反应数据网格 - 使用全局变量更改单元格值

Question

我正在尝试在我的反应数据网格中创建某个功能。

我有一个名为subStart的列，我有一个我想使用的下拉列表，以便用户可以将单元格的值设置为状态变量的值(this.state.timeTotalSec(。 因此，如果用户单击"开始时间"单元格中的"使用全局时间"选项，它将用this.state.timeTotalSec的值替换该单元格的值。我到底该怎么做？

我有下拉功能工作。但是如何让它更改单元格值？

const rows = [
{ id: 1, subStart: "00:00.000", subEnd: "00:00.000" , subText: 'Text1'},
{ id: 2, subStart: "00:00.000", subEnd: "00:00.000" , subText: 'Text2'},
{ id: 3, subStart: "00:00.000", subEnd: "00:00.000" , subText: 'Text3'}
];
const columns = [
{
key: "id",
name: "ID"
},
{
key: "subStart",
name: "Start Time",
editable: true
},
{
key: "subEnd",
name: "End Time",
editable: true
},
{
key: "subText",
name: "Text",
editable: true
}
].map(c => ({ ...c, ...defaultColumnProperties }));
const subStartActions = [
{
icon: <span className="glyphicon glyphicon-remove" />,
callback: () => {
alert("Deleting");
}
},
{
icon: "glyphicon glyphicon-link",
actions: [
{
text: "Use Global Time",
callback: () => {
// TODO
// **** TRYING TO MAKE THIS WORK ****
}
}
]
}
];
function getCellActions(column, row) {
const cellActions = {
subStart: subStartActions
};
return row.id % 2 === 0 ? cellActions[column.key] : null;
}
const ROW_COUNT = 50;
class App extends React.Component {
constructor (props) {
super(props)
this.state = {
playing: false,
duration: 0,
timeMilli: 0,
timeSec: 0,
timeMin: 0,
timeTotalSec: 0,
rows
}
}
onDuration = (duration) => {
this.setState({ duration })
}
onProgress = (progress) => {
if (this.state.duration == 0) {
return
}
const timeTotalSec = progress.played * this.state.duration
if (timeTotalSec !== this.state.timeTotalSec) {
const timeMin = Math.floor(timeTotalSec / 60)
const timeSec = Math.floor(timeTotalSec - (timeMin)*60)
const timeMilli = (timeTotalSec - timeSec - timeMin*60).toFixed(3)
this.setState({ timeTotalSec })
this.setState({ timeMin })
this.setState({ timeSec })
this.setState({ timeMilli })
}
} 
onGridRowsUpdated = ({ fromRow, toRow, updated }) => {
this.setState(state => {
const rows = state.rows.slice();
for (let i = fromRow; i <= toRow; i++) {
rows[i] = { ...rows[i], ...updated };
}
return { rows };
});
};

render () {
const { data } = this;

return (
<div className='player-wrapper'>
<ReactPlayer
url='https://www.youtube.com/watch?v=lhlZkqEag7E'
className='react-player'
playing={this.state.playing}
onPlay={() => this.setState({ playing: true })}
onPause={() => this.setState({ playing: false })}
controls='True'
onDuration={this.onDuration}
onProgress={this.onProgress}
/>
Video is currently: {this.state.playing ? 'playing' : 'paused'}
<br />
Duration: {Math.round(this.state.duration).toString() + ' seconds'}
<br />
Elapsed: {this.state.timeMin + 'min ' + this.state.timeSec + 'sec ' + 
this.state.timeMilli + 'ms'}
<br />
<button onClick={() => this.setState({ playing: true })}>Play</button>
<button onClick={() => this.setState({ playing: false })}>Pause</button>
<ButtonToolbar>
<Button variant="primary" onClick={() => this.setState(this.state.playing ? false : true)}>Play/Pause</Button>
</ButtonToolbar>
<ReactDataGrid
columns={columns}
rowGetter={i => this.state.rows[i]}
rowsCount={ROW_COUNT}
// minHeight={500}
getCellActions={getCellActions}
onGridRowsUpdated={this.onGridRowsUpdated}
enableCellSelect={true}
/>
</div>
)
}
}

Answer 1

ReactDataGrid 只会呈现您传递给它的数据，如果要更改单元格的值，则应更新数据源中的行或状态，或者您正在 using.in 您的案例rows

this.state = {
playing: false,
duration: 0,
timeMilli: 0,
timeSec: 0,
timeMin: 0,
timeTotalSec: 10,
rows // your datasourse
};

我想，id是您的数据键。将 updateRowDate 添加到操作中以处理您的状态更改。

actions: [
{
text: "Use Global Time",
callback: () => {
// TODO
// **** TRYING TO MAKE THIS WORK ****
updateRowDate(row.id);
}
}
]

这是应用程序组件中的updateRowDate

updateRowDate = rowId => {
this.setState(prv => ({
rows: prv.rows.map(q => {
if (q.id === rowId) return { ...q, subStart: this.state.timeTotalSec };
return q;
})
}));

最后，您需要将updateRowDate传递给getCellActions

<ReactDataGrid
columns={columns}
rowGetter={i => this.state.rows[i]}
rowsCount={ROW_COUNT}
// minHeight={500}
getCellActions={(column, row) =>
getCellActions(column, row, this.updateRowDate)
}
onGridRowsUpdated={this.onGridRowsUpdated}
enableCellSelect={true}
/>

这是包含固定版本的临时沙盒