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d334142d0d
* refactor(pagination): pagination internal logic refactored * improvement(pagination): improve pr by better naming and misc
256 lines
8.1 KiB
Markdown
256 lines
8.1 KiB
Markdown
## Pagination
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If you have too much data to display in one page, use pagination.
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### Basic usage
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:::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).
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```html
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<div class="block">
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<span class="demonstration">When you have few pages</span>
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<el-pagination
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layout="prev, pager, next"
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:total="50">
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</el-pagination>
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</div>
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<div class="block">
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<span class="demonstration">When you have more than 7 pages</span>
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<el-pagination
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layout="prev, pager, next"
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:total="1000">
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</el-pagination>
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</div>
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```
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:::
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### Number of pagers
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:::demo By default, Pagination collapses extra pager buttons when it has more than 7 pages. This can be configured with the `pager-count` attribute.
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```html
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<el-pagination
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:page-size="20"
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:pager-count="11"
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layout="prev, pager, next"
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:total="1000">
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</el-pagination>
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```
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:::
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### Buttons with background color
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:::demo Set the `background` attribute and the buttons will have a background color.
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```html
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<el-pagination
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background
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layout="prev, pager, next"
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:total="1000">
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</el-pagination>
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```
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:::
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### Small Pagination
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Use small pagination in the case of limited space.
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:::demo Just set the `small` attribute to `true` and the Pagination becomes smaller.
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```html
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<el-pagination
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small
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layout="prev, pager, next"
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:total="50">
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</el-pagination>
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```
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:::
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### More elements
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Add more modules based on your scenario.
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:::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.
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```html
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<template>
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<div class="block">
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<span class="demonstration">Total item count</span>
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<el-pagination
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@size-change="handleSizeChange"
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@current-change="handleCurrentChange"
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v-model:currentPage="currentPage1"
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:page-size="100"
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layout="total, prev, pager, next"
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:total="1000">
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</el-pagination>
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</div>
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<div class="block">
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<span class="demonstration">Change page size</span>
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<el-pagination
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@size-change="handleSizeChange"
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@current-change="handleCurrentChange"
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v-model:currentPage="currentPage2"
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:page-sizes="[100, 200, 300, 400]"
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:page-size="100"
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layout="sizes, prev, pager, next"
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:total="1000">
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</el-pagination>
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</div>
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<div class="block">
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<span class="demonstration">Jump to</span>
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<el-pagination
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@size-change="handleSizeChange"
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@current-change="handleCurrentChange"
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v-model:currentPage="currentPage3"
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:page-size="100"
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layout="prev, pager, next, jumper"
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:total="1000">
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</el-pagination>
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</div>
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<div class="block">
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<span class="demonstration">All combined</span>
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<el-pagination
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@size-change="handleSizeChange"
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@current-change="handleCurrentChange"
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v-model:currentPage="currentPage4"
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:page-sizes="[100, 200, 300, 400]"
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:page-size="100"
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layout="total, sizes, prev, pager, next, jumper"
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:total="400">
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</el-pagination>
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</div>
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</template>
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<script>
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export default {
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methods: {
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handleSizeChange(val) {
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console.log(`${val} items per page`);
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},
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handleCurrentChange(val) {
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console.log(`current page: ${val}`);
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}
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},
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data() {
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return {
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currentPage1: 5,
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currentPage2: 5,
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currentPage3: 5,
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currentPage4: 4
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};
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}
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}
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</script>
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<!--
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<setup>
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import { defineComponent, ref } from 'vue';
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export default defineComponent({
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setup() {
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const handleSizeChange = (val) => {
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console.log(`${val} items per page`);
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};
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const handleCurrentChange = (val) => {
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console.log(`current page: ${val}`);
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};
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return {
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currentPage1: ref(5),
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currentPage2: ref(5),
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currentPage3: ref(5),
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currentPage4: ref(4),
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handleSizeChange,
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handleCurrentChange,
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};
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},
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});
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</setup>
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-->
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```
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:::
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### Hide pagination when there is only one page
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When there is only one page, hide the pagination by setting the `hide-on-single-page` attribute.
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:::demo
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```html
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<div>
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<el-switch v-model="value">
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</el-switch>
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<el-pagination
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:hide-on-single-page="value"
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:total="5"
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layout="prev, pager, next">
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</el-pagination>
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</div>
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<script>
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export default {
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data() {
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return {
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value: false
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}
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}
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}
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</script>
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<!--
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<setup>
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import { defineComponent, ref } from 'vue';
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export default defineComponent({
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setup() {
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return {
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value: ref(false),
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};
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},
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});
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</setup>
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-->
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```
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:::
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### Attributes
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| Attribute | Description | Type | Accepted Values | Default |
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|--------------------|----------------------------------------------------------|-------------------|-------------|--------|
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| small | whether to use small pagination | boolean | — | false |
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| background | whether the buttons have a background color | boolean | — | false |
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| page-size | item count of each page, supports the v-model bidirectional binding | number | — | 10 |
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| default-page-size | default initial value of page size | number | - | - |
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| total | total item count | number | — | — |
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| 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 | — | — |
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| pager-count | number of pagers. Pagination collapses when the total page count exceeds this value | number | odd number between 5 and 21 | 7 |
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| current-page | current page number, supports the v-model bidirectional binding | number | — | 1 |
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| default-current-page | default initial value of current-page | number | - | - |
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| layout | layout of Pagination, elements separated with a comma | string | `sizes` / `prev` / `pager` / `next` / `jumper` / `->` / `total` / `slot` | 'prev, pager, next, jumper, ->, total' |
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| page-sizes | options of item count per page | number[] | — | [10, 20, 30, 40, 50, 100] |
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| popper-class | custom class name for the page size Select's dropdown | string | — | — |
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| prev-text | text for the prev button | string | — | — |
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| next-text | text for the next button | string | — | — |
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| disabled | whether Pagination is disabled | boolean | — | false |
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| hide-on-single-page | whether to hide when there's only one page | boolean | — | - |
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:::warning
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We'll detect some deprecated usages, if your pagination don't appeared or worked as expected, please check rules below:
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- 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.
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- If `current-page` is defined, you have to listen `current-page` change, by also define `@update:current-page`, otherwise pagination didn't work.
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- 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.
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:::
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### Events
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| Event Name | Description | Parameters |
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|---------|--------|---------|
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| size-change | triggers when `page-size` changes | the new page size |
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| current-change | triggers when `current-page` changes | the new current page |
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| prev-click | triggers when the prev button is clicked and current page changes | the new current page |
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| next-click | triggers when the next button is clicked and current page changes | the new current page |
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:::warning
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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`.
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:::
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### Slots
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| Name | Description |
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| --- | --- |
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| — | custom content. To use this, you need to declare `slot` in `layout` |
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