element-plus/website/docs/jp/scrollbar.md

Scrollbar

Used to replace the browser's native scrollbar.

Basic usage

:::demo Use height property to set the height of the scrollbar, or if not set, it adapts according to the parent container height.

<template>
  <el-scrollbar height="400px">
    <p class="item" v-for="item in 20">{{ item }}</p>
  </el-scrollbar>
</template>

:::

Horizontal scroll

:::demo When the element width is greater than the scrollbar width, the horizontal scrollbar is displayed.

<template>
  <el-scrollbar>
    <div class="flex-content">
      <p class="item" v-for="item in 50">{{ item }}</p>
    </div>
  </el-scrollbar>
</template>

:::

Max height

:::demo The scrollbar is displayed only when the element height exceeds the max height.

<template>
  <el-button @click="add">Add Item</el-button>
  <el-button @click="delete">Delete Item</el-button>
  <el-scrollbar max-height="400px">
    <p class="item" v-for="item in count">{{ item }}</p>
  </el-scrollbar>
</template>

<script>
  export default {
    data() {
      return {
        count: 3,
      }
    },
    methods: {
      add() {
        this.count++
      },
      delete() {
        if (this.count > 0) {
          this.count--
        }
      },
    },
  }
</script>

:::

Manual scroll

:::demo Use setScrollTop and setScrollLeft methods can control scrollbar manually.

<template>
  <el-scrollbar ref="scrollbar" height="400px" always>
    <div ref="inner">
      <p class="item" v-for="item in 20">{{ item }}</p>
    </div>
  </el-scrollbar>

  <el-slider
    v-model="value"
    @input="inputSlider"
    :max="max"
    :format-tooltip="formatTooltip"
  ></el-slider>
</template>

<script>
  export default {
    data() {
      return {
        max: 0,
        value: 0,
      }
    },
    mounted() {
      this.max = this.$refs.inner.clientHeight - 380
    },
    methods: {
      inputSlider(value) {
        this.$refs.scrollbar.setScrollTop(value)
      },
      formatTooltip(value) {
        return `${value} px`
      },
    },
  }
</script>

:::

Scrollbar Attributes

Attribute	Description	Type	Accepted Values	Default
height	height of scrollbar	string / number	—	—
max-height	max height of scrollbar	string / number	—	—
native	whether to use the native scrollbar style	boolean	—	false
wrap-style	style of warp container	string	—	—
wrap-class	class of warp container	string	—	—
view-style	style of view	string	—	—
view-class	class of view	string	—	—
noresize	do not respond to container size changes, if the container size does not change, it is better to set it to optimize performance	boolean	—	false
tag	element tag of the view	string	—	div
always	always show scrollbar	boolean	—	false
min-size	minimum size of scrollbar	number	—	20

Scrollbar Events

Event Name	Description	Parameters
scroll	triggers when scrolling	distance of scrolling { scrollLeft, scrollTop }

Scrollbar Methods

Method	Description	Parameters
setScrollTop	Set distance to scroll top	(scrollTop: number)
setScrollLeft	Set distance to scroll left	(scrollLeft: number)
update	update scrollbar state manually	—