VB.NET 2010, Framework 3.5

All the documentation I see says that the DialogResult's default value is None

Return Values:
One of the System.Windows.Forms.DialogResult values. The default value is None.

The problems I'm seeing. . I open a form via ShowDialog(), the form I open does NOT set a DialogResult value anywhere, it seems no matter how I close the dialog the returning DialogResult is always 'Cancel' not 'None'. Why is it documented to default to 'None' when it seems that the default is 'Cancel'??