c# - How can I filter List property -

on view have autosuggestbox(searchfield) , listview, listview's itemsource bounded vm class property:

private class1 _searchmatches; public class1 searchmatches {     { return _searchmatches; }     set { this.set(ref _searchmatches, value); } } 

on class1 have loaditems task:

async task> loaditems()

var stocks = _response.products?                 .select(s => new myclass(plservice.dtotomodel(s)))                 .tolist();         var items = stocks.groupby(p => p.productmodel.description)                                 .select(p => p.first())                                 .tolist();         return items; 

when type test on autosuggestbox , hit enter, simplest way filter items where(item.description == searchterm)? filter , update itemsource, not rewriting property

you can use <searchbox> , it's querysubmitted event. work <textbox> too. if need refilter items - create 2 lists, 1 store items , items displaying.

here <searchbox> sample:

private list<myclass> _items; // store items  private list<myclass> _displayitems; public list<myclass> displayitems // list show {     { return _displayitems; }     set { setproperty(ref _displayitems, value); } }  private void searchboxquerysubmitted(searchboxquerysubmittedeventargs eventargs) {    searchterm = eventargs.querytext?.trim();    filter(searchterm); }  private void filter(string searchterm) {    if (_items == null)        return;     iqueryable<myclass> items = _items.asqueryable();     if (!string.isnullorempty(searchterm))    {       searchterm = searchterm.tolower();       items = items.where(x => x.productmodel.description.tolower().contains(searchterm));    }     displayitems = items.tolist(); }