Navigation page
  }
It's clear?

Otherwise, use ItemSelected or ItemTapped events...

I still can not do it... just to simplify i want something like this guy said...
https://forums.xamarin.com/discussion/21080/swiping-between-pages-carousel-page

For example i have a listview that takes all e-mails from a binding with the database and i want that when i click on any e-mail he will open the content of the e-mail

AlessandroCaliaro · February 2017

take a look there. Maybe useful..

https://github.com/acaliaro/TestBindingWithListView

DavidFreire · February 2017

@AlessandroCaliaro said:
take a look there. Maybe useful..

https://github.com/acaliaro/TestBindingWithListView

That's not what i want... So, I have a page with a listview data binding and a page carousel with the same data binding... I want that when i click on a item on the list i navigate to the properly children of the carousel page.

Just it, but i can't figure out how to do it...

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