InPlaceHostingManager 類別

定義

在電腦上安裝或更新 ClickOnce 部署。Install or update a ClickOnce deployment on a computer.

public ref class InPlaceHostingManager : IDisposable
public class InPlaceHostingManager : IDisposable
type InPlaceHostingManager = class
    interface IDisposable
Public Class InPlaceHostingManager
Implements IDisposable
繼承
InPlaceHostingManager
實作

範例

下列程式碼範例示範如何使用InPlaceHostingManager ,以ClickOnceClickOnce程式設計方式在用戶端電腦上安裝應用程式。The following code example shows how to use InPlaceHostingManager to install a ClickOnceClickOnce application programmatically on a client computer.

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
}
    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

備註

您可以使用InPlaceHostingManager撰寫程式,以程式ClickOnceClickOnce設計方式安裝應用程式。You can use InPlaceHostingManager to write programs that install ClickOnceClickOnce applications programmatically. 例如,您可以在受控制的系統管理軟體(SMS)環境中,或在您需要在本機電腦上執行數個預先安裝或後續安裝作業的複雜安裝中使用這個類別。For example, you can use this class in a controlled system management software (SMS) environment or in situations where you need a complex installation that performs a number of pre-installation or post-installation operations on the local computer. 一般來說,您會想要依特定順序使用此類別的成員:Generally, you will want to use the members of this class in a specific order:

  1. 建立 InPlaceHostingManager 的新執行個體。Create a new instance of InPlaceHostingManager.

  2. 使用GetManifestAsync下載部署資訊清單。Download the deployment manifest by using GetManifestAsync.

  3. 檢查是否可以使用AssertApplicationRequirements適當的許可權來執行應用程式。Check that the application can be run with the appropriate permissions by using AssertApplicationRequirements.

  4. 使用DownloadApplicationAsync下載並安裝應用程式。Download and install the application by using DownloadApplicationAsync.

  • 如果您不按照順序呼叫其中任何參數,它們會擲回例外狀況。If you call any of these parameters out of order, they will throw an exception.

InPlaceHostingManager可以安裝ClickOnceClickOnce應用程式,但無法執行它。InPlaceHostingManager can install a ClickOnceClickOnce application, but cannot execute it. 此類別中的某些方法(例如Execute)會保留在下載在網頁瀏覽器中執行的 Windows Presentation Foundation 型應用程式時使用。Some methods in this class, such as Execute, are reserved for use when downloading a Windows Presentation Foundation-based application that runs inside a Web browser.

若要InPlaceHostingManager使用下載和安裝應用程式,您必須確定要安裝的ClickOnceClickOnce應用程式簽署憑證已安裝在用戶端電腦上做為信任的發行者。To use InPlaceHostingManager to download and install applications, you must make sure that the certificate for signing the ClickOnceClickOnce applications you plan to install is already installed on client computers as a trusted publisher. 如需信任的發行者的詳細資訊,請參閱信任的應用程式部署總覽For more information on trusted publishers, see Trusted Application Deployment Overview.

注意

目前有一項產品限制,可InPlaceHostingManager防止您在使用 Visual Studio 來對程式碼進行偵錯工具時,無法正確運作。There is currently a product limitation that prevents InPlaceHostingManager from working correctly when you debug your code using Visual Studio. 如果您使用 F5 鍵在 Visual Studio 中進行應用程式的「偵測」,則當您呼叫DownloadApplicationAsync時,此範例會擲回神秘的例外狀況。If you debug your application in Visual Studio by using the F5 key, the sample will throw mysterious exceptions when you call DownloadApplicationAsync. 若要使用 Visual Studio 進行調試,請啟動應用程式而不進行偵測,然後附加偵錯工具。To debug using Visual Studio, start the application without debugging, and then attach the debugger. 或者,您可以使用另一個偵錯工具,例如 WinDbg。Alternatively, you can use another debugger, such as WinDbg.

建構函式

InPlaceHostingManager(Uri)

建立 InPlaceHostingManager 的新執行個體,以下載及安裝指定的瀏覽器架構應用程式。Creates a new instance of InPlaceHostingManager to download and install the specified browser-hosted application.

InPlaceHostingManager(Uri, Boolean)

建立 InPlaceHostingManager 的新執行個體,以下載及安裝指定的應用程式;這個應用程式可以是獨立的 Windows Form 架構應用程式或是裝載在 Web 瀏覽器中的應用程式。Creates a new instance of InPlaceHostingManager to download and install the specified application, which can be either a stand-alone Windows Forms-based application or an application hosted in a Web browser.

方法

AssertApplicationRequirements()

判斷 ClickOnceClickOnce 應用程式是否有適當的使用權限和平台相依性,得以在本機電腦上執行。Determines whether the ClickOnceClickOnce application has the appropriate permissions and platform dependencies to run on the local computer.

AssertApplicationRequirements(Boolean)

判斷 ClickOnceClickOnce 應用程式是否有適當的使用權限和平台相依性,得以在本機電腦上執行。Determines whether the ClickOnceClickOnce application has the appropriate permissions and platform dependencies to run on the local computer.

CancelAsync()

取消非同步下載作業。Cancels an asynchronous download operation.

Dispose()

釋放 InPlaceHostingManager 所使用的所有資源。Releases all resources used by the InPlaceHostingManager.

DownloadApplicationAsync()

在背景中下載應用程式更新。Downloads an application update in the background.

Equals(Object)

判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object.

(繼承來源 Object)
Execute()

啟動 ClickOnceClickOnce 應用程式,但僅限此應用程式是正在 Web 瀏覽器中執行之 Windows Presentation Foundation 架構應用程式的情況。Launches the ClickOnceClickOnce application, if and only if it is a Windows Presentation Foundation-based application running in a Web browser.

GetHashCode()

作為預設雜湊函數。Serves as the default hash function.

(繼承來源 Object)
GetManifestAsync()

在幕後下載 ClickOnceClickOnce 應用程式的部署資訊清單,並在作業完成或發生錯誤時引發事件。Downloads the deployment manifest of the ClickOnceClickOnce application in the background, and raises an event when the operation has either completed or encountered an error.

GetType()

取得目前執行個體的 TypeGets the Type of the current instance.

(繼承來源 Object)
MemberwiseClone()

建立目前 Object 的淺層複製。Creates a shallow copy of the current Object.

(繼承來源 Object)
ToString()

傳回代表目前物件的字串。Returns a string that represents the current object.

(繼承來源 Object)
UninstallCustomAddIn(String)

移除先前所安裝之應用程式的使用者定義元件。Removes a previously installed user-defined component of an application.

UninstallCustomUXApplication(String)

移除包含 <customUX> 項目的 ClickOnceClickOnce 應用程式。Removes a ClickOnceClickOnce application that includes the <customUX> element.

事件

DownloadApplicationCompleted

在應用程式已完成下載至本機電腦時發生。Occurs when the application has finished downloading to the local computer.

DownloadProgressChanged

在應用程式或資訊清單下載狀態變更時發生。Occurs when there is a change in the status of an application or manifest download.

GetManifestCompleted

在部署資訊清單已下載至本機電腦時發生。Occurs when the deployment manifest has been downloaded to the local computer.

適用於