ListBox Items isEnabled WP7

Question

I am trying to set the isEnabled property to false for a ListBox Item. Included in the code is a some xaml that shows how it is done in the designer, but I need to do it in code.

Here is my code:

string[] names = { "alpha", "beta", "gamma", "delta" };

        for (int i = 0; i < names.Length; i++)
        {
            listBox1.Items.Add(names[i].ToString());

            //set items 2 & 4 to isEnabled=false
             //   <ListBoxItem Content="beta" IsEnabled="False" />  xaml code

            // My Attempt, does not compile, cannot be used like a method
            // listBox1.isEnabled(2,false);  


        }

This is for a WindowsPhone7 app using C#/Silverlight.

Answer 1

How about:

 listBox1.Items.Add(new ListBoxItem() { Content = "one", IsEnabled = true });
 listBox1.Items.Add(new ListBoxItem() { Content = "two", IsEnabled = false});

Then when you want to get the selected item you can do

  void listbox1_SelectionChanged(object sender, SelectionChangedEventArgs e)
  {
       ListBoxItem selectedItem = listbox1.SelectedItem;
       stirng content = selectedItem.Content.ToString()
  }

Answer 2

如果要为第三项设置它，例如：

listBox1.Items[2].IsEnabled = false;