private void DiscoveryTreeView_AfterSelect(object sender, TreeViewEventArgs e)
{
try
{
if (RootFolders.LocalMachine.Equals(e.Node.Tag))
{
ServersTable.Rows.Clear();
ShowPanel(true);
if (e.Node.Nodes.Count == 1 && String.IsNullOrEmpty(e.Node.Nodes[0].Text))
{
e.Node.Nodes.Clear();
m_lds.BeginFindServers(
OnFindServersComplete,
new ExpandNodeData()
{
Parent = e.Node, Lds = m_lds
});
}
else
{
ShowApplicationDescriptions(e.Node.Nodes);
}
return;
}
if (RootFolders.LocalNetwork.Equals(e.Node.Tag))
{
ServersTable.Rows.Clear();
ShowPanel(true);
if (e.Node.Nodes.Count == 1 && String.IsNullOrEmpty(e.Node.Nodes[0].Text))
{
e.Node.Nodes.Clear();
m_lds.BeginFindServersOnNetwork(
0,
1000,
OnFindServersOnNetworkComplete,
new ExpandNodeData()
{
Parent = e.Node, Lds = m_lds
});
}
else
{
ShowServerOnNetworks(e.Node.Nodes);
}
return;
}
if (RootFolders.GlobalDiscovery.Equals(e.Node.Tag))
{
ServersTable.Rows.Clear();
ShowPanel(true);
if (e.Node.Nodes.Count == 1 && String.IsNullOrEmpty(e.Node.Nodes[0].Text))
{
e.Node.Nodes.Clear();
var servers = new ViewServersOnNetworkDialog(m_gds).ShowDialog(this, ref m_filters);
if (servers != null)
{
foreach (var server in servers)
{
TreeNode node = new TreeNode(String.Format("{0}", server.ServerName));
node.SelectedImageIndex = node.ImageIndex = ImageIndex.Server;
node.Tag = server;
node.Nodes.Add(new TreeNode());
e.Node.Nodes.Add(node);
}
}
}
ShowServerOnNetworks(e.Node.Nodes);
return;
}
if (RootFolders.CustomDiscovery.Equals(e.Node.Tag))
{
ServersTable.Rows.Clear();
ShowPanel(true);
return;
}
if (e.Node.Tag is ApplicationDescription)
{
EndpointsTable.Rows.Clear();
ShowPanel(false);
ApplicationDescription application = (ApplicationDescription)e.Node.Tag;
ApplicationNameTextBox.Text = (LocalizedText.IsNullOrEmpty(application.ApplicationName))?"---":application.ApplicationName.Text;
ApplicationTypeTextBox.Text = application.ApplicationType.ToString();
ApplicationUriTextBox.Text = application.ApplicationUri;
ProductUriTextBox.Text = application.ProductUri;
string discoveryUrl = SelectDiscoveryUrl(application);
if (discoveryUrl != null)
{
m_lds.BeginGetEndpoints(
discoveryUrl,
null,
OnGetEndpointsComplete,
new GetEndpointsData()
{
Parent = e.Node, Lds = m_lds
});
}
}
if (e.Node.Tag is ServerOnNetwork)
{
EndpointsTable.Rows.Clear();
ShowPanel(false);
ServerOnNetwork server = (ServerOnNetwork)e.Node.Tag;
ApplicationNameTextBox.Text = server.ServerName;
ApplicationTypeTextBox.Text = "---";
ApplicationUriTextBox.Text = "---";
ProductUriTextBox.Text = "---";
try
{
Cursor = Cursors.WaitCursor;
m_lds.BeginGetEndpoints(
server.DiscoveryUrl,
null,
OnGetEndpointsComplete,
new GetEndpointsData()
{
Parent = e.Node, Lds = m_lds
});
}
finally
{
Cursor = Cursors.Default;
}
}
if (e.Node.Tag is ConfiguredEndpoint)
{
EndpointsTable.Rows.Clear();
ShowPanel(false);
ConfiguredEndpoint server = (ConfiguredEndpoint)e.Node.Tag;
ApplicationNameTextBox.Text = "---";
ApplicationTypeTextBox.Text = "---";
ApplicationUriTextBox.Text = "---";
ProductUriTextBox.Text = "---";
m_lds.BeginGetEndpoints(
server.EndpointUrl.ToString(),
null,
OnGetEndpointsComplete,
new GetEndpointsData()
{
Parent = e.Node, Lds = m_lds
});
}
}
catch (Exception ex)
{
Opc.Ua.Client.Controls.ExceptionDlg.Show(Text, ex);
}
}
private void DiscoveryTreeView_BeforeExpand(object sender, TreeViewCancelEventArgs e)
{
if (e.Node.Nodes.Count != 1 || !String.IsNullOrEmpty(e.Node.Nodes[0].Text))
{
return;
}
e.Node.Nodes.Clear();
if (RootFolders.LocalMachine.Equals(e.Node.Tag))
{
m_lds.BeginFindServers(
OnFindServersComplete,
new ExpandNodeData()
{
Parent = e.Node, Lds = m_lds
});
return;
}
if (RootFolders.LocalNetwork.Equals(e.Node.Tag))
{
m_lds.BeginFindServersOnNetwork(
0,
100,
OnFindServersOnNetworkComplete,
new ExpandNodeData()
{
Parent = e.Node, Lds = m_lds
});
return;
}
if (RootFolders.GlobalDiscovery.Equals(e.Node.Tag))
{
var servers = new ViewServersOnNetworkDialog(m_gds).ShowDialog(this, ref m_filters);
if (servers != null)
{
foreach (var server in servers)
{
TreeNode node = new TreeNode(String.Format("{0}", server.ServerName));
node.SelectedImageIndex = node.ImageIndex = ImageIndex.Server;
node.Tag = server;
node.Nodes.Add(new TreeNode());
e.Node.Nodes.Add(node);
}
}
return;
}
if (RootFolders.CustomDiscovery.Equals(e.Node.Tag))
{
return;
}
if (e.Node.Tag is Uri)
{
m_lds.BeginFindServers(
e.Node.Tag.ToString(),
null,
null,
null,
null,
OnFindServersComplete,
new ExpandNodeData()
{
Parent = e.Node, Lds = m_lds
});
return;
}
}