Validator class
Methods
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add(String? callback(String?))
→ Validator
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Returns a copy of this Validator, with
callback added to the end of its callbacks.
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call(String? value)
→ String?
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contains(String string, {String message = "Validator.contains"})
→ Validator
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Returns a Validator that accepts a value that contains a match of
string.
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copy()
→ Validator
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Returns a copy of this Validator.
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equals(TextEditingController controller, {String message = "Validator.equals"})
→ Validator
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Returns a Validator that accepts a value that is equal to the
controller's text.
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hasNoWhitespace({String message = "Validator.hasNoWhitespace"})
→ Validator
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Returns a Validator that accepts a value that contains no whitespace
characters.
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hasWhitespace({String message = "Validator.hasWhitespace"})
→ Validator
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Returns a Validator that accepts a value containing at least one
whitespace character.
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isAlphabetical({String message = "Validator.isAlphabetical"})
→ Validator
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Returns a Validator that accepts a value that is comprised of only letters, or empty.
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isAlphanumerical({String message = "Validator.isAlphanumerical"})
→ Validator
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Returns a Validator that accepts a value that is comprised of only letters and numbers, or empty.
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isLowerCase({String message = "Validator.isLowerCase"})
→ Validator
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Returns a Validator that accepts a value where all letters are lower-case.
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isNotEmpty({String message = "Validator.isNotEmpty"})
→ Validator
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Returns a Validator that accepts a value that is not null or empty.
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isNumerical({String message = "Validator.isNumerical"})
→ Validator
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Returns a Validator that accepts a value that is comprised of only numbers, or empty.
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isUpperCase({String message = "Validator.isUpperCase"})
→ Validator
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Returns a Validator that accepts a value where all letters are upper-case.
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matches(RegExp regExp, {String message = "Validator.matches"})
→ Validator
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Returns a Validator that accepts a value that has a match in
regExp.
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maxLength(int length, {bool trim = false, String message = "Validator.maxLength"})
→ Validator
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Returns a Validator that accepts a value that is shorter or of equal length to
length.
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minLength(int length, {bool trim = false, String message = "Validator.minLength"})
→ Validator
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Returns a Validator that accepts a value that is longer or of equal length to
length.
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noSuchMethod(Invocation invocation)
→ dynamic
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Invoked when a nonexistent method or property is accessed.
inherited
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notEquals(TextEditingController controller, {String message = "Validator.notEquals"})
→ Validator
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Returns a Validator that accepts a value that is not equal to the
controller's text.
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toString()
→ String
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A string representation of this object.
inherited
