'bang' to use value property values

can we use the vlaue property value in same text Filed  for validate same text Field,

eg:

a!integerField(  
   value: ,
   saveInto: ,
   align: "LEFT",
   labelPosition: "ADJACENT",
   refreshAfter: "UNFOCUS",
    validations: 

want high lighted value property value here to validate the field without storing the value in local variable or rule input . want to know it is possible or not.  

)

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