GetManifestCompletedEventArgs Class

 

Provides data for the GetManifestCompleted event of InPlaceHostingManager.

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

System.Object
  System.EventArgs
    System.ComponentModel.AsyncCompletedEventArgs
      System.Deployment.Application.GetManifestCompletedEventArgs

Public Class GetManifestCompletedEventArgs
	Inherits AsyncCompletedEventArgs

NameDescription
System_CAPS_pubpropertyActivationContext

Gets the context for the current ClickOnce application.

System_CAPS_pubpropertyApplicationIdentity

Gets a description of the ClickOnce application.

System_CAPS_pubpropertyApplicationManifest

Gets the ClickOnce application manifest for this deployment.

System_CAPS_pubpropertyCancelled

Gets a value indicating whether an asynchronous operation has been canceled.(Inherited from AsyncCompletedEventArgs.)

System_CAPS_pubpropertyDeploymentManifest

Gets the ClickOnce deployment manifest for this deployment.

System_CAPS_pubpropertyError

Gets a value indicating which error occurred during an asynchronous operation.(Inherited from AsyncCompletedEventArgs.)

System_CAPS_pubpropertyIsCached

Gets a value indicating whether this ClickOnce application is cached.

System_CAPS_pubpropertyLogFilePath

Gets the location of the ClickOnce error log.

System_CAPS_pubpropertyProductName

Gets the name of the ClickOnce application.

System_CAPS_pubpropertySubscriptionIdentity

Gets a string identifying the subscription.

System_CAPS_pubpropertySupportUri

Gets the location of a Web page users can visit to obtain product support for the ClickOnce application.

System_CAPS_pubpropertyUserState

Gets the unique identifier for the asynchronous task.(Inherited from AsyncCompletedEventArgs.)

System_CAPS_pubpropertyVersion

Gets the version of the update for the ClickOnce application.

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_protmethodRaiseExceptionIfNecessary()

Raises a user-supplied exception if an asynchronous operation failed.(Inherited from AsyncCompletedEventArgs.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

Use GetManifestCompletedEventArgs to obtain information about a ClickOnce application after the deployment and application manifests have been downloaded.

The following code example shows how to use InPlaceHostingManager to install a ClickOnce application programmatically on a client machine.

    Dim WithEvents iphm As InPlaceHostingManager = Nothing

    Public Sub InstallApplication(ByVal deployManifestUriStr As String)
        Try
            Dim deploymentUri As New Uri(deployManifestUriStr)
            iphm = New InPlaceHostingManager(deploymentUri, False)
            MessageBox.Show("Created the object.")
        Catch uriEx As UriFormatException
            MessageBox.Show("Cannot install the application: " & _
                            "The deployment manifest URL supplied is not a valid URL." & _
                            "Error: " & uriEx.Message)
            Return
        Catch platformEx As PlatformNotSupportedException
            MessageBox.Show("Cannot install the application: " & _
                            "This program requires Windows XP or higher. " & _
                            "Error: " & platformEx.Message)
            Return
        Catch argumentEx As ArgumentException
            MessageBox.Show("Cannot install the application: " & _
                            "The deployment manifest URL supplied is not a valid URL." & _
                            "Error: " & argumentEx.Message)
            Return
        End Try

        iphm.GetManifestAsync()
    End Sub

    Private Sub iphm_GetManifestCompleted(ByVal sender As Object, ByVal e As GetManifestCompletedEventArgs) Handles iphm.GetManifestCompleted
        ' Check for an error.
        If (e.Error IsNot Nothing) Then
            ' Cancel download and install.
            MessageBox.Show("Could not download manifest. Error: " & e.Error.Message)
            Return
        End If

        ' Dim isFullTrust As Boolean = CheckForFullTrust(e.ApplicationManifest)

        ' Verify this application can be installed.
        Try
            ' the true parameter allows InPlaceHostingManager
            ' to grant the permissions requested in the application manifest. 
            iphm.AssertApplicationRequirements(True)
        Catch ex As Exception
            MessageBox.Show("An error occurred while verifying the application. " & _
                            "Error text: " & ex.Message)
            Return
        End Try

        ' Use the information from GetManifestCompleted() to confirm 
        ' that the user wants to proceed.
        Dim appInfo As String = "Application Name: " & e.ProductName
        appInfo &= ControlChars.Lf & "Version: " & e.Version.ToString()
        appInfo &= ControlChars.Lf & "Support/Help Requests: "

        If Not (e.SupportUri Is Nothing) Then
            appInfo &= e.SupportUri.ToString()
        Else
            appInfo &= "N/A"
        End If

        appInfo &= ControlChars.Lf & ControlChars.Lf & _
            "Confirmed that this application can run with its requested permissions."

        ' If isFullTrust Then
        '    appInfo &= ControlChars.Lf & ControlChars.Lf & _
        '        "This application requires full trust in order to run."
        ' End If

        appInfo &= ControlChars.Lf & ControlChars.Lf & "Proceed with installation?"

        Dim dr As DialogResult = MessageBox.Show(appInfo, _
            "Confirm Application Install", MessageBoxButtons.OKCancel, MessageBoxIcon.Question)
        If dr <> System.Windows.Forms.DialogResult.OK Then
            Return
        End If

        ' Download the deployment manifest. 
        ' Usually, this shouldn't throw an exception unless 
        ' AssertApplicationRequirements() failed, or you did not call that method
        ' before calling this one.
        Try
            iphm.DownloadApplicationAsync()
        Catch downloadEx As Exception
            MessageBox.Show("Cannot initiate download of application. Error: " & downloadEx.Message)
            Return
        End Try
    End Sub

#If 0 Then
    Private Function CheckForFullTrust(ByVal appManifest As XmlReader) As Boolean
        Dim isFullTrust As Boolean = False

        If (appManifest Is Nothing) Then
            Throw New ArgumentNullException("appManifest cannot be null.")
        End If

        Dim xaUnrestricted As XAttribute
        xaUnrestricted = XDocument.Load(appManifest) _
            .Element("{urn:schemas-microsoft-com:asm.v1}assembly") _
            .Element("{urn:schemas-microsoft-com:asm.v2}trustInfo") _
            .Element("{urn:schemas-microsoft-com:asm.v2}security") _
            .Element("{urn:schemas-microsoft-com:asm.v2}applicationRequestMinimum") _
            .Element("{urn:schemas-microsoft-com:asm.v2}PermissionSet") _
            .Attribute("Unrestricted")  ' Attributes never have a namespace


        If xaUnrestricted Then
            If xaUnrestricted.Value = "true" Then
                Return True
            End If
        End If

        Return False
    End Function
#End If

    Private Sub iphm_DownloadProgressChanged(ByVal sender As Object, ByVal e As DownloadProgressChangedEventArgs) Handles iphm.DownloadProgressChanged
        ' you can show percentage of task completed using e.ProgressPercentage
    End Sub

    Private Sub iphm_DownloadApplicationCompleted(ByVal sender As Object, ByVal e As DownloadApplicationCompletedEventArgs) Handles iphm.DownloadApplicationCompleted
        ' Check for an error.
        If (e.Error IsNot Nothing) Then
            ' Cancel download and install.
            MessageBox.Show("Could not download and install application. Error: " & e.Error.Message)
            Return
        End If

        ' Inform the user that their application is ready for use. 
        MessageBox.Show("Application installed! You may now run it from the Start menu.")
    End Sub

.NET Framework
Available since 2.0

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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