MVC :: BeginRequest Event Fires For All Static Files?
Oct 29, 2010
I was under the impression that static files (CSS, images, @font-face files, etc) bypassed ASP.NET completely, and were served directly by IIS. However, my BeginRequest event handler is being called for every HTTP request, including those for static files. This concerns me because I'm creating an Entity Framework data context to be used for the lifetime of each request in that event handler. I don't want to create those contexts if they're never going to be used.
I'm using IIS 7 on Windows 7 Ultimate with so special handler mappings defined. Do I have it wrong? Should these events be firing?
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Sep 13, 2010
we are having some weird issues with URL Routing in ASP.NET 3.5.
We have a search box that does a search and redirects to a routed URL.
When we search for the first time (aka Press a button that forces a postback) everythign works as expected. we get:
1. BeginRequest event.
2. Determines Route
3. Calls Routehandler to match the route item to the actual destination page
4. Routes the url appropriately.
After you do one search successfully and try again it fails to call the BeginRequest event. Because of this the routing data never gets called and so the url is never routed to its correct destination. What is weirder still if we append a "/" (trailing slash) to the url after the initial postback it DOES work properly again.
So our search route looks like this
mydomain.com/Search
entering a term and pressing the SEARCH button would yield a result url like this:
mydomain.com/Search/Results/MySearchTerm
Going back (after 1 successful search) you then need to use this url or else BeginRequest will never fire:
mydomain.com/Search/ < (note the extra "/" at the end)
why the BeginRequest event never fires unless the slash is appended?
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May 6, 2010
I'm developing IP Blacklisting HttpModule in asp .net application and I found one very annoying thing. Each request to the asp net page generates tens of "subrequests" to application resources like images, client side scripts, styles etc.
Now in my application I'm listing to the BeginRequest event and when it is fired I'm loading Dictionary with blacklisted IPs from application cache and check user's IP against it. I've made a simple log of what is actualy happening during each page view, here are the results:
[Code]....
As you see, one request to Login page causes BeginRequest to fire 18 times, there is 18 dictionary loads, 18 lookups etc. That's not the way I want it to be.
Is there any other event that is raised only once per each request? Where do you place the blacklisting mechanism in your applications? I know I can do it through ISAPI filter, but the catch is, this site is on the shared hosting and I'm not sure I can use it on their IIS. Also I'm not sure if ISAPI filter can access some piece of cache with this blacklist (I don't want to load it from DB on each request, that's obvious).
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Jul 19, 2010
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Feb 14, 2011
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Jun 30, 2010
How do I create a new event in a base page class that fires after all derived pages have fired their load events but before any controls fire their load events.
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Public Event FirstLoad(ByVal sender As Object, ByVal e As System.EventArgs)
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Feb 10, 2010
I've got the an bit of ajax and the succeed runs twice. I've got a global var that I used to keep track.
Code:
var counter = 0
$('#txtLookupText').keyup(function(event) {
$(document).ready(function() {
});
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type: "POST",
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data: "{'inputStr': '" + $('#txtLookupText').val() + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function(msg) {
AjaxSucceeded(msg);
},
error: AjaxFailed
});
});
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var li = ''
for (i = 0; i < result.length; i++) {
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}
counter += 1
alert(counter)
}
function AjaxFailed(result) {
alert(result.status + ' ' + result.statusText);
}
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Mar 17, 2011
I have an aspx page that is wrapped with an UpdatePanel control, users can post comments and delete them later, when the user clicks the delete for the first time it deletes successfully but if he wants to delete another comment, it works only after two clicks on the button.the delete button is inside a web user control that is added dynamically at run time.
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Feb 11, 2010
<asp:LinkButton ID="LinkButtonNewServicesCategory" runat="server"
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Oct 29, 2010
which event fires first in the page life cycle and why?
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Mar 12, 2010
I want to clear the textbox control in the modalpoput at a time of showing it, but i dont know which event fires while ModalpopupExtender show time.
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Mar 18, 2011
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May 10, 2010
I do not seem to be able to capture the tab index when clicking tabs
Code:
<cc1:TabContainer ID="TabContainer1" runat="server" Height="20px" ActiveTabIndex="0"
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Code:
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Nov 12, 2010
I'm trying to prevent the user of double clicking on a submit button.I have been looking arround for the solution but still can't get it to work.
[Code]....
Now when the user clicks on the button it is diabled and the page,load event is fired. But it does not fire the buttons click event.
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Aug 31, 2010
I have an ASP.NET page that contains a gridview.
I have to create columns dynamically based on a datatable, some field type info and some header texts.
I do that by creating templates.
It created the grid fine and all looks good, however when i click a checkbox and the checkedchanged event fires then something odd happens
The first time i click its fine and i get the expected values in the event
But the second time then the event gets fired with the values from the first time and then again with the values from the checkbox that i actually clicked.. The third time the event gets fired 3 times, first 2 times with the old values and the third with the correct value.
Here is the code:
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;........
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Oct 19, 2010
Page_load event fires two time in firefox and the same page is working fine in IE. What might be the problem? If it is problem with Autoeventwireup then page_load event must fire two times in IE too. I believe it is not a issue of Autoeventwireup.
how can i find out exactly where the issue is.
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Dec 30, 2010
In my web form, I have dropdown list with autopost back true in ajax update panel. I have javascript alert in Onchange event. But it fire twice and alert msg show it twice
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Aug 12, 2010
I have a page which contains linkbuttons and panels. all panels have DetalilView and gridView controls. On click of linkbutton, panel's visibility is set. everything works fine on my local server. But on production server, no events of Button, DetailsView and GridView fires.
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Jan 5, 2010
I have a dynamically created user control which is accomplished usingLoadControl().
When I debug, the LoadControl call is called once, however the Page_Load inside the user control is called twice. On each occasion, the postback property is false, so it seems somehow the Page_Load event is called outright 2 times and nothing to do with any postback?
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Jan 26, 2011
How would I get the previous item on DropDownList before OnSelectedIndexChanged fires the event?
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Mar 24, 2010
I dont know what happened but none of my buttons or linkbuttons causes a postback anymore. I have dragged a few updatepannels on the page but the linkbutton concerned is not enclosed within an update pannel. when I click it there is just no postback happening anymore. I set the debugger at Page_load but...its not reached. I used firebug to analyse the http requests. there is none. its like those are not considered buttons anymore.
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I have the following problem. I have a user control with its own events and procedures. I added this control to a page programmatically. It appears as it should but when you click a button on the user control. the control disappears from the page.
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Feb 4, 2010
Basic concept of AJAX is to cause Partial post back of the Page. If we use AJAX, Page Load occurs, than what is the difference between normal Pages' Page_Load event (without ajax) and Page load event of a Page with ajax.
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Aug 2, 2010
I have a LinkButton which fires an OnClick event to update some Labels; however, after the first firing of OnClick, it won't fire again when I click another (or the same) LinkButton which runs the same OnClick event. (It's a list of people, each a LinkButton, and clicking on one brings up their details)
If I leave the page a few minutes, it will work again, almost as if whatever was preventing OnClick firing timed-out. Of course, this won't be any use to the users!
This is my ASP.NET code for the LinkButtons (encapsulated in a DataList):
[Code]....
All the connections work, the data is retrieved, etc, so everything except the OnClick firing works. I've done a search of the internet and the forum, and found this seems to have been a long-standing problem since the first ASP.NET, but there is no solution for ASP.NET 3.5. Does anyone know what causes this, or where I might be going wrong?
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Sep 21, 2010
I haven't been able to find anything on the net about this yet. A project that used to work fine all of a sudden started having trouble with a couple users. The TextBoxWatermarkExtenders for these users are now always firing the TextChanged event of the textboxes they are assigned to for every postback. I don't think this is what they are supposed to do. They didn't use to do this. Has anyone else experienced this? I can add code to ignore these unintentional events, but I would like to know why all of a sudden the change in behavior.
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