} // end Terminate
public int InitializeDaObjects()
{
int connectResult = (int)EnumResultCode.E_FAIL;
m_executionOptions = new ExecutionOptions();
try
{
// TODO add your server URL here
// this is the server url for Softing OPCToolbox Demo Server
// first choice is COM-DA
string url = "opcda:///Softing.OPCToolboxDemo_ServerDA.1/{2E565242-B238-11D3-842D-0008C779D775}";
//uncomment if you need an XML-DA access
//string url ="http://localhost:8079/OPC/DA";
m_daSession = new MyDaSession(url);
connectResult = m_daSession.Connect(true, false, m_executionOptions);
}
catch (Exception exc)
{
GetApplication().Trace(
EnumTraceLevel.ERR,
EnumTraceGroup.USER,
"OpcClient::InitializaDaObjects",
exc.ToString());
} // end try...catch
return(connectResult);
} // end InitializeDaObjects
} // end ProcessCommandLine
public void Terminate()
{
if (m_daSession.CurrentState != EnumObjectState.DISCONNECTED)
{
m_daSession.Disconnect(new ExecutionOptions());
}
GetApplication().RemoveDaSession(m_daSession);
GetApplication().Terminate();
m_daSession = null;
m_executionOptions = null;
} // end Terminate
public OpcForm(OutProc anOutProc)
{
InitializeComponent();
try
{
m_outProc = anOutProc;
m_opcClient = m_outProc.OpcClient;
m_session = m_opcClient.GetSession();
m_executionOptions = m_opcClient.GetExecutionOptions();
//create the browse tree root element
TreeNode treeRoot = new TreeNode(m_session.Url, 0, 0);
DaAddressSpaceElement rootDaAddressSpaceElement = new DaAddressSpaceElement(EnumAddressSpaceElementType.BRANCH, String.Empty, string.Empty, string.Empty, 0, null);
rootDaAddressSpaceElement.Session = m_session;
treeRoot.Tag = rootDaAddressSpaceElement;
itemsTreeView.Nodes.Add(treeRoot);
DaAddressSpaceElement[] addressSpaceElements = null;
#region Browse branches
//---------------------
DaAddressSpaceElementBrowseOptions browseOptions = new DaAddressSpaceElementBrowseOptions();
browseOptions.ElementTypeFilter = EnumAddressSpaceElementType.BRANCH;
//get the root's children
if (ResultCode.SUCCEEDED(m_session.Browse(
((DaAddressSpaceElement)treeRoot.Tag).ItemId,
((DaAddressSpaceElement)treeRoot.Tag).ItemPath,
browseOptions,
out addressSpaceElements,
m_executionOptions)))
{
if (addressSpaceElements != null)
{
for (int i = 0; i < addressSpaceElements.Length; i++)
{
TreeNode node = new TreeNode(addressSpaceElements[i].Name, 1, 1);
node.Tag = addressSpaceElements[i];
treeRoot.Nodes.Add(node);
} //end for
}
} //end if
//-
#endregion
addressSpaceElements = null;
#region Browse Leaves
//-------------------
browseOptions.ElementTypeFilter = EnumAddressSpaceElementType.LEAF;
//get the root's children
if (ResultCode.SUCCEEDED(m_session.Browse(
((DaAddressSpaceElement)treeRoot.Tag).ItemId,
((DaAddressSpaceElement)treeRoot.Tag).ItemPath,
browseOptions,
out addressSpaceElements,
m_executionOptions)))
{
if (addressSpaceElements != null)
{
for (int i = 0; i < addressSpaceElements.Length; i++)
{
TreeNode node = new TreeNode(addressSpaceElements[i].Name, 2, 2);
node.Tag = addressSpaceElements[i];
treeRoot.Nodes.Add(node);
} //end for
} // end if
} //end if
//-
#endregion
#region GetDaProperties
//---------------------
DaProperty[] daProperties = null;
m_propertyGetOptions.WhatPropertyData = EnumPropertyData.ALL;
if (ResultCode.SUCCEEDED(rootDaAddressSpaceElement.GetDaProperties(
m_propertyGetOptions,
out daProperties,
m_executionOptions)))
{
if (daProperties != null)
{
for (int i = 0; i < daProperties.Length; i++)
{
TreeNode node = new TreeNode(daProperties[i].Name, 3, 3);
//add all properties except OPC-specific properties
if (daProperties[i].Id >= 100)
{
treeRoot.Nodes.Add(node);
}
} //end for
}
} // end if
//-
#endregion
}
catch (Exception exc)
{
MessageBox.Show(exc.ToString());
} // end try...catch
} // end constructor
