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Installer.OnBeforeInstall Method

Raises the BeforeInstall event.

Namespace:  System.Configuration.Install
Assembly:  System.Configuration.Install (in System.Configuration.Install.dll)
protected virtual void OnBeforeInstall(
	IDictionary savedState
)

Parameters

savedState
Type: System.Collections.IDictionary

An IDictionary that contains the state of the computer before the installers in the Installers property are installed. This IDictionary object should be empty at this point.

This method is called before the Install methods of the installers in this instance's InstallerCollection are called.

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnBeforeInstall method allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors:

When overriding OnBeforeInstall in a derived class, be sure to call the base class's OnBeforeInstall method so that registered delegates receive the event.

The following example demonstrates the OnBeforeInstall method. This method is overridden in the derived class. Space is provided to add steps to be done before the installation in the OnBeforeInstall method.

// Override the 'OnBeforeInstall' method. 
protected override void OnBeforeInstall(IDictionary savedState)
{
   base.OnBeforeInstall(savedState);
   // Add steps to be done before the installation starts.
   Console.WriteLine("OnBeforeInstall method of MyInstaller called");
}

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.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
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