primevue-mirror/doc/listbox/VirtualScrollDoc.vue

64 lines
2.2 KiB
Vue

<template>
<DocSectionText v-bind="$attrs">
<p>
VirtualScroller is used to render a long list of options efficiently like 100K records in this demo. The configuration is done with <i>virtualScrollerOptions</i> property, refer to the
<NuxtLink to="/virtualscroller">VirtualScroller</NuxtLink> for more information about the available options as it is used internally by Listbox.
</p>
</DocSectionText>
<div class="card flex justify-center">
<Listbox v-model="selectedItem" :options="items" optionLabel="label" optionValue="value" :virtualScrollerOptions="{ itemSize: 38 }" class="w-full md:w-56" listStyle="height:250px" />
</div>
<DocSectionCode :code="code" />
</template>
<script>
export default {
data() {
return {
selectedItem: null,
items: Array.from({ length: 100000 }, (_, i) => ({ label: `Item #${i}`, value: i })),
code: {
basic: `
<Listbox v-model="selectedItem" :options="items" optionLabel="label" optionValue="value"
:virtualScrollerOptions="{ itemSize: 38 }" class="w-full md:w-56" listStyle="height:250px" />
`,
options: `
<template>
<div class="card flex justify-center">
<Listbox v-model="selectedItem" :options="items" optionLabel="label" optionValue="value"
:virtualScrollerOptions="{ itemSize: 38 }" class="w-full md:w-56" listStyle="height:250px" />
</div>
</template>
<script>
export default {
data() {
return {
selectedItem: null,
items: Array.from({ length: 100000 }, (_, i) => ({ label: \`Item #\${i}\`, value: i }))
};
}
};
<\/script>
`,
composition: `
<template>
<div class="card flex justify-center">
<Listbox v-model="selectedItem" :options="items" optionLabel="label" optionValue="value"
:virtualScrollerOptions="{ itemSize: 38 }" class="w-full md:w-56" listStyle="height:250px" />
</div>
</template>
<script setup>
import { ref } from "vue";
const selectedItem = ref();
const items = ref(Array.from({ length: 100000 }, (_, i) => ({ label: \`Item #\${i}\`, value: i })));
<\/script>
`
}
};
}
};
</script>