'Declaration
 
<ExtensionAttribute()>
<NotNullAttribute()>
Public Overloads Shared Function BrowseTree( _
   ByVal client As IEasyDAClient, _
   ByVal browseArguments As DABrowseArguments, _
   ByVal nodeElementsTransformer As Func(Of IEnumerable(Of DANodeElement),IEnumerable(Of DANodeElement)) _
) As ITreeTraversable(Of DANodeTreePosition)

'Usage
 
Dim client As IEasyDAClient
Dim browseArguments As DABrowseArguments
Dim nodeElementsTransformer As Func(Of IEnumerable(Of DANodeElement),IEnumerable(Of DANodeElement))
Dim value As ITreeTraversable(Of DANodeTreePosition)
 
value = IEasyDAClientExtension2.BrowseTree(client, browseArguments, nodeElementsTransformer)

[Extension()]
[NotNull()]
public static ITreeTraversable<DANodeTreePosition> BrowseTree( 
   IEasyDAClient client,
   DABrowseArguments browseArguments,
   Func<IEnumerable<DANodeElement>,IEnumerable<DANodeElement>> nodeElementsTransformer
)

[Extension()]
[NotNull()]
public:
static ITreeTraversable<DANodeTreePosition^>^ BrowseTree( 
   IEasyDAClient^ client,
   DABrowseArguments^ browseArguments,
   Func<IEnumerable<DANodeElement^>^,IEnumerable<DANodeElement^>^>^ nodeElementsTransformer
) 

Parameters

client

The client object that will perform the operation.

browseArguments

Holds arguments needed to browse OPC DA server nodes.

nodeElementsTransformer

Transforms a sequence of child node elements before it is used for further browsing.

Return Value

If you want to enumerate through a sequence of the tree nodes, convert the result to a sequence using the OpcLabs.BaseLib.Graphs.Extensions.ITreeTraversableExtension.ToEnumerable<T> method.

The method automatically prevents recursion into nodes that have already been traversed.

The root position in a tree will correspond to the specified starting node. The OpcLabs.EasyOpc.DataAccess.Graphs.DANodeTreePosition object for the root is special one, in that from its OpcLabs.EasyOpc.DataAccess.AddressSpace.DANodeElement properties, only its ItemId is filled in.

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows