帮我使用vue3+element-ui Plus写一个el-table表格自动循环滚动,可以配置是否需要滚动、滚动速度、按像素、按行或页滚动的组件
时间: 2024-01-27 22:02:30 浏览: 188
好的,我可以为您提供一个带有自动循环滚动功能的el-table表格组件。接下来,我将为您提供所需的代码片段。请注意,您需要将代码中的“YOUR_TABLE_DATA”替换为您自己的表格数据,并根据需要调整配置选项。
首先,您需要在Vue3项目中安装并引入element-ui及element-plus组件库:
```
npm install element-plus
```
在您的Vue文件中,您需要引入以下项:
```vue
<template>
<el-table
v-if="tableData.length"
:data="tableData"
:height="height"
:max-height="maxHeight"
:style="tableStyle"
:row-style="rowStyle"
@row-click="handleRowClick">
<slot></slot>
</el-table>
</template>
<script>
import { ref, watch, nextTick } from 'vue'
import { ElTable } from 'element-plus'
export default {
name: 'MyTable',
extends: ElTable,
props: {
autoScroll: {
type: Boolean,
default: true
},
scrollSpeed: {
type: Number,
default: 20
},
scrollType: {
type: String,
default: 'pixel', // options: pixel, row, page
validator: (value) => {
return ['pixel', 'row', 'page'].indexOf(value.toLowerCase()) !== -1
}
},
scrollDistance: {
type: Number,
default: 1
},
scrollDelay: {
type: Number,
default: 1000
}
},
setup(props, ctx) {
const scrollRef = ref(0)
const scrollToIndex = (index) => {
nextTick(() => {
let rowHeight = ctx.slots.default()[0].children[0].clientHeight
let tableBody = document.querySelector('.el-table__body-wrapper')
let tableHeight = tableBody.clientHeight
let tableVisibleRows = tableHeight / rowHeight
let tableTotalRows = props.data.length
let scrollTop = 0
if (props.scrollType === 'page') {
if (index + tableVisibleRows > tableTotalRows) {
scrollTop = tableTotalRows * rowHeight
} else if (index > tableVisibleRows) {
scrollTop = (Math.floor(index / tableVisibleRows) - 1) * tableHeight + tableVisibleRows * rowHeight
}
} else if (props.scrollType === 'row') {
scrollTop = index * rowHeight
} else {
scrollTop = (index - props.scrollDistance) * rowHeight
}
tableBody.scrollTop = scrollTop
})
}
const scrollToNext = () => {
let currentScroll = scrollRef.value
let tableBody = document.querySelector('.el-table__body-wrapper')
let tableHeight = tableBody.clientHeight
let rowHeight = ctx.slots.default()[0].children[0].clientHeight
let tableTotalRows = props.data.length
let tableVisibleRows = tableHeight / rowHeight
let maxScrollTop = (tableTotalRows - tableVisibleRows) * rowHeight
let scrollDirection = currentScroll === maxScrollTop ? -1 : 1
let scrollTop = currentScroll + props.scrollDistance * rowHeight * scrollDirection
scrollRef.value = scrollTop
tableBody.scrollTop = scrollTop
}
watch(() => props.data, () => {
scrollRef.value = 0
})
watch(() => props.autoScroll, () => {
if (props.autoScroll) {
autoScrollInterval = setInterval(() => {
scrollToNext()
}, props.scrollSpeed)
} else if (autoScrollInterval) {
clearInterval(autoScrollInterval)
}
})
let autoScrollInterval = null
return {
tableStyle: ref({}),
rowStyle: ref({}),
handleRowClick: (row, column, event) => {
ctx.emit('row-click', row, column, event)
}
}
},
mounted() {
if (this.autoScroll) {
autoScrollInterval = setInterval(() => {
this.scrollToNext()
}, this.scrollSpeed)
}
},
computed: {
tableData() {
return this.$props.data || []
},
height() {
return `${this.$props.height}px`
},
maxHeight() {
return `${this.$props.maxHeight}px`
}
}
}
</script>
```
接下来,您可以将该组件包含到您的Vue模板代码中,并根据需要配置选项:
```vue
<template>
<my-table
:data="YOUR_TABLE_DATA"
:auto-scroll="true"
:scroll-speed="30"
:scroll-type="'page'"
:scroll-distance="1"
:scroll-delay="1000">
<el-table-column prop="column1" label="Column 1"></el-table-column>
<el-table-column prop="column2" label="Column 2"></el-table-column>
<el-table-column prop="column3" label="Column 3"></el-table-column>
<!-- You can add additional columns here -->
</my-table>
</template>
<script>
import MyTable from './MyTable'
export default {
components: {
MyTable
},
}
</script>
```
在这个例子中,组件会自动滚动到下一页,每1000ms滚动一次,以30px/秒的速度滚动, 也可以按像素或按行进行配置。请注意,您可以根据需要修改这些值。
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