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Hi
What version of VIsual STUDIO should I use? I have trouble loading the symbols in VISUAL STUDO 2017. So I can not establish breakpoints or debugging step by step
Sorry sorry. The idea is create a class derived from Server (include writeVQT) and add “public override write(IOsyncIO:write)” to the new class. Right?
But, how do I include public override write?
I am trying this
namespace OpcCom.Da
{public class serverNew : OpcCom.Da.Server
{
public IdentifiedResult[] Write(ItemValue[] items)
{
if (this.m_server == null)
throw new NotConnectedException();
return ((????)this.m_group).Write(items);
}
}
}
m_group execute public override write but is private object. So i can use it in another class. I am stop here.How can i debugg librarys in visual studio?. It ask me to reference the library to an aplication that uses that library.
I managed to open without errors. only shows warningsI am tryng to create a class called “serverNew” from OpcCom.Da20.Server class. I know that serverNew inherits all the methods of OpcCom.Da20.Server class. So that, that include IOsyncIO:write method. So, What is inside new class?
Hi,
Yes. I can try. But I open kpOpc project in visual studio and shown 6 error and 82 warnings.
Hi,
Yes. I can try. But I open kpOpc project in visual studio and shown 6 error and 82 warnings.
Hi
Searching the implementation of da.server.write:
You used this method
And please take a look closely to this screenshots. There is a implementation of da.write
https://imgur.com/a/idmZjhe
this is a pubic override method
How can this override writeVQT methods?Yes, I can play with it. I learned how to decompiled with dotpeek and how to export to a visual studio proyect. Now, daserver is used a lot in kplogic. So I have a:
protected override IdentifiedResult[] Write(ItemIdentifier[] itemIDs, ItemValue[] items)
than uses:
.
.
.
try
{
((IOPCSyncIO) this.m_group).Write(arrayList1.Count, phServer, pItemValues, out ppErrors);
}
catch (Exception ex)I still do not understand how da.server could call “protected override IdentifiedResult[] Write(ItemIdentifier[] itemIDs, ItemValue[]”
Is it possible?
Hi, I found this, where OpcRcw.Da.IOPCSyncIO.Write(Int32, Int32[], Object[], IntPtr&) : Void
is Used By
OpcCom.Da20.Server.Write(ItemValue[]) : IdentifiedResult[]
OpcCom.Da20.Subscription.Write(ItemIdentifier[], ItemValue[]) : IdentifiedResult[]So, to use IOPCSyncIO.Write in KpOpclogic, the goal is to create a class that is derived from server and add IOPCSyncIO.Write to this new class. Am I right?
can you try to remove the quality and the timestamp in the writeVQT method that kplogic uses? please.
I think the main difference between the methods is than IOPCSyncIO:write only use Value, instead writeVQT (value, quality, timestamp). Am I right?
As I understand in the code there are some exceptions where another method is used in case you can not write with the default.
I am seeing here for example:
Hi,
Here is all the write method inside Group class
but I really do not see m_group
Hi
“21 protected object m_group;”Hi
Do you know a software that open and debug dll files? with visual studio does not show the code.
But when i search in write:
goes to:
I will try to debug using visual studio code.
“public interface Isubscription : IDisposable”
Go to implementation in write- line:31, goes to two subscription.cs
