OPC Studio User's Guide and Reference
MessageSecurityPreference Property (UAEndpointSelectionPolicy)



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.Engine Namespace > UAEndpointSelectionPolicy Class : MessageSecurityPreference Property
If Positive, endpoints that provide message security are preferred for selection. If Negative, endpoints that do not provide message security are preferred for selection.
Syntax
'Declaration
 
Public Property MessageSecurityPreference As Sign
'Usage
 
Dim instance As UAEndpointSelectionPolicy
Dim value As Sign
 
instance.MessageSecurityPreference = value
 
value = instance.MessageSecurityPreference
public Sign MessageSecurityPreference {get; set;}
public:
property Sign MessageSecurityPreference {
   Sign get();
   void set (    Sign value);
}

Property Value

The default value of this property is Negative (Sign.Negative).

Remarks

This setting influences how the best endpoint is selected. Following values are possible for this setting:

In order to obtain or modify this parameter, in the default state (when OpcLabs.EasyOpc.UA.EasyUAClientCore.Isolated equals to false), access EndpointSelectionPolicy property of UAClientAdaptableParameters.SessionParameters property of static OpcLabs.EasyOpc.UA.EasyUAClientCore.AdaptableParameters. If you have set OpcLabs.EasyOpc.UA.EasyUAClientCore.Isolated to true, you need to access EndpointSelectionPolicy property of UAClientAdaptableParameters.SessionParameters property of OpcLabs.EasyOpc.UA.EasyUAClientCore.IsolatedParameters.

Alternatively, you can override the endpoint selection policy for a specific endpoint by setting it to a non-null value in OpcLabs.EasyOpc.UA.UAEndpointDescriptor.EndpointSelectionPolicy.

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