private void ChangeMargin(object sender, SelectionChangedEventArgs args)
{
ListBoxItem li = ((sender as ListBox).SelectedItem as ListBoxItem);
ThicknessConverter myThicknessConverter = new ThicknessConverter();
Thickness th1 = (Thickness)myThicknessConverter.ConvertFromString(li.Content.ToString());
text1.Margin = th1;
String st1 = (String)myThicknessConverter.ConvertToString(text1.Margin);
gridVal.Text = "The Margin property is set to " + st1 + ".";
}
public void ConvertToString()
{
_converter.ConvertToString(new Thickness(1, 2, 3, 4)).Should().Be("1 2 3 4");
}