Hot Key to jump out of a datagrid to a textbox

I have a winform with textboxes and three datagridviews on it. I am wondering if there is way to make a hot key so when you are in a datagridview it will jump you out of it and into another or to the textboxes on the form.

I have the following code started but I can't seem to figure out how to know what datagridview the cursor is currently in. I would like to use a Shift+Enter or Alt+Enter to jump around the form.
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Thanks,
Stacy