Reactjs 在菜单列表中选择自定义输入
我正在尝试使用React select选项创建自定义选择。我希望我的搜索不是在控制框中,而是在菜单中。 我试过这个:Reactjs 在菜单列表中选择自定义输入,reactjs,react-select,Reactjs,React Select,我正在尝试使用React select选项创建自定义选择。我希望我的搜索不是在控制框中,而是在菜单中。 我试过这个: import React from "react"; import Select, { components } from "react-select"; import { colourOptions, groupedOptions } from "./docs/data"; const MenuList = props => { return ( <
import React from "react";
import Select, { components } from "react-select";
import { colourOptions, groupedOptions } from "./docs/data";
const MenuList = props => {
return (
<components.MenuList {...props}>
<components.Input {...props} />;
{props.selectProps.inputValue.length > 1 ? props.children : ""}
</components.MenuList>
);
};
export default () => (
<Select
defaultValue={colourOptions[1]}
options={groupedOptions}
components={{ MenuList }}
/>
);
我猜react select的组件。Input
正在Input
标记内呈现另一个div或类似的内容。
有人知道如何做到这一点吗?你应该用
Advanced
一节文档中的建议来激励自己
我已经在CodeSandbox中重新创建了一个,这样您就可以看到它的运行并使用它。但其主要思想是将原始的Select
元素嵌入到某个受控元素中,并编辑Select
的样式,使其感觉像一个MenuList
class PopoutExample extends Component<*, State> {
state = { isOpen: false, value: undefined };
toggleOpen = () => {
this.setState(state => ({ isOpen: !state.isOpen }));
};
onSelectChange = value => {
this.toggleOpen();
this.setState({ value });
};
render() {
const { isOpen, value } = this.state;
return (
<Dropdown
isOpen={isOpen}
onClose={this.toggleOpen}
target={
<Button
iconAfter={<ChevronDown />}
onClick={this.toggleOpen}
isSelected={isOpen}
>
{value ? `State: ${value.label}` : "Select a State"}
</Button>
}
>
<Select
autoFocus
backspaceRemovesValue={false}
components={{ DropdownIndicator, IndicatorSeparator: null }}
controlShouldRenderValue={false}
hideSelectedOptions={false}
isClearable={false}
menuIsOpen
onChange={this.onSelectChange}
options={stateOptions}
placeholder="Search..."
styles={selectStyles}
tabSelectsValue={false}
value={value}
/>
</Dropdown>
);
}
}
// styled components
const Menu = props => {
const shadow = "hsla(218, 50%, 10%, 0.1)";
return (
<div
css={{
backgroundColor: "white",
borderRadius: 4,
boxShadow: `0 0 0 1px ${shadow}, 0 4px 11px ${shadow}`,
marginTop: 8,
position: "absolute",
zIndex: 2
}}
{...props}
/>
);
};
const Blanket = props => (
<div
css={{
bottom: 0,
left: 0,
top: 0,
right: 0,
position: "fixed",
zIndex: 1
}}
{...props}
/>
);
const Dropdown = ({ children, isOpen, target, onClose }) => (
<div css={{ position: "relative" }}>
{target}
{isOpen ? <Menu>{children}</Menu> : null}
{isOpen ? <Blanket onClick={onClose} /> : null}
</div>
);
const Svg = p => (
<svg
width="24"
height="24"
viewBox="0 0 24 24"
focusable="false"
role="presentation"
{...p}
/>
);
const DropdownIndicator = () => (
<div css={{ color: colors.neutral20, height: 24, width: 32 }}>
<Svg>
<path
d="M16.436 15.085l3.94 4.01a1 1 0 0 1-1.425 1.402l-3.938-4.006a7.5 7.5 0 1 1 1.423-1.406zM10.5 16a5.5 5.5 0 1 0 0-11 5.5 5.5 0 0 0 0 11z"
fill="currentColor"
fillRule="evenodd"
/>
</Svg>
</div>
);
const ChevronDown = () => (
<Svg style={{ marginRight: -6 }}>
<path
d="M8.292 10.293a1.009 1.009 0 0 0 0 1.419l2.939 2.965c.218.215.5.322.779.322s.556-.107.769-.322l2.93-2.955a1.01 1.01 0 0 0 0-1.419.987.987 0 0 0-1.406 0l-2.298 2.317-2.307-2.327a.99.99 0 0 0-1.406 0z"
fill="currentColor"
fillRule="evenodd"
/>
</Svg>
);
类poputeExample扩展组件{
state={isOpen:false,value:undefined};
toggleOpen=()=>{
this.setState(state=>({isOpen:!state.isOpen}));
};
onSelectChange=值=>{
这个。toggleOpen();
this.setState({value});
};
render(){
常量{isOpen,value}=this.state;
返回(
);
}
}
//样式化组件
常量菜单=道具=>{
const shadow=“hsla(218,50%,10%,0.1)”;
返回(
);
};
常数毯子=道具=>(
);
常量下拉列表=({children,isOpen,target,onClose})=>(
{target}
{isOpen?{children}:null}
{isOpen?:null}
);
const Svg=p=>(
);
常量下拉指示器=()=>(
);
const ChevronDown=()=>(
);
您似乎必须用一个
标记来包装您的选择组件输入。不,不起作用-当您调用MenuList:components={MenuList}
时,在选择组件的属性上删除一个大括号。示例:这只会呈现默认菜单,而不是我的自定义菜单。我想我理解您的意图。像我描述的那样?一、 还有其他人,也有过这样的经历。首先你必须意识到,Input
组件不是一个“Input”。我喜欢这个,我做过一次类似的事情,对于MultiSelect,如果你想要反应选择的所有样式,它会有一点问题,我希望有一个更简单的解决方案,但是我猜它不存在。对于multi-select,您必须花费大量精力来使用下拉列表元素来伪造select
。React select功能强大,可定制,但没有那么简单。基于此解决方案,我对其进行了一些调整:
class PopoutExample extends Component<*, State> {
state = { isOpen: false, value: undefined };
toggleOpen = () => {
this.setState(state => ({ isOpen: !state.isOpen }));
};
onSelectChange = value => {
this.toggleOpen();
this.setState({ value });
};
render() {
const { isOpen, value } = this.state;
return (
<Dropdown
isOpen={isOpen}
onClose={this.toggleOpen}
target={
<Button
iconAfter={<ChevronDown />}
onClick={this.toggleOpen}
isSelected={isOpen}
>
{value ? `State: ${value.label}` : "Select a State"}
</Button>
}
>
<Select
autoFocus
backspaceRemovesValue={false}
components={{ DropdownIndicator, IndicatorSeparator: null }}
controlShouldRenderValue={false}
hideSelectedOptions={false}
isClearable={false}
menuIsOpen
onChange={this.onSelectChange}
options={stateOptions}
placeholder="Search..."
styles={selectStyles}
tabSelectsValue={false}
value={value}
/>
</Dropdown>
);
}
}
// styled components
const Menu = props => {
const shadow = "hsla(218, 50%, 10%, 0.1)";
return (
<div
css={{
backgroundColor: "white",
borderRadius: 4,
boxShadow: `0 0 0 1px ${shadow}, 0 4px 11px ${shadow}`,
marginTop: 8,
position: "absolute",
zIndex: 2
}}
{...props}
/>
);
};
const Blanket = props => (
<div
css={{
bottom: 0,
left: 0,
top: 0,
right: 0,
position: "fixed",
zIndex: 1
}}
{...props}
/>
);
const Dropdown = ({ children, isOpen, target, onClose }) => (
<div css={{ position: "relative" }}>
{target}
{isOpen ? <Menu>{children}</Menu> : null}
{isOpen ? <Blanket onClick={onClose} /> : null}
</div>
);
const Svg = p => (
<svg
width="24"
height="24"
viewBox="0 0 24 24"
focusable="false"
role="presentation"
{...p}
/>
);
const DropdownIndicator = () => (
<div css={{ color: colors.neutral20, height: 24, width: 32 }}>
<Svg>
<path
d="M16.436 15.085l3.94 4.01a1 1 0 0 1-1.425 1.402l-3.938-4.006a7.5 7.5 0 1 1 1.423-1.406zM10.5 16a5.5 5.5 0 1 0 0-11 5.5 5.5 0 0 0 0 11z"
fill="currentColor"
fillRule="evenodd"
/>
</Svg>
</div>
);
const ChevronDown = () => (
<Svg style={{ marginRight: -6 }}>
<path
d="M8.292 10.293a1.009 1.009 0 0 0 0 1.419l2.939 2.965c.218.215.5.322.779.322s.556-.107.769-.322l2.93-2.955a1.01 1.01 0 0 0 0-1.419.987.987 0 0 0-1.406 0l-2.298 2.317-2.307-2.327a.99.99 0 0 0-1.406 0z"
fill="currentColor"
fillRule="evenodd"
/>
</Svg>
);