QuickOPC User's Guide and Reference
GetCategories Method (IReadOnlyAliasRepository)



OpcLabs.BaseLib Assembly > OpcLabs.BaseLib.Aliasing.Internal Namespace > IReadOnlyAliasRepository Interface : GetCategories Method
Gets names of alias categories in the repository.
Syntax
'Declaration
 
<NotNullAttribute()>
Function GetCategories() As ValueResult(Of IEnumerable(Of String))
'Usage
 
Dim instance As IReadOnlyAliasRepository
Dim value As ValueResult(Of IEnumerable(Of String))
 
value = instance.GetCategories()
[NotNull()]
ValueResult<IEnumerable<string>> GetCategories()
[NotNull()]
ValueResult<IEnumerable<String^>^>^ GetCategories(); 

Return Value

Returns a value result which contains a sequence of alias category names in case of success, or an error in case of failure.
Remarks

This method does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

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

See Also

Reference

IReadOnlyAliasRepository Interface
IReadOnlyAliasRepository Members