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vxe-table/examples/views/table/scroll/ScrollFullCols.vue
xuliangzhan 97755af21b update
2019-08-14 23:42:50 +08:00

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Vue
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<template>
<div>
<p class="tip">
虚拟滚动渲染加载 10 万行 1 万列左右固定列<br>
大数据不建议使用双向绑定的 <table-api-link name="data"/> 属性vue 监听会大数据会短暂的卡顿建议使用 <table-api-link prop="loadData"/>/<table-api-link prop="loadColumn"/> 函数<br>
对于多选 type=<table-column-api-link prop="selection"/> 当数据量海量时应该绑定 <table-api-link prop="checkField"/> 属性渲染速度更快<br>
数据超大情况下必须使用<table-api-link prop="show-overflow"/><table-api-link prop="show-header-overflow"/> 参数以及调整好 <table-api-link prop="optimization"/> {scrollX,scrollY} 适合的参数可以更加流畅<br>
注意如果要启用横向虚拟滚动所有的列宽度必须一致否则无法兼容
</p>
<vxe-grid
border
show-overflow
show-header-overflow
highlight-hover-row
highlight-current-row
ref="xTable"
height="600"
:loading="loading"
:select-config="{checkField: 'checked'}"
:optimization ="{scrollY: {gt: 200, oSize: 20, rSize: 60}}">
</vxe-grid>
<pre>
<code>
| Arrow Up | 匀速向上滚动数据 |
| Arrow Down | 匀速向下滚动数据 |
| Arrow Left | 匀速向左滚动数据 |
| Arrow Right | 匀速向右滚动数据 |
</code>
</pre>
<p class="demo-code">{{ $t('app.body.button.showCode') }}</p>
<pre>
<code class="xml">{{ demoCodes[0] }}</code>
<code class="javascript">{{ demoCodes[1] }}</code>
</pre>
</div>
</template>
<script>
import hljs from 'highlight.js'
export default {
data () {
return {
loading: false,
demoCodes: [
`
<vxe-grid
border
show-overflow
show-header-overflow
highlight-hover-row
highlight-current-row
ref="xTable"
height="600"
:loading="loading"
:select-config="{checkField: 'checked'}"
:optimization ="{scrollY: {gt: 200, oSize: 20, rSize: 60}}">
</vxe-grid>
`,
`
export default {
data () {
return {
loading: false
}
},
created () {
this.loading = true
setTimeout(() => {
let tableData = window.MOCK_DATA_LIST.slice(0, 100000)
let tableColumn = window.MOCK_COLUMN_LIST.slice(0, 10000)
// 使用函数式加载,阻断 vue 对大数组的双向绑定,大数据性能翻倍提升
if (this.$refs.xTable) {
this.$refs.xTable.loadColumn(tableColumn)
this.$refs.xTable.loadData(tableData)
}
this.loading = false
}, 300)
}
}
`
]
}
},
created () {
this.loading = true
setTimeout(() => {
let tableData = window.MOCK_DATA_LIST.slice(0, 100000)
let tableColumn = window.MOCK_COLUMN_LIST.slice(0, 10000)
// 使用函数式加载,阻断 vue 对大数组的双向绑定,大数据性能翻倍提升
if (this.$refs.xTable) {
this.$refs.xTable.loadColumn(tableColumn)
this.$refs.xTable.loadData(tableData)
}
this.loading = false
}, 300)
},
mounted () {
Array.from(this.$el.querySelectorAll('pre code')).forEach((block) => {
hljs.highlightBlock(block)
})
}
}
</script>