【发布时间】:2016-12-20 10:34:40
【问题描述】:
我需要帮助。在我的颜色控制中,我试图做一个this.props.dispatch(triggerFBEvent(fbID, method, params)),但没有运气。
不过,如果我只做triggerFBEvent(fbID, method, params),那么可行。我收到错误:
index.bundle.js:61968 Uncaught TypeError: this.props.dispatch is not a function
我想要完成的是能够使用上面的行发送新的道具,然后
componentWillMount() {
this.props.dispatch(fetchFBEvent(this.props.fbID, "getColor"))
}
调用自定义服务以使用适当的颜色更新状态。但是 this.props.dispatch 也不是那里的函数。
import React from 'react'
import { connect } from 'react-redux'
import {triggerFBEvent, triggerFBClearEvent, fetchFBEvent} from '../actions/functionblocksActions'
`
import { CustomPicker, HuePicker, SaturationPicker, SliderPicker, CustomPointer } from 'react-color';
@connect((store) => {
return {
fb: store.functionblocks.functionblock
}
})
export default class Functionblock extends React.Component {
constructor(props) {
super(props);
this.state = {
};
this._getType = this._getType.bind(this)
}
_getType (wanted) {
const { fbID, fbName, func } = this.props;
let type;
let types = {
'com.xxxx.xx.service.dal.functions.Alarm': function () {
type = <Alarm fbID={fbID} fbName={fbName}/>;
},
'com.xxxx.xxx.service.dal.functions.BooleanControl': function () {
type = <BooleanControl fbID={fbID} fbName={fbName}/>;
},
'com.xxx.xxxx.service.dal.functions.BooleanSensor': function () {
type = <BooleanSensor fbID={fbID} fbName={fbName} />;
},
'com.xxxx.xxx.service.dal.functions.ColorControl': function () {
type = <ColorControl func={func} fbID={fbID} fbName={fbName} />;
}
'default': function () {
type = <WakeUp fbID={fbID} fbName={fbName} />;
}
};
// invoke it
(types[wanted] || types['default'])();
// return a String with chosen type
return type;
}
render() {
const { fbID, fbName, func } = this.props;
const type = this._getType(func.serviceProperties["clazz"]);
return(
<div>
{type}
</div>
)
}
}
// Classes for the different functions.
class ColorControl extends React.Component {
componentWillMount() {
this.props.dispatch(fetchFBEvent(this.props.fbID, "getColor"))
}
constructor(props) {
super(props);
this.state = {
color: {
h: 150.3197479248047,
s: 0.5,
l: 0.5
}
}
this.onChangeComplete = this.onChangeComplete.bind(this);
}
componentWillReceiveProps(nextProps) {
alert("YEP")
// let home = this._getHome(nextProps.areas, nextProps.statics);
// if(home!=null){
// this.setState({
// inputHome: home.name,
// })
// }
}
onChangeComplete(color, event) {
let hsl = color.hsl;
let hue = color.hsl.h / 360;
let saturation = color.hsl.s;
let lightness = color.hsl.l;
this.setState({ color: hsl })
// Update props
let fbID = this.props.fbID;
let method = "setColor";
let params = {"hue": hue, "sat": saturation, "light": lightness};
this.props.dispatch(triggerFBEvent(fbID, method, params))
}
_defineFunction(){
}
render() {
return (<div>
<SliderPicker {...this.props}
pointer={ CustomPointer }
color={this.state.color}
onChangeComplete={ this.onChangeComplete }
direction={ 'horizontal' || 'vertical' }/>
</div>
)
}
}
谁能帮助我了解发生了什么问题?
【问题讨论】:
-
ColorControl 连接到 redux 了吗?
-
您似乎没有将
connect用于ColorControl。如果您使用装饰器语法,那么您还需要在ColorControl组件定义上方添加@connect。当然,除非它是连接组件的子组件。
标签: javascript reactjs ecmascript-6 redux react-jsx