奇怪的是,如果我从除select1之外的所有<select>元素中删除selected属性,那么select1的行为将如预期:当我切换到select1时,它将始终显示选项1a,而不管之前选择了什么,但select2显示的选项将继续取决于切换到它之前所选择的内容。因此,就好像selected只在使用一次时有效,但我不明白为什么会这样,因为它只适用于每个<selec...
React 设置为选择框选择哪个选项的方法是在 <select> 本身上设置一个特殊的 value 属性,对应于 value 属性您希望被选中的 <option> 元素。对于 multiple 选择此道具可以接受数组。
closeOnSelect boolean true whether to close the menu when a value is selected deleteRemoves boolean true whether pressing delete key removes the last item when there is no input value. (Also see related prop backspaceRemoves) delimiter string ',' delimiter to use to join multiple values disable...
isMulti- allow the user to select multiple values isSearchable- allow the user to search for matching options name- generate an HTML input with this name, containing the current value onChange- subscribe to change events options- specify the options the user can select from ...
import Select from 'react-select'; interface DropdownMenuProps { values: [{}] defaultValue: string } interface DropdownMenuState { } /** * Represents a Dropdown Menu */ export default class DropdownMenu extends Component<DropdownMenuProps, DropdownMenuState> { ...
onSelectcalled when a option is selected. param is option's value and option instanceFunction(value, option:Option)- onDeselectcalled when a option is deselected. param is option's value. only called for multiple or tagsFunction(value, option:Option)- ...
{// wrapperdd__wrapper,// applied to multi selectdd__multi,// applied to single selectdd__single,// applied when dropdown openeddd__opened,// applied when dropdown has error propertydd__error,// disableddd_disabled:classType,// selected block classdd__selectControl,// selected values wr...
"ROW\t"+new String(row.getRow())); for(Map.Entry<byte[], byte[]>entry:ro ...
In React, the selected value is defined with avalueattribute on theselecttag: Example: A simple select box, where the selected value "Volvo" is initialized in the constructor: functionMyForm(){const[myCar,setMyCar]=useState("Volvo");consthandleChange=(event)=>{setMyCar(event.target.value)...
setState({selected: selected}); }, render() { return ( <Pikaday value={this.state.date} onChange={this.dateChange} /> <Select name="form-field-name" value={this.state.selected} options={this.options} onChange={selectChange} /> )} } When it comes to React, it's a jungle out ...