如何对列表框项目进行排序？

Question

我只是想知道是否有办法对列表框中的项目进行排序，例如按字母降序，升序？到目前为止，这是我的代码，它基本上将文件添加到列表框中：

 Dim Storage As IsolatedStorageFile = IsolatedStorageFile.GetUserStoreForApplication()
    Dim directory As String = "./MyNote/SavedNotes/*.*"
    Dim filenames As String() = Storage.GetFileNames(directory)
    Dim dataSource As New List(Of SampleData)()
    For Each filename As String In filenames
        Dim ISF As IsolatedStorageFile = IsolatedStorageFile.GetUserStoreForApplication()
        Dim FS As IsolatedStorageFileStream = ISF.OpenFile("MyNote/SavedNotes/" & filename, FileMode.Open, FileAccess.Read)
        Using SR As New StreamReader(FS)
            Dim FTime As String = GetRelativeTime(Storage.GetCreationTime("MyNote/SavedNotes/" & filename).ToString)
            Dim DATESS As String = SR.ReadLine
            Dim ReadName As String = SR.ReadLine
            dataSource.Add(New SampleData() With {.FileNameX = filename, .Description = ReadName, .FileTime = FTime})
        End Using
    Next
    SavedNotesList.ItemsSource = dataSource

我只是想知道如何按字母升序对添加的项目进行排序？有人能帮我吗？我听说需要一个可观察的集合或某种类型的？

Answer 1

你可以轻松做到

 Dim query As IEnumerable(Of SampleData) = _
            datasource.OrderBy(Function(SampleData) s.FileNameX )