2 回答

TA貢獻1796條經(jīng)驗 獲得超7個贊
試試下面,可能對你有用:
this.props.getAvailableteachers()
.then(() => {
if (this.props.teachers.length === 1) {
console.log(this.props.teachers);
this.setState({selectedId : set_your_id_here})
} else {
console.log("Length is >>>>>>>>>> 1");
} })
.catch(err => console.log(err));
和選擇表格
type='text'
name='teachers'
colSize='8'
id='teachers'
onChange={this.teacherChange}
options={teacherOptions}
selected={this.state.selectedId}
/>

TA貢獻1871條經(jīng)驗 獲得超8個贊
只需將道具數(shù)據(jù)分配給value屬性,如下所示
type='text'
name='teachers'
colSize='8'
id='teachers'
onChange={this.teacherChange}
options={teacherOptions}
value={this.props.teachers}
selected={this.props.teachers}
/>
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