Error HRESULT E_FAIL has been returned from a call to a COM component

Question

In Silverlight 4 app; what does this error mean?:

\"Error HRESULT E_FAIL has been returned from a call to a COM component.\"

It

Answer 1

Here's one way to generate this error, which I stumbled upon today. We have the following button in XAML:

The event handler that handles the button's Click event is as follows:

    private void Button_Click(object sender, RoutedEventArgs e)
    {
        button.Margin = new Thickness(0, double.NaN, 0, 0);
    }

When I click on the button I get the aforementioned error. The same error arises if I replace NaN with PositiveInfinity or NegativeInfinity.

Interestingly, I get a different error message if the first parameter of the Thickness constructor contains the NaN instead of the second.