API: Field Types

All field types extend the abstract FormField base class and register with a unique schema name.

FormField

abstract

Class Signature

Base class for all form fields. Holds shared metadata, observable visibility and enabled flags, and the bridging methods to reactive_forms.

Layout width is not a FormField constructor argument. Explicit 12-column widths belong to FormRowItem.span in the runtime model, or to RowInstance spans in the visual editor.

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TextField

Class Signature

Schema: vyuh.formfield.text | Control: FormControl<String>

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NumberField

Class Signature

Schema: vyuh.formfield.number | Control: FormControl<num>

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SelectField

Class Signature

Schema: vyuh.formfield.select | Control: FormControl<String> or FormControl<List<String>>

SelectOption

final class SelectOption extends SelectOptionBase {
  final String value;
  final String title;
}

SelectOptionGroup

final class SelectOptionGroup extends SelectOptionBase {
  final String title;
  final List<SelectOption> options;
}

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BooleanField

Class Signature

Schema: vyuh.formfield.boolean | Control: FormControl<bool>

Layouts: SwitchBooleanFieldLayout (default), CheckboxBooleanFieldLayout

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DateTimeField

Class Signature

Schema: vyuh.formfield.datetime | Control: FormControl<DateTime>

enum SelectionType { date, time, dateTime }

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SliderField

Class Signature

Schema: vyuh.formfield.slider | Control: FormControl<double>

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RangeSliderField

Class Signature

Schema: vyuh.formfield.rangeSlider | Control: FormControl<RangeValues>

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PhoneNumberField

Class Signature

Schema: vyuh.formfield.phoneNumber | Control: FormControl<String>

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ImagePickerField

Class Signature

Schema: vyuh.formfield.imagePicker | Control: FormControl<List<XFile>?>

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FilePickerField

Class Signature

Schema: vyuh.formfield.filePicker | Control: FormControl<List<PlatformFile>?>

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FormulaField

Class Signature

Schema: vyuh.formfield.formula | Computed display only

enum FormulaResultType { number, dateTime, string }

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ReferenceField

Class Signature

Schema: vyuh.formfield.reference | Control: FormControl<String> or FormControl<List<String>>

Layouts: AutocompleteReferenceLayout, DropdownReferenceLayout, ChipsReferenceLayout, RadioReferenceLayout, CheckboxReferenceLayout, BarcodeScannerReferenceLayout

Next Steps

• Validations -- All validation types
• Rules -- Conditions and actions
• FormBuilder -- DSL API