TransactedInstaller Class
Defines an installer that either succeeds completely or fails and leaves the computer in its initial state.
Assembly: System.Configuration.Install (in System.Configuration.Install.dll)
To run installers in a transaction, add them to the Installers property of this TransactedInstaller instance.
The following example demonstrates the TransactedInstaller, Install and Uninstall methods of the TransactedInstaller class.
This example provides an implementation similar to that of Installer Tool (Installutil.exe). It installs assemblies with the options preceding that particular assembly. If an option is not specified for an assembly, the previous assembly's options are used if there is a previous assembly in the list. If either the "/u" or "/uninstall" option is specified, the assemblies are uninstalled. If the "/?" or "/help" option is provided, the help information is displayed to the console.
Dim options As New ArrayList() Dim myOption As String Dim toUnInstall As Boolean = False Dim toPrintHelp As Boolean = False Dim myTransactedInstaller As New TransactedInstaller() Dim myAssemblyInstaller As AssemblyInstaller Dim myInstallContext As InstallContext Try Dim i As Integer For i = 1 To args.Length - 1 ' Process the arguments. If args(i).StartsWith("/") Or args(i).StartsWith("-") Then myOption = args(i).Substring(1) ' Determine whether the option is to 'uninstall' an assembly. If String.Compare(myOption, "u", True) = 0 Or _ String.Compare(myOption,"uninstall", True) = 0 Then toUnInstall = True GoTo ContinueFor1 End If ' Determine whether the option is for printing help information. If String.Compare(myOption, "?", True) = 0 Or _ String.Compare(myOption, "help", True) = 0 Then toPrintHelp = True GoTo ContinueFor1 End If ' Add the option encountered to the list of all options ' encountered for the current assembly. options.Add(myOption) Else ' Determine whether the assembly file exists. If Not File.Exists(args(i)) Then ' If assembly file doesn't exist then print error. Console.WriteLine(ControlChars.Newline + _ "Error : {0} - Assembly file doesn't exist.", args(i)) Return End If ' Create a instance of 'AssemblyInstaller' that installs the given assembly. myAssemblyInstaller = New AssemblyInstaller(args(i), _ CType(options.ToArray(GetType(String)), String())) ' Add the instance of 'AssemblyInstaller' to the 'TransactedInstaller'. myTransactedInstaller.Installers.Add(myAssemblyInstaller) End If ContinueFor1: Next i ' If user requested help or didn't provide any assemblies to install ' then print help message. If toPrintHelp Or myTransactedInstaller.Installers.Count = 0 Then PrintHelpMessage() Return End If ' Create a instance of 'InstallContext' with the options specified. myInstallContext = New InstallContext("Install.log", _ CType(options.ToArray(GetType(String)), String())) myTransactedInstaller.Context = myInstallContext ' Install or Uninstall an assembly depending on the option provided. If Not toUnInstall Then myTransactedInstaller.Install(New Hashtable()) Else myTransactedInstaller.Uninstall(Nothing) End If Catch e As Exception Console.WriteLine(ControlChars.Newline + "Exception raised : {0}", e.Message) End Try
System.MarshalByRefObject
System.ComponentModel.Component
System.Configuration.Install.Installer
System.Configuration.Install.TransactedInstaller
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.