using DLToolkit.Forms.Controls;

namespace Mynamespace
{
    public class CustomFlowListView : FlowListView
    {
    }
}

using Listpm;
using Listpm.UWP;
using Xamarin.Forms;
using Xamarin.Forms.Platform.UWP;

[assembly: ExportRenderer(typeof(CustomFlowListView), typeof(CustomListViewRenderer))]

namespace Listpm.UWP
{
    class CustomListViewRenderer : ListViewRenderer
    {
        protected override void OnElementChanged(ElementChangedEventArgs<ListView> e)
        {
            base.OnElementChanged(e);

            if (List != null)
                List.SelectionMode = Windows.UI.Xaml.Controls.ListViewSelectionMode.None;
        }
    }
}