如何使用自定义函数在流畅的 ui 标签选择器中生成建议

问题描述

我正在尝试使用 fluent ui 中的 tagPicker。我使用该站点的示例作为起点： https://developer.microsoft.com/en-us/fluentui#/controls/web/pickers

问题是我拥有的对象有 3 个道具。数组中的对象是 {Code:'string',Title:'string',Category:'string'}。我正在使用具有 useEffect 的状态来获取数据。到目前为止工作正常，问题是建议被呈现为空白。它过滤项目但不显示我想要的道具。

这是我的代码：

import * as React from 'react';

import {
  TagPicker,IBasePicker,ITag,IInputProps,IBasePickerSuggestionsprops,} from 'office-ui-fabric-react/lib/Pickers';
import { mergeStyles } from 'office-ui-fabric-react/lib/Styling';

const inputProps: IInputProps = {
  onBlur: (ev: React.FocusEvent<HTMLInputElement>) => console.log('onBlur called'),onFocus: (ev: React.FocusEvent<HTMLInputElement>) => console.log('onFocus called'),'aria-label': 'Tag picker',};

const pickerSuggestionsprops: IBasePickerSuggestionsprops = {
  suggestionsHeaderText: 'Suggested tags',noresultsFoundText: 'No color tags found',};

const url="url_data"

export const TestPicker: React.FunctionComponent = () => {
    const getTextFromItem = (item) => item.Code;

   const [state,setStateObj] = React.useState({items:[],isLoading:true})
  // All pickers extend from BasePicker specifying the item type.
  React.useEffect(()=>{
      if (!state.isLoading) {
          return
      } else {
        caches.open('cache')
        .then(async cache=> {
            return cache.match(url);
        })
        .then(async data=>{
            return await data.text()
        })
        .then(data=>{
            
            const state = JSON.parse(data).data
            setStateObj({items:state,isLoading:false})
        })
    }
  },[state.isLoading])
  const filterSuggestedTags = (filterText: string,tagList: ITag[]): ITag[] => {
      
    return filterText
      ? state.items.filter(
          tag => tag.Code.toLowerCase().indexOf(filterText.toLowerCase()) === 0 && !listContainsTagList(tag,tagList),).slice(0,11)      : [];
  };
  const listContainsTagList = (tag,state?) => {
    if (!state.items || !state.items.length || state.items.length === 0) {
      return false;
    }
    return state.items.some(compareTag => compareTag.key === tag.key);
  };
  
  return (
    <div>
      Filter items in suggestions: This picker will filter added items from the search suggestions.
      <TagPicker
        removeButtonAriaLabel="Remove"
        onResolveSuggestions={filterSuggestedTags}
        getTextFromItem={getTextFromItem}
        pickerSuggestionsprops={pickerSuggestionsprops}
        itemLimit={1}
        inputProps={inputProps}
      />
    </div>
  );
};

解决方法

我刚知道，我需要映射项目以遵循示例中的 {key,name}。现在它可以工作了。

setStateObj({items:state.map(item => ({ key: item,name: item.Code })),isLoading:false})