Javascript 如何仅禁用一个编辑按钮
基本上,我想要的是,当我点击复选框时,它应该只禁用特定todo的编辑按钮,然而,当我点击复选框时,它会禁用todo列表中的整个编辑按钮。有人能推荐我吗Javascript 如何仅禁用一个编辑按钮,javascript,reactjs,material-ui,Javascript,Reactjs,Material Ui,基本上,我想要的是,当我点击复选框时,它应该只禁用特定todo的编辑按钮,然而,当我点击复选框时,它会禁用todo列表中的整个编辑按钮。有人能推荐我吗 class App extends Component { state = { disable: false } handleCheckBox = () => { this.setState({disable: !this.state.disable}) }
class App extends Component {
state = {
disable: false
}
handleCheckBox = () => {
this.setState({disable: !this.state.disable})
}
render() {
const {data: {loading, todos}} = this.props;
if(loading) {
return null;
}
return (
<div style={{display: "flex"}}>
<div style={{margin: "auto", width: 400 }}>
<Paper elevation={1}>
<Form submit={this.createTodo}/>
<List>
{todos.map(todo => (
<ListItem
key={todo.id}
role={undefined}
dense
button
onClick={() => this.updateTodo(todo)}
>
<Checkbox
onClick={this.handleCheckBox}
checked={todo.complete}
tabIndex={-1}
disableRipple
/>
<ListItemText primary={todo.text} />
<ListItemSecondaryAction>
<Button mini color="secondary" variant="fab" disabled={this.state.disable}>
<Icon>edit_icon</Icon>
</Button>
<IconButton onClick={() => this.removeTodo(todo)}>
<CloseIcon />
</IconButton>
</ListItemSecondaryAction>
</ListItem>
</List>
))}
</List>
</Paper>
</div>
</div>
);
}
}
类应用程序扩展组件{
状态={
禁用:false
}
handleCheckBox=()=>{
this.setState({disable:!this.state.disable})
}
render(){
const{data:{loading,todos}}=this.props;
如果(装载){
返回null;
}
返回(
{todo.map(todo=>(
this.updateTodo(todo)}
>
编辑图标
这个.removeTodo(todo)}>
))}
);
}
}
您可以通过更改状态来跟踪每个TODO按钮的状态来解决此问题
state = { disabled: {} }
然后单击复选框时,传递todoid
<Checkbox onClick={() => this.handleCheckBox(todo.id)} />
然后,您将能够通过以下方式禁用/启用右按钮:
<Button mini color="secondary" variant="fab" disabled={this.state.disabled[tod.id]}>
您可以创建一个包含禁用状态的映射/对象,ID作为键,true/false作为值
state = { buttons = { } };
handleCheckBox = id => {
const state = { buttons: {...this.state.buttons, id: !this.state.buttons[id] }};
this.setState(state);
}
<Button mini color="secondary" variant="fab" disabled={!this.state.buttons[todo.id]}>
state={buttons={};
handleCheckBox=id=>{
const state={buttons:{…this.state.buttons,id:!this.state.buttons[id]};
本.设置状态(状态);
}
这应该行得通
handleCheckBox = (todo) => {
todo.disabled = !todo.disabled;
}
<Checkbox
onClick={() => {this.handleCheckBox(todo)} }
checked={todo.complete}
tabIndex={-1}
disableRipple
/>
<Button mini color="secondary" variant="fab" disabled={todo.disabled}>
<Icon>edit_icon</Icon>
</Button>
handleCheckBox=(todo)=>{
todo.disabled=!todo.disabled;
}
{this.handleCheckBox(todo)}
选中={todo.complete}
tabIndex={-1}
无效波纹
/>
编辑图标
您只有一个禁用的状态变量。也许你可以在你的todo
上设置一个disabled
属性,或者在所有被禁用的todo的状态下保留一个数组?嘿,我在disabled[id]处遇到了意外的令牌错误
handleCheckBox = (todo) => {
todo.disabled = !todo.disabled;
}
<Checkbox
onClick={() => {this.handleCheckBox(todo)} }
checked={todo.complete}
tabIndex={-1}
disableRipple
/>
<Button mini color="secondary" variant="fab" disabled={todo.disabled}>
<Icon>edit_icon</Icon>
</Button>