OPC Studio User's Guide and Reference
FromResourceAddress Method



OpcLabs.EasyOpcUA Assembly > OpcLabs.EasyOpc.UA.PubSub Namespace > UAPubSubConnectionDescriptor Class : FromResourceAddress Method
Network address information in the form of a resource descriptor (can be represented as URL string).

Because the OpcLabs.BaseLib.Networking.ResourceAddress has an implicit conversion from OpcLabs.BaseLib.ResourceDescriptor and System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a OpcLabs.BaseLib.ResourceDescriptor object, or a string (descriptor string - usually a URL) in place of this parameter, and the corresponding resource address will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.BaseLib.Networking.ResourceAddress.FromResourceDescriptor or OpcLabs.BaseLib.Networking.ResourceAddress.FromString static method instead.

The value of this parameter can be null (Nothing in Visual Basic).

Converts a resource address to a PubSub connection descriptor.
Syntax
'Declaration
 
<NotNullAttribute()>
Public Shared Function FromResourceAddress( _
   ByVal resourceAddress As ResourceAddress _
) As UAPubSubConnectionDescriptor
'Usage
 
Dim resourceAddress As ResourceAddress
Dim value As UAPubSubConnectionDescriptor
 
value = UAPubSubConnectionDescriptor.FromResourceAddress(resourceAddress)
[NotNull()]
public static UAPubSubConnectionDescriptor FromResourceAddress( 
   ResourceAddress resourceAddress
)
[NotNull()]
public:
static UAPubSubConnectionDescriptor^ FromResourceAddress( 
   ResourceAddress^ resourceAddress
) 

Parameters

resourceAddress
Network address information in the form of a resource descriptor (can be represented as URL string).

Because the OpcLabs.BaseLib.Networking.ResourceAddress has an implicit conversion from OpcLabs.BaseLib.ResourceDescriptor and System.String, in languages that support implicit conversion operators (such as C# or VB.NET), you can simply use a OpcLabs.BaseLib.ResourceDescriptor object, or a string (descriptor string - usually a URL) in place of this parameter, and the corresponding resource address will be constructed automatically. When the implicit conversion operators are not supported (such as with Python.NET), you can use the OpcLabs.BaseLib.Networking.ResourceAddress.FromResourceDescriptor or OpcLabs.BaseLib.Networking.ResourceAddress.FromString static method instead.

The value of this parameter can be null (Nothing in Visual Basic).

Return Value

Returns a PubSub connection descriptor for connection to the resource specified by resourceAddress.

This method never returns null (Nothing in Visual Basic).

Remarks

In languages that support implicit conversions (such as C# or VB.NET), in many cases you do not have call this method explicitly. When indicated, a call to an available equivalent implicit conversion operator will be created by the compiler automatically.

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