NumericUpDown Control Information Is Not Announced / Read By Windows Narrator

Hello,

I have a C# windows form. The form has a tab control with a number of settings controls such as check boxes, edit fields, buttons and NumericUpDown controls. When using the Windows Narrator accessibility feature, the values of the controls are read. However, the narrator will not announce any values for the NumericUpDown control. The value in the control is not announced. If I change the value in the control, it is not announced. I have also set the "AccessibleDescription" and AccessibleName properties on the control and those are also not announced by the screen Narrator.

Can someone tell me what to do to have the narrator announce the text for the controls?

Thanks,
Robert