.NET (Core and Framework)

Public Shared Function FileCount(PathName As String) As Long
        Try
            Dim FSO As New FileSystemObject
            Dim fld As Folder
            If FSO.FolderExists(PathName) Then
                fld = FSO.GetFolder(PathName)
                FileCount = fld.Files.Count
            End If
            Return FileCount
        Catch ex As DirectoryNotFoundException
        End Try
    End Function 'Calculate File Count

    Public Shared Sub StartNewScan(ByVal FilePath As String)
        Dim Allfile As String = "*.*"
        Dim FFcount As Long
        Dim MyFolderSize As Long
        Dim FullPath As String
        Using fse As New FindFiles.FileSystemEnumerator(FilePath, Allfile, True)
            Dim ien As IEnumerator(Of FileInfo) = fse.Matches().GetEnumerator()
            ien.Dispose()
            For Each fi As FileInfo In fse.Matches()
                FFcount += CStr(FileCount(fi.DirectoryName)).Length
                Form1.Label3.Text = CStr( "File Count:" & FFcount)
                MyFolderSize += fi.Length
                FullPath = fi.FullName
                Form1.Label4.Text = "File Path:" & FullPath
            Next
        End Using
    End Sub

Dim StartSharedSub as new threading.thread(addressof Startnewscan)
startsharedsub.start()

public class Attore
{

    public int Id { get; set; }
    public int IdTipo { get; set; }
    public string Nome { get; set; }
    public string Cognome { get; set; }

    public virtual ICollection<CommessaAttore> CommessaAttore { get; set; }

    public virtual AttoreTipo AttoreTipo { get; set; }

}

public class AttoreTipo
    {

        public int Id { get; set; }
        public string Tipo { get; set; }
        public DateTime CreateDate { get; set; }
        public DateTime? UpdateDate { get; set; }

        public virtual ICollection<Attore> Attore { get; set; }

    }

public class CommessaAttore
  {

      public int Id { get; set; }
      public int IdCommessa { get; set; }
      public int IdAttore { get; set; }
      public DateTime CreateDate { get; set; }
      public DateTime? UpdateDate { get; set; }
      public virtual Commessa Commessa { get; set; }
      public virtual Attore Attore { get; set; }


  }

public class Commessa
   {
       public int Id { get; set; }

       public string Descrizione { get; set; }

       public DateTime EndDate { get; set; }

       public DateTime CreateDate { get; set; }

       public DateTime? UpdateDate { get; set; }

       public virtual ICollection<CommessaAttore> CommessaAttore { get; set; }
 
   }

public CommessaAttore AddCommessaAttore(CommessaAttore commessaattore)
     {
         repository.Add(commessaattore);
         SaveChanges();
         return commessaattore;
     }

public IEnumerable<CommessaAttore> GetCommessaAttoriByCommessaId(int idcommessa)
{
    var activities = repository.GetMany(commatts => commatts.IdCommessa == idcommessa);
    return activities;
}