vb.net datagridViewのすべての行を削除

vb.net datagridViewのすべての行を削除

do
{
   foreach (DataGridViewRow row in m_dataGridView.Rows)
   {
      try
      {
        m_dataGridView.Rows.Remove(row);      }
      catch (Exception) { }
   }
} while (m_dataGridView.Rows.Count > 1);

Linux Centos ネットワーク上で使用しているIPアドレスを自動で調べるコマンド

Linux Centos ネットワーク上で使用しているIPアドレスを自動で調べるコマンド

nmap -sP 192.168.11.0/24

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2013-05-28 09:44 JST
Host 192.168.11.1 appears to be up.
MAC Address: 1C:B1:7F:4D:9D:05 (Unknown)
Host 192.168.11.52 appears to be up.
MAC Address: 8C:89:A5:79:16:89 (Unknown)
Host 192.168.11.55 appears to be up.
MAC Address: 5C:F3:FC:2B:71:3E (Unknown)
Host 192.168.11.59 appears to be up.
MAC Address: 00:16:01:6C:6E:3A (Buffalo)
Host 192.168.11.65 appears to be up.
MAC Address: 24:BE:05:28:ED:4B (Unknown)
Host 192.168.11.155 appears to be up.
MAC Address: 00:14:85:68:81:5F (Giga-Byte)
Host 192.168.11.186 appears to be up.
Host 192.168.11.240 appears to be up.
MAC Address: 08:00:37:A1:32:DC (Fuji-xerox CO.)
Host 192.168.11.254 appears to be up.
MAC Address: 00:A0:DE:29:7C:5C (Yamaha)
Nmap finished: 256 IP addresses (9 hosts up) scanned in 21.283 second

vb.net datagridview 新規行判定方法

vb.net datagridview 新規行判定方法

If False = dataGridViewObj.Rows(0).IsNewRow Then
       ' 新規行じゃない
Else
　　　' 新規行ですよ
EndIf