In fields with nonnumeric values, the edit string , character (a
    comma) inserts a comma into the edited value.

    In fields with numeric values, the edit string comma character
    inserts a comma or suppresses a leading zero in the edited value.

    The following example shows how the comma character is inserted
    into the edited value when the edit string has a nonnumeric
    value.

    CDO Edit       AA,AA
    String:
    DTR Edit       AA,AA
    String:
    Field Value:   ohno
    Edited         oh,no
    Value:

    The following example shows how a comma character in a CDO edit
    string causes a comma to be inserted in the edited value.

    CDO Edit       $$,$$9.99
    String:
    DTR Edit       $$,$$9.99
    String:
    Field Value:   1234.56
    Edited         $1,234.56
    Value:

    The following example shows what happens when a comma character
    is included in an edit string with numeric values, but the comma
    is not required in the edited value:

    CDO Edit       $$,$$9.99
    String:
    DTR Edit       $$,$$9.99
    String:
    Field Value:   12.34
    Edited         $12.34
    Value: