C# WP8 Get selected content from listPicker

Question

I can't find a way to get and show the content of the current selected item, here is the XAML:

<toolkit:ListPicker Name="lp" Header="Network" SelectionChanged="selectionChanged">
            <toolkit:ListPickerItem Content="aaa" />
            <toolkit:ListPickerItem Content="bbb" />
</toolkit:ListPicker>

and the rest of the code:

private void selectionChanged(object sender, SelectionChangedEventArgs e)
    {
        try
        {
            if (e.RemovedItems != null && e.RemovedItems.Count > 0)
            {
                if (this.lp.SelectedItem != null)
                {
                    var selectedItem = (sender as ListPicker).SelectedItem;
                    int selindex = lp.SelectedIndex; //just for testing
                    MessageBox.Show(selindex.ToString()); //just for testing
                    string text = (lp.SelectedItem as ListBoxItem).Content.ToString();
                }
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message);
        }
    }

It gives me this exception at "string text..." line:

Object reference not set to an instance of an object

Which line do you get the exception on? You may need to take away your catch block to see this. — JMK
It gives me the exception at the "string text..." line. The rest is working fine, it gives me the current index. — sparcopt
I think this link might answer your question. stackoverflow.com/questions/15325243/… — YnotDraw
possible duplicate of Listpicker error SelectedItem must always be set to a valid value — Robert MacLean

Andrey Larin Andrey Larin · Accepted Answer · 2013-06-03T13:04:44

Try using code below

try
{
   if (e.RemovedItems != null && e.RemovedItems.Count > 0)
   {
        if (this.mode.SelectedItem != null)
        {
             var selectedItem = (sender as ListPicker).SelectedItem as ListPickerItem;
             int selindex = mode.SelectedIndex; //just for testing
             MessageBox.Show(selindex.ToString()); //just for testing
             string text = (selectedItem as ListPickerItem).Content.ToString();
        }
   }
}
catch (Exception ex)
{
       MessageBox.Show(ex.Message);
}

C# WP8 Get selected content from listPicker

1 Answers