Vfrdtyky

With the help of this 2 Tutorial : https://www.youtube.com/watch?v=mTf6zHsM1y8 and https://www.youtube.com/watch?v=GG10QPrRC3w an Expandable works normal, Add Searchbar search works normal but after search has been executed Expandable list do not expand wondering where I did wrong Please help Thanks.

LexisPage.xaml(Content)

<ContentPage.BindingContext>
<local:LexisListModel/>
</ContentPage.BindingContext>

LexisPage.xaml

<Grid BackgroundColor="Black">

    <Grid.RowDefinitions>

        <RowDefinition Height="40" />

        <RowDefinition Height="8*" />

    </Grid.RowDefinitions>



    <SearchBar Grid.Row="0"

               x:Name="MySearch"

               Text="{Binding Word}"

               Margin="2,2,2,0"

               BackgroundColor="White"

               CancelButtonColor="Black"

               Placeholder="Search"

               TextChanged="MySearch_TextChanged"

               PlaceholderColor="LightGray"/>



    <ListView Margin="2,0,2,2"  

              Grid.Row="1"

              x:Name="MyList"

              BackgroundColor="White"

              ItemTapped="ListViewItem_Tabbed" 

              ItemsSource="{Binding Words}"  

              HasUnevenRows="True" >



        <ListView.ItemTemplate>

            <DataTemplate>

                <ViewCell>

                    <StackLayout Padding="5">



                        <Label Text="{Binding Chang}"  

                               FontSize="Medium"  

                               TextColor="Black"/>



                        <StackLayout IsVisible="{Binding Isvisible}"  

                                     BackgroundColor="DarkGray"

                                     Margin="2,2,2,2">

                            <Grid>

                                <Grid.RowDefinitions>

                                    <RowDefinition Height="Auto"/>

                                    <RowDefinition Height="Auto"/>

                                </Grid.RowDefinitions>



                                <Label Text="{Binding Hint}"  

                                       WidthRequest="110"

                                       Margin="2,2,2,2"

                                       FontSize="5"

                                       Font="Italic"

                                       TextColor="Blue"/>



                                <Label Text="{Binding English}"  

                                       HorizontalOptions="Center"

                                       WidthRequest="110"  

                                       FontSize="15"  

                                       TextColor="White"/>

                            </Grid>



                            <Label Text="{Binding Defination}"  

                                   WidthRequest="100"

                                   Margin="2"

                                   FontSize="15"  

                                   TextColor="White"/>

                        </StackLayout>

                    </StackLayout>

                </ViewCell>

            </DataTemplate>

        </ListView.ItemTemplate>

    </ListView>

</Grid>

LexisPage.xaml.cs

public ObservableCollection<Word> Words { get; set; }



    public LexisPage()

    {

        InitializeComponent();

        ViewList = new LexisListModel();

        BindingContext = ViewList;

    }



    private void ListViewItem_Tabbed(object sender, ItemTappedEventArgs e)

    {

        Word word = e.Item as Word;

        LexisListModel vm = BindingContext as LexisListModel;

        vm?.ShowOrHiddenWords(word);

    }



    public LexisListModel ViewList { get; set; }



    private void MySearch_TextChanged(object sender, TextChangedEventArgs e)

    {



          MyList.BeginRefresh();

          MyList.ItemsSource = string.IsNullOrWhiteSpace(e.NewTextValue)

              ? ViewList.Words

              : ViewList.Words

                  .Where(i => i.Chang.ToLower()

                      .Contains(e.NewTextValue));



          LexisListModel vm = BindingContext as LexisListModel;



          MyList.EndRefresh();

    }

ListViewModel.cs

    private Word _oldWord;

    public ObservableCollection<Word> Words { get; set; }

    public LexisListModel()

    {

        Words = new ObservableCollection<Word>

        {

            new Word{Chang="Aest", Hint="Eng", English="Teste", Defination="Test 1 2 3[TEST]" },

            new Word{Chang="Best", Hint="Eng", English="Testet", Defination="Test 1 2 3 4[TEST]" },

            new Word{Chang="Cest", Hint="Eng", English="Testete", Defination="Test 1 2 3 4 5[TEST]" },

            new Word{Chang="Dest", Hint="Eng", English="Testetet", Defination="Test 1 2 3 4 5 6[TEST]" },

        };

    }



    public void ShowOrHiddenWords(Word word)

    {

        if(_oldWord == word)

        {

            word.Isvisible = !word.Isvisible;

            UpDateWords(word);

        }

        else

        {

            if(_oldWord != null)

            {

                _oldWord.Isvisible = false;

                UpDateWords(_oldWord);

            }

            word.Isvisible = true;

            UpDateWords(word);

        }

        _oldWord = word;

    }



    private void UpDateWords(Word word)

    {

        int Index = Words.IndexOf(word);

        Words.Remove(word);

        Words.Insert(Index, word);

    }

}

Word.cs

public class Word

{

    public string Chang { get; set; }

    public string Hint { get; set; }

    public string English { get; set; }

    public string Defination { get; set; }

    public bool Isvisible { get; internal set; }

}

App.xaml.cs

public App()

    {

        InitializeComponent();



        MainPage = new LexisPage();

    }