MessageSecurityPreference Property (_UAEndpointSelectionPolicy)

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

Visual Basic
C#
C++/CLI

'Declaration
 
Property MessageSecurityPreference As Sign

'Usage
 
Dim instance As _UAEndpointSelectionPolicy
Dim value As Sign
 
instance.MessageSecurityPreference = value
 
value = instance.MessageSecurityPreference

Sign MessageSecurityPreference {get; set;}

property Sign MessageSecurityPreference {
   Sign get();
   void set (    Sign value);
}

Remarks

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

Negative: The endpoints without message security will be given a major preference.
None: The SecurityLevel provided by the server will be followed without change.
Positive: The endpoints with message security will be given a major preference.

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 OpcLabs.EasyOpc.UA.Engine.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 OpcLabs.EasyOpc.UA.Engine.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

Reference

_UAEndpointSelectionPolicy Interface
_UAEndpointSelectionPolicy Members

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