public FileListViewModel(IScreen host)
{
HostScreen = host;
Files = new ReactiveList<string>(new []
{
"c:/temp/foo.txt",
"c:/temp/bar.txt",
"c:/temp/baseball.dat",
"c:/temp/basketball.dat",
"c:/temp/handegg.dat"
});
var confirmDelete = new Interaction<Unit, string>();
DeleteFile = ReactiveCommand.CreateFromTask(
async () =>
{
var fileToDelete = SelectedFile;
var baseMessage = $"Do you really want to delete {fileToDelete}?";
var help = "\nConfirm by entering the full file name below.";
var message = baseMessage + help;
var abort = this
.WhenAnyValue(x => x.SelectedFile)
.Skip(1)
.Select(_ => Unit.Default);
ConfirmDeleteViewModel = new ConfirmEventViewModel(abort, confirmDelete)
{
Message = message
};
while (true)
{
var confirmation = await confirmDelete.Handle(Unit.Default);
if (confirmation == fileToDelete)
{
SelectedFile = null;
Files.Remove(fileToDelete);
ConfirmDeleteViewModel = null;
break;
}
if (confirmation == null)
{
ConfirmDeleteViewModel = null;
break;
}
ConfirmDeleteViewModel.Message = baseMessage + "\nYou didn't type the right thing." + help;
}
},
this.WhenAnyValue(vm => vm.SelectedFile).Select(s => s != null));
}
public FileListViewModel(IScreen host)
{
HostScreen = host;
Files = new ReactiveList <string>(new []
{
"c:/temp/foo.txt",
"c:/temp/bar.txt",
"c:/temp/baseball.dat",
"c:/temp/basketball.dat",
"c:/temp/handegg.dat"
});
ConfirmDelete = new Interaction <ConfirmEventViewModel, string>();
DeleteFile = ReactiveCommand.CreateFromTask(
async() =>
{
var fileToDelete = SelectedFile;
var baseMessage = $"Do you really want to delete {fileToDelete}?";
var help = "\nConfirm by entering the full file name below.";
var message = baseMessage + help;
var abort = this
.WhenAnyValue(x => x.SelectedFile)
.Skip(1)
.Select(_ => Unit.Default);
while (true)
{
var info = new ConfirmEventViewModel(abort)
{
File = fileToDelete,
Message = message
};
var confirmation = await ConfirmDelete.Handle(info);
if (confirmation == null)
{
break;
}
else if (confirmation == fileToDelete)
{
SelectedFile = null;
Files.Remove(fileToDelete);
break;
}
else
{
message = baseMessage + "\nYou didn't type the right thing." + help;
}
}
},
this.WhenAnyValue(vm => vm.SelectedFile).Select(s => s != null));
}