DiscoveryHost Property (EasyUAClientInstanceParameters)

The name of the machine that runs the discovery server that will be used for discovery tasks.

Syntax

[NotNull()]
public string DiscoveryHost {get; set;}

[NotNull()]
public:
property String^ DiscoveryHost {
   String^ get();
   void set (    String^ value);
}

'Declaration
 
<NotNullAttribute()>
Public Property DiscoveryHost As String

'Usage
 
Dim instance As EasyUAClientInstanceParameters
Dim value As String
 
instance.DiscoveryHost = value
 
value = instance.DiscoveryHost

Property Value

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

The default value of this property is "localhost".

Exceptions

Exception Description

Exception	Description
System.ArgumentNullException	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.

System.ArgumentNullException

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

In order to obtain or modify this parameter, access OpcLabs.EasyOpc.UA.EasyUAClientCore.InstanceParameters.

Not directly used on COM platform by any of the OpcLabs.EasyOpc.UA.ComTypes._EasyUAClient methods, because wherever applicable, they always include an argument that specifies this value explicitly.

See also in Knowledge Base: Technical note-OPC UA Discovery in QuickOPC.

The getter method of this property is pure, i.e. it does not have observable side effects.

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

EasyUAClientInstanceParameters Class
EasyUAClientInstanceParameters Members

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