【发布时间】：2020-10-15 06:39:10
【问题描述】：
我有一个表单，当我提交数据时，它会发送到服务器并在表格中显示数据.. 在我有编辑按钮的表中，当单击编辑按钮时，数据应绑定到表单。 在这里我无法绑定 Inputs 字段，但不能绑定 Radio 和 Checkboxes...
const Form = () => {
const [data, setdata] = useState({
"UserName" : "",
"dropDown" :"",
"gender" : "",
"checking" :""
})
const [update, setUpdate] = useState([])
const handleChange =(e)=>{
if(e.target.name !=="gender" && e.target.name !=="checking"){
setdata({...data,[e.target.name]:e.target.value});
}else if(e.target.name ==="gender"){
let allgenders = document.getElementsByName("gender");
allgenders.forEach((allradio)=>{
if(allradio.checked){
setdata({...data,[e.target.name]:e.target.value});
}
})
}else if(e.target.name ==="checking"){
let getallCheckboxes =[];
let allCheckboxes =document.getElementsByName("checking");
allCheckboxes.forEach((allchecks)=>{
if(allchecks.checked){
getallCheckboxes.push(allchecks.value)
}
});
setdata({...data,[e.target.name]:getallCheckboxes});
}
}
useEffect(() => {
getAllData();
}, [])
const handleSubmit=(e)=>{
e.preventDefault();
// setUpdate({...data,update});
// console.log(data);
axios.post('http://localhost:3000/users',data).then((res)=>{
// console.log("user added successfully");
getAllData();
handleClear();
})
}
const getAllData=()=>{
axios.get('http://localhost:3000/users').then((res)=>{
setUpdate(res.data);
})
}
const deleteUser=(dating)=>{
console.log(dating);
axios.delete('http://localhost:3000/users/'+dating.id).then(res=>{
getAllData();
})
}
这是编辑和更新的功能，在这里我可以绑定输入字段，但不能绑定单选和复选框...
const editUser=(userData)=>{
setdata(userData)
}
const handleEdit=()=>{
console.log(data);
axios.put('http://localhost:3000/users/'+data.id,data).then(res=>{
getAllData();
})
}
return (
<React.Fragment>
<h1>LordShiva</h1>
<div className="container mt-3">
<div className="row">
<div className="col-md-6">
<div className="card">
<div className="card-header bg-success text-white">
<h4>Form</h4>
<form>
<div className="form-group">
<input type="text" className="form-control" placeholder='UserName' name="UserName" value={data.UserName} onChange={handleChange} />
</div>
<div className="form-group">
<input name="phone" className="form-control" placeholder='PhoneNumber' name="PhoneNumber" value={data.PhoneNumber} onChange={handleChange} />
</div>
<div className="form-group">
<input name="email" className="form-control" placeholder='Email' value={data.email} onChange={handleChange} />
</div>
<div className="form-group">
<select name="dropDown" value={data.dropDown} onChange={handleChange} className="form-control" >
<option value=""></option>
<option value="Reactjs">ReactJS</option>
<option value="JS">JavaScript</option>
<option value="csCSSs">CSS</option>
<option value="HTML">HTML</option>
</select>
</div>
<div class="form-row">
<div className="form-group col-md-6">
<label className="font-weight-bold">Gender : </label>
<span className="font-weight-bold" > Male <input type="radio" name="gender" value={data.gender} onChange={handleChange}/></span>
<span className="font-weight-bold" > Female <input type="radio" name="gender" value={data.gender} onChange={handleChange} /></span>
</div>
<div class="form-check col-md-6">
<label class="form-check-label" for="gridCheck">Course</label><br />
<input type="checkbox" value="HTML" name="checking" value={data.checking} onChange={handleChange} /> HTML <br />
<input type="checkbox" value="JavaScript" name="checking" value={data.checking} onChange={handleChange} /> JavaScript <br />
<input type="checkbox" value="ReactJS" name="checking" value={data.checking} onChange={handleChange} /> ReactJS <br />
<input type="checkbox" value="CSS" name="checking" value={data.checking} onChange={handleChange} /> CSS <br />
</div>
<div className="form-row">
<button className="btn btn-cyan" type="button" onClick={handleSubmit}>Submit</button>
<button className="btn btn-cyan" type="button" onClick={handleEdit}>UpdateData</button>
</div>
</div>
</form>
</div>
</div>
</div>
<div className="col-md-12">
<div className="card mt-5">
<div className="card-header blue-gradient text-white">
<h4>FormDetails</h4>
<div>
<div className="row mt-3">
<div className="col">
<div className="table table-hover table-striped text-center table-primary">
<thead className="bg-dark text-white font-weight-bold">
<tr>
<th>UserName</th>
<th>DropDownValue</th>
<th>Gender</th>
<th>CheckboxValue</th>
<th>EDIT</th>
<th>DELETE</th>
</tr>
</thead>
<tbody>
{
update.map(emp => {
return(
<tr>
<td>{emp.UserName} </td>
<td>{emp.gender}</td>
<td>{emp.checking}</td>
<td><button className="btn btn-cyan font-weight-bold" onClick={()=>{editUser(emp)}}>Edit</button></td>
<td><button className="btn btn-green font-weight-bold" onClick={()=>{deleteUser(emp)}}>Delete</button></td>
</tr>
)
})
}
</tbody>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</React.Fragment >
)
}
【问题讨论】：
标签： react-hooks