解决办法:
在动态获取值的函数前面加 访问器属性 get ,去获取对象的属性
@inject('commonStore', 'reportUIStore')
@observer
class LineEcharts extends React.Component<Props> {
drawChart = () => {
const { nameArr } = this.props
const option = {
tooltip: {
trigger: 'axis',
axisPointer: {
lineStyle: {
color: 'rgba(24,144,255,0.2)',
},
},
formatter: (params: Params) => {
let tip = ``
if (params.length) {
tip += params[0].axisValue + '<br/>'
}
if (params.length && params.length === 1) {
tip +=
params[0].marker +
params[0].seriesName +
' :' +
params[0].data +
'<br>'
}
if (params.length > 1) {
let num = params[0].data - params[1].data
let rate = ((num / params[1].data) * 100).toFixed(2)
if (num === 0) {
rate = `0%`
} else {
rate = `${rate}%`
}
for (let i = 0; i < params.length; i++) {
if (nameArr && nameArr.length) {
params[i].seriesName = nameArr[i]
tip +=
params[i].marker +
params[i].seriesName +
' :' +
params[i].data +
'<br>'
}
}
tip += `变化:${num}(${rate})`
}
return tip
},
},
grid: {
left: '3%',
right: '6%',
bottom: '10%',
containLabel: true,
},
xAxis: {
axisLabel: {
textStyle: {
color: '#999',
},
},
type: 'category',
boundaryGap: true,
data: range(24).map(hour => `${hour}:00`),
axisTick: {
show: false,
},
axisLine: {
show: true,
lineStyle: {
color: '#ccc',
width: 1,
},
},
},
yAxis: [
{
type: 'value',
name: '',
min: 0,
max: 12000,
interval: 3000,
axisLabel: {
formatter: '{value}',
},
axisTick: {
show: false,
},
axisLine: {
show: true,
lineStyle: {
color: '#ccc',
width: 1,
},
},
splitLine: {
show: true,
lineStyle: {
color: '#eee',
},
},
},
{
type: 'value',
name: '',
min: 0,
max: 150,
interval: 50,
axisLabel: {
formatter: '{value}',
},
axisTick: {
show: false,
},
axisLine: {
show: true,
lineStyle: {
color: '#ccc',
width: 1,
},
},
splitLine: {
show: true,
lineStyle: {
color: '#eee',
},
},
},
],
series: this.handlData,
}
return option
} // 注意这儿: 添加了get 错误消失了
get handlData() {
let series: Series[] = []
let { dataArr, nameArr, colors } = this.props
dataArr.map((itm, i) => {
let serie = {
name: nameArr[i],
type: 'line',
symbol: 'circle',
color: colors[i],
symbolSize: 4,
itemStyle: {
normal: {
lineStyle: {
width: 2,
color: colors[i],
},
},
},
data: dataArr[i],
}
series.push(serie)
})
return series
}
render() {
return (
<div>
<Loading loading={false}>
// 如果serie需要自定义,而且是可添加或删减的,可以使用 notMerge 使之不合并,从而及时更新数据
<ReactEcharts notMerge option={this.drawChart()} />
</Loading>
</div>
)
}
} export default LineEcharts export interface Props {
reportUIStore?: ReportUIStore
dataArr: number[][]
nameArr: string[]
colors: string[]
} export interface Params {
param: ParamsSingle[]
length: number
} export interface ParamsSingle {
seriesName: string
// 数据名,类目名
name: string
// 传入的原始数据项
data: Object
// 数据图形的颜色
color: string
marker: string
} export interface Series {
name: string,
type: string,
symbol: string,
color: string,
symbolSize: number,
itemStyle: {
normal: {
lineStyle: {
width: number,
color: string
}
}
},
data: number[],
}