react-select: 禁用下拉列表
react-select: disable dropdown list
有没有办法禁用下拉列表?
我没有找到任何可以帮助我的道具。
特别是,当用户选择了超过 5 个元素时,我想禁用下拉列表。
我创建了 this codesandbox。它实际上不起作用,因为它没有链接到状态:
const limit = 3;
const defaults = [colourOptions[2], colourOptions[3]];
export default () => (
<Select
defaultValue={defaults}
isMulti
name="colors"
options={colourOptions}
className="basic-multi-select"
classNamePrefix="select"
isSearchable={defaults.length < limit}
// disableDropdown={defaults.length > limit} // <-- something like this
/>
)
您可以 'disable/remove' 通过删除组件来下拉菜单;
components={{
Menu: () => null, // Remove menu
MenuList: () => null, // Remove menu list
DropdownIndicator: () => null, // Remove dropdown icon
IndicatorSeparator: () => null // Remove separator
}}
<Select
defaultValue={defaults}
isMulti
name="colors"
options={colourOptions}
className="basic-multi-select"
classNamePrefix="select"
isSearchable={defaults.length < limit}
components={{
Menu: () => null,
MenuList: () => null,
DropdownIndicator: () => null,
IndicatorSeparator: () => null
}}
/>
你可以简单地做到这一点。基本上跟踪已经设置了多少元素。然后 isOptionDisabled
from re-select 如果选项长度大于限制则禁用选项:
import React, { useState } from "react";
import Select from "react-select";
import { colourOptions } from "./docs/data";
const limit = 3;
const defaults = [colourOptions[2], colourOptions[3]];
// console.log(defaults);
export default () => {
const [options, setOptions] = useState(defaults);
return (
<Select
defaultValue={defaults}
isMulti
name="colors"
options={colourOptions}
onChange={(val) => setOptions(val)}
className="basic-multi-select"
classNamePrefix="select"
isSearchable={defaults.length < limit}
isOptionDisabled={(option, test) => options.length > limit} // <-- something like this
/>
);
};
这是演示:https://codesandbox.io/s/relaxed-feistel-w44ns?file=/example.js:0-675
有没有办法禁用下拉列表? 我没有找到任何可以帮助我的道具。
特别是,当用户选择了超过 5 个元素时,我想禁用下拉列表。
我创建了 this codesandbox。它实际上不起作用,因为它没有链接到状态:
const limit = 3;
const defaults = [colourOptions[2], colourOptions[3]];
export default () => (
<Select
defaultValue={defaults}
isMulti
name="colors"
options={colourOptions}
className="basic-multi-select"
classNamePrefix="select"
isSearchable={defaults.length < limit}
// disableDropdown={defaults.length > limit} // <-- something like this
/>
)
您可以 'disable/remove' 通过删除组件来下拉菜单;
components={{
Menu: () => null, // Remove menu
MenuList: () => null, // Remove menu list
DropdownIndicator: () => null, // Remove dropdown icon
IndicatorSeparator: () => null // Remove separator
}}
<Select
defaultValue={defaults}
isMulti
name="colors"
options={colourOptions}
className="basic-multi-select"
classNamePrefix="select"
isSearchable={defaults.length < limit}
components={{
Menu: () => null,
MenuList: () => null,
DropdownIndicator: () => null,
IndicatorSeparator: () => null
}}
/>
你可以简单地做到这一点。基本上跟踪已经设置了多少元素。然后 isOptionDisabled
from re-select 如果选项长度大于限制则禁用选项:
import React, { useState } from "react";
import Select from "react-select";
import { colourOptions } from "./docs/data";
const limit = 3;
const defaults = [colourOptions[2], colourOptions[3]];
// console.log(defaults);
export default () => {
const [options, setOptions] = useState(defaults);
return (
<Select
defaultValue={defaults}
isMulti
name="colors"
options={colourOptions}
onChange={(val) => setOptions(val)}
className="basic-multi-select"
classNamePrefix="select"
isSearchable={defaults.length < limit}
isOptionDisabled={(option, test) => options.length > limit} // <-- something like this
/>
);
};
这是演示:https://codesandbox.io/s/relaxed-feistel-w44ns?file=/example.js:0-675