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SharedProperty Class
Visual Studio 2008
Accesses a shared property. This class cannot be inherited.
Assembly: System.EnterpriseServices (in System.EnterpriseServices.dll)
The following code example shows how to create a shared property and set and retrieve the value stored in the shared property.
Imports System Imports System.EnterpriseServices Imports 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 Function GetNextReceiptNumber() As Integer Dim groupExists, propertyExists As Boolean Dim nextReceiptNumber As Integer = 0 Dim lockMode As PropertyLockMode = PropertyLockMode.SetGet Dim releaseMode As PropertyReleaseMode = PropertyReleaseMode.Standard ' Create a shared property group manager. Dim groupManager As New SharedPropertyGroupManager() ' Create a shared property group. Dim group As SharedPropertyGroup = groupManager.CreatePropertyGroup("Receipts", lockMode, releaseMode, groupExists) ' Create a shared property. Dim ReceiptNumber As SharedProperty ReceiptNumber = group.CreateProperty("ReceiptNumber", propertyExists) ' Retrieve the value from shared property, and increment the shared ' property value. nextReceiptNumber = Fix(ReceiptNumber.Value) ReceiptNumber.Value = nextReceiptNumber + 1 ' Return nextReceiptNumber Return nextReceiptNumber End Function 'GetNextReceiptNumber End Class 'ReceiptNumberGeneratorClass
#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;
}
};
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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