ApplicationUriString Property (UAApplicationManifest)

The OPC-UA client application URI string. When empty, the component will make a URI string automatically.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public Shadows Property ApplicationUriString As String

'Usage
 
Dim instance As UAApplicationManifest
Dim value As String
 
instance.ApplicationUriString = value
 
value = instance.ApplicationUriString

public new string ApplicationUriString {get; set;}

public:
new property String^ ApplicationUriString {
   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

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

The application URI is used:

In the application instance certificate, when the component creates it.
In the client description, when the OPC-UA session is created.

In order to obtain or modify this parameter, access the OpcLabs.EasyOpc.UA.Engine.UAClientServerApplicationParameters.ApplicationManifest property of OpcLabs.EasyOpc.UA.Application.EasyUAApplicationCore.ApplicationParameters property of static EasyUAApplication.Instance.

See OPC UA Application URI Derivation for the format syntax, and more details about how the application URI is determined.

When this object is used to override properties of another application manifest, an empty value in this property keeps the original value. A non-empty value in this property overrides the original value. Use "#" to set the value back to an empty string.

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

UAApplicationManifest Class
UAApplicationManifest Members
ApplicationUriTemplateString Property

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