我有一个动态表,并希望在选择产品名称后的每一行中显示价格,并在输入数量时显示总计(价格*数量)列。
我的问题是,当我为每一行选择产品名称时,表上的每一行都会显示相同的价格,同样,当我想要总显示时,它总是具有NaN,如下图所示:
我的代码:
class AjouterFacture extends Component {
constructor(props) {
super(props);
this.state = {
rowData: [],
Produits: [],
QuantiteF: "",
Prix: [],
id: 0,
};
this.handleSubmit = this.handleSubmit.bind(this);
this.handleRowDelete = this.handleRowDelete.bind(this);
this.handleRowAdd = this.handleRowAdd.bind(this);
this.handleselectChange = this.handleselectChange.bind(this);
this.PrixDisplay = this.PrixDisplay.bind(this);
}
componentWillReceiveProps(nextProps) {
console.log("nextProps", nextProps);
}
componentDidMount() {
axios({
method: "get",
url: "/app/getNomprod/",
withCredentials: true,
}).then(response => {
if (response && response.data) {
this.setState({
Produits: response.data
});
}
}).catch(error => console.log(error));
}
handleQuantiteChange(index, value) {
const rowDataCopy = this.state.rowData.slice(0);
rowDataCopy[index] = Object.assign({}, rowDataCopy[index], {
QuantiteF: parseInt(value, 10)
});
this.setState({
rowData: rowDataCopy
});
}
handleselectprdtChange(index, value) {
const rowDataCopy = this.state.rowData.slice(0);
rowDataCopy[index] = Object.assign({}, rowDataCopy[index], {
selectprdt: value
});
this.setState({
rowData: rowDataCopy,
});
render() {
let {
Clients
} = this.state.Clients;
var Cd = {
pointerEvents: 'none'
}
let {
Produits
} = this.state;
let {
rowData
} = this.state.rowData;
let {
Prix
} = this.state.Prix;
return (<div className="animated fadeIn">
<h6> <Label ><strong>Veuillez ajouter au moins un produit : </strong></Label></h6>
<Table responsive style={items} >
<thead style={back}>
<tr>
<th>PRODUIT</th>
<th>QUANTITE</th>
<th>PRIX UNITAIRE</th>
<th>TOTAL</th>
<th></th>
</tr>
</thead>
<tbody>
{this.state.rowData.map((data, index) => (
<tr key={index} id={index}>
<td>
{" "} <Input type="select" name="selectprdt" id="selectprdt"
placeholder="Veuillez sélectionner un produit" value={data.selectprdt}
onChange={(e) => this.handleselectprdtChange(index, e.target.value)} >
<option key={-1} hidden>Choisisr un produit</option>
{ this.state.Produits.map((pdt, i) =>
<option key={i}>{pdt.Nomp}</option>
)}
</Input>
</td>
<td><Input type="number"
value={data.QuantiteF || 0} onChange={(e) => this.handleQuantiteChange(index, e.target.value)}/></td>
<td>
{ this.state.Prix.map(pr =>
<p key={index} >{pr.PrixV} </p>
)}
</td>
<td >
<p key={index} className='pa2 mr2 f6'>{(data.QuantiteF || 0) * (parseInt(this.PrixDisplay(data.selectprdt)|| 0))} </p>
</td>
<td>
<Button onClick={(e) => this.handleRowDelete(index)} active style={center} size="sm" color="danger" className="btn-pill" aria-pressed="true">Effacer</Button>
</td>{" "}
</tr>
))}
<tr>
<td/>
<td/>
<td/>
<td/>
<td><Button onClick={this.handleRowAdd} active style={center} size="sm" color="info" className="btn-pill" aria-pressed="true">Ajouter une ligne</Button></td>
</tr>
</tbody>
</Table>
</div>
);
}
PrixDisplay(selectprdt) {
return axios.get("/app/getPrixprod/" + selectprdt).then(response => {
if (response && response.data) {
this.setState({
Prix: response.data
});
}
}).catch(error => {
console.error(error);
});
}
handleRowDelete(row) {
const rowDataCopy = this.state.rowData.slice(0);
rowDataCopy.splice(row, 1);
this.setState({
rowData: rowDataCopy
});
}
handleRowAdd() {
let id = this.state.id;
id = id++;
const rowDataCopy = this.state.rowData.slice(0);
rowDataCopy.push({
selectprdt: "",
QuantiteF: 0,
Prix: ""
});
this.setState({
rowData: rowDataCopy,
id: id
});
}
}
export default AjouterFacture;
我该如何解决?
答案 0 :(得分:1)
此外,作为建议,请查看Array的映射,过滤方法,然后尝试进行重构。这将使您的代码更加令人愉快和简洁。