If the AutoConvert property is set to true, all convertible characters are automatically converted according to the input mask. For example, if the input mask is set to "A", then pressing a lower case character automatically converts the character into an upper case.
If SBCS is entered in a DBCS mask input, the entered character is automatically converted to DBCS. Also a DBCS space is automatically converted to a SBCS space when the control only allows SBCS.