React Select:传入额外数据以供自定义渲染使用
ReactSelect: pass in extra data to be used by custom render
我正在使用 React-Select。
目前我正在从 elasticsearch 获取数据并将其设置为状态:
var new_titles = []
body.hits.hits.forEach(function(obj){ // looping through elasticsearch
new_titles.push({value: obj._source.title_id, label: obj._source.title_name})
})
this.setState({titleResults: new_titles})
稍后我使用 this.state.titleResults
并将其传递到我的 React-Select 组件中:
<Select autofocus optionComponent={DropdownOptions} options={this.state.titleResults} simpleValue clearable={this.state.clearable} name="selected-state" value={this.state.selectedTitleValue} onChange={this.handleTitleChosen} searchable={this.state.searchable} />
这很好用。但现在我想在用户搜索我的 React-Select componentOptions 时传递与此标题相关的额外元数据。是这样的:
我只是传递 {value: obj._source.title_id, label: obj._source.title_name}
,但我想传递更多信息以供我的 DropdownOption
组件使用:
const DropdownOptions = React.createClass({
propTypes: {
children: React.PropTypes.node,
className: React.PropTypes.string,
isDisabled: React.PropTypes.bool,
isFocused: React.PropTypes.bool,
isSelected: React.PropTypes.bool,
onFocus: React.PropTypes.func,
onSelect: React.PropTypes.func,
option: React.PropTypes.object.isRequired,
},
handleMouseDown (event) {
event.preventDefault();
event.stopPropagation();
this.props.onSelect(this.props.option, event);
},
handleMouseEnter (event) {
this.props.onFocus(this.props.option, event);
},
handleMouseMove (event) {
if (this.props.isFocused) return;
this.props.onFocus(this.props.option, event);
},
render () {
return (
<div className={this.props.className}
onMouseDown={this.handleMouseDown}
onMouseEnter={this.handleMouseEnter}
onMouseMove={this.handleMouseMove}
title={this.props.option.title}>
<span>Testing Text</span>
{this.props.children}
</div>
);
}
});
您将如何向该组件传递更多信息?
好吧,如果我正确地查看了代码,那么看起来您可以将 optionRenderer 道具与您的 optionComponent 一起传递。
https://github.com/JedWatson/react-select/blob/master/src/Select.js#L874
它将您的选项作为参数,因此假设您可以在选项对象中传递其他字段并通过 optionRenderer 函数呈现。也许是这样的...
// ...
optionRenderer(option) {
return (
<div>
{option.value} - {option.label} - {option.someOtherValue}
</div>
)
}
// ...
render() {
let selectProps = {
optionComponent: DropdownOptions,
optionRenderer: this.optionRenderer,
options: this.state.titleResults,
simpleValue: true,
clearable: this.state.clearable,
name: 'selected-state',
value: this.state.selectedTitleValue,
onChange: this.handleTitleChosen,
searchable: this.state.searchable,
autofocus: true
}
return <Select {...selectProps} />
}
我正在使用 React-Select。
目前我正在从 elasticsearch 获取数据并将其设置为状态:
var new_titles = []
body.hits.hits.forEach(function(obj){ // looping through elasticsearch
new_titles.push({value: obj._source.title_id, label: obj._source.title_name})
})
this.setState({titleResults: new_titles})
稍后我使用 this.state.titleResults
并将其传递到我的 React-Select 组件中:
<Select autofocus optionComponent={DropdownOptions} options={this.state.titleResults} simpleValue clearable={this.state.clearable} name="selected-state" value={this.state.selectedTitleValue} onChange={this.handleTitleChosen} searchable={this.state.searchable} />
这很好用。但现在我想在用户搜索我的 React-Select componentOptions 时传递与此标题相关的额外元数据。是这样的:
我只是传递 {value: obj._source.title_id, label: obj._source.title_name}
,但我想传递更多信息以供我的 DropdownOption
组件使用:
const DropdownOptions = React.createClass({
propTypes: {
children: React.PropTypes.node,
className: React.PropTypes.string,
isDisabled: React.PropTypes.bool,
isFocused: React.PropTypes.bool,
isSelected: React.PropTypes.bool,
onFocus: React.PropTypes.func,
onSelect: React.PropTypes.func,
option: React.PropTypes.object.isRequired,
},
handleMouseDown (event) {
event.preventDefault();
event.stopPropagation();
this.props.onSelect(this.props.option, event);
},
handleMouseEnter (event) {
this.props.onFocus(this.props.option, event);
},
handleMouseMove (event) {
if (this.props.isFocused) return;
this.props.onFocus(this.props.option, event);
},
render () {
return (
<div className={this.props.className}
onMouseDown={this.handleMouseDown}
onMouseEnter={this.handleMouseEnter}
onMouseMove={this.handleMouseMove}
title={this.props.option.title}>
<span>Testing Text</span>
{this.props.children}
</div>
);
}
});
您将如何向该组件传递更多信息?
好吧,如果我正确地查看了代码,那么看起来您可以将 optionRenderer 道具与您的 optionComponent 一起传递。
https://github.com/JedWatson/react-select/blob/master/src/Select.js#L874
它将您的选项作为参数,因此假设您可以在选项对象中传递其他字段并通过 optionRenderer 函数呈现。也许是这样的...
// ...
optionRenderer(option) {
return (
<div>
{option.value} - {option.label} - {option.someOtherValue}
</div>
)
}
// ...
render() {
let selectProps = {
optionComponent: DropdownOptions,
optionRenderer: this.optionRenderer,
options: this.state.titleResults,
simpleValue: true,
clearable: this.state.clearable,
name: 'selected-state',
value: this.state.selectedTitleValue,
onChange: this.handleTitleChosen,
searchable: this.state.searchable,
autofocus: true
}
return <Select {...selectProps} />
}