public bool DoBrowse()
{
try
{
OPCNAMESPACETYPE opcorgi = theSrv.QueryOrganization();
// fill TreeView with all
treeOpcItems.Nodes.Clear();
TreeNode tnRoot = new TreeNode(rootname, 0, 1);
if (opcorgi == OPCNAMESPACETYPE.OPC_NS_HIERARCHIAL)
{
theSrv.ChangeBrowsePosition(OPCBROWSEDIRECTION.OPC_BROWSE_TO, ""); // to root
RecurBrowse(tnRoot, 1);
}
treeOpcItems.Nodes.Add(tnRoot);
tnRoot.ExpandAll(); // expand all nodes ([+] -> [-])
tnRoot.EnsureVisible(); // make the root visible
// preselect root (dummy)
treeOpcItems.SelectedNode = tnRoot; // force treeOpcItems_AfterSelect
}
catch (COMException /* eX */)
{
MessageBox.Show(this, "browse error!", "DoBrowse", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return(false);
}
return(true);
}
private void DoBrowse()
{
OPCNAMESPACETYPE opcorgi = this.QueryOrganization();
if (opcorgi == OPCNAMESPACETYPE.OPC_NS_HIERARCHIAL)
{
this.MoveToRoot();
this._Nodes = new List <OPCNode>();
RecurBrowse(_Nodes, null, null);
}
}
public void TestQueryOrganization01()
{
//testing --
OpcServer opcServer = new OpcServer();
Accessor opcServerAccessor = ReflectionAccessor.Wrap(opcServer);
opcServerAccessor.SetField("ifServer", new OPCServerComClass());
opcServerAccessor.SetField("ifBrowse", ((IOPCBrowseServerAddressSpace)opcServerAccessor.GetField("ifServer")));
//Test Procedure Call
OPCNAMESPACETYPE spaceType = opcServer.QueryOrganization();
//Post Condition Check
}
public void QueryOrganization(out OPCNAMESPACETYPE pNameSpaceType)
{
lock (this)
{
try
{
pNameSpaceType = OPCNAMESPACETYPE.OPC_NS_HIERARCHIAL;
}
catch (Exception e)
{
throw CreateException(e);
}
}
}
public void QueryOrganization(out OPCNAMESPACETYPE pNameSpaceType)
{
var methodName = nameof(IOPCBrowseServerAddressSpace) + "." + nameof(IOPCBrowseServerAddressSpace.QueryOrganization);
try
{
var server = BeginComCall <IOPCBrowseServerAddressSpace>(methodName, true);
server.QueryOrganization(out pNameSpaceType);
}
finally
{
EndComCall(methodName);
}
}
public void QueryOrganization(out OPCNAMESPACETYPE pNameSpaceType)
{
OpcCom.Da.Wrapper.Server server;
Monitor.Enter(server = this);
try
{
pNameSpaceType = OPCNAMESPACETYPE.OPC_NS_HIERARCHIAL;
}
catch (Exception exception)
{
throw CreateException(exception);
}
finally
{
Monitor.Exit(server);
}
}
public OPCNAMESPACETYPE QueryOrganization()
{
if (QueryOrganizationType != OPCNAMESPACETYPE.none)
{
return(QueryOrganizationType);
}
OPCNAMESPACETYPE ns;
ifBrowse.QueryOrganization(out ns);
if (ns != OPCNAMESPACETYPE.OPC_NS_HIERARCHIAL)
{
throw (new OnlyItemsException("此服务器只有Items，没有任何group节点"));
}
QueryOrganizationType = ns;
return(ns);
}
private void setPosition(string f_name)
{
int m_Res;
OPCNAMESPACETYPE cOpcNameSpace = OPCNAMESPACETYPE.OPC_NS_FLAT;
m_Res = m_pIBrowse.QueryOrganization(out cOpcNameSpace);
if (m_Res >= 0)
{
m_Res = m_pIBrowse.ChangeBrowsePosition(OPCBROWSEDIRECTION.OPC_BROWSE_TO, f_name);
if (m_Res < 0)
{
throw new Exception("Browser: Item " + f_name + " is not found.");
}
}
else
{
throw new Exception("Browser: QueryOrganization error.");
}
}
private bool DoBrowse()
{
try
{
OPCNAMESPACETYPE opcorgi = _theSrv.QueryOrganization();
// fill Tree with all
OpcNamespacesTree.Clear();
if (opcorgi == OPCNAMESPACETYPE.OPC_NS_HIERARCHIAL)
{
_theSrv.ChangeBrowsePosition(OPCBROWSEDIRECTION.OPC_BROWSE_TO, ""); // to root
RecurBrowse(OpcNamespacesTree, 1);
}
}
catch (COMException ex)
{
throw ex;
}
return(true);
}
void IOPCBrowseServerAddressSpace.QueryOrganization([MarshalAs(UnmanagedType.U4)] out OPCNAMESPACETYPE pNameSpaceType)
{
pNameSpaceType = OPCNAMESPACETYPE.OPC_NS_HIERARCHIAL;
}
private BrowseElement[] GetElements(int elementsFound, ItemIdentifier itemID, BrowseFilters filters, bool branches, ref BrowsePosition position)
{
EnumString enumString = null;
if (position == null)
{
IOPCBrowseServerAddressSpace iOPCBrowseServerAddressSpace = (IOPCBrowseServerAddressSpace)m_server;
OPCNAMESPACETYPE pNameSpaceType = OPCNAMESPACETYPE.OPC_NS_HIERARCHIAL;
try
{
iOPCBrowseServerAddressSpace.QueryOrganization(out pNameSpaceType);
}
catch (Exception e)
{
throw Interop.CreateException("IOPCBrowseServerAddressSpace.QueryOrganization", e);
}
if (pNameSpaceType == OPCNAMESPACETYPE.OPC_NS_FLAT)
{
if (branches)
{
return(new BrowseElement[0]);
}
if (itemID != null && itemID.ItemName != null && itemID.ItemName.Length > 0)
{
throw new ResultIDException(ResultID.Da.E_UNKNOWN_ITEM_NAME);
}
}
enumString = GetEnumerator(itemID?.ItemName, filters, branches, pNameSpaceType == OPCNAMESPACETYPE.OPC_NS_FLAT);
}
else
{
enumString = position.Enumerator;
}
ArrayList arrayList = new ArrayList();
BrowseElement browseElement = null;
int num = 0;
string[] array = null;
if (position != null)
{
num = position.Index;
array = position.Names;
position = null;
}
do
{
if (array != null)
{
for (int i = num; i < array.Length; i++)
{
if (filters.MaxElementsReturned != 0 && filters.MaxElementsReturned == arrayList.Count + elementsFound)
{
position = new BrowsePosition(itemID, filters, enumString, branches);
position.Names = array;
position.Index = i;
break;
}
browseElement = GetElement(itemID, array[i], filters, branches);
if (browseElement == null)
{
break;
}
arrayList.Add(browseElement);
}
}
if (position != null)
{
break;
}
array = enumString.Next(10);
num = 0;
}while (array != null && array.Length > 0);
if (position == null)
{
enumString.Dispose();
}
return((BrowseElement[])arrayList.ToArray(typeof(BrowseElement)));
}
public void QueryOrganization(out OPCNAMESPACETYPE pNameSpaceType)
{
var methodName = nameof(IOPCBrowseServerAddressSpace) + "." + nameof(IOPCBrowseServerAddressSpace.QueryOrganization);
try
{
var server = BeginComCall<IOPCBrowseServerAddressSpace>(methodName, true);
server.QueryOrganization(out pNameSpaceType);
}
finally
{
EndComCall(methodName);
}
}
private BrowseElement[] GetElements(int elementsFound, ItemIdentifier itemID, BrowseFilters filters, bool branches, ref OpcCom.Da20.BrowsePosition position)
{
EnumString enumerator = null;
if (position == null)
{
IOPCBrowseServerAddressSpace server = (IOPCBrowseServerAddressSpace)base.m_server;
OPCNAMESPACETYPE pNameSpaceType = OPCNAMESPACETYPE.OPC_NS_HIERARCHIAL;
try
{
server.QueryOrganization(out pNameSpaceType);
}
catch (Exception exception)
{
throw OpcCom.Interop.CreateException("IOPCBrowseServerAddressSpace.QueryOrganization", exception);
}
if ((pNameSpaceType == OPCNAMESPACETYPE.OPC_NS_FLAT) && branches)
{
return(new BrowseElement[0]);
}
enumerator = this.GetEnumerator((itemID != null) ? itemID.ItemName : null, filters, branches);
}
else
{
enumerator = position.Enumerator;
}
ArrayList list = new ArrayList();
BrowseElement element = null;
int index = 0;
string[] names = null;
if (position != null)
{
index = position.Index;
names = position.Names;
position = null;
}
Label_0089:
if (names != null)
{
for (int i = index; i < names.Length; i++)
{
if ((filters.MaxElementsReturned != 0) && (filters.MaxElementsReturned == (list.Count + elementsFound)))
{
position = new OpcCom.Da20.BrowsePosition(itemID, filters, enumerator, branches);
position.Names = names;
position.Index = i;
break;
}
element = this.GetElement(names[i], filters, branches);
if (element == null)
{
break;
}
list.Add(element);
}
}
if (position == null)
{
names = enumerator.Next(10);
index = 0;
if ((names != null) && (names.Length > 0))
{
goto Label_0089;
}
}
if (position == null)
{
enumerator.Dispose();
}
return((BrowseElement[])list.ToArray(typeof(BrowseElement)));
}
