I am sure this is easy and I am just missing something, but I want to bind my integer attribute to an NSTextField. The data is displayed correctly, but after I update the value in the text field and try to save the changes back to my model. I get an error saying that the update failed trying to set the integer value to a string value.

I have been searching for a while and I think I need to use a number formatter, but it would seem that there is an easier way to do this.

On a side note, what is the best way to make sure only numbers are typed into the text field?

Thanks in advance

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