## Pagination

If you have too much data to display in one page, use pagination.

### Basic usage

:::demo Set `layout` with different pagination elements you wish to display separated with a comma. Pagination elements are: `prev` (a button navigating to the previous page), `next` (a button navigating to the next page), `pager` (page list), `jumper` (a jump-to input), `total` (total item count), `size` (a select to determine page size) and `->`(every element after this symbol will be pulled to the right).

```html
<template>
  <div class="block">
    <span class="demonstration">When you have few pages</span>
    <el-pagination layout="prev, pager, next" :total="50"> </el-pagination>
  </div>
  <div class="block">
    <span class="demonstration">When you have more than 7 pages</span>
    <el-pagination layout="prev, pager, next" :total="1000"> </el-pagination>
  </div>
</template>
```

:::

### Number of pagers

:::demo By default, Pagination collapses extra pager buttons when it has more than 7 pages. This can be configured with the `pager-count` attribute.

```html
<template>
  <el-pagination
    :page-size="20"
    :pager-count="11"
    layout="prev, pager, next"
    :total="1000"
  >
  </el-pagination>
</template>
```

:::

### Buttons with background color

:::demo Set the `background` attribute and the buttons will have a background color.

```html
<template>
  <el-pagination background layout="prev, pager, next" :total="1000">
  </el-pagination>
</template>
```

:::

### Small Pagination

Use small pagination in the case of limited space.

:::demo Just set the `small` attribute to `true` and the Pagination becomes smaller.

```html
<template>
  <el-pagination small layout="prev, pager, next" :total="50"> </el-pagination>
</template>
```

:::

### More elements

Add more modules based on your scenario.

:::demo This example is a complete use case. It uses `size-change` and `current-change` event to handle page size changes and current page changes. `page-sizes` accepts an array of integers, each of which represents a different page size in the `sizes` select options, e.g. `[100, 200, 300, 400]` indicates that the select will have four options: 100, 200, 300 or 400 items per page.

```html
<template>
  <div class="block">
    <span class="demonstration">Total item count</span>
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      v-model:currentPage="currentPage1"
      :page-size="100"
      layout="total, prev, pager, next"
      :total="1000"
    >
    </el-pagination>
  </div>
  <div class="block">
    <span class="demonstration">Change page size</span>
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      v-model:currentPage="currentPage2"
      :page-sizes="[100, 200, 300, 400]"
      :page-size="100"
      layout="sizes, prev, pager, next"
      :total="1000"
    >
    </el-pagination>
  </div>
  <div class="block">
    <span class="demonstration">Jump to</span>
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      v-model:currentPage="currentPage3"
      :page-size="100"
      layout="prev, pager, next, jumper"
      :total="1000"
    >
    </el-pagination>
  </div>
  <div class="block">
    <span class="demonstration">All combined</span>
    <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      v-model:currentPage="currentPage4"
      :page-sizes="[100, 200, 300, 400]"
      :page-size="100"
      layout="total, sizes, prev, pager, next, jumper"
      :total="400"
    >
    </el-pagination>
  </div>
</template>
<script>
  export default {
    methods: {
      handleSizeChange(val) {
        console.log(`${val} items per page`)
      },
      handleCurrentChange(val) {
        console.log(`current page: ${val}`)
      },
    },
    data() {
      return {
        currentPage1: 5,
        currentPage2: 5,
        currentPage3: 5,
        currentPage4: 4,
      }
    },
  }
</script>
<!--
<setup>

  import { defineComponent, ref } from 'vue';

  export default defineComponent({
    setup() {
      const handleSizeChange = (val) => {
        console.log(`${val} items per page`);
      };
      const handleCurrentChange = (val) => {
        console.log(`current page: ${val}`);
      };

      return {
        currentPage1: ref(5),
        currentPage2: ref(5),
        currentPage3: ref(5),
        currentPage4: ref(4),
        handleSizeChange,
        handleCurrentChange,
      };
    },
  });

</setup>
-->
```

:::

### Hide pagination when there is only one page

When there is only one page, hide the pagination by setting the `hide-on-single-page` attribute.

:::demo

```html
<template>
  <div>
    <el-switch v-model="value"> </el-switch>
    <el-pagination
      :hide-on-single-page="value"
      :total="5"
      layout="prev, pager, next"
    >
    </el-pagination>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        value: false,
      }
    },
  }
</script>
<!--
<setup>

  import { defineComponent, ref } from 'vue';

  export default defineComponent({
    setup() {
      return {
        value: ref(false),
      };
    },
  });

</setup>
-->
```

:::

### Attributes

| Attribute            | Description                                                                                                                     | Type     | Accepted Values                                                          | Default                                |
| -------------------- | ------------------------------------------------------------------------------------------------------------------------------- | -------- | ------------------------------------------------------------------------ | -------------------------------------- |
| small                | whether to use small pagination                                                                                                 | boolean  | —                                                                        | false                                  |
| background           | whether the buttons have a background color                                                                                     | boolean  | —                                                                        | false                                  |
| page-size            | item count of each page, supports the v-model bidirectional binding                                                             | number   | —                                                                        | 10                                     |
| default-page-size    | default initial value of page size                                                                                              | number   | -                                                                        | -                                      |
| total                | total item count                                                                                                                | number   | —                                                                        | —                                      |
| page-count           | total page count. Set either `total` or `page-count` and pages will be displayed; if you need `page-sizes`, `total` is required | number   | —                                                                        | —                                      |
| pager-count          | number of pagers. Pagination collapses when the total page count exceeds this value                                             | number   | odd number between 5 and 21                                              | 7                                      |
| current-page         | current page number, supports the v-model bidirectional binding                                                                 | number   | —                                                                        | 1                                      |
| default-current-page | default initial value of current-page                                                                                           | number   | -                                                                        | -                                      |
| layout               | layout of Pagination, elements separated with a comma                                                                           | string   | `sizes` / `prev` / `pager` / `next` / `jumper` / `->` / `total` / `slot` | 'prev, pager, next, jumper, ->, total' |
| page-sizes           | options of item count per page                                                                                                  | number[] | —                                                                        | [10, 20, 30, 40, 50, 100]              |
| popper-class         | custom class name for the page size Select's dropdown                                                                           | string   | —                                                                        | —                                      |
| prev-text            | text for the prev button                                                                                                        | string   | —                                                                        | —                                      |
| next-text            | text for the next button                                                                                                        | string   | —                                                                        | —                                      |
| disabled             | whether Pagination is disabled                                                                                                  | boolean  | —                                                                        | false                                  |
| hide-on-single-page  | whether to hide when there's only one page                                                                                      | boolean  | —                                                                        | -                                      |

:::warning
We'll detect some deprecated usages, if your pagination don't appeared or worked as expected, please check rules below:

- You have to define one of `total` and `page-count`, otherwise we can't determine count of total pages.When both defined, `page-count` taken as priority.
- If `current-page` is defined, you have to listen `current-page` change, by also define `@update:current-page`, otherwise pagination didn't work.
- If `page-size` is defined while page size selector displayed(`sizes` included in `layout`), you have to listen `page-size` change as well, by define `@update:page-size`, otherwise change of page size didn't work.
  :::

### Events

| Event Name     | Description                                                       | Parameters           |
| -------------- | ----------------------------------------------------------------- | -------------------- |
| size-change    | triggers when `page-size` changes                                 | the new page size    |
| current-change | triggers when `current-page` changes                              | the new current page |
| prev-click     | triggers when the prev button is clicked and current page changes | the new current page |
| next-click     | triggers when the next button is clicked and current page changes | the new current page |

:::warning
Events above are not recommended(but are still supported for compatible reason), better chioce is to use the two-way data binding by `v-model`.
:::

### Slots

| Name | Description                                                         |
| ---- | ------------------------------------------------------------------- |
| —    | custom content. To use this, you need to declare `slot` in `layout` |