ApplicationDeployment.CurrentVersion Property (System.Deployment.Application)

.NET Framework Class Library

ApplicationDeployment..::.CurrentVersion Property

Gets the version of the deployment for the current running instance of the application.

Namespace: System.Deployment.Application
Assembly: System.Deployment (in System.Deployment.dll)

Syntax

Visual Basic (Declaration)

Public ReadOnly Property CurrentVersion As Version

Visual Basic (Usage)

Dim instance As ApplicationDeployment
Dim value As Version

value = instance.CurrentVersion

public Version CurrentVersion { get; }

Visual C++

public:
property Version^ CurrentVersion {
    Version^ get ();
}

JScript

public function get CurrentVersion () : Version

Property Value

Type: System..::.Version
The current deployment version.

Remarks

CurrentVersion will differ from UpdatedVersion if a new update has been installed but you have not yet called Restart. If the deployment manifest is configured to perform automatic updates, you can compare these two values to determine if you should restart the application.

Examples

The following code example defines a method that determines whether ClickOnce has updated the application.

Visual Basic

Private Function CheckForUpdateDue() As Boolean
    Dim isUpdateDue As Boolean = False

    If (ApplicationDeployment.IsNetworkDeployed) Then
        Dim AD As ApplicationDeployment = ApplicationDeployment.CurrentDeployment
        Dim updateInterval As TimeSpan = DateTime.Now - AD.TimeOfLastUpdateCheck
        If (updateInterval.Days > 3) Then
            isUpdateDue = True
        End If
    End If

    CheckForUpdateDue = isUpdateDue
End Function

private Boolean CheckForUpdateDue()
{
    Boolean isUpdateDue = false;

    if (ApplicationDeployment.IsNetworkDeployed)
    {
        ApplicationDeployment ad = ApplicationDeployment.CurrentDeployment;
        TimeSpan updateInterval = DateTime.Now - ad.TimeOfLastUpdateCheck;
        if (updateInterval.Days > 3)
        {
            isUpdateDue = true;
        }
    }

    return (isUpdateDue);
}

Visual C++

public:
    bool CheckForUpdateDue()
    {
        bool isUpdateDue = false;

        if (ApplicationDeployment::IsNetworkDeployed)
        {
            ApplicationDeployment^ dueAppDeployment =
                ApplicationDeployment::CurrentDeployment;
            TimeSpan^ updateInterval =
                DateTime::Now - dueAppDeployment->TimeOfLastUpdateCheck;
            if (updateInterval->Days >= 3)
            {
                isUpdateDue = true;
            }
        }

        return (isUpdateDue);
    }

.NET Framework Security

PermissionSet
For full access to the local computer. Associated enumeration: PermissionState.

Platforms

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.

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0

Reference

ApplicationDeployment Class

ApplicationDeployment Members

System.Deployment.Application Namespace

UpdatedVersion