SharedProperty Class

using System;
using System.EnterpriseServices;
using System.Reflection;


[assembly: ApplicationName("ReceiptNumberGenerator")] 
[assembly: ApplicationActivation(ActivationOption.Library)] 

public class ReceiptNumberGeneratorClass
{
    // Generates a new receipt number based on the receipt number
    // stored by the Shared Property Manager (SPM)
    public int GetNextReceiptNumber() 
    {
        bool groupExists,propertyExists;
        int nextReceiptNumber = 0;
        PropertyLockMode lockMode = PropertyLockMode.SetGet;
        PropertyReleaseMode releaseMode = PropertyReleaseMode.Standard;

        // Create a shared property group manager.
        SharedPropertyGroupManager groupManager = new SharedPropertyGroupManager();
        // Create a shared property group.
        SharedPropertyGroup group = groupManager.CreatePropertyGroup("Receipts",
                                   ref lockMode, ref releaseMode, out groupExists);
        // Create a shared property.
        SharedProperty ReceiptNumber;
        ReceiptNumber = group.CreateProperty("ReceiptNumber",out propertyExists);
        // Retrieve the value from shared property, and increment the shared 
        // property value.
        nextReceiptNumber = (int) ReceiptNumber.Value;
        ReceiptNumber.Value = nextReceiptNumber + 1;
        // Return nextReceiptNumber
        return nextReceiptNumber;

    }
}

#using <mscorlib.dll>
#using <System.EnterpriseServices.dll>
using namespace System;
using namespace System::EnterpriseServices;
using namespace System::Reflection;

[assembly: AssemblyKeyFile(S"..\\..\\key.snk")]
[assembly: ApplicationName(S"ReceiptNumberGenerator")] 
[assembly: ApplicationActivation(ActivationOption::Library)];

public __gc class ReceiptNumberGeneratorClass
{
    // Generates a new receipt number based on the receipt number
    // stored by the Shared Property Manager (SPM)
public:
    int GetNextReceiptNumber() 
    {
        bool groupExists,propertyExists;
        int nextReceiptNumber = 0;
        PropertyLockMode lockMode = PropertyLockMode::SetGet;
        PropertyReleaseMode releaseMode = PropertyReleaseMode::Standard;

        // Create a shared property group manager.
        SharedPropertyGroupManager* groupManager = new SharedPropertyGroupManager();
        // Create a shared property group.
        SharedPropertyGroup* group = groupManager->CreatePropertyGroup(S"Receipts",
                                   &lockMode, &releaseMode, &groupExists);
        // Create a shared property.
        SharedProperty* ReceiptNumber;
        ReceiptNumber = group->CreateProperty(S"ReceiptNumber",&propertyExists);
        // Retrieve the value from shared property, and increment the shared 
        // property value.
        nextReceiptNumber = *dynamic_cast<int __box *>(ReceiptNumber->Value);
        ReceiptNumber->Value = __box(nextReceiptNumber + 1);
        // Return nextReceiptNumber
        return nextReceiptNumber;

    }
};