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  1. Forum
  3. Discussions
  5. QuickOPC-UA in .NET
  7. Discovery, Browsing, Browse Dialogs and Controls
  9. How can I set LooseReferenceTypes = True when doing programmatic browsing?

How can I set LooseReferenceTypes = True when doing programmatic browsing?

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17 Jul 2024 06:47 #12960 by support
Replied by support on topic How can I set LooseReferenceTypes = True when doing programmatic browsing?
Hello.

BrowseDataNodes is just a convenience method that makes a Browse call that uses specific UABrowseParameters. So the whole point of having it is that it is fixed in what it is doing and it cannot be changed.

The Browse call, on the other hand, is flexible in that you can pass to it any UABrowseParameters you want..

So if you need to make a choice a programmatically between the two behaviors, you cannot use just BrowseDataNodes.

Best regards,

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16 Jul 2024 18:47 #12959 by micham
Replied by micham on topic How can I set LooseReferenceTypes = True when doing programmatic browsing?
Hi,

Thank you for your answer. Note: we are using:
nodeElementCollection = client.BrowseDataNodes(endpointDescriptor, parentNodeDescriptor)

and not:

client.Browse()

Do you have a sample code with:
client.BrowseDataNodes() ?


Thank you.

Michael

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15 Jul 2024 16:02 #12948 by support
Replied by support on topic How can I set LooseReferenceTypes = True when doing programmatic browsing? 
 

    Dim endpointDescriptor As UAEndpointDescriptor = "opc.tcp://opcua.demo-this.com:51210/UA/SampleServer"

    Dim nodeDescriptor As UANodeDescriptor = UAObjectIds.ObjectsFolder

 

    Dim client As New EasyUAClient()

    Dim nodeElementCollection As UANodeElementCollection = client.Browse(

      endpointDescriptor,

      nodeDescriptor,

      New UABrowseParameters(

        UANodeClass.Object Or UANodeClass.Variable,

        {UAReferenceTypeIds.HierarchicalReferences}))

 

 

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15 Jul 2024 14:11 #12946 by micham
Replied by micham on topic How can I set LooseReferenceTypes = True when doing programmatic browsing?
Hi,

Do you have a sample code for this?

Thank you.

Michael

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15 Jul 2024 06:06 #12944 by support
Replied by support on topic How can I set LooseReferenceTypes = True when doing programmatic browsing?
Hello.

Use the Browse call with folllowing BrowseParameters:

- NodeClasses includes Objects and Variables
- ReferenceTypeIds contains UAReferenceTypeIds.HierarchicalReferences
- IncludeSubtypes is True (this is the default anyway)
- BrowseDirections is Forward (this is the default anyway)

Regards

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13 Jul 2024 16:30 #12941 by micham
How can I set LooseReferenceTypes = True when doing programmatic browsing? was created by micham
How can I set LooseReferenceTypes = True when doing programmatic browsing?

Using the dialog browsing, I using this:

uaDataDialog1.LooseReferenceTypes = True

Which object should I set to allow LooseReferenceTypes = True ?

Thank you.

Michael

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Moderators: support
  1. Forum
  3. Discussions
  5. QuickOPC-UA in .NET
  7. Discovery, Browsing, Browse Dialogs and Controls
  9. How can I set LooseReferenceTypes = True when doing programmatic browsing?
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