DiscoveryHost Property (_EasyUAClientInstanceParameters)

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

Syntax

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

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

'Declaration
 
<NotNullAttribute()>
Property DiscoveryHost As String

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

Property Value

This value of this property can be null (Nothing in Visual Basic).

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.

This member or type is for use from COM. It is not meant to be used from .NET or Python. Refer to the corresponding .NET member or type instead, if you are developing in .NET or Python.

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 Interface
_EasyUAClientInstanceParameters Members

Documentation Home, Send Feedback. Resources: Knowledge Base, Product Downloads. Technical support: Online Forums, FAQ.

Missing some example? Ask us for it on our Online Forums! You do not have to own a commercial license in order to use Online Forums, and we reply to every post.