How does one regenerate a form?

Question

How does one regenerate a form?

I had a form up and running, did a save and then nothing. The form reapeared with no controls on it. I checked the Code view and all the code was there. I checked the form.designer.cs, all the descriptors for all the boxes, control, and everything else were there. So why isn't being seen. This is the second this has happened.

I dont want to recreate the whole project.

How can I "turn on" or recreate this form?

Thanks