protected void GetEnpoints_Click(object sender, EventArgs e)
{
if (discoveryTextBox.Text != "")
{
bool foundEndpoints = false;
endpointListView.Items.Clear();
Session["Urltext"] = discoveryTextBox.Text;
//The local discovery URL for the discovery server
string discoveryUrl = discoveryTextBox.Text;
try
{
ApplicationDescriptionCollection servers = myClientHelperAPI.FindServers(discoveryUrl);
foreach (ApplicationDescription ad in servers)
{
foreach (string url in ad.DiscoveryUrls)
{
try
{
EndpointDescriptionCollection endpoints = myClientHelperAPI.GetEndpoints(url);
foundEndpoints = foundEndpoints || endpoints.Count > 0;
List <string> enps = new List <string>();
foreach (EndpointDescription ep in endpoints)
{
string securityPolicy = ep.SecurityPolicyUri.Remove(0, 42);
string key = "[" + ad.ApplicationName + "] " + " [" + ep.SecurityMode + "] " + " [" + securityPolicy + "] " + " [" + ep.EndpointUrl + "]";
enps.Add(key);
endpointListView.Items.Add(key);
}
Session["endpointlist"] = enps;
}
catch (ServiceResultException sre)
{
//If an url in ad.DiscoveryUrls can not be reached, myClientHelperAPI will throw an Exception
ClientScript.RegisterStartupScript(this.GetType(), "Alert", "mess('error','Oops...'," + sre.ToString() + ")", true);
}
}
if (!foundEndpoints)
{
ClientScript.RegisterStartupScript(this.GetType(), "Alert", "mess('warning','Oops...','Could not get any Endpoints!')", true);
}
}
}
catch (Exception ex)
{
ClientScript.RegisterStartupScript(this.GetType(), "Alert", "mess('error','Oops...'," + ex.ToString() + ")", true);
}
}
else
{
ClientScript.RegisterStartupScript(this.GetType(), "Alert", "mess('warning','Warning...','You forget write endpoint Url!')", true);
}
}
public List <EndpointDes> FindServer(string serverUrl)
{
List <EndpointDes> endpointListView = new List <EndpointDes>();
_EndpointDescriptions.Clear();
ApplicationDescriptionCollection servers = uAClient.FindServers(serverUrl);
foreach (ApplicationDescription ad in servers)
{
foreach (string url in ad.DiscoveryUrls)
{
EndpointDescriptionCollection endpoints = uAClient.GetEndpoints(url);
foreach (EndpointDescription ep in endpoints)
{
string securityPolicy = ep.SecurityPolicyUri.Remove(0, 42);
EndpointDes endpointDes = new EndpointDes()
{
ID = Guid.NewGuid().ToString(),
Description = "[" + ad.ApplicationName + "] " + " [" + ep.SecurityMode + "] " + " [" + securityPolicy + "] " + " [" + ep.EndpointUrl + "]",
OpcEndpointDescription = ep
};
endpointListView.Add(endpointDes);
_EndpointDescriptions.Add(endpointDes.ID, endpointDes);
}
}
}
return(endpointListView);
}
private void EndpointButton_Click(object sender, EventArgs e)
{
endpointListView.Items.Clear();
//The local discovery URL for the discovery server
string discoveryUrl = discoveryTextBox.Text;
try
{
ApplicationDescriptionCollection servers = myClientHelperAPI.FindServers(discoveryUrl);
foreach (ApplicationDescription ad in servers)
{
foreach (string url in ad.DiscoveryUrls)
{
EndpointDescriptionCollection endpoints = myClientHelperAPI.GetEndpoints(url);
foreach (EndpointDescription ep in endpoints)
{
string securityPolicy = ep.SecurityPolicyUri.Remove(0, 42);
endpointListView.Items.Add("[" + ad.ApplicationName + "] " + " [" + ep.SecurityMode + "] " + " [" + securityPolicy + "] " + " [" + ep.EndpointUrl + "]").Tag = ep;
}
}
}
}
catch (Exception ex)
{
if (BGW_OPCUA.IsBusy)
{
BGW_OPCUA.CancelAsync();
}
MessageBox.Show(ex.Message, "Error");
}
}
private void DiscoveryB_Click(object sender, EventArgs e)
{
bool foundEndpoints = false;
DiscoveredServersLV.Items.Clear();
//Create discovery URL for the discovery client
string serverUrl = null;
if (!String.IsNullOrEmpty(DiscoveryUrlTB.Text) & !String.IsNullOrEmpty(DiscoveryPortTB.Text))
{
serverUrl = "opc.tcp://" + DiscoveryUrlTB.Text + ":" + DiscoveryPortTB.Text;
}
else if (String.IsNullOrEmpty(DiscoveryUrlTB.Text) & !String.IsNullOrEmpty(DiscoveryPortTB.Text))
{
serverUrl = "opc.tcp://localhost:" + DiscoveryPortTB.Text;
}
else if (!String.IsNullOrEmpty(DiscoveryUrlTB.Text) & String.IsNullOrEmpty(DiscoveryPortTB.Text))
{
serverUrl = "opc.tcp://" + DiscoveryUrlTB.Text + ":" + "4840";
}
else
{
serverUrl = "opc.tcp://localhost:4840";
}
//Get the endpoints
try
{
ApplicationDescriptionCollection servers = myHelperApi.FindServers(serverUrl);
foreach (ApplicationDescription ad in servers)
{
foreach (string url in ad.DiscoveryUrls)
{
EndpointDescriptionCollection endpoints = myHelperApi.GetEndpoints(url);
foundEndpoints = foundEndpoints || endpoints.Count > 0;
foreach (EndpointDescription ep in endpoints)
{
string securityPolicy = ep.SecurityPolicyUri.Remove(0, 43);
if (!DiscoveredServersLV.Items.ContainsKey(ep.Server.ApplicationName.Text))
{
string[] row = { ep.Server.ApplicationName.Text, ep.EndpointUrl, ep.SecurityMode + "-" + securityPolicy };
ListViewItem listViewItem = new ListViewItem(row);
DiscoveredServersLV.Items.Add(listViewItem).Tag = ep;
DiscoveredServersLV.AutoResizeColumns(ColumnHeaderAutoResizeStyle.ColumnContent);
}
}
}
if (!foundEndpoints)
{
MessageBox.Show("Could not get any Endpoints", "Error");
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error");
}
}
public int Connect()
{
try
{
List <object> Listtmp = new List <object>();
ApplicationDescriptionCollection servers = null;
servers = m_Server.FindServers(discoveryUrl.ToString());
//for (int i = 0; i < servers.Count; i++)
//{
// // Create discovery client and get the available endpoints.
EndpointDescriptionCollection endpoints = null;
// string sUrl;
// sUrl = servers[i].DiscoveryUrls[0];
// discoveryUrl = new Uri(sUrl);
endpoints = m_Server.GetEndpoints(discoveryUrl.ToString());
// Create wrapper and fill the combobox.
for (int j = 0; j < endpoints.Count; j++)
{
// Create endpoint wrapper.
EndpointWrapper wrapper = new EndpointWrapper(endpoints[j]);
Listtmp.Add(wrapper);
// Add it to the combobox.
// UrlCB.Items.Add(wrapper);
}
if (Listtmp != null)
{
// Call connect with URL
//m_Server.Connect(Listtmp[0].ToString(), "none", MessageSecurityMode.None, false, "", "");
m_Server.Connect(((EndpointWrapper)Listtmp[0]).Endpoint, false, "", "");
}
else
{
m_Connected = false;
return(-1);
}
//}
//servers[i].ApplicationName;
m_Connected = true;
return(0);
}
catch
{
//MessageBox.Show(ex.Message);
if (m_Connected)
{
// Disconnect from server.
Disconnect();
}
m_Connected = false;
return(-1);
}
}
//private EndpointDescription CreateEndpointDescription(string url, string secPolicy, MessageSecurityMode msgSecMode)
//{
// // create the endpoint description.
// EndpointDescription endpointDescription = new EndpointDescription();
// // submit the url of the endopoint
// endpointDescription.EndpointUrl = url;
// // specify the security policy to use.
// endpointDescription.SecurityPolicyUri = secPolicy;
// endpointDescription.SecurityMode = msgSecMode;
// // specify the transport profile.
// endpointDescription.TransportProfileUri = Profiles.UaTcpTransport;
// return endpointDescription;
//}
//url="opc.tcp://192.168.0.15:4840"
private EndpointDescription getEndpointDescription(string url)
{
EndpointDescription ret = null;
EndpointDescriptionCollection endpoints = myClientHelperAPI.GetEndpoints(url);
if (endpoints != null && endpoints.Count > 0)
{
ret = endpoints[0];
}
return(ret);
}
/// <summary>
/// Event handlers called by the UI
/// </summary>,
#region UserInteractionHandlers
private void EndpointButton_Click(object sender, EventArgs e)
{
bool foundEndpoints = false;
endpointListView.Items.Clear();
//The local discovery URL for the discovery server
string discoveryUrl = discoveryTextBox.Text;
try
{
ApplicationDescriptionCollection servers = myClientHelperAPI.FindServers(discoveryUrl);
foreach (ApplicationDescription ad in servers)
{
foreach (string url in ad.DiscoveryUrls)
{
try
{
EndpointDescriptionCollection endpoints = myClientHelperAPI.GetEndpoints(url);
foundEndpoints = foundEndpoints || endpoints.Count > 0;
foreach (EndpointDescription ep in endpoints)
{
string securityPolicy = ep.SecurityPolicyUri.Remove(0, 42);
string key = "[" + ad.ApplicationName + "] " + " [" + ep.SecurityMode + "] " + " [" + securityPolicy + "] " + " [" + ep.EndpointUrl + "]";
if (!endpointListView.Items.ContainsKey(key))
{
endpointListView.Items.Add(key, key, 0).Tag = ep;
}
}
}
catch (ServiceResultException sre)
{
//If an url in ad.DiscoveryUrls can not be reached, myClientHelperAPI will throw an Exception
MessageBox.Show(sre.Message, "Error");
}
}
if (!foundEndpoints)
{
MessageBox.Show("Could not get any Endpoints", "Error");
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Error");
}
}
private void UrlCB_DropDown(object sender, EventArgs e)
{
try
{
Uri discoveryUrl = null;
// Create the uri from hostname.
string sUrl = "opc.tcp://" + label1.Text + textBox1.Text + ":4840";
// Has the port been entered by the user?
// Create the uri itself.
discoveryUrl = new Uri(sUrl);
// Clear all items of the ComboBox.
UrlCB.Items.Clear();
UrlCB.Text = "";
// Look for servers
ApplicationDescriptionCollection servers = null;
//Discovery discovery = new Discovery();
servers = m_Server.FindServers(discoveryUrl.ToString());
// Populate the drop down list with the endpoints for the available servers.
for (int iServer = 0; iServer < servers.Count; iServer++)
{
try
{
// Create discovery client and get the available endpoints.
EndpointDescriptionCollection endpoints = null;
sUrl = servers[iServer].DiscoveryUrls[0];
discoveryUrl = new Uri(sUrl);
endpoints = m_Server.GetEndpoints(discoveryUrl.ToString());
// Create wrapper and fill the combobox.
for (int i = 0; i < endpoints.Count; i++)
{
// Create endpoint wrapper.
EndpointWrapper wrapper = new EndpointWrapper(endpoints[i]);
// Add it to the combobox.
UrlCB.Items.Add(wrapper);
}
// Update status label.
toolStripStatusLabel.Text = "GetEndpoints succeeded for " + servers[iServer].ApplicationName;
btn_Connect.Enabled = true;
}
catch (Exception)
{
// Update status label.
toolStripStatusLabel.Text = "GetEndpoints failed for " + servers[iServer].ApplicationName;
}
}
}
catch (Exception ex)
{
// Update status label.
toolStripStatusLabel.Text = "FindServers failed:" + ex.ToString();
}
}
/// <summary>
/// Expands the drop down list of the ComboBox to display available servers and endpoints.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="System.EventArgs"/> instance containing the event data.</param>
private void UrlCB_DropDown(object sender, EventArgs e)
{
try
{
Uri discoveryUrl = null;
// Check the text property of the Server textbox
if (NodeTB.Text.Length == 0)
{
// Set the uri of the local discovery server by default.
discoveryUrl = new Uri("opc.tcp://localhost:4840");
}
else
{
// Create the uri from hostname.
string sUrl;
// Has the port been entered by the user?
char seperator = ':';
string[] strPortCheck = NodeTB.Text.Split(seperator);
if (strPortCheck.Length > 1)
{
sUrl = "opc.tcp://" + NodeTB.Text;
}
else
{
sUrl = "opc.tcp://" + NodeTB.Text + ":4840";
}
// Create the uri itself.
discoveryUrl = new Uri(sUrl);
}
// Set wait cursor.
Cursor = Cursors.WaitCursor;
// Clear all items of the ComboBox.
UrlCB.Items.Clear();
UrlCB.Text = "";
// Look for servers
ApplicationDescriptionCollection servers = null;
//Discovery discovery = new Discovery();
servers = m_Server.FindServers(discoveryUrl.ToString());
// Populate the drop down list with the endpoints for the available servers.
for (int iServer = 0; iServer < servers.Count; iServer++)
{
try
{
// Create discovery client and get the available endpoints.
EndpointDescriptionCollection endpoints = null;
string sUrl;
sUrl = servers[iServer].DiscoveryUrls[0];
discoveryUrl = new Uri(sUrl);
endpoints = m_Server.GetEndpoints(discoveryUrl.ToString());
// Create wrapper and fill the combobox.
for (int i = 0; i < endpoints.Count; i++)
{
// Create endpoint wrapper.
EndpointWrapper wrapper = new EndpointWrapper(endpoints[i]);
// Add it to the combobox.
UrlCB.Items.Add(wrapper);
}
// Update status label.
toolStripStatusLabel.Text = "GetEndpoints succeeded for " + servers[iServer].ApplicationName;
toolStripStatusLabel.Image = global::Siemens.OpcUA.Client.Properties.Resources.success;
}
catch (Exception)
{
// Update status label.
toolStripStatusLabel.Text = "GetEndpoints failed for " + servers[iServer].ApplicationName;
toolStripStatusLabel.Image = global::Siemens.OpcUA.Client.Properties.Resources.error;
}
}
// Set default cursor.
Cursor = Cursors.Default;
}
catch (Exception ex)
{
// Update status label.
toolStripStatusLabel.Text = "FindServers failed:" + ex.ToString();
toolStripStatusLabel.Image = global::Siemens.OpcUA.Client.Properties.Resources.error;
}
}