Passing Variable to Another Form

How can I pass a string value into the variable on another form.

Example Setup:

Form XYX
========
Dim strData As String
strData = 123
Forms![ZYX].strLocation = strData

Form ZYX
========
Public strLocation As String

declare the variable in a module as Public

Then set the variable as such

VB Code:

variable = forms![ZYX].textbox1.text