C#

System.Data.SqlClient.SqlException: Logical file DB_Jaggry is not part of database DB_Jaggry_Restore&. Use RESTORE FILELISTONLY to list the logical file names.
RESTORE DATABASE is terminating abnormally

private void button1_Click(object sender, EventArgs e)
       {
           BackupDB(@"C:\TempDB_Jaggry.bak");
           RestoreDB(@"C:\TempDB_Jaggry.bak", "DB_Jaggry_Restore");
       }

Code fro Backup-
 public static void BackupDB(string backupDestinationFilePath)
        {
            try
            {
               // Console.WriteLine("Backup operation started");
                Backup backup = new Backup();
                //Set type of backup to be performed to database
                backup.Action = BackupActionType.Database;
                backup.BackupSetDescription = "BackupDataBase description";
                //Set the name used to identify a particular backup set.
                backup.BackupSetName = "Backup";
                //specify the name of the database to back up
                backup.Database = "DB_Jaggry";
                //Set up the backup device to use filesystem.
                BackupDeviceItem deviceItem = new BackupDeviceItem(
                                                backupDestinationFilePath,
                                                DeviceType.File);
                backup.Devices.Add(deviceItem);

                // Setup a new connection to the data server
                ServerConnection connection = new ServerConnection();               
                Server sqlServer = new Server(@"SNEHA-PC\SQLEXPRESS");
                //Initialize devices associated with a backup operation.
                backup.Initialize = true;
                backup.Checksum = true;               
                backup.ContinueAfterError = true;               
                backup.LogTruncation = BackupTruncateLogType.Truncate;                
                backup.SqlBackup(sqlServer);
               MessageBox.Show("Backup operation succeeded");
            }
            catch (Exception ex)
            {
                //Console.WriteLine("Backup operation failed");
               // Console.WriteLine(ex.Message);
                MessageBox.Show(ex.ToString());
            }           
        }

Code For Restore-
 public static void RestoreDB(string backUpFilePath, string databaseName)
        {
        try
        {            
            Restore restore = new Restore();            
            restore.Database = databaseName;
            
            restore.Action = RestoreActionType.Database;                 
            restore.Devices.AddDevice(backUpFilePath, 
DeviceType.File);           


            restore.ReplaceDatabase = true;            
            restore.NoRecovery = false;
            restore.RelocateFiles.Add(new RelocateFile("DB_Jaggry",@"C:\Temp\DB_jaggry.mdf"));
           restore.RelocateFiles.Add(new RelocateFile("DB_Jaggry_Log",@"C:\Temp\DB_Jaggry_Log.ldf"));
            ServerConnection connection = new ServerConnection(@"SNEHA-PC\SQLEXPRESS");
            Server sqlServer = new Server(connection);
            restore.SqlRestore(sqlServer);
            MessageBox.Show("Restore operation succeeded");
        }
        catch (Exception ex)
        {
            
            MessageBox.Show(ex.ToString());
        }        
    }

Thnk u In Advance...

public class Number
{
   private int _Value;
   private bool _IsPrime;

   public int Value
   {
      get { return this._Value; }
      set { this._Value = value; }
   }
   public bool IsPrime
   {
      get { return this._IsPrime; }
      set { this._IsPrime = value; }
   }

   public Number(int value)
   {
       this.Value = value;
       this.IsPrim = true;
   }
}

List<Number> numbers = new List<Number>();

for (int i = 2; i < 20000000; i++)
    numbers.Add(new Number(i));

for (int i = 0; i < numbers.Count - 1; i++)
   if (numbers[i].IsPrime)
      for (int j = i + 1; j < numbers.Count - 1; j++)
              if (numbers[j].Value % numbers[i].Value == 0)
                     numbers[j].IsPrime = false;