[英]addComponentAsRefTo(…): Only a ReactOwner can have refs - Error in Form with Select List
I have a Select list that I have built in React and it works fine but I keep getting errors from React. 我有一个内置在React中的Select列表,它可以正常工作,但是我不断从React中获取错误。 I get more errors in Minified mode which is even worse. 我在缩小模式下收到了更多错误,甚至更糟。 I have been directed to a Facebook link at https://facebook.github.io/react/docs/error-decoder.html?invariant=119 and https://facebook.github.io/react/docs/error-decoder.html?invariant=120 but none of the options there have really helped me. 我被定向到https://facebook.github.io/react/docs/error-decoder.html?invariant=119和https://facebook.github.io/react/docs/error-decoder上的Facebook链接.html?invariant = 120,但那里的所有选项都没有真正帮助过我。
I have looked through my referenced libraries and can find no duplicate loading of React (It is CDN loaded on the page and externalised by Browserify / Browserify-shim - I have gone through the bundles looking for the React code and haven't found it.) I double checked by commenting out React on my page and everything dutifully fell over (as expected), so I am down to it being related to my code somehow. 我浏览了我引用的库,找不到重复的React加载(它是CDN加载到页面上,并由Browserify / Browserify-shim外部化-我遍历了所有捆绑包,寻找React代码,但没有找到它。 )我通过在页面上注释掉React进行了仔细检查,然后一切都按照预期完成了,所以我认为它与我的代码相关。
The root component looks like this... 根组件看起来像这样...
export default class Select extends React.Component {
constructor(props) {
super(props)
this.state = {
value: this.props.value || ""
}
this.handleSelectChange = this.handleSelectChange.bind(this)
this.clearValue = this.clearValue.bind(this)
}
handleSelectChange(e) {
this.state.value = e.target.value
this.props.onChange(e)
}
clearValue() {
this.setState({ value: this.props.defaultValue })
this.forceUpdate()
}
render() {
const optionNodes = this.props.options.map((obj, index) => {
return <ListItem
key = {index.toString()}
data = {obj}
currentSelectedValue = {this.state.value} />
})
return (
<select
className = "form-control drop-down"
id = {this.props.name}
name = {this.props.name}
onChange = {this.handleSelectChange}
disabled = {this.props.disabled}
value = {this.state.value}>
{this.state.value == this.props.defaultValue &&
<option
id = {`${this.props.name}-placeholder`}
className = "placeholder"
value = {this.props.defaultValue} disabled hidden>
{this.props.placeholder}
</option>}
{optionNodes}
</select>
)
}
}
This is used by a higher component here... 在此由更高的组件使用...
export default class SelectFormLine extends React.Component {
constructor(props) {
super(props)
this.clearValue = this.clearValue.bind(this)
}
clearValue() {
this.refs.selectList.clearValue()
}
render() {
return (
<div className="row padded-row">
<div className="drop-down-line form-group">
<FormLabel
name = {this.props.name}
className = {this.props.labelClassName}
value = {this.props.label} />
<div className={this.props.inputClassName}>
<Select
name = {this.props.name}
ref = "selectList"
placeholder = {this.props.placeholder}
onChange = {this.props.onChange}
value = {this.props.value}
defaultValue = {this.props.defaultValue}
disabled = {this.props.disabled}
options = {this.props.options} />
<FormInputNotes>{this.props.children}</FormInputNotes>
</div>
</div>
</div>
)
}
}
Which sits inside my form here (snippet)... 在我的表单里面(片段)...
export default class UserManagementForm extends React.Component { 导出默认类UserManagementForm扩展了React.Component {
constructor(props) {
super(props)
this.state = {
organisationsDisabled: true,
typesLookupData: [],
organisationsLookupData: []
}
this.handleTypeChange = this.handleTypeChange.bind(this)
}
handleTypeChange(e) {
const changedUser = this.props.object
changedUser.role = e.target.value
this.refs.organisationIdSelect.clearValue()
changedUser.organisationId = ""
this.setState({ organisationsDisabled: false })
this.props.onChange(changedUser)
this.loadOrganisationsLookupData(changedUser.role)
}
render() {
const labelClassNames = "col-md-2 col-sm-4"
const inputClassNames = "col-md-10 col-sm-8"
return (
<InlineContent useFor = {this.props.useFor}>
<Form.Wrapper
formId = {this.props.formId}
object = {this.props.object}
className = "col-md-12"
onSubmit = {this.props.onSubmit}
onSubmitSuccess = {this.props.onSubmitSuccess}>
{this.props.object.id !== undefined && <Form.Hidden name = "ID" value = {this.props.object.id} />}
<Form.ErrorDisplay />
{this.props.managed && this.props.useFor == "create" && <Form.SelectLine
name = "OrganisationId"
ref = "organisationIdSelect"
label = "Organisation"
labelClassName = {labelClassNames}
inputClassName = {inputClassNames}
placeholder = "Please select an organisation…"
onChange = {this.handleOrganisationChange}
value = {this.props.object.organisationId}
disabled = {this.state.organisationsDisabled}
options = {this.state.organisationsLookupData} /> }
{!this.props.managed || this.props.useFor == "edit" && <Form.Hidden name = "OrganisationId" value = {this.props.object.organisationId} />}
<Form.Buttons.SubmitCancel
className = {`${inputClassNames} col-md-offset-2 col-sm-offset-4`}
submitText = {this.props.submitText}
onCancel = {this.props.onCancel} />
</Form.Wrapper>
</InlineContent>
)
}
} }
This error is weird. 这个错误很奇怪。
I've gotten by it by just changing string refs to what Facebook has said to start using. 我只是通过将字符串引用更改为Facebook所说的开始使用而得到的。 https://facebook.github.io/react/docs/refs-and-the-dom.html https://facebook.github.io/react/docs/refs-and-the-dom.html
So basically you want to do 所以基本上你想做
ref={(i) => this._whateverYouWantToCallIt = i}
If that doesn't fix it, there may be a double React on your project. 如果那不能解决问题,那么您的项目上可能会有双重React。
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