Ant Design Vue Select Component with Maximum Item Limit

I am working on a VueJS application that incorporates the Antdv select component, which can be found at

My goal is to limit the user's selection to a maximum of 4 items. However, I have not found a supported parameter in the documentation that allows for this functionality. I attempted to dynamically set the select options prop to disabled: true when the value exceeds 3, but this caused the entire select list to become read-only and prevented me from deleting selected options.

Below is an overview of my current setup:

Data

itemOptions: any[] = [
{ label: "a", value: "a" },
{ label: "b", value: "b" },
{ label: "c", value: "c" }
];
items: any[] = [];

Template

<a-select
  v-model:value="items"
  mode="tags"
  placeholder="Select at least one item"
>
  <a-select-option
    v-for="(item, index) in itemOptions"
    :key="index"
    :value="item.value"
    :disabled="item.length > 3 ? true : false"
    >{{ item.label }}
  </a-select-option>
</a-select>

Answer №1

To ensure only 4 items can be selected, you can use a computed function to disable unselected options

const selectionLimitComputed = computed( () => {
  return selectedItems.value.length < 4 ? itemChoices.value : itemChoices.value.map(choice => {
    return selectedItems.value.includes(choice.value) ? choice : {...choice, disabled: true}
  })
})

HTML Template

<a-select
  v-model:value="selectedItems"
  mode="tags"
  placeholder="Choose up to 4 items"
  :options="selectionLimitComputed"
/>

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