OPC Studio User's Guide and Reference
FromString Method (AENodeDescriptor)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc.AlarmsAndEvents Namespace > AENodeDescriptor Class : FromString Method
Contains OPC qualified name (empty string for the root or if unknown).

The value of this parameter can be null (Nothing in Visual Basic).

Converts a string containing a qualified name to an AENodeDescriptor object.
Syntax
'Declaration
 
<CanBeNullAttribute()>
Public Shared Function FromString( _
   ByVal qualifiedName As String _
) As AENodeDescriptor
'Usage
 
Dim qualifiedName As String
Dim value As AENodeDescriptor
 
value = AENodeDescriptor.FromString(qualifiedName)
[CanBeNull()]
public static AENodeDescriptor FromString( 
   string qualifiedName
)
[CanBeNull()]
public:
static AENodeDescriptor^ FromString( 
   String^ qualifiedName
) 

Parameters

qualifiedName
Contains OPC qualified name (empty string for the root or if unknown).

The value of this parameter can be null (Nothing in Visual Basic).

Return Value

Returns an AENodeDescriptor converted from the input argument.

This method can return null (Nothing in Visual Basic).

Remarks

In languages that support implicit conversions (such as C# or VB.NET), in many cases you do not have call this method explicitly. When indicated, a call to an available equivalent implicit conversion operator will be created by the compiler automatically.

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