C#Windows Forms ping.Send与DataGridView的Async问题
发布时间:2020-12-15 22:18:01 所属栏目:百科 来源:网络整理
导读:所以我在下面有这个代码.我发现了一个预览帖,并从这里开始工作.但由于某种原因,它不会循环并更新具有回复状态的单元格.它只更新列表中的最后一个ip. private static void ping_PingCompleted(object sender,PingCompletedEventArgs e){ var reply = e.Reply;
所以我在下面有这个代码.我发现了一个预览帖,并从这里开始工作.但由于某种原因,它不会循环并更新具有回复状态的单元格.它只更新列表中的最后一个ip.
private static void ping_PingCompleted(object sender,PingCompletedEventArgs e) { var reply = e.Reply; DataGridViewRow row = e.UserState as DataGridViewRow; DataGridViewCell PingStat = row.Cells["cPing"]; if (!(reply == null)) { switch (reply.Status) { case IPStatus.Success: PingStat.Value = string.Format("Reply from {0}: bytes={1} time={2}ms TTL={3}",reply.Address,reply.Buffer.Length,reply.RoundtripTime,reply.Options.Ttl); break; case IPStatus.TimedOut: PingStat.Value = "Connection has timed out..."; break; default: PingStat.Value = string.Format("Ping failed: {0}",reply.Status.ToString()); break; } } } private void bPing_Click(object sender,EventArgs e) { String ip; Ping ping = new Ping(); foreach (DataGridViewRow row in dgvData.Rows) { if(!row.IsNewRow) { ip = row.Cells["cIPAddress"].Value.ToString(); ping.PingCompleted += new PingCompletedEventHandler(ping_PingCompleted); ping.SendAsync(ip,1000,row); System.Threading.Thread.Sleep(5); } } } 我做错了什么?我想添加行ping.SendAsync它会跟踪所有回复相应的IP /行? 我正在使用的更新代码 private static void ping_PingCompleted(object sender,PingCompletedEventArgs e) { var reply = e.Reply; DataGridViewRow row = e.UserState as DataGridViewRow; DataGridViewCell PingStat = row.Cells["cPing"]; if (reply != null) { switch (reply.Status) { case IPStatus.Success: PingStat.Value = string.Format("Reply from {0}: bytes={1} time={2}ms TTL={3}",reply.Options.Ttl); break; case IPStatus.TimedOut: PingStat.Value = "Connection has timed out..."; break; default: PingStat.Value = string.Format("Ping failed: {0}",reply.Status.ToString()); break; } } } private void bPing_Click(object sender,EventArgs e) { foreach (DataGridViewRow row in dgvData.Rows) { if (!row.IsNewRow) { Debug.WriteLine("Rows"); String ip; Ping ping = new Ping(); ip = row.Cells["cIPAddress"].Value.ToString(); ping.PingCompleted += new PingCompletedEventHandler(ping_PingCompleted); ping.SendAsync(ip,row); System.Threading.Thread.Sleep(5); } } } 解决方法
我认为问题是你有一个Ping和一个IP,这些都会一直重置到最后一行.如果将这些变量移动到foreach循环中,那么DataGridView中的每一行都将拥有“自己的”Ping和ip,因此您不会有每行有效撤消前一行的问题.
private void bPing_Click(object sender,EventArgs e) { foreach (DataGridViewRow row in dgvData.Rows) { if(!row.IsNewRow) { String ip; Ping ping = new Ping(); ip = row.Cells["cIPAddress"].Value.ToString(); ping.PingCompleted += new PingCompletedEventHandler(ping_PingCompleted); ping.SendAsync(ip,row); System.Threading.Thread.Sleep(5); } } } 另外,我不熟悉“Ping”,但你可能想知道它是否需要被处理掉,或者把它放在Using循环中. 此外,无需将行强制转换为行. (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |