'bang' to use value property values

AFAIK, its not possible to implement validations without storing/holding a Value field.
Can you please explain your user case with more details.

Thanks,
Sindhu

for Example:

if the integerField value is greater or less than the value of integerField  then it should be validate.

Consider below example, 

a!integerField(  

  value: 200 ,

  saveInto: ,

  align: "LEFT",

  labelPosition: "ADJACENT",

  refreshAfter: "UNFOCUS",

   validations:

       if(value=<100,{},"validation message")

)

What's your use case?

If the value of the field is hard-coded, the designer knows what it is, and there should be no need for a validation.

Assuming you use local variables defined in the interface load, you can then reference the save variable in the validation expression.

a!integerField(
  label: "Integer",
  labelPosition: "ABOVE",
  value: local!myInt,
  saveInto: local!myInt,
  refreshAfter: "UNFOCUS",
  validations: {
    if(
      not(isnull(local!myInt)),
      if(
        local!myInt<=100,
        "error",
        {}
      ),
      {}
    )
  }
)

What's your use case?

If the value of the field is hard-coded, the designer knows what it is, and there should be no need for a validation.

Assuming you use local variables defined in the interface load, you can then reference the save variable in the validation expression.

a!integerField(
  label: "Integer",
  labelPosition: "ABOVE",
  value: local!myInt,
  saveInto: local!myInt,
  refreshAfter: "UNFOCUS",
  validations: {
    if(
      not(isnull(local!myInt)),
      if(
        local!myInt<=100,
        "error",
        {}
      ),
      {}
    )
  }
)

Thanks Robert Shankin ,
Thanks for your suggestion. I know this local variable concept but want to know that we can use that value property value by using any 'bang' or not.