Wskazówki: tworzenie niestandardowego Instalatora dla aplikacji ClickOnce
Każda aplikacja ClickOnce oparty na pliku .exe można po cichu zainstalowany i zaktualizowane przez instalatora niestandardowego.Instalatora niestandardowego można implementować niestandardowe użytkownika podczas instalacji, w tym niestandardowe okna dialogowe dla zabezpieczeń i konserwacyjnych.Aby wykonywać operacje instalacji, używa Instalatora niestandardowego InPlaceHostingManager klasy.W tym instruktażu przedstawiono sposób tworzenia niestandardowego Instalatora, który po cichu instaluje aplikację ClickOnce.
Aby utworzyć niestandardowe Instalatora aplikacji ClickOnce
W aplikacji ClickOnce dodać odwołania do System.Deployment i System.Windows.Forms.
Nową klasę można dodać do aplikacji i określ dowolną nazwę.W tym instruktażu używa nazwy MyInstaller.
Dodaje się Imports lub using instrukcji, aby u góry nowej klasy.
Imports System.Deployment.Application Imports System.Windows.Formsusing System.Deployment.Application; using System.Windows.Forms;Dodaj następujące metody do swojej klasy.
Wywołania tych metod InPlaceHostingManager metody pobierania manifestu wdrażania assert odpowiednie uprawnienia, poproś użytkownika dla uprawnienia, aby zainstalować, a następnie pobrać i zainstalować aplikację do pamięci podręcznej ClickOnce.Instalatora niestandardowego można określić aplikację ClickOnce jest pre-trusted lub można odłożyć decyzję zaufania do AssertApplicationRequirements wywołanie metody.Ten kod pre-trusts aplikacji.
[!UWAGA]
Uprawnienia przypisane przez pre-trusting nie może przekraczać uprawnienia kodu niestandardowego Instalatora.
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 SubInPlaceHostingManager 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 }Próba instalacji z kodu, wywołanie InstallApplication metody.Na przykład o nazwie klasy MyInstaller, może wywołać InstallApplication w następujący sposób.
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.");
Następne kroki
Aplikacja ClickOnce można również dodać logikę niestandardowych aktualizacji, włączając niestandardowy interfejs użytkownika do pokazywania podczas procesu aktualizacji.Aby uzyskać więcej informacji, zobacz UpdateCheckInfo.Aplikacji ClickOnce można również pominąć standardową pozycję menu Start, skrótów i wpis Dodaj lub usuń programy, używając <customUX> element.Aby uzyskać więcej informacji, zobacz <entryPoint> — Element (Aplikacja ClickOnce) i ShortcutAppId.