The caseFormat property specifies how
to treat input and output in relation to case sensitivity. The value
of the property is one of the following values of the CaseFormatKind enumeration:
defaultCase
Has no effect on case.
lowerCase
Transforms characters to lowercase, when possible.
upperCase
Transforms characters to uppercase, when possible.
defaultCase is the default value for
this property. It can be updated at run time.