OPC Studio User's Guide and Reference
IsValidCategoryId Method



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.AlarmsAndEvents Namespace > AEUtilities Class : IsValidCategoryId Method
The category Id to be tested.
Determines whether a given category Id value is valid in OPC Alarms&Events.
Syntax
'Declaration
 
<PureAttribute()>
Public Shared Function IsValidCategoryId( _
   ByVal categoryId As Long _
) As Boolean
'Usage
 
Dim categoryId As Long
Dim value As Boolean
 
value = AEUtilities.IsValidCategoryId(categoryId)
[Pure()]
public static bool IsValidCategoryId( 
   long categoryId
)
[Pure()]
public:
static bool IsValidCategoryId( 
   int64 categoryId
) 

Parameters

categoryId
The category Id to be tested.

Return Value

true if categoryId is a valid category Id; false otherwise.
Remarks

This method is pure, i.e. it does not have observable side effects.

This method or property 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 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

See Also