LicenseInfo Property (EasyDAClientCore)

Provides dictionary of license data fields and their values.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public ReadOnly Property LicenseInfo As StringObjectDictionary

'Usage
 
Dim instance As EasyDAClientCore
Dim value As StringObjectDictionary
 
value = instance.LicenseInfo

public StringObjectDictionary LicenseInfo {get;}

public:
property StringObjectDictionary^ LicenseInfo {
   StringObjectDictionary^ get();
}

Property Value

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

The individual elements of the property value can be null (Nothing in Visual Basic).

Remarks

This method or property does not throw any exceptions, aside from execution exceptions such as System.Threading.ThreadAbortException or System.OutOfMemoryException.

Example

CSharp
VB.NET
Python

// Shows how to display all fields of the available license(s).
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-CSharp .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.

using System;
using System.Collections.Generic;
using OpcLabs.BaseLib.Collections.Specialized;
using OpcLabs.EasyOpc.UA;

namespace UADocExamples.Licensing
{
    partial class LicenseInfo
    {
        public static void AllFields()
        {
            // Instantiate the client object.
            var client = new EasyUAClient();

            // Obtain the license info.
            StringObjectDictionary licenseInfo = client.LicenseInfo;

            // Display all elements.
            foreach (KeyValuePair<string, object> pair in licenseInfo)
                Console.WriteLine($"{pair.Key}: {pair.Value}");
        }
    }
}

' Shows how to display all fields of the available license(s).
'
' Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
' OPC client and subscriber examples in VB.NET on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VBNET .
' Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
' a commercial license in order to use Online Forums, and we reply to every post.

Imports Opc.Ua
Imports OpcLabs.BaseLib.Collections.Specialized
Imports OpcLabs.EasyOpc.UA

Namespace Licensing
    Partial Friend Class LicenseInfo
        Public Shared Sub AllFields()

            ' Instantiate the client object.
            Dim client = New EasyUAClient()

            ' Obtain the license info.
            Dim licenseInfo As StringObjectDictionary = client.LicenseInfo

            ' Display all elements.
            For Each pair As KeyValuePair(Of String, Object) In licenseInfo
                Console.WriteLine($"{pair.Key}: {pair.Value}")
            Next pair
        End Sub
    End Class
End Namespace

# Shows how to display all fields of the available license(s).
#
# Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
# OPC client and subscriber examples in Python on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-Python .
# Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
# a commercial license in order to use Online Forums, and we reply to every post.
# The QuickOPC package is needed. Install it using "pip install opclabs_quickopc".
import opclabs_quickopc

# Import .NET namespaces.
from OpcLabs.EasyOpc.UA import *


# Instantiate the client object.
client = EasyUAClient()

# Obtain the license info.
licenseInfo = client.LicenseInfo

# Display all elements.
for pair in licenseInfo:
    print(pair.Key, ': ', pair.Value, sep='')

print()
print('Finished.')

CSharp
VB.NET

// Shows how to display all fields of the available license(s).
// You can use any OPC UA client, including our Connectivity Explorer and OpcCmd utility, to connect to the server. 
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client, server and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-OPCStudio-CSharp .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.

using System;
using System.Collections.Generic;
using OpcLabs.BaseLib.Collections.Specialized;
using OpcLabs.EasyOpc.UA;

namespace UAServerDocExamples.Licensing
{
    partial class LicenseInfo
    {
        public static void AllFields()
        {
            // Instantiate the server object.
            var server = new EasyUAServer();

            // Obtain the license info.
            StringObjectDictionary licenseInfo = server.LicenseInfo;

            // Display all elements.
            foreach (KeyValuePair<string, object> pair in licenseInfo)
                Console.WriteLine($"{pair.Key}: {pair.Value}");
        }
    }
}

' Shows how to display all fields of the available license(s).
' You can use any OPC UA client, including our Connectivity Explorer and OpcCmd utility, to connect to the server. 
'
' Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
' OPC client and subscriber examples in VB.NET on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VBNET .
' Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
' a commercial license in order to use Online Forums, and we reply to every post.

Imports OpcLabs.BaseLib.Collections.Specialized
Imports OpcLabs.EasyOpc.UA

Namespace Licensing
    Partial Friend Class LicenseInfo
        Shared Sub AllFields()
            ' Instantiate the server object.
            Dim server = New EasyUAServer()

            '  Obtain the license info.
            Dim licenseInfo As StringObjectDictionary = server.LicenseInfo

            ' Display all elements.
            For Each pair As KeyValuePair(Of String, Object) In licenseInfo
                Console.WriteLine($"{pair.Key}: {pair.Value}")
            Next pair
        End Sub
    End Class
End Namespace

CSharp
VB.NET
Object Pascal
PHP
Visual Basic (VB 6.0)
Python

// Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-CSharp .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.

using System;
using OpcLabs.EasyOpc.UA;

namespace UADocExamples.Licensing
{
    partial class LicenseInfo
    {
        public static void SerialNumber()
        {
            // Instantiate the client object.
            var client = new EasyUAClient();

            // Obtain the serial number from the license info.
            long serialNumber = (uint)client.LicenseInfo["Multipurpose.SerialNumber"];

            // Display the serial number.
            Console.WriteLine("SerialNumber: {0}", serialNumber);

            // Determine whether we are running as demo or trial.
            if ((1111110000 <= serialNumber) && (serialNumber <= 1111119999))
                Console.WriteLine("This is a stock demo or trial license.");
            else
                Console.WriteLine("This is not a stock demo or trial license.");
        }
    }
}

' Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.
'
' Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
' OPC client and subscriber examples in VB.NET on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VBNET .
' Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
' a commercial license in order to use Online Forums, and we reply to every post.

Imports OpcLabs.EasyOpc.UA

Namespace Licensing
    Friend Class LicenseInfo
        Public Shared Sub SerialNumber()

            ' Instantiate the client object.
            Dim client = New EasyUAClient()

            ' Obtain the serial number from the license info.
            Dim serialNumber As Long = CUInt(client.LicenseInfo("Multipurpose.SerialNumber"))

            ' Display the serial number.
            Console.WriteLine("SerialNumber: {0}", serialNumber)

            ' Determine whether we are running as demo or trial.
            If (1111110000 <= serialNumber) And (serialNumber <= 1111119999) Then
                Console.WriteLine("This is a stock demo or trial license.")
            Else
                Console.WriteLine("This is not a stock demo or trial license.")
            End If
        End Sub
    End Class
End Namespace

// Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in Object Pascal (Delphi) on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-OP .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.

class procedure LicenseInfo.SerialNumber;
var
  Client: _EasyUAClient;
  SerialNumber: Int64;
begin
  // Instantiate the client object
  Client := CoEasyUAClient.Create;

  // Obtain the serial number from the license info.
  SerialNumber := Int64(client.LicenseInfo['Multipurpose.SerialNumber']);

  // Display the serial number.
  WriteLn('SerialNumber: ', SerialNumber);

  // Determine whether we are running as demo or trial.
  if ((1111110000 <= SerialNumber) and (SerialNumber <= 1111119999)) then
    WriteLn('This is a stock demo or trial license.')
  else
    WriteLn('This is not a stock demo or trial license.');
end;

// This example shows how to obtain nodes under a given node of the OPC-UA address space. 
// Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client and subscriber examples in PHP on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-PHP .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.

// Instantiate the client object
$Client = new COM("OpcLabs.EasyOpc.UA.EasyUAClient");

// Obtain the serial number from the license info.
$SerialNumber = $Client->LicenseInfo["Multipurpose.SerialNumber"];

// Display the serial number.
printf("SerialNumber: %s\n", $SerialNumber);

// Determine whether we are running as demo or trial.
if ((1111110000 <= $SerialNumber) and ($SerialNumber <= 1111119999))
    printf("This is a stock demo or trial license.\n");
  else
    printf("This is not a stock demo or trial license.\n");

REM Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.
REM
REM Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
REM OPC client and subscriber examples in Visual Basic on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VB .
REM Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
REM a commercial license in order to use Online Forums, and we reply to every post.

Private Sub LicenseInfo_SerialNumber_Command_Click()
    OutputText = ""
        
    ' Instantiate the client object
    Dim client As New EasyUAClient

    ' Obtain the serial number from the license info.
    Dim serialNumber As Long
    serialNumber = client.LicenseInfo("Multipurpose.SerialNumber")
    
    ' Display the serial number.
    OutputText = OutputText & "Serial number: " & serialNumber & vbCrLf
    
    ' Determine whether we are running as demo or trial.
    If (1111110000 <= serialNumber) And (serialNumber <= 1111119999) Then
        OutputText = OutputText & "This is a stock demo or trial license." & vbCrLf
    Else
        OutputText = OutputText & "This is not a stock demo or trial license." & vbCrLf
    End If
End Sub

# Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.
#
# Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
# OPC client and subscriber examples in Python on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-Python .
# Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
# a commercial license in order to use Online Forums, and we reply to every post.
# The QuickOPC package is needed. Install it using "pip install opclabs_quickopc".
import opclabs_quickopc

# Import .NET namespaces.
from OpcLabs.EasyOpc.UA import *


# Instantiate the client object.
client = EasyUAClient()

# Obtain the serial number from the license info.
serialNumber = client.LicenseInfo.get_Item('Multipurpose.SerialNumber')

# Display the serial number.
print('SerialNumber: ', serialNumber, sep='')

# Determine whether we are running as demo or trial.
if (1111110000 <= serialNumber) and (serialNumber <= 1111119999):
    print('This is a stock demo or trial license.')
else:
    print('This is not a stock demo or trial license.')

print()
print('Finished.')

CSharp
VB.NET

// Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.
// You can use any OPC UA client, including our Connectivity Explorer and OpcCmd utility, to connect to the server. 
//
// Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
// OPC client, server and subscriber examples in C# on GitHub: https://github.com/OPCLabs/Examples-OPCStudio-CSharp .
// Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
// a commercial license in order to use Online Forums, and we reply to every post.

using System;
using OpcLabs.EasyOpc.UA;

namespace UAServerDocExamples.Licensing
{
    partial class LicenseInfo
    {
        public static void SerialNumber()
        {
            // Instantiate the server object.
            var server = new EasyUAServer();

            // Obtain the serial number from the license info.
            long serialNumber = (uint)server.LicenseInfo["Multipurpose.SerialNumber"];

            // Display the serial number.
            Console.WriteLine("SerialNumber: {0}", serialNumber);

            // Determine whether we are running as demo or trial.
            if ((1111110000 <= serialNumber) && (serialNumber <= 1111119999))
                Console.WriteLine("This is a stock demo or trial license.");
            else
                Console.WriteLine("This is not a stock demo or trial license.");
        }
    }
}

' Shows how to obtain the serial number of the active license, and determine whether it is a stock demo or trial license.
' You can use any OPC UA client, including our Connectivity Explorer and OpcCmd utility, to connect to the server. 
'
' Find all latest examples here: https://opclabs.doc-that.com/files/onlinedocs/OPCLabs-OpcStudio/Latest/examples.html .
' OPC client and subscriber examples in VB.NET on GitHub: https://github.com/OPCLabs/Examples-QuickOPC-VBNET .
' Missing some example? Ask us for it on our Online Forums, https://www.opclabs.com/forum/index ! You do not have to own
' a commercial license in order to use Online Forums, and we reply to every post.

Imports OpcLabs.EasyOpc.UA

Namespace Licensing
    Partial Friend Class LicenseInfo
        Shared Sub SerialNumber()
            ' Instantiate the server object.
            Dim server = New EasyUAServer()

            '  Obtain the serial number from the license info.
            Dim serialNumber As Long = CUInt(server.LicenseInfo("Multipurpose.SerialNumber"))

            ' Display the serial number.
            Console.WriteLine("SerialNumber: {0}", serialNumber)

            ' Determine whether we are running as demo or trial.
            If (1111110000 <= serialNumber) And (serialNumber <= 1111119999) Then
                Console.WriteLine("This is a stock demo or trial license.")
            Else
                Console.WriteLine("This is not a stock demo or trial license.")
            End If
        End Sub
    End Class
End Namespace

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

EasyDAClientCore Class
EasyDAClientCore Members

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