</span> <span class="keyword">async</span> Task OnInitializedAsync()
    {
        Countries = <span class="keyword">await</span> CountryData.GetDataAsync();
        multipleSelectionData = <span class="keyword">new</span> List&lt;<span class="keyword">string</span>&gt;() { Countries.ElementAt( <span class="number">1</span> ).Iso, Countries.ElementAt( <span class="number">3</span> ).Iso };
        <span class="keyword">await</span> <span class="keyword">base</span>.OnInitializedAsync();
    }

    List&lt;<