public void SaveAs()
{
var sfd = GetService <ISaveFileDialogService>();
sfd.DefaultFileName = $"checklist_{DateTime.Now.ToString("yyMMddHHmm")}.clx";
sfd.Title = "Save checklist";
sfd.DefaultExt = ".clx";
sfd.Filter = "xml file (*.clx)|*.clx";
var result = sfd.ShowDialog();
if (result)
{
CheckList.Save(new FileInfo(sfd.GetFullFileName()));
GetService <IMessageBoxService>().ShowMessage("File saved");
}
}
