I have a GridView in which blocks are generated. The content of the block is taken in this way (in the code it is indicated by comments). Everything works fine. Now there is a problem with the fact that when I click on the block (the address is written in the block), then the element that is written for this address in the database should appear (become the result of the click). How can this be implemented? It was a bit strange, as it seems to me, an idea, but its implementation didn’t give off exactly all the elements.

public sealed partial class Details : Page { public ObservableCollection<ForPerson> list { get; set; } List<ForPerson> L1; public Details() { this.InitializeComponent(); } protected override void OnNavigatedTo(NavigationEventArgs e) { base.OnNavigatedTo(e); var parametr = (ForPerson)e.Parameter; //получаем из другого файла через параметры переменные. var name_Person = parametr.namePerson; name.Text = name_Person; var tel_Person = parametr.telPerson; tel.Text = tel_Person; var adres_Person = parametr.adresPerson; adres.Text = adres_Person; var email_Person = parametr.emailPerson; email.Text = email_Person; //основной список,в который записаны адреса и элементы из базы, котрые им отвечают L1 = parametr.l1; Debug.WriteLine("______________" + "tut" + "________________" + name_Person + "____" + tel_Person + "_____" + adres_Person + "______" + email_Person); Metod(); } public void Metod() {// всякая всячина, чтобы вывести в GridView list = new ObservableCollection<ForPerson>(); foreach (ForPerson root in L1) { var T1 = root.adresD; var T2 = root.sostav; list.Add(new ForPerson { adresD = T1, sostav = T2 }); MyGrid.ItemsSource = list; //отрабатывает без проблем } Debug.WriteLine("+++++++++++++++" + list.ToFormattedJsonString()); Debug.WriteLine("_______++++++________" + "(" + L1.ToFormattedJsonString() + ")" + "________"); } private void MyGrid_SelectionChanged_1(object sender, SelectionChangedEventArgs e) {//cпособ, которым пробовала выводить элементы при нажатии на блок с адресом list = new ObservableCollection<ForPerson>(); foreach (ForPerson root2 in L1) { var T1 = root2.adresD; var T2 = root2.sostav; list.Add(new ForPerson { adresD = T1, sostav = T2 }); var res = from s in list where s.adresD == T1 select s.sostav; var res2 = res.ToFormattedJsonString(); list.Add(new ForPerson { sostav = res2 }); Debug.WriteLine("SMOTRET_____TUT_____" + res2); MyGrid2.ItemsSource = list; //но не вышло((( } } }

Part of xaml:

 <Grid HorizontalAlignment="Left" Height="392" VerticalAlignment="Top" Width="402" Margin="301,330,0,-2"> <ScrollViewer Height="387" VerticalAlignment="Top" HorizontalAlignment="Right"> <GridView x:Name="MyGrid" Width="404" Height="387" SelectionChanged="MyGrid_SelectionChanged_1" RenderTransformOrigin="0.5,0.5" UseLayoutRounding="False" d:LayoutRounding="Auto"> <GridView.ItemTemplate> <DataTemplate> <StackPanel> <Grid Width="376" > <TextBlock Text="{Binding adresD}" Height="67" TextAlignment="Center" FontSize="28" FontFamily="SF UI Display" Padding="0,10,0,0"/> </Grid> </StackPanel> </DataTemplate> </GridView.ItemTemplate> </GridView> </ScrollViewer> </Grid> <Grid HorizontalAlignment="Right" Height="389" VerticalAlignment="Top" Width="568" Margin="707,332,0,-1"> <ScrollViewer HorizontalAlignment="Right" Height="392" VerticalAlignment="Top" Width="568" Margin="0,-3,0,0"> <GridView x:Name="MyGrid2" > <GridView.ItemTemplate> <DataTemplate> <StackPanel> <TextBox x:Name="Zakaz" TextWrapping="Wrap" Text="{Binding sostav}" Background="{x:Null}" BorderBrush="{x:Null}" Height="388" Width="570"/> </StackPanel> </DataTemplate> </GridView.ItemTemplate> </GridView> </ScrollViewer> </Grid>

    1 answer 1

    In the SelectedChanged event handler, you need to find the selected item.

     var gridView = (GridView)sender; var item = (GridViewItem)gridView.SelectedItem;

    And then make the type conversion to the desired (ВашТип)item.Content

    In general, it is better to work through the building: 1) create a property

     public ВашТип CurrentВашТип { get; set; }

    2) on the Load event for the page, register the connection of your codebeek as the data source for the page

     this.DataContext = this;

    3) for your GridView list in XAML

     SelectedItem="{Binding CurrentВашТип, Mode=TwoWay}"

    Now, by selecting an item in the GridView, you will have access to the data through the CurrentType property. Yes, if you want to select the necessary element through the code, then you need to study what is INotifyPropertyChanged & ObservableCollection