Windows Phone 7 Listbox selection data binding

Question

I'm using this tutorial as a base for my first app. I'm trying to select a listbox item and view data from said item, but(my Android and iOS brain is having issues with this), how do I view the data binding behind that?

lstContact.ItemsSource = from contact in xmlContact.Descendants("contact")
                                 select new ContactItem
                                 {
                                     ImageSource = contact.Element("Image").Value,
                                     FName = contact.Element("FName").Value,
                                     LName = contact.Element("LName").Value
                                     Extension = contact.Element("Extension").Value,
                                     Email = contact.Element("Email").Value,
                                     ID = contact.Element("ID").Value
                                 };

This is how I'm setting it up my data source, and it's pulling correctly. How would I go about going in and getting the email or extension from said listbox item?

lstContact.ItemsSource is effectively now a IEnumerable<ContactItem>. Assuming you want a 'selected' item, are you listening to SelectionChanged? — William Melani
– William Melani, Commented May 23, 2012 at 18:19
if (lstContact.SelectedIndex == -1) return; var contactItem = (ContactItem)lstContact.SelectedItem; /*do something */ lstContact.SelectedIndex = -1; — William Melani
– William Melani, Commented May 23, 2012 at 18:21
That worked perfectly! Mind sticking that in an answer so I can accept it as the answer? — Spencer Cole
– Spencer Cole, Commented May 23, 2012 at 18:26

William Melani · Accepted Answer · 2012-05-23 19:02:41Z

2

In your example, lstContact.ItemsSource is effectively now a IEnumerable<ContactItem>. Assuming you want a 'selected' item, in your SelectionChanged event:

public void ListBoxContainerSelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            if (lstContact.SelectedIndex == -1) return; 
            ContactItem contactItem = (ContactItem)lstContact.SelectedItem; 
            /*do something */ 
            lstContact.SelectedIndex = -1;
}

answered May 23, 2012 at 19:02

William Melani

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