QuickOPC User's Guide and Reference
BrowseTree(IDirectoryContents2,Boolean) Method



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.Extensions.FileProviders Namespace > IDirectoryContents2Extension Class > BrowseTree Method : BrowseTree(IDirectoryContents2,Boolean) Method
The directory contents object that will perform the operation.
Specifies whether to include file objects in the returned tree.
Browses a tree of subdirectories and (optionally) files in the given directory, recursively.
Syntax
'Declaration
 
<ExtensionAttribute()>
<NotNullAttribute()>
Public Overloads Shared Function BrowseTree( _
   ByVal directoryContents2 As IDirectoryContents2, _
   ByVal includeFiles As Boolean _
) As ITreeTraversable(Of FileSystemNodeTreePosition)
'Usage
 
Dim directoryContents2 As IDirectoryContents2
Dim includeFiles As Boolean
Dim value As ITreeTraversable(Of FileSystemNodeTreePosition)
 
value = IDirectoryContents2Extension.BrowseTree(directoryContents2, includeFiles)

Parameters

directoryContents2
The directory contents object that will perform the operation.
includeFiles
Specifies whether to include file objects in the returned tree.

Return Value

Returns an object that allows to traverse the tree of directories and files.
Exceptions
ExceptionDescription

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

Remarks

A directory contents that supports IDirectoryContents2 is needed for browsing into subdirectories. If you only have Microsoft.Extensions.FileProviders.IDirectoryContents but also a Microsoft.Extensions.FileProviders.IFileProvider, you can use OpcLabs.BaseLib.Extensions.FileProviders.Internal.FileSystemNodeTreePositionExtension.Traverse.

Requirements

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

See Also