Installer.BeforeInstall イベントとは何？わかりやすく解説 Weblio辞書

.NET Framework クラスライブラリリファレンス

索引トップ用語の索引ランキング

Installer.BeforeInstall イベント

インストーラコレクション内の各インストーラの Install メソッドが実行される前に発生します。

名前空間: System.Configuration.Install
アセンブリ: System.Configuration.Install (system.configuration.install.dll 内)
構文

Visual Basic (宣言)

Public Event BeforeInstall As
 InstallEventHandler

Visual Basic (使用法)

Dim instance As Installer
Dim handler As InstallEventHandler

AddHandler instance.BeforeInstall, handler

public event InstallEventHandler BeforeInstall

C++

public:
event InstallEventHandler^ BeforeInstall {
    void add (InstallEventHandler^ value);
    void remove (InstallEventHandler^ value);
}

/** @event */
public void add_BeforeInstall (InstallEventHandler
 value)

/** @event */
public void remove_BeforeInstall (InstallEventHandler
 value)

JScript

JScript では、イベントは使用できますが、新規に宣言することはできません。

使用例

BeforeInstall イベントの例を次に示します。これは OnBeforeInstall メソッドによって発生します。

Visual Basic

' MyInstaller is derived from the class 'Installer'.
Sub New()
   MyBase.New()
   AddHandler BeforeInstall, AddressOf BeforeInstallEventHandler
End Sub 'New

Private Sub BeforeInstallEventHandler(sender
 As Object, e As InstallEventArgs)
   ' Add steps to perform any actions before the install process.
   Console.WriteLine("Code for BeforeInstallEventHandler")
End Sub 'BeforeInstallEventHandler

// MyInstaller is derived from the class 'Installer'.
MyInstaller() : base()
{
   BeforeInstall += new InstallEventHandler(BeforeInstallEventHandler);
}
private void BeforeInstallEventHandler(object
 sender, InstallEventArgs e)
{
   // Add steps to perform any actions before the install process.
   Console.WriteLine("Code for BeforeInstallEventHandler");
 
}

C++

   // MyInstaller is derived from the class 'Installer'.
private:
   MyInstaller()
   {
      BeforeInstall += gcnew InstallEventHandler( this, &MyInstaller::BeforeInstallEventHandler
 );
   }

   void BeforeInstallEventHandler( Object^ sender, InstallEventArgs^
 e )
   {
      // Add steps to perform any actions before the install process.
      Console::WriteLine( "Code for BeforeInstallEventHandler"
 );
   }

// MyInstaller is derived from the class 'Installer'.
MyInstaller()
{
    this.add_BeforeInstall(
        new InstallEventHandler(BeforeInstallEventHandler));
} //MyInstaller

private void BeforeInstallEventHandler(Object
 sender, InstallEventArgs e)
{
    // Add steps to perform any actions before the install process.
    Console.WriteLine("Code for BeforeInstallEventHandler");
} //BeforeInstallEventHandler