//削除ボタンを利用するならこっち
 public NicoRepoResultEntryViewModel(NicoNicoNicoRepoDataEntry entry, NicoRepoListViewModel owner)
 {
     Owner = owner;
     Entry = entry;
     if (entry.IsMyNicoRepo)
     {
         ShowDeleteButton = true;
     }
 }
 public NicoRepoResultEntryViewModel(NicoNicoNicoRepoDataEntry entry)
 {
     Entry = entry;
 }