/// <summary>
/// Browses for computers on the network.
/// </summary>
private void BrowseNetwork(TreeNode node)
{
try
{
// clear current contents.
node.Nodes.Clear();
IOpcDiscovery discovery = new OpcClientSdk.Com.ServerEnumerator();
string[] hosts = discovery.EnumerateHosts();
// add children.
if (hosts != null)
{
foreach (string host in hosts)
{
TreeNode child = new TreeNode(host);
child.ImageIndex = child.SelectedImageIndex = Resources.IMAGE_LOCAL_COMPUTER;
child.Tag = null;
child.Nodes.Add(new TreeNode());
node.Nodes.Add(child);
}
node.Expand();
}
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
/// <summary>
/// Browses for servers a computer.
/// </summary>
private void BrowseServers(TreeNode node)
{
try
{
// clear current contents.
node.Nodes.Clear();
// get the host name.
string host = null;
if (node != m_localServers)
{
host = node.Text;
}
// get default login information.
OpcConnectData connectData = FindConnectData(node);
// find the servers.
List <OpcServer> servers;
OpcUserIdentity userIdentity;
if (connectData == null || connectData.UserIdentity == null)
{
userIdentity = null;
}
else
{
userIdentity = connectData.UserIdentity;
}
// find the servers.
IOpcDiscovery discovery = new OpcClientSdk.Com.ServerEnumerator();
servers = discovery.GetAvailableServers(m_specification, host, connectData).ToList();
// add children.
if (servers != null)
{
foreach (OpcServer server in servers)
{
TreeNode child = new TreeNode(server.ServerName);
child.ImageIndex = child.SelectedImageIndex = Resources.IMAGE_LOCAL_SERVER;
child.Tag = server;
node.Nodes.Add(child);
}
node.Expand();
}
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
