英文:
How to delete a specific row in Material UI DataGrid (Reactjs)
问题
import React, { Component } from 'react';
import { DataGrid } from '@material-ui/data-grid';
import Button from '@material-ui/core/Button';
const columns = [
{ field: 'id', headerName: 'ID', width: 70 },
{ field: 'firstName', headerName: 'First name', width: 130 },
{ field: 'lastName', headerName: 'Last name', width: 130 },
{
field: 'age',
headerName: 'Age',
type: 'number',
width: 90,
},
{
field: 'fullName',
headerName: 'Full name',
description: 'This column has a value getter and is not sortable.',
sortable: false,
width: 160,
valueGetter: (params) =>
`${params.getValue('firstName') || ''} ${params.getValue('lastName') || ''}`,
},
{ field: 'city', headerName: 'City', width: 100 },
{ field: 'state', headerName: 'State', width: 100 },
];
const rows = [
// ... (sample JSON data)
];
class ElgibleContracts extends Component {
getInfo = () => {
// Logic to handle row deletion and tracking
};
render() {
return (
<div style={{ textAlign: 'center' }}>
<h1 style={{ fontFamily: 'Stone' }}>Elgible Contracts</h1>
<span className="horizontal-line" />
<div className="centerDiv" style={{ height: 380, width: 950 }}>
<DataGrid rows={rows} columns={columns} pageSize={10} checkboxSelection />
</div>
<br />
<Button variant="contained" color="primary" onClick={this.getInfo}>
Purge
</Button>
</div>
);
}
}
export default ElgibleContracts;
Note: The code provided doesn't include the logic for handling row deletion and tracking, as it seems that this is the part you're struggling with. You would need to implement the getInfo
method inside the ElgibleContracts
component to achieve the desired functionality.
英文:
I'm starting this project in react & currently it's going well.
However, I'm having an issue.
My desired functionality is this: I desire to delete every row that you see where the checkbox for that row is clicked. For example, if I click the checkbox in rows 1 & 3, I want rows 1 & 3 to be deleted. I also want to keep track of the rows that I decide to delete.
The issue is that I have no idea how to do that, and even after doing research I still feel stuck on how to approach this problem.
Currently I'm populating this table with some sample JSON data I found online, so don't mind the weird data that's present. Also, if anybody has recommendations for an easier or cleaner way to achieve this, then feel free to let me know about it in the comments.
Here's the code:
import React, { Component } from 'react';
import { DataGrid } from '@material-ui/data-grid';
import Button from '@material-ui/core/Button';
const columns = [
{ field: 'id', headerName: 'ID', width: 70 },
{ field: 'firstName', headerName: 'First name', width: 130 },
{ field: 'lastName', headerName: 'Last name', width: 130 },
{
field: 'age',
headerName: 'Age',
type: 'number',
width: 90,
},
{
field: 'fullName',
headerName: 'Full name',
description: 'This column has a value getter and is not sortable.',
sortable: false,
width: 160,
valueGetter: (params) =>
`${params.getValue('firstName') || ''} ${params.getValue('lastName') || ''}`,
},
{ field: 'city', headerName: 'City', width: 100 },
{ field: 'state', headerName: 'State', width: 100 },
];
const rows = [
{ id: 1, lastName: 'Snow', firstName: 'Jon', age: 35, city: 'Milwaukee', state: 'Wisconsin' },
{ id: 2, lastName: 'Lannister', firstName: 'Cersei', age: 42, city: 'Dubuque', state: 'Iowa' },
{ id: 3, lastName: 'Lannister', firstName: 'Jaime', age: 45, city: 'Appleton', state: 'Wisconsin'},
{ id: 4, lastName: 'Stark', firstName: 'Arya', age: 16, city: 'Madison', state: 'Wisconsin' },
{ id: 5, lastName: 'Targaryenmnsdlfbsjbgjksbgksbfksfgbk', firstName: 'Daenerys', age: null, city: 'Green Bay', state: 'Wisconsin' },
{ id: 6, lastName: 'Melisandre', firstName: null, age: 150, city: 'San Antonio', state: 'Texas' },
{ id: 7, lastName: 'Clifford', firstName: 'Ferrara', age: 44, city: 'Dallas', state: 'Texas' },
{ id: 8, lastName: 'Frances', firstName: 'Rossini', age: 36, city: 'Brooklyn', state: 'New York' },
{ id: 9, lastName: 'Roxie', firstName: 'Harvey', age: 65, city: 'Toledo', state: 'Ohio' },
{ id: 10, lastName: 'Larry', firstName: 'King', age: 105, city: 'Chicago', state: 'Illiniois' },
{ id: 11, lastName: 'Snow', firstName: 'Jon', age: 35, city: 'Milwaukee', state: 'Wisconsin' },
{ id: 12, lastName: 'Lannister', firstName: 'Cersei', age: 42, city: 'Dubuque', state: 'Iowa' },
{ id: 13, lastName: 'Lannister', firstName: 'Jaime', age: 45, city: 'Appleton', state: 'Wisconsin'},
{ id: 14, lastName: 'Stark', firstName: 'Arya', age: 16, city: 'Madison', state: 'Wisconsin' },
{ id: 15, lastName: 'Targaryenmnsdlfbsjbgjksbgksbfksfgbk', firstName: 'Daenerys', age: null, city: 'Green Bay', state: 'Wisconsin' },
{ id: 16, lastName: 'Melisandre', firstName: null, age: 150, city: 'San Antonio', state: 'Texas' },
{ id: 17, lastName: 'Clifford', firstName: 'Ferrara', age: 44, city: 'Dallas', state: 'Texas' },
{ id: 18, lastName: 'Frances', firstName: 'Rossini', age: 36, city: 'Brooklyn', state: 'New York' },
{ id: 19, lastName: 'Roxie', firstName: 'Harvey', age: 65, city: 'Toledo', state: 'Ohio' },
{ id: 20, lastName: 'Larry', firstName: 'King', age: 105, city: 'Chicago', state: 'Illiniois' },
];
class ElgibleContracts extends Component {
render(){
return (
<div style={{textAlign: "center"}}>
<h1 style={{fontFamily: "Stone"}}>Elgible Contracts</h1>
<span className="horizontal-line" />
<div className="centerDiv" style={{ height: 380, width: 950}}>
<DataGrid rows={rows} columns={columns} pageSize={10} checkboxSelection />
</div>
<br />
<Button variant="contained" color="primary" onClick={this.getInfo} >Purge</Button>
</div>
)
}
}
export default ElgibleContracts;
答案1
得分: 3
我为此创建了一个沙盒:https://codesandbox.io/s/heuristic-davinci-n3vrz?file=/src/App.js
我使用了函数组件和钩子,因为这是现今的最佳实践。
const [rows, setRows] = useState(data);
const [deletedRows, setDeletedRows] = useState([]);
const handleRowSelection = (e) => {
setDeletedRows([...deletedRows, ...rows.filter((r) => r.id === e.data.id)]);
};
const handlePurge = () => {
setRows(
rows.filter((r) => deletedRows.filter((sr) => sr.id === r.id).length < 1)
);
};
return (
<div style={{ textAlign: "center" }}>
<h1 style={{ fontFamily: "Stone" }}>Eligible Contracts</h1>
<span className="horizontal-line" />
<div className="centerDiv" style={{ height: 380, width: 950 }}>
<DataGrid
rows={rows}
columns={columns}
pageSize={10}
checkboxSelection
onRowSelected={handleRowSelection}
/>
</div>
<br />
<Button variant="contained" color="primary" onClick={handlePurge}>
Purge
</Button>
</div>
);
英文:
I created a sandbox for this: https://codesandbox.io/s/heuristic-davinci-n3vrz?file=/src/App.js
I used functional components and hooks since this is best practice nowadays.
const [rows, setRows] = useState(data);
const [deletedRows, setDeletedRows] = useState([]);
const handleRowSelection = (e) => {
setDeletedRows([...deletedRows, ...rows.filter((r) => r.id === e.data.id)]);
};
const handlePurge = () => {
setRows(
rows.filter((r) => deletedRows.filter((sr) => sr.id === r.id).length < 1)
);
};
return (
<div style={{ textAlign: "center" }}>
<h1 style={{ fontFamily: "Stone" }}>Elgible Contracts</h1>
<span className="horizontal-line" />
<div className="centerDiv" style={{ height: 380, width: 950 }}>
<DataGrid
rows={rows}
columns={columns}
pageSize={10}
checkboxSelection
onRowSelected={handleRowSelection}
/>
</div>
<br />
<Button variant="contained" color="primary" onClick={handlePurge}>
Purge
</Button>
答案2
得分: 1
const ElgibleContracts = () => {
const [items, setItems] = React.useState(rows);
const [selection, setSelection] = React.useState([]);
const [deleted, setDeleted] = React.useState([]);
const handlePurge = () => {
setDeleted([...deleted, ...selection]);
setItems(items.filter(i => !selection.some(s => s.id === i.id)));
setSelection([]);
};
console.log("Here are deleted items", deleted);
return (
<div style={{ textAlign: "center" }}>
<h1 style={{ fontFamily: "Stone" }}>Eligible Contracts</h1>
<span className="horizontal-line" />
<div className="centerDiv" style={{ height: 380, width: 950 }}>
<DataGrid
onSelectionChange={(newSelection) => {
setSelection(newSelection.rows);
}}
rows={items}
columns={columns}
pageSize={10}
checkboxSelection
/>
</div>
<br />
<Button variant="contained" color="primary" onClick={handlePurge}>Purge</Button>
</div>
);
};
英文:
const ElgibleContracts = () => {
const [items, setItems] = React.useState(rows)
const [selection, setSelection] = React.useState([]);
const [deleted, setDeleted] = React.useState([])
const handlePurge = () => {
setDeleted([...deleted, ...selection])
setItems(items.filter(i=> !selection.some(s=> s.id === i.id)))
setSelection([])
}
console.log("Here are deleted items",deleted)
return (
<div style={{textAlign: "center"}}>
<h1 style={{fontFamily: "Stone"}}>Elgible Contracts</h1>
<span className="horizontal-line" />
<div className="centerDiv" style={{ height: 380, width: 950}}>
<DataGrid onSelectionChange={(newSelection) => {
setSelection(newSelection.rows);
}} rows={items} columns={columns} pageSize={10} checkboxSelection />
</div>
<br />
<Button variant="contained" color="primary" onClick={handlePurge} >Purge</Button>
</div>
)
}
答案3
得分: 0
onRowSelected
的使用可能会很快出现错误,因为当在DataGrid
中取消选择项目时,您必须重置deletedRows
。这就是为什么我建议使用onSelectionModelChange
:
const [rows, setRows] = useState(data);
const [deletedRows, setDeletedRows] = useState([]);
<DataGrid
checkboxSelection
columns={columns}
pageSize={5}
onSelectionModelChange={({selectionModel}) => {
const rowIds = selectionModel.map(rowId => parseInt(String(rowId), 10));
const rowsToDelete = rows.filter(row => rowIds.includes(row.id));
setDeletedRows(rowsToDelete);
}}
rows={rows}
/>
英文:
The usage of onRowSelected
can end up in errors quickly because you have to reset the deletedRows
when unselecting items in the DataGrid
. That's why I suggest to make use of onSelectionModelChange
:
const [rows, setRows] = useState(data);
const [deletedRows, setDeletedRows] = useState([]);
<DataGrid
checkboxSelection
columns={columns}
pageSize={5}
onSelectionModelChange={({selectionModel}) => {
const rowIds = selectionModel.map(rowId => parseInt(String(rowId), 10));
const rowsToDelete = rows.filter(row => rowIds.includes(row.id));
setDeletedRows(rowsToDelete);
}}
rows={rows}
/>
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