【发布时间】:2020-07-12 16:01:40
【问题描述】:
我渲染了一个 React 列表,每个列表项中都有一个编辑按钮。我想切换以从数据切换到输入表单并返回。类似于本文中的这个应用程序:https://medium.com/the-andela-way/handling-user-input-in-react-crud-1396e51a70bf。您可以通过以下方式查看演示:https://codesandbox.io/s/fragrant-tree-0t13x。
这是我的 React 组件显示列表的地方:
import React, { Component } from "react";
import PriceBox from "../SinglePricebox/index";
// import SecurityForm from "../SecurityForm/index";
import AddPriceForm from "../AddPriceForm/index";
// import { uuid } from "uuidv4";
export default class PriceForm extends Component {
constructor(props) {
super(props);
this.state = {
priceArr: this.props.pricelist,
// newPriceArr: this.props.updatePrice,
showPricePopup: false,
addPricePopup: false,
isToggleOn: true,
date: props.date || "",
number: props.number || ""
};
}
updateInput = ({ target: { name, value } }) =>
this.setState({ [name]: value });
togglePopup = () => {
this.setState(prevState => ({
showPopup: !prevState.showPopup
}));
};
togglePricePopup = () => {
this.setState(prevState => ({
showPricePopup: !prevState.showPricePopup
}));
};
addPricePopup = () => {
this.setState(prevState => ({
addPricePopup: !prevState.addPricePopup
}));
};
/* adds a new price to the list */
addPrice = newPrice => {
this.setState(prevState => ({
addPricePopup: !prevState.addPricePopup,
// spreads out the previous list and adds the new price with a unique id
priceArr: [...prevState.priceArr, { ...newPrice }]
}));
};
// handlePriceSubmission = () => {
// const { updatePrice } = this.props;
// this.addPricePopup();
// updatePrice(priceArr);
// };
toggleItemEditing = (index) => {
this.setState(prevState => ({
priceArr: prevState.priceArr.map(priceItem => {
// isToggleOn: !state.isToggleOn;
})
}));
};
// toggleItemEditing = index => {
// this.setState({
// items: this.state.items.map((item, itemIndex) => {
// if (itemIndex === index) {
// return {
// ...item,
// isEditing: !item.isEditing
// }
// }
// return item;
// })
// });
// };
render() {
// const { updatePrice } = this.props;
return (
<div className="popup">
<div className="popup-inner">
<div className="price-form">
<h2>Prices</h2>
<div className="scroll-box">
{this.state.priceArr.map((props) => (
<PriceBox
{...props}
key={props.date}
// toggleItemEditing={this.toggleItemEditing()}
onChange={this.handleItemUpdate}
/>
))}
</div>
<div className="buttons-box flex-content-between">
<button
type="button"
onClick={this.addPricePopup}
className="btn add-button">Add +</button>
{this.state.addPricePopup && (
<AddPriceForm
addPrice={this.addPrice}
cancelPopup={this.addPricePopup}
/>
)}
<div className="add-btns">
<button
type="button"
onClick={() => this.props.closeUpdatePopup()}
className="btn cancel-button"
>
Close
</button>
</div>
</div>
</div>
</div>
</div>
);
}
}
上面组件里面的列表是:
<div className="scroll-box">
{this.state.priceArr.map((props) => (
<PriceBox
{...props}
key={props.date}
// toggleItemEditing={this.toggleItemEditing()}
onChange={this.handleItemUpdate}
/>
))}
</div>
这是单个列表项:
import React, { Component } from "react";
export default class SinglePricebox extends Component {
state = {
showPopup: false, //don't show popup
todaydate: this.props.date
};
/* toggle and close popup edit form window */
togglePopup = () => {
this.setState(prevState => ({
showPopup: !prevState.showPopup
}));
};
toggleEditPriceSubmission = getPriceIndex => {
const { toggleItemEditing, date } = this.props;
// toggle the pop up (close)
// this.showPopup();
toggleItemEditing({ ...getPriceIndex, date });
console.log("date?", date);
};
/* handles edit current security form submissions */
// handleEditSecuritySubmission = editSecurity => {
// const { editCurrentSecurity, id } = this.props;
// // toggle the pop up (close)
// this.togglePopup();
// // sends the editSecurity fields (name, isin, country) + id back to
// // App's "this.editCurrentSecurity"
// editCurrentSecurity({ ...editSecurity, id });
// };
render() {
return (
<div className="pricebox">
<article className="pricetable">
{this.toggleEditPriceSubmission
? "editing" : "not editing"}
<table>
<tbody>
<tr>
<td className="date-width">{this.props.date}</td>
<td className="price-width">{this.props.number}</td>
<td className="editing-btn">
<button
type="button"
className="edit-btn"
onClick={this.toggleEditPriceSubmission}
>
{this.toggleEditPriceSubmission ? "Save" : "Edit"}
</button>
</td>
<td>
<button
type="button"
className="delete-btn">
X
</button>
</td>
</tr>
</tbody>
</table>
</article>
</div>
);
}
}
我整个下午都在努力切换每个列表项中的编辑按钮。我试图获取每个列表项的键,即this.prop.date。
您可以在 CodeSandBox 中查看我的详细代码:https://codesandbox.io/s/github/kikidesignnet/caissa
【问题讨论】:
-
您好,您喜欢使用简单的表单而不是模态框?
-
??我正在尝试创建一个切换功能来在表单和文本框之间切换
-
@KristinaBressler 你能提供一个minimal reproducible example 可能有很大帮助吗?
标签: javascript reactjs