public void ExecuteSort(string propertyName, ListSortDirection direction)
{
var isAsc = direction == ListSortDirection.Ascending;
var sortedQuery = propertyName switch
{
"Name" => isAsc
? FileInfoList.OrderBy(file => file.Name, new FileNameComparer())
: FileInfoList.OrderByDescending(file => file.Name, new FileNameComparer()),
"Size" => isAsc
? FileInfoList.OrderBy(file => file.Size)
: FileInfoList.OrderByDescending(file => file.Size),
"Type" => isAsc
? FileInfoList.OrderBy(file => file.Type)
: FileInfoList.OrderByDescending(file => file.Type),
"LastUpdateDate" => isAsc
? FileInfoList.OrderBy(file => file.LastUpdateDate)
: FileInfoList.OrderByDescending(file => file.LastUpdateDate),
_ => throw new ArgumentException(),
};
FileInfoList = new ObservableCollection <FileInfoViewModel>(sortedQuery);
////ソートアイコン表示をViewに依頼
//Messenger.Instance.Send<SortMessage, MainWindow>(new SortMessage(propertyName, direction));
//ソート情報保持
switch (this.currentDirectory?.FileType)
{
case FileInfoViewModel.FileInfoType.Archive:
case FileInfoViewModel.FileInfoType.ArchivedDirectory:
this.archiveSortDescription = new SortDescription(propertyName, direction);
break;
case FileInfoViewModel.FileInfoType.Directory:
this.directorySortDescription = new SortDescription(propertyName, direction);
break;
}
}