OPC Studio User's Guide and Reference
ServerClass Property (ServerDescriptor)



OpcLabs.EasyOpcClassicCore Assembly > OpcLabs.EasyOpc Namespace > ServerDescriptor Class : ServerClass Property
Contains {CLSID} (if given) or ProgID of the OPC server.
Syntax
'Declaration
 
<NotNullAttribute()>
Public Shadows Property ServerClass As String
'Usage
 
Dim instance As ServerDescriptor
Dim value As String
 
instance.ServerClass = value
 
value = instance.ServerClass
[NotNull()]
public new string ServerClass {get; set;}
[NotNull()]
public:
new property String^ ServerClass {
   String^ get();
   void set (    String^ value);
}

Property Value

The value of this property cannot be null (Nothing in Visual Basic).

The default value of this property is "" (String.Empty).

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

There are maximum length limitations on the server class.

The ServerClass and ServerProgram return different values if both the CLSID and ProgID are present.

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