HttpModuleCollection-Klasse
Stellt ein Verfahren bereit, mit dem eine Auflistung von IHttpModule-Objekten indiziert und abgerufen wird.
Namespace: System.Web
Assembly: System.Web (in system.web.dll)
Syntax
'Declaration
Public NotInheritable Class HttpModuleCollection
Inherits NameObjectCollectionBase
'Usage
Dim instance As HttpModuleCollection
public sealed class HttpModuleCollection : NameObjectCollectionBase
public ref class HttpModuleCollection sealed : public NameObjectCollectionBase
public final class HttpModuleCollection extends NameObjectCollectionBase
public final class HttpModuleCollection extends NameObjectCollectionBase
Beispiel
Im folgenden Codebeispiel wird die AllKeys-Eigenschaft sowie die GetKey-Methode und die CopyTo-Methode der HttpModuleCollection-Klasse veranschaulicht. Das Beispiel ruft das Anwendungsobjekt für die aktuelle Anforderung aus dem aktuellen HttpContext-Objekt ab. Anschließend wird das HttpModuleCollection-Objekt aus der Anwendungsinstanz extrahiert, und die Namen der IHttpModule-Objekte werden angezeigt.
<%@ Page language="VB" %>
<%@ Import Namespace = "System.Data" %>
<HTML>
<HEAD>
<script runat="server">
' System.Web.HttpModuleCollection.AllKeys;GetKey;CopyTo
Sub Page_Load(Sender As Object, e As EventArgs )
' Get the HttpContext object for the current request.
Dim i As Integer
Dim myHttpContext As HttpContext = HttpContext.Current
' Get the application object for the current request.
Dim myHttpApplication As HttpApplication = myHttpContext.ApplicationInstance
' Get the collection of all HTTPModule objects for the current application.
Dim myHttpModuleCollection As HttpModuleCollection = myHttpApplication.Modules
' Get the name of the HttpModule object at index 1.
Dim httpModuleName As string = myHttpModuleCollection.GetKey(1)
Response.Write("The name of the HttpModule object at index 1" + " is " +"'"+ httpModuleName+"'." + "<br><br>")
Dim allModules() As string = myHttpModuleCollection.AllKeys
' Display the names of all HttpModule objects.
Response.Write("<b>The HttpModule objects of HttpModuleCollection are:</b><br>")
For i = 0 To allModules.Length -1
Response.Write("Module" + i.ToString() + " : " + allModules(i).ToString() + "<br>")
Next i
' Copy the HttpModule objects in the collection into an array.
Dim httpModuleArray As System.Array = Array.CreateInstance(GetType(object),myHttpModuleCollection.AllKeys.Length)
myHttpModuleCollection.CopyTo(httpModuleArray,0)
Response.Write("<br><br><b>Successfully copied the HttpModule objects in the HttpModuleCollection to an array."+ "<br>Displaying the HttpModule objects in the array:</b><br>")
For i=0 To httpModuleArray.Length -1
Response.Write("Module" + i.ToString() + ": " + httpModuleArray.GetValue(i).ToString() + "<br>")
Next i
End Sub
</script>
</HEAD>
</HTML>
<%@ Page language="C#" %>
<%@ Import Namespace = "System.Data" %>
<HTML>
<HEAD>
<script runat="server">
// System.Web.HttpModuleCollection.AllKeys;GetKey;CopyTo
void Page_Load(object sender, System.EventArgs e)
{
// Get the HttpContext object for the current request.
HttpContext myHttpContext = HttpContext.Current;
// Get the application object for the current request.
HttpApplication myHttpApplication = myHttpContext.ApplicationInstance;
// Get the collection of all HTTPModule objects for the current application.
HttpModuleCollection myHttpModuleCollection = myHttpApplication.Modules;
// Get the name of the HttpModule object at index 1.
string httpModuleName = myHttpModuleCollection.GetKey(1);
Response.Write("The name of the HttpModule object at index 1" + " is " +"'"+ httpModuleName+"'." + "<br><br>");
string[] allModules = myHttpModuleCollection.AllKeys;
// Display the names of all HttpModule objects.
Response.Write("<b>The HttpModule objects contained in the HttpModuleCollection are:</b><br>");
for(int i=0; i < allModules.Length; i++)
Response.Write("Module" + i + " : " + allModules[i] + "<br>");
// Copy the HttpModule objects in the collection into an array.
System.Array httpModuleArray = Array.CreateInstance(typeof(object),myHttpModuleCollection.AllKeys.Length);
myHttpModuleCollection.CopyTo(httpModuleArray,0);
Response.Write("<br><br><b>Successfully copied the HttpModule objects in the HttpModuleCollection to an array."+
"<br>Displaying the HttpModule objects in array:</b><br>");
for(int i=0; i < httpModuleArray.Length; i++)
Response.Write("Module" + i + ": " + httpModuleArray.GetValue(i) + "<br>");
}
</script>
</HEAD>
</HTML>
<%@ Page language="VJ#" %>
<%@ Import Namespace = "System.Data" %>
<HTML>
<HEAD>
<script runat="server">
// System.Web.HttpModuleCollection.AllKeys;GetKey;CopyTo
void Page_Load(Object sender, System.EventArgs e)
{
// The following example demonstrates the AllKeys property and the GetKey and
// CopyTo methods of the HttpModuleCollection class. The example gets the
// application object for the current request from the current HttpContext
// object. It then extracts the HttpModuleCollection object from the
// application instance and displays the names of the HttpModule objects.
// Get the HttpContext object for the current request.
HttpContext myHttpContext = HttpContext.get_Current();
// Get the application object for the current request.
HttpApplication myHttpApplication = myHttpContext.get_ApplicationInstance();
// Get the collection of all HTTPModule objects for the current application.
HttpModuleCollection myHttpModuleCollection =
myHttpApplication.get_Modules();
// Get the name of the HttpModule object at index 1.
String httpModuleName = myHttpModuleCollection.GetKey(1);
get_Response().Write("The name of the HttpModule object at index 1"
+ " is " +"'"+ httpModuleName+"'." + "<br><br>");
String allModules[] = myHttpModuleCollection.get_AllKeys();
// Display the names of all HttpModule objects.
get_Response().Write("<b>The HttpModule objects contained in the "
+ "HttpModuleCollection are:</b><br>");
for(int i=0; i < allModules.get_Length(); i++) {
get_Response().Write("Module" + i + " : "
+ allModules[i] + "<br>");
}
// Copy the HttpModule objects in the collection into an array.
System.Array httpModuleArray = Array.CreateInstance(Object.class.ToType(),
myHttpModuleCollection.get_AllKeys().get_Length());
myHttpModuleCollection.CopyTo(httpModuleArray,0);
get_Response().Write("<br><br><b>Successfully copied the HttpModule "
+ "objects in the HttpModuleCollection to an array."
+ "<br>Displaying the HttpModule objects in array:</b><br>");
for(int i=0; i < httpModuleArray.get_Length(); i++) {
get_Response().Write("Module" + i + ": " + httpModuleArray.GetValue(i)
+ "<br>");
}
} // Page_Load
</script>
</HEAD>
</HTML>
.NET Framework-Sicherheit
- AspNetHostingPermission für den Betrieb in einer Hostumgebung. Forderungswert: LinkDemand, Berechtigungswert: Minimal
Vererbungshierarchie
System.Object
System.Collections.Specialized.NameObjectCollectionBase
System.Web.HttpModuleCollection
Threadsicherheit
Alle öffentlichen statischen (Shared in Visual Basic) Member dieses Typs sind threadsicher. Bei Instanzmembern ist die Threadsicherheit nicht gewährleistet.
Plattformen
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.
Versionsinformationen
.NET Framework
Unterstützt in: 2.0, 1.1, 1.0