javascript - Achieve combobox behavior for react-bootstrap-typeahead - Stack Overflow

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I'm trying to use the react-bootstrap-typeahead control but I'm struck trying to make it do what I want. I've actually got 2 of these on my page, one of which is doing a true async lookup, and one which I almost want to behave like a bobox.

What I'd like to be able to do is to select an item, then click the dropdown to change my mind and choose another item. However if you try this, when you expand the list again it's automatically filtered to just the item you have selected.

For example if I use the basic example on the demo page, and select Alabama, clicking the input now only displays Alabama and none of the other choices. I'd like this to ideally return me to the full list (is this possible?).

I'm trying to use the react-bootstrap-typeahead control but I'm struck trying to make it do what I want. I've actually got 2 of these on my page, one of which is doing a true async lookup, and one which I almost want to behave like a bobox.

What I'd like to be able to do is to select an item, then click the dropdown to change my mind and choose another item. However if you try this, when you expand the list again it's automatically filtered to just the item you have selected.

For example if I use the basic example on the demo page, and select Alabama, clicking the input now only displays Alabama and none of the other choices. I'd like this to ideally return me to the full list (is this possible?).

• javascript
• react-bootstrap-typeahead

Share Improve this question Follow edited Jan 19, 2018 at 18:44 ericgio 3,54955 gold badges3131 silver badges4848 bronze badges asked Sep 12, 2017 at 19:39 IanIan 34.6k2929 gold badges126126 silver badges211211 bronze badges

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1 Answer 1

Sorted by: Reset to default 9

Yes, it's possible. The filterBy prop can take a custom function, allowing you to filter results however you want. So building off the example you linked to, you'd want to do something along these lines:

<Typeahead
  filterBy={(option, text) => {
    if (this.state.selected.length) {
      // Display all the options if there's a selection.
      return true;
    }
    // Otherwise filter on some criteria.
    return option.name.toLowerCase().indexOf(text.toLowerCase()) !== -1;
  }}
  labelKey="name"
  onChange={(selected) => this.setState({selected})}
  options={options}
  placeholder="Choose a state..."
  selected={this.state.selected}
/>

Update As of v3.0.0, the filterBy callback passes props instead of text:

(option, props) => {
  if (props.selected.length) {
    // Display all the options if there's a selection.
    return true;
  }
  // Otherwise filter on some criteria.
  return option.name.toLowerCase().indexOf(props.text.toLowerCase()) !== -1;
}

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