HTTPModule Only Getting Called Once Per Page?
Aug 15, 2010
I am trying to implement a custom HTTPModule for ASP.NET. I have a very simple html page with an image in it and an HTTPModule that hooks into the BeginRequest event. When I debug with Visual Studio's dev web server, my module is called twice: one for the initial page request, then once for the image request. This is what I expected. However, when I deploy my application to IIS, the module is only being called once for the page request.
View 2 Replies
Similar Messages:
Jul 30, 2010
Web application initialization is as follows:
As we know when IIS receives the first request for a particular Asp.net application resource, IIS creates an instance of a HttpApplication (defined in global.asax codebehind).When this new instance is created it's initialization happens that also checks all configured HTTP modules.All modules are then instantiated and put in the application's Modules collection (of type HttpModuleCollection)modules are looped through and their Init() method is called (when they register for request events)
As far as I understand it the above scenario happens when a web application is started/initialized (hence application start event).What happens with modules?
Are they (re)instatiated on each request or reused from the Modules property on each consecutive request while the web application is alive? As I understand IIS and Asp.net they are reused through the whole life of a web application.
If they are reused, can we assume that their Init() method is actually a pseudo event handler for application start event? The thing is we can't attach to application level events within http modules. But if they are being reused we could use Init() as application start event and do whatever we'd put in global.asax instead.
Question,Can we assume that module's Init() method is called only on application start event? Could we use this assumption to i.e. register routes for applications whose global.asax codebehind we can't change? web.config is usually accessible and we can change it the way we want.Would this actually work?
Additional info,We can check HttpApplication code and check its InitModulesCommon() method. This one actually calls Init() of each registered HTTP module. What is more interesting is that this method is only used by InitIntegratedModules() and InitModules() methods. Which are both used only in HttpApplication.InitInternal() method. This is the basis of my assumptions, but I would like to know whether someone has abused IHttpModule.Init() for application start event.
View 3 Replies
May 31, 2010
the purpose of this HttpModule? It's showing up on my HttpModuleCollection list, but I don't know what's it's for.System.ServiceModel.Activation.HttpModule
View 3 Replies
Dec 30, 2010
I could use late events such as EndRequest and put inside Response.Write but this way whatever I'm adding would come after the /html tag and the HTML won't be well formed.
View 1 Replies
Feb 15, 2010
I am trying to access the page object in module and change the hyper links urls. Page object is being access properly, but changes I am making are not effecting the output. I mean here I am changing the url to TestURL.aspx, but this is not comming. could
View 1 Replies
Oct 6, 2010
I've tried to write my own HttpModule (IHttpModule) that adds a Header like that:
public class MyModule: IHttpModule
{
public void Init(HttpApplication c)
{
c.BeginRequest += delegate{c.Response.AddHeader("MyHeader", "MyValue");};
}
public void Dispose(){}
}
and tried to read in a aspx page like that:
var x = Request.ServerVariables["MyHeader"];
View 1 Replies
Jan 31, 2011
I have created one user control for changing the theme of the page where i have several buttons and on click of each button i am applying the theme of clicked buttons color and for that i have created several css files like red.css, blue.css , green.css etc.
now i want to apply this theme to the page but i am not able to do that from the user control as because i am not getting the stylesheet property in the page and thus i am not able to work further.
can anyone tell me how can i apply the theming from user control to the page its being called.?
View 2 Replies
Mar 3, 2010
1) I know there are lots of web sites that describe in what order events are called during the Asp.Net page life-cycle. But is there also a tool, perhaps Reflector, that would enable me to figure out by myself in what order are ALL the page's events and their event handlers called during the page's life cycle? 2) Would you say that trying to figure out exactly what is going on under the hood is a good idea or a waste of time? To clarify - I'd like to figure out exactly what is going on when a control tree is build - thus all the method calls, all the events called etc needed for control tree to be build ( I imagine there are hundreds or perhaps thousands lines of code written just for building a control tree).
View 4 Replies
Oct 7, 2010
I'm trying to resolve correct paths to javascript scripts in my head section using:
<script src="<%# ResolveUrl("~/Scripts/jquery-1.4.2.min.js") %>" type="text/javascript" />
In order to resolve the path I need to call databind using Page.Header.DataBind(); What event should I place the databind call in?
[URL]
When I put it in Page_Load as the article it works (only for firefox), but I wonder if this is the correct place.
When I follow this article IE 8 renders:
<script src="/Scripts/jquery-1.4.2.min.js" type="text/javascript" />
and firefox 3.6 correctly renders:
<script src="../../Scripts/jquery-1.4.2.min.js" type="text/javascript" />
Update:
Fixed browser issues by updating a script reference in a referenced user control to use ResolveUrl. Now browser issues are fixed. Still wondering where to put Databind.
View 2 Replies
Jul 16, 2010
I am getting the following error when I leave my web inactive for a while
"Response.Redirect.cannot be called in a Page callback."
I'm storing the user ids in session and during page load I check to see if the user id exists if not then I redirect them to the login page.
I am using devexpress controls, How can I get the redirect to work?
View 3 Replies
Mar 18, 2011
I am using a wizard control in which I have a next button that has causes validation = true. I also have a checkbox that when changed, in the event handler, I set causes validation = false for the next button. When that button is clicked - I get the following:
Page.IsValid cannot be called before validation has taken place. It should be queried in the event handler for a control that has CausesValidation.
Here is the code:
protected void chk_CheckChanged(object sender, EventArgs e)
{
CheckBox chk = (CheckBox)sender;
ImageButton ibtnStepNext = (ImageButton)(this.WizardSummaryTemplate.CustomNavigationTemplateContainer.FindControl("StepNextButton"));
ibtnStepNext.CausesValidation = (!chk.Checked);
}
What would be the recommended solution to disabling validation for the next button so I don't see this error?
View 1 Replies
Mar 23, 2011
I'm developing a custom URL Rewriter for a ASP.Net 3.5 project. This rewriter is not functionally different than most rewriters out there, the only difference being that the friendly URL collection is not loaded from a web.config file -- it's coming from a database instead. I made the naive assumption that it would be easy to develop a custom rewriter module from scratch, but now I know the mess I put myself in. I digress; let's go straight to the technical issues.
While testing the rewriter, I set up a friendly url that would take the user to a web form. Postbacks from this form should not alter the friendly address, as anyone would expect, sohttp://my.web.site/app_root/FriendlyURL is always rewritten asttp://my.web.site/app_root/not_friendly/form.aspxThings are fine when the browser first loads the FriendlyURL. The page comes up and is completely functional. However, when the form is posted back to the server, the page simply reloads but, at server-side, IsPostBack is false. It's like F5 was hit, except that a HTTP POST had indeed occurred.Unsurprisingly, when the interaction occurs through the "unfriendly" URL, the POST action triggers the postback as expected. This evidence suggests that HttpContext.RewritePath is somehow messing with the page lifecycle in a way that it loses sense of the postback operation.
View 1 Replies
Jul 16, 2010
I want to use SDelete after some code is run on an asp.net page. SDelete is a command line tool. My specific question is has anyone been able to run this SDelete from an asp.net page? More generic question would be, how do you run a command line utility from an asp.net page?
View 1 Replies
Feb 16, 2010
I have an image control that puts user's photo in it. Once it's loaded, I resize it using the javascript.But the thing is, when the page is loading, the image gets really big, then shrinks down being called by the javascript. Is there a way for me to pre-load the image before displaying it? I do'nt want to set the image control's width and height to fixed pixels at this point.
View 8 Replies
Mar 15, 2011
I want to create and render a dunamic page. Something like following:
[Code]....
But at RenderControl line, I get following Error:
RegisterForEventValidation can only be called during Render()
Is there a way to resolve it? At many forums I found set the EnableEventValidation=false in page directive. But this is a dynamic page and has no directive. Further this property is not available when I browse mypage properties.
View 1 Replies
Feb 17, 2010
when does the constructor on a page in asp.net page lifecycle get called?
View 1 Replies
Jun 24, 2010
I have the below structure. Admin_note --> AdminBasePage --> System.Web.UI.Page.But Page_Load does not call in AdminBasePage when calling page_load in Admin_note class.Do you know how to solve??
//// One file///
namespace UI.Admin
{
[code]...
View 6 Replies
Feb 18, 2011
I have a .aspx page that can be called from two other pages in the same project. There is a "Back" button on that page. When the user clicks on the back button, how do I know to which page (called from page 1 or page 2) I should go back?
View 8 Replies
Jan 3, 2011
I use a commercial web application that has the ability to use web triggers in order to do additional validation prior to saving its forms. The commercial web application simply makes a request out to whatever asp, php, etc. code that you've written... and in the case of asp.net I've validated forms by pulling variables off of the page.request object and then passed back a success/fail message to the commercial app using JSON.
I would like to use asp.net to display a modal popup control when called, in order to display some options. Because I would be triggering this code from a commercial web app, I'm wondering how I can display the popup control on top of the requesting page? The code I've currently written displays a blank page with my popup control on it. Is it possible for me to display ONLY the popup control when called from another website?
View 1 Replies
Oct 8, 2010
I just discover why some validation is working bad on some of my forms: the button click event is being called before page load.
What I need for good is (I consider this is a normal cycle of events):
The user press a buttonSome validation occurs at client side (js function returns true if success)Some validation occurs at server sideThe page loads again showing the results
But this is what I get (BAD):
The user press a buttonSome validation occurs at client side (js function returns true if success)The page loads showing no results, because server validation hasnt happened yet Some validation occurs at server sideThe page doesn´t loads again and I cant see the results, so my client cant know what happened on the server side
This is how I tried to implement this:
[code]....
View 1 Replies
Feb 22, 2011
Using Forms authentication, for some reason my login page is called 9 times. it causes some browsers to show "too many redirects!". Even with no javascript and nothing in the page_load event, it is called 9 times.
View 2 Replies
Nov 25, 2010
Can a required field validator be called from the code behind page?We have several check boxes and some of them require the user to enter a date, but not all of them.(This is not a checkbox list, but individual checkboxes).Any 1 of 6 different checkboxes selected makes a txtBox visible for users to enter a date.If they don't select one of these checkBoxes which require a date - it doesn't matter, the form will still be valid.I don't think validation groups can work here so looking towards doing through .vbHere's the existing code:
Public
Sub chkBoxI_CheckedChanged(ByVal sender
As
[code]...
View 3 Replies
May 7, 2015
I want to ask that if i have 3 content pages and 1 master page , e.g.
1 - Site.master
2 - DailyLog.aspx
3 - ProjectMaker.aspx
4 - ProjectProfile.aspx
so adding this c# coding :
protected void Page_Load(object sender, EventArgs e)
{
Session["Name"] = "Mudassar";
Configuration config = WebConfigurationManager.OpenWebConfiguration("~/Web.Config");
SessionStateSection section = (SessionStateSection)config.GetSection("system.web/sessionState");
int timeout = (int)section.Timeout.TotalMinutes * 1000 * 60;
[Code] ....
to only DailyLog.aspx , is sufficient for all pages ? because i want to show alert on every page ... Or do i have to insert the above c# code in all the content pages ?
View 1 Replies
Nov 1, 2010
when i call modal popup extender the background is scrolling , i want to freeze the background page then is there any properties or any other idea to get this ..
View 5 Replies
Feb 13, 2010
I am using Ajax authentication service to login/logout users.And have 2 boxes one for logged users,another for any user.When user logged in he get loged in box,then go to another page,then press back,i have unlogged box.In Page_Load i check if (Reques.IsAuthenticated) then i change box on corresponding,in this case on Logged in box.But Page_Load is not called when i press button back(in browser) or backspace.
View 1 Replies
