Question

public MainPage()
{
    InitializeComponent();
    CheckBox c = new CheckBox();
    for (int i = 0; i < 2; i++)
    {
       c.Content = " Value ";
       lbox.Items.Add(c);
    }
}

lbox is an empty listbox in the UI and the above code throws an unhandled exception which is caught by code in App.xaml.cs. The code works fine if I remove for loop. What’s wrong with this code?

Answer 1

try putting the check box inside the loop

public MainPage()
{
    InitializeComponent();

    for (int i = 0; i < 2; i++)
    {
        CheckBox c = new CheckBox();
        c.Content = " Value " ;
        lbox.Items.Add(c);
    }
}