QuickOPC User's Guide and Reference
LicenseInfo Property (EasyAEClient)
Example 



View with Navigation Tools
OpcLabs.EasyOpcClassic Assembly > OpcLabs.EasyOpc.AlarmsAndEvents Namespace > EasyAEClient Class : LicenseInfo Property
Provides dictionary of license data fields and their values.
Syntax
'Declaration
 
Public ReadOnly Property LicenseInfo As StringObjectDictionary
 
'Usage
 
Dim instance As EasyAEClient
Dim value As StringObjectDictionary
 
value = instance.LicenseInfo
Example
// Shows how to display all fields of the available license(s).

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 obtain the serial number of the active license, and determine whether it is a stock demo or trial license.

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.");
        }
    }
}
Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2012 R2, Windows Server 2016; .NET: Linux, macOS, Microsoft Windows

See Also