---
title: FileButton
description: "`FileButton`は、ユーザーがファイルを選択するために使用されるボタンのコンポーネントです。"
links:
  - style: https://github.com/yamada-ui/yamada-ui/tree/main/packages/react/src/components/file-button/file-button.style.ts
  - source: https://github.com/yamada-ui/yamada-ui/tree/main/packages/react/src/components/file-button
  - storybook: https://yamada-ui.github.io/yamada-ui?path=/story/components-filebutton--basic
---

```tsx
<Wrap gap="md">
  <FileButton>Upload</FileButton>

  <FileButton
    as={IconButton}
    aria-label="Upload file"
    icon={<PlusIcon fontSize="2xl" />}
  />
</Wrap>
```

## 使い方

```tsx
import { FileButton } from "@yamada-ui/react"
```

```tsx
import { FileButton } from "@/components/ui"
```

```tsx
import { FileButton } from "@workspaces/ui"
```

```tsx
<FileButton />
```

### バリアントを変更する

```tsx
<Wrap gap="md">
  <For each={["solid", "subtle", "surface", "outline", "ghost"]}>
    {(variant, index) => (
      <FileButton variant={variant} key={index}>
        {toTitleCase(variant)}
      </FileButton>
    )}
  </For>
</Wrap>
```

### サイズを変更する

```tsx
<Wrap gap="md">
  <For each={["xs", "sm", "md", "lg", "xl"]}>
    {(size, index) => (
      <FileButton size={size} key={index} minW="24">
        {toTitleCase(size)}
      </FileButton>
    )}
  </For>
</Wrap>
```

### カラースキームを変更する

```tsx
<Wrap gap="md">
  <For each={["success", "warning"]}>
    {(colorScheme, index) => (
      <FileButton colorScheme={colorScheme} key={index}>
        {toTitleCase(colorScheme)}
      </FileButton>
    )}
  </For>
</Wrap>
```

### 複数選択を許容する

複数選択を許容する場合は、`multiple`を`true`に設定します。

```tsx
<FileButton multiple>Upload</FileButton>
```

### 拡張子を指定する

拡張子を指定する場合は、`accept`に文字列(タイプ)を設定します。

```tsx
<FileButton accept="image/png,image/jpeg">Upload</FileButton>
```

### 無効にする

無効にする場合は、`disabled`を`true`に設定します。

```tsx
<VStack>
  <FileButton disabled alignSelf="flex-start">
    Upload
  </FileButton>

  <Field.Root
    disabled
    helperMessage="Please select a file to upload."
    label="Upload file"
  >
    <FileButton justifySelf="flex-start">Upload</FileButton>
  </Field.Root>
</VStack>
```

### 読み取り専用にする

読み取り専用にする場合は、`readOnly`を`true`に設定します。

```tsx
<VStack>
  <FileButton readOnly alignSelf="flex-start">
    Upload
  </FileButton>

  <Field.Root
    readOnly
    helperMessage="Please select a file to upload."
    label="Upload file"
  >
    <FileButton justifySelf="flex-start">Upload</FileButton>
  </Field.Root>
</VStack>
```

### 無効な入力にする

無効な入力にする場合は、`invalid`を`true`に設定します。

```tsx
<VStack>
  <FileButton invalid alignSelf="flex-start">
    Upload
  </FileButton>

  <Field.Root
    invalid
    helperMessage="Please select a file to upload."
    label="Upload file"
  >
    <FileButton justifySelf="flex-start">Upload</FileButton>
  </Field.Root>
</VStack>
```

ボーダーの色を変更する場合は、`errorBorderColor`に値を設定します。

```tsx
<FileButton invalid errorBorderColor="warning">
  Upload
</FileButton>
```

### リセットする

値をリセットする場合は、`resetRef`に`ref`を設定します。設定された`ref`にコールバック関数が付与されるので、それを実行します。

```tsx
const [files, onChange] = useState<File[] | undefined>(undefined)
const resetRef = useRef<() => void>(null)
const onReset = () => {
  onChange(undefined)
  resetRef.current?.()
}

return (
  <VStack>
    <Text>files: {files?.length ?? 0}</Text>

    <HStack>
      <FileButton multiple resetRef={resetRef} onChange={onChange}>
        Upload
      </FileButton>

      <Button onClick={onReset} variant="subtle">
        Reset
      </Button>
    </HStack>
  </VStack>
)
```

## Props

| Prop               | Default    | Type                                                                                                                                                              | Description                                                           |
| ------------------ | ---------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------- |
| `as`               | -          | `As`                                                                                                                                                              | The HTML element to render.                                           |
| `asChild`          | -          | `boolean`                                                                                                                                                         | Merges its props onto its immediate child.                            |
| `css`              | -          | `CSSObject \| CSSObject[]`                                                                                                                                        | The CSS object.                                                       |
| `colorScheme`      | -          | `"amber" \| "black" \| "blackAlpha" \| "blue" \| "cyan" \| "danger" \| "emerald" \| "error" \| "flashy" \| "fuchsia" ...`                                         | Set color scheme variables.                                           |
| `size`             | -          | `"2xl" \| "lg" \| "md" \| "sm" \| "xl" \| "xs"`                                                                                                                   | The size of the component.                                            |
| `variant`          | `"solid"`  | `"ghost" \| "outline" \| "solid" \| "subtle" \| "surface" ...`                                                                                                    | The variant of the component.                                         |
| `active`           | `false`    | `boolean`                                                                                                                                                         | If `true`, the button is represented as active.                       |
| `defaultValue`     | -          | `File[]`                                                                                                                                                          | The initial value of the file input.                                  |
| `disabled`         | `false`    | `boolean`                                                                                                                                                         | If `true`, the button is disabled.                                    |
| `disableRipple`    | `false`    | `boolean`                                                                                                                                                         | If `true`, disable ripple effects when pressing a element.            |
| `endIcon`          | -          | `string \| number \| bigint \| boolean \| ReactElement<unknown, string \| JSXElementConstructor<any>> \| Iterable<ReactNode> \| ReactPortal \| Promise<...>`      | The icon to display at the end side of the button.                    |
| `errorBorderColor` | -          | `"-moz-initial" \| "ActiveBorder" \| "ActiveCaption" \| "aliceblue" \| "amber.100" \| "amber.200" \| "amber.300" \| "amber.400" \| "amber.50" \| "amber.500" ...` | The border color when the input is invalid.                           |
| `fullRounded`      | `false`    | `boolean`                                                                                                                                                         | If `true`, the button is full rounded. Else, it'll be slightly round. |
| `iconProps`        | -          | `ButtonIconProps`                                                                                                                                                 | The props of the icon element.                                        |
| `invalid`          | `false`    | `boolean`                                                                                                                                                         | If `true`, the field will be invalid.                                 |
| `loading`          | `false`    | `boolean`                                                                                                                                                         | If `true`, the loading state of the button is represented.            |
| `loadingIcon`      | `"oval"`   | `string \| number \| bigint \| boolean \| ReactElement<unknown, string \| JSXElementConstructor<any>> \| Iterable<ReactNode> \| ReactPortal \| Promise<...>`      | The icon to display when the button is loading.                       |
| `loadingMessage`   | -          | `string \| number \| bigint \| boolean \| ReactElement<unknown, string \| JSXElementConstructor<any>> \| Iterable<ReactNode> \| ReactPortal \| Promise<...>`      | The message to display when the button is loading.                    |
| `loadingPlacement` | `"start"`  | `"end" \| "start"`                                                                                                                                                | The placement of the loading indicator. Accepts `start` or `end`.     |
| `loadingProps`     | -          | `ButtonLoadingProps`                                                                                                                                              | The props of the loading icon element.                                |
| `onChange`         | -          | `(files: File[] \| undefined) => void`                                                                                                                            | Function to be called when a file change event occurs.                |
| `readOnly`         | `false`    | `boolean`                                                                                                                                                         | If `true`, the field will be readonly.                                |
| `required`         | `false`    | `boolean`                                                                                                                                                         | If `true`, the field will be required.                                |
| `resetRef`         | -          | `RefObject<(() => void) \| null>`                                                                                                                                 | Ref to a reset function.                                              |
| `startIcon`        | -          | `string \| number \| bigint \| boolean \| ReactElement<unknown, string \| JSXElementConstructor<any>> \| Iterable<ReactNode> \| ReactPortal \| Promise<...>`      | The icon to display at the start side of the button.                  |
| `type`             | `"button"` | `"button" \| "reset" \| "submit"`                                                                                                                                 | The type of button. Accepts `button`, `reset`, or `submit`.           |
| `value`            | -          | `File[]`                                                                                                                                                          | The value of the file input.                                          |

## アクセシビリティ

現在、v2の移行に伴い、このセクションは更新中です。