虚拟化选择器 Virtualized Select ​

<template>
  <el-select-v2
    v-model="value"
    :options="options"
    placeholder="Please select"
    style="width: 240px"
  />
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value = ref()
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: `Option ${idx + 1}`,
  label: `${initials[idx % 10]}${idx}`,
}))
</script>

<template>
  <el-select-v2
    v-model="value"
    :options="options"
    placeholder="Please select"
    style="width: 240px"
    multiple
  />
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value = ref([])
const options = ref(
  Array.from({ length: 1000 }).map((_, idx) => ({
    value: `Option ${idx + 1}`,
    label: `${initials[idx % 10]}${idx}`,
  }))
)
</script>

<template>
  <div class="flex flex-wrap gap-4 items-center">
    <el-select-v2
      v-model="value"
      :options="options"
      placeholder="Please select"
      size="large"
      style="width: 240px"
    />
    <el-select-v2
      v-model="value"
      :options="options"
      placeholder="Please select"
      style="width: 240px"
    />
    <el-select-v2
      v-model="value"
      :options="options"
      placeholder="Please select"
      size="small"
      style="width: 240px"
    />
  </div>
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value = ref()
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: `Option ${idx + 1}`,
  label: `${initials[idx % 10]}${idx}`,
}))
</script>

<style scoped>
.example-showcase .el-select-v2 {
  margin-right: 20px;
}
</style>

<template>
  <div class="m-4">
    <p>use collapse-tags</p>
    <el-select-v2
      v-model="value"
      :options="options"
      placeholder="Please select"
      style="width: 240px"
      multiple
      collapse-tags
    />
  </div>
  <div class="m-4">
    <p>use collapse-tags-tooltip</p>
    <el-select-v2
      v-model="value2"
      :options="options"
      placeholder="Please select"
      style="width: 240px"
      multiple
      collapse-tags
      collapse-tags-tooltip
    />
  </div>
  <div class="m-4">
    <p>use max-collapse-tags</p>
    <el-select-v2
      v-model="value3"
      :options="options"
      placeholder="Please select"
      style="width: 240px"
      multiple
      collapse-tags
      collapse-tags-tooltip
      :max-collapse-tags="3"
    />
  </div>
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value = ref([])
const value2 = ref([])
const value3 = ref([])
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: `Option ${idx + 1}`,
  label: `${initials[idx % 10]}${idx}`,
}))
</script>

<template>
  <el-select-v2
    v-model="value"
    filterable
    :options="options"
    placeholder="Please select"
    style="width: 240px"
    multiple
  />
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value = ref([])
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: `Option${idx + 1}`,
  label: `${initials[idx % 10]}${idx}`,
}))
</script>

<template>
  <el-select-v2
    v-model="value"
    filterable
    :options="options"
    placeholder="Please select"
    style="width: 240px; margin-right: 16px; vertical-align: middle"
    multiple
  />
  <el-select-v2
    v-model="value"
    disabled
    filterable
    :options="options"
    placeholder="Please select"
    style="width: 240px; vertical-align: middle"
    multiple
  />
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value = ref([])
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: `Option${idx + 1}`,
  label: `${initials[idx % 10]}${idx}`,
  disabled: idx % 10 === 0,
}))
</script>

<template>
  <el-select-v2
    v-model="value"
    filterable
    :options="options"
    placeholder="Please select"
    style="width: 240px"
    multiple
  />
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value = ref([])
const options = Array.from({ length: 10 }).map((_, idx) => {
  const label = idx + 1
  return {
    value: `Group ${label}`,
    label: `Group ${label}`,
    options: Array.from({ length: 10 }).map((_, idx) => ({
      value: `Option ${idx + 1 + 10 * label}`,
      label: `${initials[idx % 10]}${idx + 1 + 10 * label}`,
    })),
  }
})
</script>

<template>
  <el-select-v2
    v-model="value1"
    :options="options"
    placeholder="Please select"
    style="width: 240px; margin-right: 16px; vertical-align: middle"
    multiple
    clearable
  />
  <el-select-v2
    v-model="value2"
    :options="options"
    placeholder="Please select"
    style="width: 240px; vertical-align: middle"
    clearable
  />
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value1 = ref([])
const value2 = ref()
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: `Option ${idx + 1}`,
  label: `${initials[idx % 10]}${idx}`,
}))
</script>

<template>
  <el-select-v2
    v-model="value"
    filterable
    :options="options"
    placeholder="Please select"
    style="width: 240px"
    multiple
  >
    <template #default="{ item }">
      <span style="margin-right: 8px">{{ item.label }}</span>
      <span style="color: var(--el-text-color-secondary); font-size: 13px">
        {{ item.value }}
      </span>
    </template>
  </el-select-v2>
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value = ref([])
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: `Option ${idx + 1}`,
  label: `${initials[idx % 10]}${idx}`,
}))
</script>

<template>
  <el-select-v2
    v-model="value"
    :options="options"
    multiple
    clearable
    collapse-tags
    placeholder="Select"
    popper-class="custom-header"
    :max-collapse-tags="1"
    style="width: 240px"
  >
    <template #header>
      <el-checkbox
        v-model="checkAll"
        :indeterminate="indeterminate"
        @change="handleCheckAll"
      >
        All
      </el-checkbox>
    </template>
  </el-select-v2>
</template>

<script lang="ts" setup>
import { ref, watch } from 'vue'

import type { CheckboxValueType } from 'element-plus'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']
const checkAll = ref(false)
const indeterminate = ref(false)
const value = ref<CheckboxValueType[]>([])
const options = ref(
  Array.from({ length: 1000 }).map((_, idx) => ({
    value: `Option ${idx + 1}`,
    label: `${initials[idx % 10]}${idx}`,
  }))
)

watch(value, (val) => {
  if (val.length === 0) {
    checkAll.value = false
    indeterminate.value = false
  } else if (val.length === options.value.length) {
    checkAll.value = true
    indeterminate.value = false
  } else {
    indeterminate.value = true
  }
})

const handleCheckAll = (val: CheckboxValueType) => {
  indeterminate.value = false
  if (val) {
    value.value = options.value.map((_) => _.value)
  } else {
    value.value = []
  }
}
</script>

<style>
.custom-header {
  .el-checkbox {
    display: flex;
    height: unset;
  }
}
</style>

<template>
  <el-select-v2
    ref="select"
    v-model="value"
    :options="options"
    placeholder="Select"
    style="width: 240px"
  >
    <template #footer>
      <el-button v-if="!isAdding" text bg size="small" @click="onAddOption">
        Add an option
      </el-button>
      <div v-else class="select-footer">
        <el-input
          v-model="optionName"
          class="option-input"
          placeholder="input option name"
          size="small"
        />
        <div>
          <el-button type="primary" size="small" @click="onConfirm">
            confirm
          </el-button>
          <el-button size="small" @click="clear">cancel</el-button>
        </div>
      </div>
    </template>
  </el-select-v2>
</template>

<script lang="ts" setup>
import { nextTick, ref } from 'vue'

import type { CheckboxValueType, SelectV2Instance } from 'element-plus'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']
const select = ref<SelectV2Instance>()
const isAdding = ref(false)
const value = ref<CheckboxValueType[]>([])
const optionName = ref('')
const options = ref(
  Array.from({ length: 1000 }).map((_, idx) => ({
    value: `Option ${idx + 1}`,
    label: `${initials[idx % 10]}${idx}`,
  }))
)

const onAddOption = () => {
  isAdding.value = true
}

const onConfirm = () => {
  if (optionName.value) {
    options.value.push({
      label: optionName.value,
      value: optionName.value,
    })
    clear()
    nextTick(() => {
      select.value?.scrollTo(options.value.length - 1)
    })
  }
}

const clear = () => {
  optionName.value = ''
  isAdding.value = false
}
</script>

<style>
.select-footer {
  display: flex;
  flex-direction: column;

  .option-input {
    width: 100%;
    margin-bottom: 8px;
  }
}
</style>

<template>
  <div style="flex: auto">
    <div>
      <el-select-v2
        v-model="value1"
        :options="options"
        placeholder="Please select"
        style="width: 240px; margin-right: 16px; vertical-align: middle"
        allow-create
        default-first-option
        filterable
        multiple
        clearable
      />
      <el-select-v2
        v-model="value2"
        :options="options"
        placeholder="Please select"
        style="width: 240px; vertical-align: middle"
        allow-create
        default-first-option
        filterable
        clearable
      />
    </div>
    <div>
      <p style="margin-top: 20px; margin-bottom: 8px">
        set reserve-keyword false
      </p>
      <el-select-v2
        v-model="value3"
        :options="options"
        placeholder="Please select"
        style="width: 240px; margin-right: 16px; vertical-align: middle"
        allow-create
        default-first-option
        filterable
        multiple
        clearable
        :reserve-keyword="false"
      />
    </div>
  </div>
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value1 = ref([])
const value2 = ref()
const value3 = ref([])
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: `Option ${idx + 1}`,
  label: `${initials[idx % 10]}${idx}`,
}))
</script>

<template>
  <div class="flex flex-wrap">
    <div class="m-4">
      <p>default</p>
      <el-select-v2
        v-model="value"
        style="width: 240px"
        multiple
        filterable
        remote
        :remote-method="remoteMethod"
        clearable
        :options="options"
        :loading="loading"
        placeholder="Please enter a keyword"
      />
    </div>
    <div class="m-4">
      <p>use remote-show-suffix</p>
      <el-select-v2
        v-model="value"
        style="width: 240px"
        multiple
        filterable
        remote
        :remote-method="remoteMethod"
        remote-show-suffix
        clearable
        :options="options"
        :loading="loading"
        placeholder="Please enter a keyword"
      />
    </div>
  </div>
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const states = [
  'Alabama',
  'Alaska',
  'Arizona',
  'Arkansas',
  'California',
  'Colorado',
  'Connecticut',
  'Delaware',
  'Florida',
  'Georgia',
  'Hawaii',
  'Idaho',
  'Illinois',
  'Indiana',
  'Iowa',
  'Kansas',
  'Kentucky',
  'Louisiana',
  'Maine',
  'Maryland',
  'Massachusetts',
  'Michigan',
  'Minnesota',
  'Mississippi',
  'Missouri',
  'Montana',
  'Nebraska',
  'Nevada',
  'New Hampshire',
  'New Jersey',
  'New Mexico',
  'New York',
  'North Carolina',
  'North Dakota',
  'Ohio',
  'Oklahoma',
  'Oregon',
  'Pennsylvania',
  'Rhode Island',
  'South Carolina',
  'South Dakota',
  'Tennessee',
  'Texas',
  'Utah',
  'Vermont',
  'Virginia',
  'Washington',
  'West Virginia',
  'Wisconsin',
  'Wyoming',
]
const list = states.map((item): ListItem => {
  return { value: `value:${item}`, label: `label:${item}` }
})

interface ListItem {
  value: string
  label: string
}

const value = ref([])
const options = ref<ListItem[]>([])
const loading = ref(false)

const remoteMethod = (query: string) => {
  if (query !== '') {
    loading.value = true
    setTimeout(() => {
      loading.value = false
      options.value = list.filter((item) => {
        return item.label.toLowerCase().includes(query.toLowerCase())
      })
    }, 200)
  } else {
    options.value = []
  }
}
</script>

<template>
  <el-select-v2
    v-model="value"
    :options="options"
    placeholder="Please select"
    value-key="name"
    style="width: 240px"
  />
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value = ref({ name: 'Option 1', test: 'test 0' })
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: {
    name: `Option ${idx + 1}`,
    test: `test ${idx % 3}`,
  },
  label: `${initials[idx % 10]}${idx}`,
}))
</script>

<style scoped>
.example-showcase .el-select-v2 {
  margin-right: 20px;
}
</style>

<template>
  <el-select-v2
    v-model="value"
    :options="options"
    :props="props"
    placeholder="Please select"
    style="width: 240px"
    filterable
    multiple
  />
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']
const props = {
  label: 'name',
  value: 'id',
}
const value = ref([])
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  id: `Option ${idx + 1}`,
  name: `${initials[idx % 10]}${idx}`,
}))
</script>

<template>
  <el-select-v2
    v-model="value"
    multiple
    placeholder="Select"
    :options="colors"
    style="width: 240px"
  >
    <template #default="{ item }">
      <div class="flex items-center">
        <el-tag :color="item.value" style="margin-right: 8px" size="small" />
        <span :style="{ color: item.value }">{{ item.label }}</span>
      </div>
    </template>
    <template #tag>
      <el-tag v-for="color in value" :key="color" :color="color" />
    </template>
  </el-select-v2>
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const value = ref<string[]>([])
const colors = [
  {
    value: '#E63415',
    label: 'red',
  },
  {
    value: '#FF6600',
    label: 'orange',
  },
  {
    value: '#FFDE0A',
    label: 'yellow',
  },
  {
    value: '#1EC79D',
    label: 'green',
  },
  {
    value: '#14CCCC',
    label: 'cyan',
  },
  {
    value: '#4167F0',
    label: 'blue',
  },
  {
    value: '#6222C9',
    label: 'purple',
  },
]
colors.forEach((color) => {
  value.value.push(color.value)
})
</script>

<style scoped>
.el-tag {
  border: none;
  aspect-ratio: 1;
}
</style>

<template>
  <div class="flex flex-wrap">
    <div class="m-4">
      <p>loading icon1</p>
      <el-select-v2
        v-model="value"
        multiple
        filterable
        remote
        reserve-keyword
        placeholder="Please enter a keyword"
        :remote-method="remoteMethod"
        :loading="loading"
        :options="options"
        style="width: 240px"
      >
        <template #loading>
          <svg class="circular" viewBox="0 0 50 50">
            <circle class="path" cx="25" cy="25" r="20" fill="none" />
          </svg>
        </template>
      </el-select-v2>
    </div>
    <div class="m-4">
      <p>loading icon2</p>
      <el-select-v2
        v-model="value"
        multiple
        filterable
        remote
        reserve-keyword
        placeholder="Please enter a keyword"
        :remote-method="remoteMethod"
        :loading="loading"
        :options="options"
        style="width: 240px"
      >
        <template #loading>
          <el-icon class="is-loading">
            <svg class="circular" viewBox="0 0 20 20">
              <g
                class="path2 loading-path"
                stroke-width="0"
                style="animation: none; stroke: none"
              >
                <circle r="3.375" class="dot1" rx="0" ry="0" />
                <circle r="3.375" class="dot2" rx="0" ry="0" />
                <circle r="3.375" class="dot4" rx="0" ry="0" />
                <circle r="3.375" class="dot3" rx="0" ry="0" />
              </g>
            </svg>
          </el-icon>
        </template>
      </el-select-v2>
    </div>
  </div>
</template>

<script lang="ts" setup>
import { onMounted, ref } from 'vue'

interface ListItem {
  value: string
  label: string
}

const list = ref<ListItem[]>([])
const options = ref<ListItem[]>([])
const value = ref<string[]>([])
const loading = ref(false)

onMounted(() => {
  list.value = states.map((item) => {
    return { value: `value:${item}`, label: `label:${item}` }
  })
})

const remoteMethod = (query: string) => {
  if (query) {
    loading.value = true
    setTimeout(() => {
      loading.value = false
      options.value = list.value.filter((item) => {
        return item.label.toLowerCase().includes(query.toLowerCase())
      })
    }, 3000)
  } else {
    options.value = []
  }
}

const states = [
  'Alabama',
  'Alaska',
  'Arizona',
  'Arkansas',
  'California',
  'Colorado',
  'Connecticut',
  'Delaware',
  'Florida',
  'Georgia',
  'Hawaii',
  'Idaho',
  'Illinois',
  'Indiana',
  'Iowa',
  'Kansas',
  'Kentucky',
  'Louisiana',
  'Maine',
  'Maryland',
  'Massachusetts',
  'Michigan',
  'Minnesota',
  'Mississippi',
  'Missouri',
  'Montana',
  'Nebraska',
  'Nevada',
  'New Hampshire',
  'New Jersey',
  'New Mexico',
  'New York',
  'North Carolina',
  'North Dakota',
  'Ohio',
  'Oklahoma',
  'Oregon',
  'Pennsylvania',
  'Rhode Island',
  'South Carolina',
  'South Dakota',
  'Tennessee',
  'Texas',
  'Utah',
  'Vermont',
  'Virginia',
  'Washington',
  'West Virginia',
  'Wisconsin',
  'Wyoming',
]
</script>

<style>
.el-select-dropdown__loading {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100px;
  font-size: 20px;
}

.circular {
  display: inline;
  height: 30px;
  width: 30px;
  animation: loading-rotate 2s linear infinite;
}
.path {
  animation: loading-dash 1.5s ease-in-out infinite;
  stroke-dasharray: 90, 150;
  stroke-dashoffset: 0;
  stroke-width: 2;
  stroke: var(--el-color-primary);
  stroke-linecap: round;
}
.loading-path .dot1 {
  transform: translate(3.75px, 3.75px);
  fill: var(--el-color-primary);
  animation: custom-spin-move 1s infinite linear alternate;
  opacity: 0.3;
}
.loading-path .dot2 {
  transform: translate(calc(100% - 3.75px), 3.75px);
  fill: var(--el-color-primary);
  animation: custom-spin-move 1s infinite linear alternate;
  opacity: 0.3;
  animation-delay: 0.4s;
}
.loading-path .dot3 {
  transform: translate(3.75px, calc(100% - 3.75px));
  fill: var(--el-color-primary);
  animation: custom-spin-move 1s infinite linear alternate;
  opacity: 0.3;
  animation-delay: 1.2s;
}
.loading-path .dot4 {
  transform: translate(calc(100% - 3.75px), calc(100% - 3.75px));
  fill: var(--el-color-primary);
  animation: custom-spin-move 1s infinite linear alternate;
  opacity: 0.3;
  animation-delay: 0.8s;
}
@keyframes loading-rotate {
  to {
    transform: rotate(360deg);
  }
}
@keyframes loading-dash {
  0% {
    stroke-dasharray: 1, 200;
    stroke-dashoffset: 0;
  }
  50% {
    stroke-dasharray: 90, 150;
    stroke-dashoffset: -40px;
  }
  100% {
    stroke-dasharray: 90, 150;
    stroke-dashoffset: -120px;
  }
}
@keyframes custom-spin-move {
  to {
    opacity: 1;
  }
}
</style>

<template>
  <el-select-v2
    v-model="value"
    :options="options"
    :empty-values="[null, undefined]"
    :value-on-clear="null"
    clearable
    placeholder="Select"
    style="width: 240px"
    @clear="handleClear"
  />
</template>

<script lang="ts" setup>
import { ref } from 'vue'
import { ElMessage } from 'element-plus'

const value = ref('')

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: `Option ${idx + 1}`,
  label: `${initials[idx % 10]}${idx}`,
}))

options.unshift({
  value: '',
  label: 'All',
})

const handleClear = () => {
  ElMessage.info(`The clear value is: ${value.value}`)
}
</script>

<template>
  <div class="flex flex-wrap gap-4 items-center">
    <el-select-v2
      v-model="value1"
      :options="options"
      placeholder="Select"
      style="width: 240px"
      clearable
    >
      <template #label="{ label, value }">
        <span>{{ label }}: </span>
        <span style="font-weight: bold">{{ value }}</span>
      </template>
    </el-select-v2>

    <el-select-v2
      v-model="value2"
      :options="options"
      placeholder="Select"
      style="width: 240px"
      clearable
      multiple
    >
      <template #label="{ label, value }">
        <span>{{ label }}: </span>
        <span style="font-weight: bold">{{ value }}</span>
      </template>
    </el-select-v2>
  </div>
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']
const value1 = ref<string>('Option 1')
const value2 = ref<string[]>(['Option 1'])
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: `Option ${idx + 1}`,
  label: `${initials[idx % 10]}${idx}`,
}))
</script>

<style scoped></style>

<template>
  <div class="flex flex-wrap gap-4 items-center">
    <el-select-v2
      v-model="value"
      :options="options"
      placeholder="Please select"
      style="width: 240px"
      :fit-input-width="false"
    />

    <el-select-v2
      v-model="value"
      :options="options"
      placeholder="Please select"
      style="width: 240px"
      fit-input-width
    />

    <el-select-v2
      v-model="value"
      :options="options"
      placeholder="Please select"
      style="width: 240px"
      :fit-input-width="440"
    >
      <template #default="{ item }">
        <span>{{ item.value + item.label }}</span>
      </template>
    </el-select-v2>
  </div>
</template>

<script lang="ts" setup>
import { ref } from 'vue'

const initials = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j']

const value = ref()
const options = Array.from({ length: 1000 }).map((_, idx) => ({
  value: `Option ${idx + 1}`,
  label: `${initials[idx % 10]}${idx}${'-'.repeat(Math.ceil(idx / 25))}`,
}))
</script>