>While you can't do it with variables (as others have posted), you can do it with properties using an Assign method. In the Assign method, check the incoming assignment to see if it adheres to your data type. If it does, assign the new value. If not, disregard it or throw an error.
... or convert to the correct type. For instance, many built-in VFP functions and properties can accept both numeric and logical values (e.g. TableUpdate(), CheckBox.ControlSource).
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
