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İzlenecek yol: özel yükleyici ClickOnce uygulama oluşturma

.exe dosyası tabanlı herhangi bir ClickOnce uygulaması özel bir yükleyici tarafından sessizce yüklenip güncelleştirilebilir. Özel bir yükleyici, yükleme süresince güvenlik ve bakım işlemleri için özel iletişim kutularını da içeren özel bir kullanıcı deneyimi sağlayabilir. Yükleme işlemlerini gerçekleştirmek için, özel yükleyici InPlaceHostingManager sınıfını kullanır. Bu yönergeler, ClickOnce uygulamasını sessizce yükleyen özel bir yükleyiciyi nasıl oluşturacağınızı gösterir.

Özel bir ClickOnce uygulama yükleyicisi oluşturmak için

  1. ClickOnce uygulamanızda, System.Deployment'a ve System.Windows.Forms'a referanslar ekleyin.

  2. Uygulamanız için yeni bir sınıf ekleyin ve buna bir ad verin. Bu yönergelerde MyInstaller ismi kullanılacaktır.

  3. Yeni sınıfın en üstüne aşağıdaki Imports veya using deyimini ekleyin.

    Imports System.Deployment.Application
    Imports System.Windows.Forms
    
    using System.Deployment.Application;
    using System.Windows.Forms;
    
  4. Aşağıdaki yöntemleri sınıfınıza ekleyin.

    Bu yöntemler, dağıtım bildirimini indirmek için InPlaceHostingManager yöntemlerini çağırır, uygun izinleri beyan eder, kullanıcıdan yükleme izni ister ve sonra uygulamayı ClickOnce önbelleğine indirip kurar. Özel yükleyici ClickOnce uygulamasının önceden güvenilir olduğunu belirletebilir veya güven kararını AssertApplicationRequirements yöntem çağrısına bırakabilir. Bu kod, uygulamaya önceden güvenir.

    Not

    Önceden güvenme ile atanan izinler, özel yükleyici kodunun izinlerini aşamaz.

        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
    
    InPlaceHostingManager iphm = null;
    
    public void InstallApplication(string deployManifestUriStr)
    {
        try
        {
            Uri deploymentUri = new Uri(deployManifestUriStr);
            iphm = new InPlaceHostingManager(deploymentUri, false);
        }
        catch (UriFormatException uriEx)
        {
            MessageBox.Show("Cannot install the application: " + 
                "The deployment manifest URL supplied is not a valid URL. " +
                "Error: " + uriEx.Message);
            return;
        }
        catch (PlatformNotSupportedException platformEx)
        {
            MessageBox.Show("Cannot install the application: " + 
                "This program requires Windows XP or higher. " +
                "Error: " + platformEx.Message);
            return;
        }
        catch (ArgumentException argumentEx)
        {
            MessageBox.Show("Cannot install the application: " + 
                "The deployment manifest URL supplied is not a valid URL. " +
                "Error: " + argumentEx.Message);
            return;
        }
    
        iphm.GetManifestCompleted += new EventHandler<GetManifestCompletedEventArgs>(iphm_GetManifestCompleted);
        iphm.GetManifestAsync();
    }
    
    void iphm_GetManifestCompleted(object sender, GetManifestCompletedEventArgs e)
    {
        // Check for an error.
        if (e.Error != null)
        {
            // Cancel download and install.
            MessageBox.Show("Could not download manifest. Error: " + e.Error.Message);
            return;
        }
    
        // bool isFullTrust = CheckForFullTrust(e.ApplicationManifest);
    
        // Verify this application can be installed.
        try
        {
            // the true parameter allows InPlaceHostingManager
            // to grant the permissions requested in the applicaiton manifest.
            iphm.AssertApplicationRequirements(true) ; 
        }
        catch (Exception ex)
        {
            MessageBox.Show("An error occurred while verifying the application. " +
                "Error: " + ex.Message);
            return;
        }
    
        // Use the information from GetManifestCompleted() to confirm 
        // that the user wants to proceed.
        string appInfo = "Application Name: " + e.ProductName;
        appInfo += "\nVersion: " + e.Version;
        appInfo += "\nSupport/Help Requests: " + (e.SupportUri != null ?
            e.SupportUri.ToString() : "N/A");
        appInfo += "\n\nConfirmed that this application can run with its requested permissions.";
        // if (isFullTrust)
        // appInfo += "\n\nThis application requires full trust in order to run.";
        appInfo += "\n\nProceed with installation?";
    
        DialogResult dr = MessageBox.Show(appInfo, "Confirm Application Install",
            MessageBoxButtons.OKCancel, MessageBoxIcon.Question);
        if (dr != System.Windows.Forms.DialogResult.OK)
        {
            return;
        }
    
        // Download the deployment manifest. 
        iphm.DownloadProgressChanged += new EventHandler<DownloadProgressChangedEventArgs>(iphm_DownloadProgressChanged);
        iphm.DownloadApplicationCompleted += new EventHandler<DownloadApplicationCompletedEventArgs>(iphm_DownloadApplicationCompleted);
    
        try
        {
            // Usually this shouldn't throw an exception unless AssertApplicationRequirements() failed, 
            // or you did not call that method before calling this one.
            iphm.DownloadApplicationAsync();
        }
        catch (Exception downloadEx)
        {
            MessageBox.Show("Cannot initiate download of application. Error: " +
                downloadEx.Message);
            return;
        }
    }
    
    /*
    private bool CheckForFullTrust(XmlReader appManifest)
    {
        if (appManifest == null)
        {
            throw (new ArgumentNullException("appManifest cannot be null."));
        }
    
        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 != null)
            if (xaUnrestricted.Value == "true")
                return true;
    
        return false;
    }
    */
    
    void iphm_DownloadApplicationCompleted(object sender, DownloadApplicationCompletedEventArgs e)
    {
        // Check for an error.
        if (e.Error != null)
        {
            // Cancel download and install.
            MessageBox.Show("Could not download and install application. Error: " + e.Error.Message);
            return;
        }
    
        // Inform the user that their application is ready for use. 
        MessageBox.Show("Application installed! You may now run it from the Start menu.");
    }
    
    void iphm_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
    {
        // you can show percentage of task completed using e.ProgressPercentage
    }
    
  5. Kodunuzdan yükleme yapmak için, InstallApplication yöntemini çağırın. Örneğin, sınıfınızı MyInstaller olarak adlandırırsanız, InstallApplication'ı aşağıdaki şekilde çağırabilirsiniz.

    Dim installer As New MyInstaller()
    installer.InstallApplication("\\myServer\myShare\myApp.application")
    MessageBox.Show("Installer object created.")
    
    MyInstaller installer = new MyInstaller();
    installer.InstallApplication(@"\\myServer\myShare\myApp.application");
    MessageBox.Show("Installer object created.");
    

Sonraki Adımlar

Bir ClickOnce uygulaması, güncelleştirme sırasında gösterilmek üzere özel bir arayüzü de içeren özel güncelleştirme mantığı da oluşturabilir. Daha fazla bilgi için bkz. UpdateCheckInfo. Ayrıca ClickOnce uygulaması, <customUX> öğesini kullanarak standart Başlat menüsü girdisi ve Program Ekle veya Kaldır girdisinin oluşturulmasını engelleyebilir. Daha fazla bilgi için, bkz:<entryPoint> Öğesi (ClickOnce Uygulaması) ve ShortcutAppId.

Ayrıca bkz.

Başvuru

ClickOnce Uygulama Bildirimi

<entryPoint> Öğesi (ClickOnce Uygulaması)