private async Task OnKeyDownAsync(KeyboardEventArgs args)
{
if (IsEditing)
{
switch (args.Code)
{
case "Escape":
CancelEdit();
break;
case "Enter":
case "Return":
await CommitEditAsync().ConfigureAwait(true);
break;
}
}
else
{
switch (args.Code)
{
case "F2":
await BeginEditAsync().ConfigureAwait(true);
break;
case "KeyA":
if (args.CtrlKey && SelectionMode == TableSelectionMode.Multiple)
{
await ClearSelectionAsync().ConfigureAwait(true);
Selection.AddRange(ItemsToDisplay.Select(x => KeyField !(x).ToString()));
await SelectionChanged.InvokeAsync(null).ConfigureAwait(true);
}
break;
case "ArrowUp":
case "ArrowDown":
if (Selection.Count == 1 && KeyField != null)
{
var items = ItemsToDisplay.ToList();
var item = items.Find(x => KeyField(x).ToString() == Selection[0]);
if (item != null)
{
var idx = items.IndexOf(item);
if (args.Code == "ArrowUp" && idx > 0)
{
Selection.Clear();
Selection.Add(KeyField(items[idx - 1]).ToString());
}
else if (args.Code == "ArrowDown" && idx < items.Count - 1)
{
Selection.Clear();
Selection.Add(KeyField(items[idx + 1]).ToString());
}
}
}
break;
}
}
await KeyDown.InvokeAsync(args).ConfigureAwait(true);
}
