.NET Framework Class Library Control..::.Init Event Occurs when the server control is initialized, which is the first step in its lifecycle. (in System.Web.dll)
Syntax
Public Event Init As EventHandler
public event EventHandler Init
public:
event EventHandler^ Init {
void add (EventHandler^ value);
void remove (EventHandler^ value);
}
member Init : IEvent<EventHandler,
EventArgs>
Remarks
Server controls should perform any initialization steps that are required to create and set up an instance. You cannot use view-state information within this event; it is not populated yet. You should not access another server control during this event, regardless of whether it is a child or parent to this control. Other server controls are not certain to be created and ready for access. For more information on server control events, see ASP.NET Web Server Control Event Model.
Examples
The following example assigns a custom event handler, Calendar_Init, to the Init event of a Calendar control.
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Calendar_Init(ByVal sender As Object, ByVal e As System.EventArgs)
' Do any related intialization work.
End Sub
</script>
<html >
<head runat="server">
<title>Control Init Event Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Calendar ID="Calendar1"
runat="server"
OnInit="Calendar_Init"/>
</div>
</form>
</body>
</html>
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Calendar_Init(object sender, EventArgs e)
{
// Do any related intialization work.
}
</script>
<html >
<head runat="server">
<title>Control Init Event Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Calendar ID="Calendar1"
runat="server"
OnInit="Calendar_Init"/>
</div>
</form>
</body>
</html>
Version Information
.NET FrameworkSupported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0
Platforms
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role not supported), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
See Also
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Biblioteca de clases de .NET Framework Control..::.Init (Evento) Tiene lugar al inicializar el control de servidor, que es el primer paso en su ciclo de vida. (en System.Web.dll)
Sintaxis
Public Event Init As EventHandler
public event EventHandler Init
public:
event EventHandler^ Init {
void add (EventHandler^ value);
void remove (EventHandler^ value);
}
member Init : IEvent<EventHandler,
EventArgs>
Comentarios
Los controles de servidor deben realizar todas las operaciones de inicialización necesarias para crear y configurar una instancia. No se puede utilizar la información sobre el estado de vista de este evento ya que aún no está lleno. No debe obtener acceso a otro control de servidor durante este evento, independientemente de que se trate de un control secundario o principal de este control. No se garantiza que puedan crearse otros controles de servidor y que estén listos para su acceso. Para obtener más información sobre eventos de control de servidor, vea Modelo de eventos de control de servidor web ASP.NET.
Ejemplos
En el siguiente ejemplo se asigna un controlador de eventos personalizado, Calendar_Init, al evento Init de un control Calendar.
<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Calendar_Init(ByVal sender As Object, ByVal e As System.EventArgs)
' Do any related intialization work.
End Sub
</script>
<html >
<head runat="server">
<title>Control Init Event Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Calendar ID="Calendar1"
runat="server"
OnInit="Calendar_Init"/>
</div>
</form>
</body>
</html>
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Calendar_Init(object sender, EventArgs e)
{
// Do any related intialization work.
}
</script>
<html >
<head runat="server">
<title>Control Init Event Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Calendar ID="Calendar1"
runat="server"
OnInit="Calendar_Init"/>
</div>
</form>
</body>
</html>
Información de versión
.NET FrameworkCompatible con: 4, 3.5, 3.0, 2.0, 1.1, 1.0
Plataformas
Windows 7, Windows Vista SP1 o posterior, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (no se admite Server Core), Windows Server 2008 R2 (se admite Server Core con SP1 o posterior), Windows Server 2003 SP2
.NET Framework no admite todas las versiones de todas las plataformas. Para obtener una lista de las versiones compatibles, vea Requisitos de sistema de .NET Framework.
Vea también
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