角材料表按所有列过滤

Question

我正在尝试使用角度材料表过滤所有列。还有一个搜索过滤所有。当我尝试通过过滤使用搜索和列时，会导致filterPredicate出现问题。

这是我的实现方式

...

    _filter:{};

      ngOnInit() {
    //it needs to column by filter but causing a problem with using global filter
          this.dataSource.filterPredicate = (data: User, filters: string) => {
            debugger;
            const parsedFilters = JSON.parse(filters);
            return Object.keys(parsedFilters)
              .map(column => {
                return data[column].toLocaleString().trim().toLocaleLowerCase().includes(parsedFilters[column].toLocaleString().trim().toLocaleLowerCase())
              })
              .reduce((acc: boolean, curr: boolean) => (acc = curr) && acc, true);
          }
      }

    //global filter
      public doFilter = (value: string) => { 
            this.dataSource.filter = value.trim().toLocaleLowerCase();
      }
      //column by filter
        public applyFilter(filterValue: string, column: string) {
            this._filter = {
                ...this._filter,
                [column]: filterValue
              };

            if (!filterValue) delete this._filter[column];

        this.dataSource.filter = JSON.stringify(this._filter);

        this.fullSearch = false;

          }
       ...

我该如何解决。 谢谢