BrowseProperties Method (IEasyDAClient)

Browse for available item properties of a specified OPC item. Specify server descriptor, and node descriptor.

Syntax

[ElementsNotNull()]
[NotNull()]
DAPropertyElementCollection BrowseProperties( 
   ServerDescriptor serverDescriptor,
   DANodeDescriptor nodeDescriptor
)

[ElementsNotNull()]
[NotNull()]
DAPropertyElementCollection^ BrowseProperties( 
   ServerDescriptor^ serverDescriptor,
   DANodeDescriptor^ nodeDescriptor
)

'Declaration
 
<ElementsNotNullAttribute()>
<NotNullAttribute()>
Function BrowseProperties( _
   ByVal serverDescriptor As ServerDescriptor, _
   ByVal nodeDescriptor As DANodeDescriptor _
) As DAPropertyElementCollection

'Usage
 
Dim instance As IEasyDAClient
Dim serverDescriptor As ServerDescriptor
Dim nodeDescriptor As DANodeDescriptor
Dim value As DAPropertyElementCollection
 
value = instance.BrowseProperties(serverDescriptor, nodeDescriptor)

Parameters

serverDescriptor: The OPC server involved in the operation.
nodeDescriptor: Descriptor of the node for which the properties will be browsed.

Return Value

The method returns a keyed collection of OpcLabs.EasyOpc.DataAccess.AddressSpace.DAPropertyElement values, each containing information about a particular property found. The keys of the keyed collection are the IDs of the properties.

Exceptions

Exception	Description
OpcLabs.EasyOpc.OperationModel.OpcException	Thrown when the OPC operation fails.
System.ArgumentNullException	A `null` reference (`Nothing` in Visual Basic) is passed to a method that does not accept it as a valid argument.

Remarks

Using implicit conversions, you can pass an item ID in place of node descriptor.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2012, Windows Server 2016; .NET Core, .NET 5, .NET 6: Linux, macOS, Microsoft Windows

Reference

IEasyDAClient Interface
IEasyDAClient Members