[Tutor] How to reference a wx.grid.Grid outside the method inwhich it was created?

[lauren at protopc.com]

I have created a wx.grid.Grid attached to a panel which is attached to a
frame within one method (Method #1). Inside this method I also created a
combobox.

When an item is selected in the combobox another method is called (i.e.
When the event is called the method is run
)
Inside this method I want to fill the grid created in Method #1 with data
generated/calculated from within Method #2 based on which item was
selected from the combobox.

How do I reference the grid from method #1 when I am in method #2?

Currently I am receving this error message:
"NameError: global name 'myGrid' is not defined."

It's an error against this statement in method #2:
myGrid.SetCellValue(i, 0, myValue)


Thanks!
Lauren