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HttpModuleCollection.AllKeys Property

Gets a string array containing all the keys (module names) in the HttpModuleCollection.

Namespace: System.Web
Assembly: System.Web (in system.web.dll)

public string[] AllKeys { get; }
/** @property */
public String[] get_AllKeys ()

public function get AllKeys () : String[]

Not applicable.

Property Value

An array of module names.

The following code 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 IHttpModule objects.

<%@ Page language="C#" %>
<%@ Import Namespace = "System.Data"  %>
<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>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>HttpModuleCollection Example</title>
</head>
<body>
</body>
</html>


<%@ Page language="VJ#" %>
<%@ Import Namespace = "System.Data"  %>
<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>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>HttpModuleCollection Example</title>
</head>
<body>
</body>
</html>

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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