问自定义控件从另一个函数选取器控件返回任务

EN

public PickerView(string title, string message, IEnumerable ItemSource, string text = null, Keyboard keyboard = null)
{
        InitializeComponent();

        txtInput.Text = text;
        BindTexts(title, message);
        txtInput.Keyboard = keyboard;
        pickItems.ItemsSource = ItemSource.Cast<object>().ToList();
        pickItems.SelectedIndexChanged += PickItems_SelectedIndexChanged;
 }

Task<T> GetPickerChoice<T>(string title, string message, IEnumerable ItemSource, string currentText = null,
Keyboard keyboard = null);

private void PickItems_SelectedIndexChanged(object sender, EventArgs e)
{
        throw new NotImplementedException();
}

   List<PickerModel> _testList = new List<PickerModel>();
   PickerModel model = new PickerModel();
   model.Value = 1008;
   model.Description = "FW";
  _testList.Add(model);
  var returnValueFromPicker= await Plugin.DialogKit.CrossDiaglogKit.Current.GetPickerChoice<PickerModel>("Fuel", $"This item is in one or more bins please select a bin location", _testList, null, Keyboard.Numeric);