📄 tanstack/form/latest/docs/reference/classes/fieldgroupapi

File: fieldgroupapi.md | Updated: 11/15/2025

Source: https://tanstack.com/form/latest/docs/reference/classes/fieldgroupapi



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FieldGroupApi

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Class: FieldGroupApi<TFormData, TFieldGroupData, TFields, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>
=====================================================================================================================================================================================================

Defined in: packages/form-core/src/FieldGroupApi.ts:112

Type Parameters
---------------

• TFormData

• TFieldGroupData

• TFields extends | DeepKeysOfType <TFormData, TFieldGroupData | null | undefined> | FieldsMap <TFormData, TFieldGroupData>

• TOnMount extends undefined | FormValidateOrFn<TFormData>

• TOnChange extends undefined | FormValidateOrFn<TFormData>

• TOnChangeAsync extends undefined | FormAsyncValidateOrFn<TFormData>

• TOnBlur extends undefined | FormValidateOrFn<TFormData>

• TOnBlurAsync extends undefined | FormAsyncValidateOrFn<TFormData>

• TOnSubmit extends undefined | FormValidateOrFn<TFormData>

• TOnSubmitAsync extends undefined | FormAsyncValidateOrFn<TFormData>

• TOnDynamic extends undefined | FormValidateOrFn<TFormData>

• TOnDynamicAsync extends undefined | FormAsyncValidateOrFn<TFormData>

• TOnServer extends undefined | FormAsyncValidateOrFn<TFormData>

• TSubmitMeta = never

Implements
----------

  • FieldManipulator<TFieldGroupData, TSubmitMeta>

Constructors
------------ ### new FieldGroupApi()

ts

new FieldGroupApi<TFormData, TFieldGroupData, TFields, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>(opts): FieldGroupApi<TFormData, TFieldGroupData, TFields, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>


new FieldGroupApi<TFormData, TFieldGroupData, TFields, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>(opts): FieldGroupApi<TFormData, TFieldGroupData, TFields, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>

Defined in: packages/form-core/src/FieldGroupApi.ts:238

Constructs a new FieldGroupApi instance with the given form options.

#### Parameters ##### opts

FieldGroupOptions <TFormData, TFieldGroupData, TFields, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>

#### Returns

FieldGroupApi <TFormData, TFieldGroupData, TFields, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>

Properties
---------- ### fieldsMap

ts

readonly fieldsMap: TFields;


readonly fieldsMap: TFields;

Defined in: packages/form-core/src/FieldGroupApi.ts:149

### form

ts

readonly form: FormApi<TFormData, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>;


readonly form: FormApi<TFormData, TOnMount, TOnChange, TOnChangeAsync, TOnBlur, TOnBlurAsync, TOnSubmit, TOnSubmitAsync, TOnDynamic, TOnDynamicAsync, TOnServer, TSubmitMeta>;

Defined in: packages/form-core/src/FieldGroupApi.ts:134

The form that called this field group.

### store

ts

store: Derived<FieldGroupState<TFieldGroupData>>;


store: Derived<FieldGroupState<TFieldGroupData>>;

Defined in: packages/form-core/src/FieldGroupApi.ts:229

Accessors
--------- ### state #### Get Signature

ts

get state(): FieldGroupState<TFieldGroupData>


get state(): FieldGroupState<TFieldGroupData>

Defined in: packages/form-core/src/FieldGroupApi.ts:231

##### Returns

FieldGroupState <TFieldGroupData>

Methods
------- ### clearFieldValues()

ts

clearFieldValues<TField>(field, opts?): void


clearFieldValues<TField>(field, opts?): void

Defined in: packages/form-core/src/FieldGroupApi.ts:510

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

##### opts?

UpdateMetaOptions

#### Returns

void

#### Implementation of

ts

FieldManipulator.clearFieldValues


FieldManipulator.clearFieldValues

### deleteField()

ts

deleteField<TField>(field): void


deleteField<TField>(field): void

Defined in: packages/form-core/src/FieldGroupApi.ts:397

Delete a field and its subfields.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

#### Returns

void

#### Implementation of

ts

FieldManipulator.deleteField


FieldManipulator.deleteField

### getFieldMeta()

ts

getFieldMeta<TField>(field): undefined | AnyFieldMeta


getFieldMeta<TField>(field): undefined | AnyFieldMeta

Defined in: packages/form-core/src/FieldGroupApi.ts:365

Gets the metadata of the specified field.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

#### Returns

undefined | AnyFieldMeta

#### Implementation of

ts

FieldManipulator.getFieldMeta


FieldManipulator.getFieldMeta

### getFieldValue()

ts

getFieldValue<TField>(field): DeepValue<TFieldGroupData, TField>


getFieldValue<TField>(field): DeepValue<TFieldGroupData, TField>

Defined in: packages/form-core/src/FieldGroupApi.ts:353

Gets the value of the specified field.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

#### Returns

DeepValue <TFieldGroupData, TField>

#### Implementation of

ts

FieldManipulator.getFieldValue


FieldManipulator.getFieldValue

### handleSubmit() #### Call Signature

ts

handleSubmit(): Promise<void>


handleSubmit(): Promise<void>

Defined in: packages/form-core/src/FieldGroupApi.ts:343

Handles the form submission, performs validation, and calls the appropriate onSubmit or onSubmitInvalid callbacks.

##### Returns

Promise<void>

##### Implementation of

ts

FieldManipulator.handleSubmit


FieldManipulator.handleSubmit

#### Call Signature

ts

handleSubmit(submitMeta): Promise<void>


handleSubmit(submitMeta): Promise<void>

Defined in: packages/form-core/src/FieldGroupApi.ts:344

Handles the form submission, performs validation, and calls the appropriate onSubmit or onSubmitInvalid callbacks.

##### Parameters ###### submitMeta

TSubmitMeta

##### Returns

Promise<void>

##### Implementation of

ts

FieldManipulator.handleSubmit


FieldManipulator.handleSubmit

### insertFieldValue()

ts

insertFieldValue<TField>(
   field, 
   index, 
   value, 
opts?): Promise<void>


insertFieldValue<TField>(
   field, 
   index, 
   value, 
opts?): Promise<void>

Defined in: packages/form-core/src/FieldGroupApi.ts:422

Insert a value into an array field at the specified index.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

##### index

number

##### value

DeepValue <TFieldGroupData, TField> extends any[] ? any[] & DeepValue <TFieldGroupData, TField>[number] : never

##### opts?

UpdateMetaOptions

#### Returns

Promise<void>

#### Implementation of

ts

FieldManipulator.insertFieldValue


FieldManipulator.insertFieldValue

### mount()

ts

mount(): () => void


mount(): () => void

Defined in: packages/form-core/src/FieldGroupApi.ts:307

Mounts the field group instance to listen to value changes.

#### Returns

Function

##### Returns

void

### moveFieldValues()

ts

moveFieldValues<TField>(
   field, 
   index1, 
   index2, 
   opts?): void


moveFieldValues<TField>(
   field, 
   index1, 
   index2, 
   opts?): void

Defined in: packages/form-core/src/FieldGroupApi.ts:496

Moves the value at the first specified index to the second specified index within an array field.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

##### index1

number

##### index2

number

##### opts?

UpdateMetaOptions

#### Returns

void

#### Implementation of

ts

FieldManipulator.moveFieldValues


FieldManipulator.moveFieldValues

### pushFieldValue()

ts

pushFieldValue<TField>(
   field, 
   value, 
   opts?): void


pushFieldValue<TField>(
   field, 
   value, 
   opts?): void

Defined in: packages/form-core/src/FieldGroupApi.ts:404

Pushes a value into an array field.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

##### value

DeepValue <TFieldGroupData, TField> extends any[] ? any[] & DeepValue <TFieldGroupData, TField>[number] : never

##### opts?

UpdateMetaOptions

#### Returns

void

#### Implementation of

ts

FieldManipulator.pushFieldValue


FieldManipulator.pushFieldValue

### removeFieldValue()

ts

removeFieldValue<TField>(
   field, 
   index, 
opts?): Promise<void>


removeFieldValue<TField>(
   field, 
   index, 
opts?): Promise<void>

Defined in: packages/form-core/src/FieldGroupApi.ts:466

Removes a value from an array field at the specified index.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

##### index

number

##### opts?

UpdateMetaOptions

#### Returns

Promise<void>

#### Implementation of

ts

FieldManipulator.removeFieldValue


FieldManipulator.removeFieldValue

### replaceFieldValue()

ts

replaceFieldValue<TField>(
   field, 
   index, 
   value, 
opts?): Promise<void>


replaceFieldValue<TField>(
   field, 
   index, 
   value, 
opts?): Promise<void>

Defined in: packages/form-core/src/FieldGroupApi.ts:444

Replaces a value into an array field at the specified index.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

##### index

number

##### value

DeepValue <TFieldGroupData, TField> extends any[] ? any[] & DeepValue <TFieldGroupData, TField>[number] : never

##### opts?

UpdateMetaOptions

#### Returns

Promise<void>

#### Implementation of

ts

FieldManipulator.replaceFieldValue


FieldManipulator.replaceFieldValue

### resetField()

ts

resetField<TField>(field): void


resetField<TField>(field): void

Defined in: packages/form-core/src/FieldGroupApi.ts:520

Resets the field value and meta to default state

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

#### Returns

void

#### Implementation of

ts

FieldManipulator.resetField


FieldManipulator.resetField

### setFieldMeta()

ts

setFieldMeta<TField>(field, updater): void


setFieldMeta<TField>(field, updater): void

Defined in: packages/form-core/src/FieldGroupApi.ts:372

Updates the metadata of the specified field.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

##### updater

Updater <AnyFieldMetaBase >

#### Returns

void

#### Implementation of

ts

FieldManipulator.setFieldMeta


FieldManipulator.setFieldMeta

### setFieldValue()

ts

setFieldValue<TField>(
   field, 
   updater, 
   opts?): void


setFieldValue<TField>(
   field, 
   updater, 
   opts?): void

Defined in: packages/form-core/src/FieldGroupApi.ts:382

Sets the value of the specified field and optionally updates the touched state.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

##### updater

Updater <DeepValue <TFieldGroupData, TField>>

##### opts?

UpdateMetaOptions

#### Returns

void

#### Implementation of

ts

FieldManipulator.setFieldValue


FieldManipulator.setFieldValue

### swapFieldValues()

ts

swapFieldValues<TField>(
   field, 
   index1, 
   index2, 
   opts?): void


swapFieldValues<TField>(
   field, 
   index1, 
   index2, 
   opts?): void

Defined in: packages/form-core/src/FieldGroupApi.ts:479

Swaps the values at the specified indices within an array field.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

##### index1

number

##### index2

number

##### opts?

UpdateMetaOptions

#### Returns

void

#### Implementation of

ts

FieldManipulator.swapFieldValues


FieldManipulator.swapFieldValues

### validateAllFields()

ts

validateAllFields(cause): Promise<unknown[]>


validateAllFields(cause): Promise<unknown[]>

Defined in: packages/form-core/src/FieldGroupApi.ts:524

#### Parameters ##### cause

ValidationCause

#### Returns

Promise<unknown[]>

#### Implementation of

ts

FieldManipulator.validateAllFields


FieldManipulator.validateAllFields

### validateArrayFieldsStartingFrom()

ts

validateArrayFieldsStartingFrom<TField>(
   field, 
   index, 
cause): Promise<unknown[]>


validateArrayFieldsStartingFrom<TField>(
   field, 
   index, 
cause): Promise<unknown[]>

Defined in: packages/form-core/src/FieldGroupApi.ts:316

Validates the children of a specified array in the form starting from a given index until the end using the correct handlers for a given validation type.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

##### index

number

##### cause

ValidationCause

#### Returns

Promise<unknown[]>

#### Implementation of

ts

FieldManipulator.validateArrayFieldsStartingFrom


FieldManipulator.validateArrayFieldsStartingFrom

### validateField()

ts

validateField<TField>(field, cause): unknown[] | Promise<unknown[]>


validateField<TField>(field, cause): unknown[] | Promise<unknown[]>

Defined in: packages/form-core/src/FieldGroupApi.ts:333

Validates a specified field in the form using the correct handlers for a given validation type.

#### Type Parameters

• TField extends string

#### Parameters ##### field

TField

##### cause

ValidationCause

#### Returns

unknown[] | Promise<unknown[]>

#### Implementation of

ts

FieldManipulator.validateField


FieldManipulator.validateField

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