public MediaElemntViewModel(VlcMediaItem item)
     : this()
 {
     this.FileUri = item.FileName;
     this.LastDate = item.LastAccess;
     this.MediaType = item.MediaType;
     this.Name = item.Name;
 }
        public async Task<bool> PlayFile(VlcMediaItem file)
        {
            var ps = GetSubmiterForCommand("in_play");
            ps.PostItems.AddItem("input", Uri.EscapeUriString(new Uri(file.FileName).ToString()));
            var res = await ps.PostAsync();

            return true;
        }