Get Data by e.ClickedItem

Question

Hi, I can't operate with e.ClickedItem, my xml code is:

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
        <ListView x:Name="Lista" SelectionMode="None" IsItemClickEnabled="True" ItemClick="Lista_ItemClick">
            <ListView.ItemTemplate>
                <DataTemplate>
                    <StackPanel>
                        <TextBlock Text="{Binding generi}" x:Name="txtshow"/>
                    </StackPanel>
                </DataTemplate>
            </ListView.ItemTemplate>
        </ListView>
    </Grid>

and my c# code is: 

private async void Lista_ItemClick(object sender, ItemClickEventArgs e)
        {
            string i = e.ClickedItem.ToString();
            
            var mess = new Windows.UI.Popups.MessageDialog(i);
            await mess.ShowAsync();
        }

and the app returns this:



I mistake to manager the Binding in TextBlock. Please Help me :)
thanks for all.

Answer 1

please explain your problem clearly 

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thanks, prathap If a post answers your question, please click "Mark As Answer" on that post and "Mark as Helpful".

Answer 2

e.ClickedItem returns an object reference. If you want to access the properties of the selected item, then you have to cast it to the appropriate data type. So if we assume that you assign a List of "YourClassHere" as ItemsSource for the Lista control, then the first line of the ItemClick event handler could look like this:

string i = (e.ClickedItem as YourClassHere).generi;

Answer 3

thanks, I have written the class:

class Generi
    {
        public string generi { get; set;}
    }

and I have used the code

string i = (e.ClickedItem as Generi).generi;

But I receved NullReferenceException.

Answer 4

how are you setting the itemssource of your list now? can show the whole code?

you shouldnt create a new class. becasue your casting to the wrong class you get a nullreferenceexception

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Microsoft Certified Solutions Developer - Windows Store Apps Using C#

Answer 5

I get data by JSON and insert data from Lista.ItemsSource = n;
n are elements of JSON, and I fill a ListView call "Lista", in my first post you can find the ListView.

var jsonList = JsonArray.Parse(result); // Add: using Windows.Data.Json;

                var n = from m in jsonList
                        select new
                        {
                            generi = m.GetObject()["Title"].GetString()
                        };

                // Display data read from web site
                Lista.ItemsSource = n;

Answer 6

the lync query returns an auto created class (anonomous class) change the query to this:

var n = from m in jsonList
                        select new Generi
                        {
                            generi = m.GetObject()["Title"].GetString()
                        };

then the casting should work

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Microsoft Certified Solutions Developer - Windows Store Apps Using C#

Answer 7

Work!!! :)
Thanks for all :)