# SimpleGrid

- Page: https://jiguang132.com/resources/mantine/docs/simple-grid
- Resource: Mantine Core (https://jiguang132.com/resources/mantine.md)
- All guides: https://jiguang132.com/resources/mantine/docs.md

Install: `npm install @mantine/core@9.7.1 @mantine/hooks@9.7.1`

## Version and compatibility

Pinned Mantine Core 9.7.1 requires React and React DOM `^19.2.0` and matching `@mantine/hooks@9.7.1`, from the installed npm package's peerDependencies. Do not force it into React 18 or another incompatible version. Explain upgrade impact and agree on a plan with the project owner; do not hide conflicts with --force/--legacy-peer-deps. The native Provider enables `theme.respectReducedMotion` and uses `forceColorScheme` for light/dark.

## Use case

Create equal-width responsive columns.

## Native props used by this example

These props are extracted from the local typechecked JSX and grouped by their owning native component. This is not an exhaustive prop list; see pinned source signatures and inheritance below.

| Component prop | Explanation |
| --- | --- |
| `SimpleGrid.cols` | Column count or responsive column configuration. |

## Interaction and state checks

Current scenarios: Default. Check actual behavior after selecting supported disabled/error/read-only scenarios; components without those native states do not receive invented universal props. Verify keyboard focus and exits, then connect changed values through the native callback signature.

## Business integration boundary

Demo content/state is local, without server persistence, authorization or fetching. A static display component is not a completed business workflow.

## Host setup

Install pinned @mantine/core and @mantine/hooks, import @mantine/core/styles.css at the entry and use MantineProvider. The example's theme/variant are JGuang-authored host props, not universal native component APIs; forceColorScheme synchronizes the app theme. Native implementation source is a reading reference: use npm exports rather than copying internal engines. This batch covers Core, not dates/charts/forms extension packages. Detailed upstream prose remains English.


## Runnable usage

```tsx
import { useState } from 'react';
import * as M from '@mantine/core';
import '@mantine/core/styles.css';


function ComponentPreview({ variant = 'Default' }: { variant?: string }) {
const content = <M.Text>Build something beautiful / 构建美好的界面</M.Text>;
return <M.SimpleGrid cols={2}>{content}{content}</M.SimpleGrid>;
}
export default function Example({ variant = 'Default', theme = 'light' }: { variant?: string; theme?: 'light' | 'dark' }) {
return <M.MantineProvider forceColorScheme={theme} theme={{ respectReducedMotion: true }}><ComponentPreview variant={variant} /></M.MantineProvider>;
}

```


## Preview states

Default

The example uses the native Mantine API. For supported input demos, change the local variant to Disabled, Invalid or Read only; these are example labels, not new component props. Keep the documented data, controlled values, stores and compound children when adapting the example.



## Usage

`SimpleGrid` is a responsive grid system with equal-width columns.
It uses CSS grid layout. If you need to set different widths for columns, use
[Grid](/core/grid) component instead.



## spacing and verticalSpacing props

The `spacing` prop controls horizontal spacing between columns. By default, it is also used
for vertical spacing between rows. If you want different vertical spacing, set the
`verticalSpacing` prop explicitly:

```tsx
import { SimpleGrid } from '@mantine/core';

// `spacing` is used for both horizontal and vertical spacing
const Spacing = () => <SimpleGrid spacing="xl" />;

// `spacing` is used for horizontal spacing, `verticalSpacing` for vertical
const VerticalSpacing = () => (
  <SimpleGrid spacing="xl" verticalSpacing="lg" />
);
```

## Responsive props

`cols`, `spacing` and `verticalSpacing` props support object notation for responsive values,
it works the same way as [style props](/styles/style-props): the object may have `base`, `xs`,
`sm`, `md`, `lg` and `xl` key, and values from those keys will be applied according to current
viewport width.

In the following example, `cols={{ base: 1, sm: 2, lg: 5 }}` means:

- 1 column if viewport width is less than `sm` breakpoint
- 2 columns if viewport width is between `sm` and `lg` breakpoints
- 5 columns if viewport width is greater than `lg` breakpoint

Same logic applies to `spacing` and `verticalSpacing` props.



## Container queries

To use [container queries](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_containment/Container_queries)
instead of media queries, set `type="container"`. With container queries, grid columns and spacing
will be adjusted based on the container width, not the viewport width.

Note that, when using container queries, `cols`, `spacing` and `verticalSpacing` props cannot
reference `theme.breakpoints` values in keys. It is required to use exact px or em values.

To see how the grid changes, resize the root element of the demo
with the resize handle located at the bottom right corner of the demo:



## Auto-fill columns

Set the `minColWidth` prop to use CSS Grid `auto-fill` to automatically adjust the number
of columns based on available space and minimum column width. When `minColWidth` is set,
the `cols` prop is ignored.



## auto-fill vs auto-fit

By default, `minColWidth` uses `auto-fill` behavior. You can change it to `auto-fit` with the
`autoFlow` prop. The difference between the two:

- `auto-fill` creates as many tracks as possible without overflowing the container, leaving empty tracks if items don't fill the row
- `auto-fit` works the same way but collapses empty tracks, allowing items to stretch and fill the remaining space



## Auto rows

Set the `autoRows` prop to control the size of implicitly created grid rows.
This is useful when you need all rows to have equal height or a minimum height.



## Browser support

`SimpleGrid` uses [CSS Grid Layout](https://caniuse.com/css-grid), it is supported in all modern browsers.
If you need to support older browsers, use [Grid](/core/grid) (flexbox based) component instead.

When `type="container"` is set, `SimpleGrid` uses [container queries](https://caniuse.com/css-container-queries).
Since February 2023, container queries are supported in all modern browsers. If you need to support older browsers,
do not use container queries option.


## Source-backed parameter reference

Implementation signatures and types are generated from the pinned local source. Optional props, native inherited types, union branches and never exclusions are preserved. A forwardRef implementation's ref is a React reference, not an additional business prop.


```ts
SimpleGrid(_props)
```



```ts
export type SimpleGridStylesNames = 'root' | 'container';

export interface SimpleGridProps
  extends BoxProps, StylesApiProps<SimpleGridFactory>, ElementProps<'div'> {
  /** Number of columns @default 1 */
  cols?: StyleProp<number>;

  /** Spacing between columns @default 'md' */
  spacing?: StyleProp<MantineSpacing>;

  /** Spacing between rows. When not set, falls back to spacing value @default undefined */
  verticalSpacing?: StyleProp<MantineSpacing>;

  /** Determines type of queries that are used for responsive styles @default 'media' */
  type?: 'media' | 'container';

  /** Minimum column width when using auto-fit/auto-fill. When set, cols prop is ignored */
  minColWidth?: string | number;

  /** Grid repeat type when minColWidth is set @default 'auto-fill' */
  autoFlow?: 'auto-fit' | 'auto-fill';

  /** Sets the size of implicitly created grid rows */
  autoRows?: string;
}

export type SimpleGridFactory = Factory<{
  props: SimpleGridProps;
  ref: HTMLDivElement;
  stylesNames: SimpleGridStylesNames;
}>;

export type Mod = Record<string, any> | string;

export type BoxMod = Mod | Mod[] | BoxMod[];

export interface BoxProps extends MantineStyleProps {
  /** Class added to the root element, if applicable */
  className?: string | undefined;

  /** Inline style added to root component element, can subscribe to theme defined on MantineProvider */
  style?: MantineStyleProp;

  /** CSS variables defined on root component element */
  __vars?: CssVarsProp;

  /** `size` property passed down the HTML element */
  __size?: string;

  /** Breakpoint above which the component is hidden with `display: none` */
  hiddenFrom?: MantineBreakpoint;

  /** Breakpoint below which the component is hidden with `display: none` */
  visibleFrom?: MantineBreakpoint;

  /** Determines whether component should be hidden in light color scheme with `display: none` */
  lightHidden?: boolean;

  /** Determines whether component should be hidden in dark color scheme with `display: none` */
  darkHidden?: boolean;

  /** Element modifiers transformed into `data-` attributes, for example, `{ 'data-size': 'xl' }`, falsy values are removed */
  mod?: BoxMod;
}

export type ElementProps<
  ElementType extends React.ElementType,
  PropsToOmit extends string = never,
> = Omit<React.ComponentProps<ElementType>, 'style' | PropsToOmit>;

export interface CSSProperties extends React.CSSProperties {
  [key: string]: any;
}

type MantineStyle = CSSProperties | ((theme: MantineTheme) => CSSProperties);

export type MantineStyleProp = MantineStyle | MantineStyle[] | MantineStyleProp[] | undefined;

export type CssVariable = `--${string}`;

export type CssVariables<Variable extends string = CssVariable> = Partial<Record<Variable, string>>;

export type CssVars<Variable extends string = CssVariable> =
  | CssVariables<Variable>
  | ((theme: MantineTheme) => CssVariables<Variable>)
  | CssVars<Variable>[];

export type CssVarsProp<Variable extends string = CssVariable> =
  | CssVars<Variable>
  | CssVars<Variable>[];
```


### Native and external types

External types remain defined by React or native dependencies, not manually expanded into guessed props. The installed version's TypeScript definitions are authoritative.


```ts
Factory<{
  props: SimpleGridProps;
  ref: HTMLDivElement;
  stylesNames: SimpleGridStylesNames;
}>
MantineStyleProps
React.CSSProperties
MantineTheme
Partial<Record<Variable, string>>
Record<Variable, string>
Variable
MantineBreakpoint
Record<string, any>
StylesApiProps<SimpleGridFactory>
React.ElementType
Omit<React.ComponentProps<ElementType>, 'style' | PropsToOmit>
React.ComponentProps<ElementType>
ElementType
PropsToOmit
StyleProp<number>
StyleProp<MantineSpacing>
MantineSpacing
HTMLDivElement
```

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