Reactjs 如何将数据从对话框传递到父组件中定义的表。?
我有一个根组件。从此我进入欢迎页面,该页面显示已以表格格式注册的用户的详细信息。有一个注册按钮。 单击“注册”按钮后,将打开一个对话框,询问新用户的详细信息。我的要求是,当我在“注册”框中提供详细信息时,数据应从对话框流向“欢迎页面”表(如CRUD表单)。 这是我的密码:Reactjs 如何将数据从对话框传递到父组件中定义的表。?,reactjs,Reactjs,我有一个根组件。从此我进入欢迎页面,该页面显示已以表格格式注册的用户的详细信息。有一个注册按钮。 单击“注册”按钮后,将打开一个对话框,询问新用户的详细信息。我的要求是,当我在“注册”框中提供详细信息时,数据应从对话框流向“欢迎页面”表(如CRUD表单)。 这是我的密码: import React, { Component } from 'react'; import './Todo.css' import FormDialog from './FormDialog' import Dia
import React, { Component } from 'react';
import './Todo.css'
import FormDialog from './FormDialog'
import Dialog from '@material-ui/core/Dialog';
import { thisExpression } from '@babel/types';
class Todo extends Component {
state = { edit: false, id: null,view:false,
students: [
{ id: 1, name: 'Wasif', age: 21, email: 'wasif@email.com' },
{ id: 2, name: 'Ali', age: 19, email: 'ali@email.com' },
{ id: 3, name: 'Saad', age: 16, email: 'saad@email.com' },
{ id: 4, name: 'Asad', age: 25, email: 'asad@email.com' },
{ id: 5, name: 'kiwi', age: 20, email: 'kiwi@email.com' }
], }
onDeleteHandle() {let id = arguments[0];
this.setState({students:this.state.students.filter(item => {if (item.id !== id)
{return item;}})});}
onUpdateHandle(event){
event.preventDefault();
this.setState({students: this.state.students.map(item => {
if (item.id === this.state.id){
item['id'] = event.target.updatedItem.value;
item['name']=event.target.updatedItem1.value;
item['age']=event.target.updatedItem2.value;
item['email']=event.target.updatedItem3.value;
}return item;})})
this.setState({edit: false});
}
signUpDialog(){
this.setState({view:true})
}
renderEditForm() {
if (this.state.edit) {
return <form onSubmit={this.onUpdateHandle.bind(this)}>
<input type="text" name="updatedItem" className="item" defaultValue={this.state.id} />
<input type="text" name="updatedItem1" className="item" defaultValue={this.state.name} />
<input type="text" name="updatedItem2" className="item" defaultValue={this.state.age} />
<input type="text" name="updatedItem3" className="item" defaultValue={this.state.email} />
<button className="update-add-item">Update</button>
</form> } }
onEditHandle(event) {
this.setState({edit: true,id: arguments[0],name:arguments[1],age:arguments[2],email:arguments[3]});}
onSubmitHandle(event) {
event.preventDefault();
this.setState({students: [...this.state.students, {id:event.target.id.value,name: event.target.item.value,age:event.target.xyz.value,email:event.target.email.value}] })
event.target.item.value = '';
event.target.id.value = parseInt(event.target.id.value)+parseInt(1);
event.target.email.value = '';
event.target.xyz.value = ''};
render()
{
return<div style={{width: "500px",background : "beige"}} >
<button onClick={this.signUpDialog.bind(this)}>Sign-UP</button>
{this.state.view? <FormDialog/> :null}
<table>{this.state.students.map(abc => (<tr><td>{abc.id}</td><td>{abc.name}</td><td>{abc.age}</td><td>{abc.email}</td><td>
<button onClick={this.onDeleteHandle.bind(this, abc.id)}>Delete</button></td>
<button onClick={this.onEditHandle.bind(this,abc.id,abc.name,abc.age,abc.email)}>Edit</button>
</tr>))}</table></div>
}
}
export default Todo;
import React,{Component}来自'React';
导入“./Todo.css”
从“./FormDialog”导入FormDialog
从“@material ui/core/Dialog”导入对话框;
从'@babel/types'导入{thisExpression};
类Todo扩展组件{
状态={edit:false,id:null,view:false,
学生:[
{id:1,姓名:'Wasif',年龄:21岁,电子邮件:'wasif@email.com' },
{id:2,姓名:'Ali',年龄:19岁,电子邮件:'ali@email.com' },
{id:3,姓名:'Saad',年龄:16岁,电子邮件:'saad@email.com' },
{id:4,姓名:'Asad',年龄:25岁,电子邮件:'asad@email.com' },
{id:5,姓名:'kiwi',年龄:20岁,电子邮件:'kiwi@email.com' }
], }
onDeleteHandle(){let id=参数[0];
this.setState({students:this.state.students.filter(item=>{if(item.id!==id))
{return item;}}}});}
onUpdateHandle(事件){
event.preventDefault();
this.setState({students:this.state.students.map(item=>{
if(item.id==this.state.id){
项['id']=event.target.updateItem.value;
项['name']=event.target.updatedItem1.value;
item['age']=event.target.updateItem2.value;
项['email']=event.target.updateItem3.value;
}返回项;})})
this.setState({edit:false});
}
注册对话框(){
this.setState({view:true})
}
renderditform(){
if(this.state.edit){
返回
更新
} }
onEditHandle(事件){
this.setState({edit:true,id:arguments[0],name:arguments[1],age:arguments[2],email:arguments[3]});}
onSubmitHandle(事件){
event.preventDefault();
this.setState({students:[…this.state.students,{id:event.target.id.value,name:event.target.item.value,age:event.target.xyz.value,email:event.target.email.value}]})
event.target.item.value='';
event.target.id.value=parseInt(event.target.id.value)+parseInt(1);
event.target.email.value='';
event.target.xyz.value=''};
render()
{
返回
报名
{this.state.view?:null}
{this.state.students.map(abc=>({abc.id}{abc.name}{abc.age}{abc.email}
删除
编辑
))}
}
}
导出默认Todo;
以下是对话框组件:
import React, {Component} from 'react';
import Button from '@material-ui/core/Button';
import TextField from '@material-ui/core/TextField';
import Dialog from '@material-ui/core/Dialog';
import DialogActions from '@material-ui/core/DialogActions';
import DialogContent from '@material-ui/core/DialogContent';
import DialogContentText from '@material-ui/core/DialogContentText';
import DialogTitle from '@material-ui/core/DialogTitle';
class FormDialog extends Component{
constructor(props) {
super(props);
this.state = {edit: false,
view: true,
students: [
{ id: 1, name: 'Wasif', age: 21, email: 'wasif@email.com' },
{ id: 2, name: 'Ali', age: 19, email: 'ali@email.com' },
{ id: 3, name: 'Saad', age: 16, email: 'saad@email.com' },
{ id: 4, name: 'Asad', age: 25, email: 'asad@email.com' },
{ id: 5, name: 'kiwi', age: 20, email: 'kiwi@email.com' }
],
};
this.onSubmitHandle = this.onSubmitHandle.bind(this);
}
handleClose(){
this.setState({view:!this.state.view})
}
onDeleteHandle() {let id = arguments[0];
this.setState({students:this.state.students.filter(item => {if (item.id !== id)
{return item;}})});}
onEditHandle(event)
{
this.setState({edit:true,id: arguments[0],name:arguments[1],age:arguments[2],email:arguments[3]});
}
onUpdateHandle(event){
event.preventDefault();
this.setState({students: this.state.students.map(item => {
if (item.id === this.state.id){
item['id'] = event.target.updatedItem.value;
item['name']=event.target.updatedItem1.value;
item['age']=event.target.updatedItem2.value;
item['email']=event.target.updatedItem3.value;
}return item;})})
this.setState({edit: false});
}
renderEditForm() {
if (this.state.edit) {
return <form onSubmit={this.onUpdateHandle.bind(this)}>
<input type="text" name="updatedItem" className="item" defaultValue={this.state.id} />
<input type="text" name="updatedItem1" className="item" defaultValue={this.state.name} />
<input type="text" name="updatedItem2" className="item" defaultValue={this.state.age} />
<input type="text" name="updatedItem3" className="item" defaultValue={this.state.email} />
<button className="update-add-item">Update</button>
</form> } }
onSubmitHandle(event) {
event.preventDefault();
this.setState({students: [...this.state.students, {id:event.target.id.value,name: event.target.item.value,age:event.target.xyz.value,email:event.target.email.value}] })
event.target.item.value = '';
event.target.id.value = parseInt(event.target.id.value)+parseInt(1);
event.target.email.value = '';
event.target.xyz.value = '';
};
render() {
return (
<div>
<Dialog fullWidth open={this.state.view} onClose={this.handleClose.bind(this)}>
<DialogTitle>Sign Up Provide Details</DialogTitle>
<DialogContent>
{this.renderEditForm()}
<DialogContentText>
<div>
<form onSubmit={(e)=>this.onSubmitHandle(e)}>
<label >ID</label>
<input type="number" name="id" className="item" />
<label>Name</label>
<input type="text" name="item" className="item" />
<label>age</label>
<input type="number" name="xyz" className="item" />
<label>email</label>
<input type="text" name="email" className="item" />
<button className="btn-add-item">Add</button>
<table>{this.state.students.map(abc => (<tr><td>{abc.id}</td><td>{abc.name}</td><td>{abc.age}</td><td>{abc.email}</td>
<button onClick={this.onEditHandle.bind(this,abc.id,abc.name,abc.age,abc.email)}>Edit</button>
</tr>))}</table>
</form>
</div>
</DialogContentText>
</DialogContent>
<DialogActions>
<Button onClick={this.handleClose.bind(this)} color="primary">
Cancel
</Button>
</DialogActions>
</Dialog>
</div>
);
}
}
export default FormDialog;
import React,{Component}来自'React';
从“@material ui/core/Button”导入按钮;
从“@material ui/core/TextField”导入TextField;
从“@material ui/core/Dialog”导入对话框;
从“@material ui/core/DialogActions”导入DialogActions;
从“@material ui/core/DialogContent”导入DialogContent;
从“@material ui/core/DialogContentText”导入DialogContentText;
从“@material ui/core/DialogTitle”导入DialogTitle;
类FormDialog扩展组件{
建造师(道具){
超级(道具);
this.state={edit:false,
观点:没错,
学生:[
{id:1,姓名:'Wasif',年龄:21岁,电子邮件:'wasif@email.com' },
{id:2,姓名:'Ali',年龄:19岁,电子邮件:'ali@email.com' },
{id:3,姓名:'Saad',年龄:16岁,电子邮件:'saad@email.com' },
{id:4,姓名:'Asad',年龄:25岁,电子邮件:'asad@email.com' },
{id:5,姓名:'kiwi',年龄:20岁,电子邮件:'kiwi@email.com' }
],
};
this.onSubmitHandle=this.onSubmitHandle.bind(this);
}
handleClose(){
this.setState({view:!this.state.view})
}
onDeleteHandle(){let id=参数[0];
this.setState({students:this.state.students.filter(item=>{if(item.id!==id))
{return item;}}}});}
onEditHandle(事件)
{
this.setState({edit:true,id:arguments[0],name:arguments[1],age:arguments[2],email:arguments[3]});
}
onUpdateHandle(事件){
event.preventDefault();
this.setState({students:this.state.students.map(item=>{
if(item.id==this.state.id){
项['id']=event.target.updateItem.value;
项['name']=event.target.updatedItem1.value;
item['age']=event.target.updateItem2.value;
项['email']=event.target.updateItem3.value;
}返回项;})})
this.setState({edit:false});
}
renderditform(){
if(this.state.edit){
返回
更新
} }
onSubmitHandle(事件){
event.preventDefault();
this.setState({students:[…this.state.students,{id:event.target.id.value,name:event.target.item.value,age:event.target.xyz.value,email:event.target.email.value}]})
event.target.item.value='';
event.target.id.value=parseInt(event.target.id.value)+parseInt(1);
event.target.email.value='';
event.target.xyz.value='';
};
render(){
返回(
注册并提供详细信息
{this.renderditform()}
this.onSubmitHandle(e)}>
身份证件
名称
年龄
电子邮件
添加
{this.state.students.map(abc=>({abc.id}{abc.name}{abc.age}{abc.email}
编辑
))}
取消
);
}
}
导出默认窗体对话框;
您可以向自己传递回调函数
<FormDialog onFormSubmission={this.onFormSubmission}/>