CsvColumnDef class

Defines a single column's constraints.

Constructors

CsvColumnDef({required String name, Type? type, bool required = true, bool nullable = true, bool validator(dynamic value)?, String? pattern})

Defines the rules for one named column.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

name → String

Column name (header).

final

nullable → bool

Whether null values are allowed.

final

pattern → String?

Regex pattern the string value must match.

final

required → bool

Whether this column must exist.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

type → Type?

Expected type. Null means any type allowed.

final

validator → bool Function(dynamic value)?

Custom validation function.

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited