private void btnSave_Click(object sender, EventArgs e)
{
if(! Validator.IsValidHostName(txtHostName.Text.Trim()))
{
MessageBox.Show(Resources.msg_warning_correct_hostname, Resources.warning, MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtHostName.Focus();
}
else if (! Validator.IsValidIP(txtIP.Text.Trim()))
{
MessageBox.Show(Resources.msg_warning_correct_ip_address, Resources.warning, MessageBoxButtons.OK, MessageBoxIcon.Warning);
txtIP.Focus();
}
else
{
Host newHost = new Host();
newHost.HostName = txtHostName.Text.Trim();
newHost.IP = txtIP.Text.Trim();
newHost.Enabled = chkEnabled.Checked;
newHost.Comment = txtComment.Text.Trim();
this.newHosts.Add(newHost);
this.Close();
}
}
public static List<Host> ReadHosts(out FileOperationResult result)
{
result = FileOperationResult.Success;
List<Host> hosts = new List<Host>();
TextReader txtStreamReader = null;
try
{
txtStreamReader = new StreamReader(HostFileManager.HostPath);
int id = 0;
string line = String.Empty;
while ((line = txtStreamReader.ReadLine()) != null)
{
// Split where \t or space,
// 4 times,
// Remove empty entries
string[] data = line.Split(new char[] { '\t', ' ' }, 4, StringSplitOptions.RemoveEmptyEntries);
// Valid: [#] IP HOST-Name [#Comment]
// Items that are in [] are optional
if (!Validator.IsValid(data))
continue;
Host newHost = new Host();
newHost.Id = id++;
// checks if binding is disabled
if (data[0] == "#")
{
newHost.Enabled = false;
newHost.IP = data[1];
newHost.HostName = data[2];
}
else
{
newHost.Enabled = true;
newHost.IP = data[0];
newHost.HostName = data[1];
}
// checks if it binding has any comments
if (data.Length > 2)
{
// for bindings that are not disabled
int commentIndex = 2;
// for bindings that are disabled
if (data.Length > 3)
commentIndex = 3;
// remove '#' from comment
if (data[commentIndex][0] == '#')
newHost.Comment = data[commentIndex].Substring(1);
else
newHost.Comment = data[commentIndex];
}
hosts.Add(newHost);
} // end while
}
catch (FileNotFoundException)
{
result = FileOperationResult.FileNotFound;
}
catch
{
result = FileOperationResult.Failed;
}
finally
{
// close the file anyways
if (txtStreamReader != null)
txtStreamReader.Close();
}
return hosts;
}
private void AddNewListViewItem(Host host)
{
ListViewItem hostItem = this.listView1.Items.Add(String.Empty);
if (host.Enabled)
hostItem.ImageIndex = 0;
else
hostItem.ImageIndex = 1;
hostItem.SubItems.Add(host.Id.ToString());
hostItem.SubItems.Add(host.HostName);
hostItem.SubItems.Add(host.IP);
hostItem.SubItems.Add(host.Comment);
}
private void EditListViewItem(int index, Host host)
{
ListViewItem hostItem = this.listView1.Items[index];
if (host.Enabled)
hostItem.ImageIndex = 0;
else
hostItem.ImageIndex = 1;
hostItem.SubItems[2].Text = host.HostName;
hostItem.SubItems[3].Text = host.IP;
hostItem.SubItems[4].Text = host.Comment;
}