constants ValidateAsEnum
The ValidateAsEnum type specifies the additional
  validation the control can make when user leaves the field. The ValidateAs
  property specifies the additional validation the control can make when user
  leaves the field. The ValidateAsEnum type supports the following values:


 |  | Name | Value | Description |  | 
 |  | 
exValidateAsNone | 0
 | 
 No effect.
 |  | 
 |  | 
exValidateAsDate | 1
 | 
 The field is validated as date.
 |  |