Write an OnSetText event handler to specify processing that occurs whenever Text receives a new value. If there is an OnGetText event handler that formats the Value of the field in some special way for editing purposes, OnSetText should reverse the process when parsing the edited string. 

If there is no OnSetText handler, the Text property is set by setting the AsString property. 

AsString 

OnGetText 

Text 

Value 

Handling Events 

Using Default Formatting for Numeric