获取局域网内所有(数据库)SQLServer机器名和实例名

 public List<string> GetDataSource()
    {
      DataTable dataSources = SqlClientFactory.Instance.CreateDataSourceEnumerator().GetDataSources();

        DataColumn column = dataSources.Columns["InstanceName"];
        DataColumn column2 = dataSources.Columns["ServerName"];

        DataRowCollection rows = dataSources.Rows;
        List<string> Serverlist = new List<string>();
        string array = string.Empty;
        for (int i = 0; i < rows.Count; i++)
        {
            string str2 = rows[i][column2] as string;
            string str = rows[i][column] as string;
            if (((str == null) || (str.Length == 0)) || ("MSSQLSERVER" == str))
            {
                array = str2;
                Console.WriteLine(array);
            }
            else
            {
                array = str2 + @"\" + str;
                Console.WriteLine(array);
            }

            Serverlist.Add(array);
        }

        Serverlist.Sort();
        return Serverlist;
    }