protected override async void DeleteExecute()
{
var confirm = await MessagePopup.ShowAsync(Strings.Resources.AreYouSureDeletePhoto, Strings.Resources.AppName, Strings.Resources.OK, Strings.Resources.Cancel);
if (confirm == ContentDialogResult.Primary && _selectedItem is GalleryChatPhoto chatPhoto)
{
Function function;
if (chatPhoto.MessageId == 0)
{
function = new SetChatPhoto(_chat.Id, null);
}
else
{
function = new DeleteMessages(_chat.Id, new[] { chatPhoto.MessageId }, true);
}
var response = await ProtoService.SendAsync(function);
if (response is Ok)
{
var index = Items.IndexOf(chatPhoto);
if (index < Items.Count - 1 && chatPhoto.MessageId != 0)
{
SelectedItem = Items[index > 0 ? index - 1 : index + 1];
Items.Remove(chatPhoto);
TotalItems--;
}
else
{
NavigationService.GoBack();
}
}
}
}
public static ValidationResult <SetChatPhoto> CreateValidation(this SetChatPhoto value) => new ValidationResult <SetChatPhoto>(value) .ValidateRequired(x => x.ChatId) .ValidateRequired(x => x.Photo);
