CODEWITHSUNDEEP
c#windows-8windows-store-appswinrt-xaml
rootcoder
rootcoder

Reputation: 187

Get the value of textblocks inside Listview itemtemplate in windows 8 store app

I dynamically populate a listview with XAML like below 

<ListView>
    <ListView.ItemTemplate>
        <DataTemplate x:Name="templateTrending" >
            <StackPanel Orientation="Horizontal">
                <TextBlock x:Name="questionBlock" Text="{Binding Path=ques}" Margin="20" />
                <TextBlock x:Name="categoryBlock" Text="{Binding Path=categ}" Margin="20"/>
                <TextBlock x:Name="userBlock" Text="{Binding Path=user}" Margin="20"/>
            </StackPanel>
        </DataTemplate>
    </ListView.ItemTemplate>
</ListView>

Now in the listviewselection changed method I need to get the values of the textblocks and pass to next XAML page.I tried Jerry Nixon's method but am not able to figure it out.Then I tried wpf method that too didn't work out.So how to achieve this.And below is the code how I assigned the value to the list view

public class Product
{
    public string Question { get; set; }

    public string Category { get; set; }

    public string User { get; set; }
}

And adding it the list view as below

ParseQuery<ParseObject> query = ParseObject.GetQuery("Questions").Include("user");
IEnumerable<ParseObject> res = await query.FindAsync();

List<Product> list = new List<Product>();
foreach (var i in res)
{
    var u = i.Get<ParseUser>("user").Username;
    var q = i.Get<string>("question");
    var c = i.Get<string>("category");
    list.Add(new Product
    {
        Question = q,
        Category = c,
        User = u,
    });
}
listTrending.ItemsSource = list;

Am getting the data from parse.com backend.And my selected item code as below

private void listTrending_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
    string Qpass = listTrending.SelectedItem.ToString();
    this.Frame.Navigate(typeof(WallScreen), Qpass);
}

And the code under onnvaigated to method as below

protected override void OnNavigatedTo(NavigationEventArgs e)
{
    if (e.Parameter != null)
    {
        textQuestion.Text = e.Parameter.ToString();
    }
    else
    {
        textQuestion.Text = "";
    }
}

Upvotes: 0

Views: 1757

Answers (2)

Jon
Jon

Reputation: 2891

You need to post the code for your selection changed event handler. I am not sure I uderstand what you are trying to do because if all you are trying to do is get the contents of the selected item it is as easy as this:

    private void myListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        if(e.AddedItems.Count > 0)
        {
            Product p = e.AddedItems[0] as Product;
        }
    }

Upvotes: 0

Filip Skakun
Filip Skakun

Reputation: 31724

I think you're looking at it the wrong way. If you are trying to get the values of a selected item and the values are displayed in UI using bindings - you can extract these values from the binding source which in your case is the listTrending.SelectedItem - you just need to cast it to Product.

Upvotes: 1

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