How To Determine If A Request Is The Result Of A Postback
Aug 5, 2010
I'm implementing a custom page caching solution and I don't want the request to be cached or retrieved from the cache if it's in response to a form submission or some sort of asp.net postback.I'm trying to figure out if the current HttpRequest is a postback. Is there a way of doing this outside the context of a page or other usercontrol? In otherwords if I'm inside an HttpModule I don't have access to this.IsPostBack but I still need to determine if it is in fact a postback.
View 5 Replies
Similar Messages:
Jan 21, 2010
I there a way to know if a request is a soap request on AuthenticateRequest event for HttpApplication? Checking ServerVariables["HTTP_SOAPACTION"] seems to not be working all the time.
public void Init(HttpApplication context) {
context.AuthenticateRequest += new EventHandler(AuthenticateRequest);
}
protected void AuthenticateRequest(object sender, EventArgs e) {
app = sender as HttpApplication;
if (app.Request.ServerVariables["HTTP_SOAPACTION"] != null) {
// a few requests do not enter here, but my webservice class still executing
// ...
}
}
I have disabled HTTP POST and HTTP GET for webservices in my web.config file.
<webServices>
<protocols>
<remove name="HttpGet" />
<remove name="HttpPost" />
<add name="AnyHttpSoap" />
</protocols>
</webServices>
Looking at ContentType for soap+xml only partially solves my problem. For example,
Cache-Control: no-cache
Connection: Keep-Alive
Content-Length: 1131
Content-Type: text/xml
Accept: */*
Accept-Encoding: gzip, deflate
Accept-Language: ro
Host: localhost
mymethod: urn:[URL]
Some clients instead of having the standard header SOAPAction: [URL], have someting like in example above. "mymethod" represents the method in my web service class with [WebMethod] attribute on it and [URL] is the namespace of the webservice. Still the service works perfectly normal. The consumers use different frameworks (NuSOAP from PHP, .NET, Java, etc).
View 4 Replies
Jul 23, 2010
I have denied anonymous access to the entire application using the following Web.Config setting:
<authorization>
<deny users="?" />
</authorization>
Then, for various paths, I have allowed anonymous access using Web.Config settings such as this:
<location path="Home/ShowLogin">
<system.web>
<authorization>
<allow users="*"/>
</authorization>
</system.web>
I'd like to be able to determine during the processing of a given request whether the requested URL is to path that allows anonymous users or whether the request is to a path that denies anonymous users.
What is the most elegant way of determining this?
View 1 Replies
Apr 5, 2010
Just wondering if anyone has any idea how you can determine how many bytes of a request have been read/received by the server... In other words how do I stream http request...
In that, users are uploading files and I want to report on a perotic basis how many bytes have been read/received so far.
View 2 Replies
Sep 15, 2010
Given a set of uploaded files in Request.Files, how do figure out which form field yielded which file?
I have a generic form emailer that various forms post to. This file generates an email of the name/value pairs contained in the form post. I'm trying to add support for uploaded files such that the table of name/value pairs will show the name of the file upload element and the name that the file was saved as.
However, I can't figure out how to link that information together. HttpPostedFile doesn't contain any information about the HTTP request (like which field name was used), and Request.Form doesn't contain any entries for uploaded files.
So while I can easily upload the files, I don't have an easy way to generate an email saying "this uploaded file was for this field, and this uploaded file was for that field".
View 1 Replies
Oct 1, 2010
Is there a way where I can actually view the name of a post back element? Below code goves me an alert but all it says is "object HTMLSelectElement". In my case it should be DropDownList3 based upon a "selectedindexchanged" event with autoppostback=true.
Code:
var pbControl = null;
pbControl = args.get_postBackElement();
alert(pbControl);
var ExecutingControl = "DropDownList3"
if (ExecutingControl == pbControl) {
alert("DropDownList3 - is the post back element");
View 2 Replies
May 13, 2010
Currently I have two events in my view that can trigger the post back (A dropdownlist and a submit button).
1. <%= Html.DropDownList("List", ViewData["Days"] as SelectList, "--Choose Day--", new { onchange = "this.form.submit();" })%>
2. <input type="submit" value="Submit"/>
When either of these are used, it they both call the [AcceptVerbs(HttpVerbs.Post)] Index() method.
What I want to know is how can I know which event caused the postback, because I need to process each one differently.
View 2 Replies
May 17, 2010
I have 5 infragistics webdatagrid controls on page, I am using paging and sorting features for the grids. For paging to work for a grid, I need to rebind the grid on every postback in Page_Init or Page_Load event and after that page_indexchanged event gets fired.
Now, when I click on any page number in second grid, I don't want data of other 4grids to be re-bind. I just want to know which grid has done postback and bind that particular grid.
I checked out Request.Forms["__eventargument"] but its value is comma (",").
Consider the scenario for asp.net gridviews and depending upon that I'll get idea to proceed with Infragistics controls.
View 5 Replies
Dec 19, 2013
I have a web application which has rather a lot of controls. I also have several buttons (add, edit, save, cancel). Most of my content page is in an update panel so it does not process the whole page. On form submit I have some javascript code which shows a div 50% opacity and an animated gif to prevent users clicking on the buttons more than once whilst it is processing the data to the server. Here is the javascript / call:
Code:
onsubmit="overlay();"
function overlay() {
el = document.getElementById('overlay');
el.style.display = "inline";
document.getElementById('Image2').src = "../Images/loader.gif";
}
function removeoverlay() {
el = document.getElementById('overlay');
el.style.display = "none";
}
The problem is it the form disables like I want it and the giff animates for about 1.5 seconds but it does not enable the form for a further 4 seconds.
Is there anyway to see what it happpening at this point. If I put some watches in my code behind it runs through less than a second so what else can it be doing.
Also on some laptops the form does not fit vertically so there is a scroll bar. When the div is shown on a submit it does not do the full screen including the scroll area.
View 10 Replies
Sep 16, 2010
Does anyone know a simple way to determine if a user control is contained in an update panel that was triggered for async postback?
At the moment, the only pseudo logic for this I can think of is?
'Loop through the update panel controls on the page and find the one that is involved in the postback (isInPartialRendering)
'Try to find the user control as a child of the update panel
View 5 Replies
Aug 24, 2010
a) In Asp.Net we can check whether a request is a postback or not via Page.IsPostBack property.But where does this property get its value from? Thus, where in the incoming request does browser put this value? b) As far as I can tell, hitting a reload button also causes browser to send form data back to the server. Thus, is under the hood hitting browser's reload button same as pressing a submit button ( which is nested within a FORM element)?c) Assuming browser displays A.aspx for the fist time and assuming user clicks browser's reload button, then I would think this request will be considered as a postback by Asp.Net (especially since browser also sends back any form data), but it's not.
View 1 Replies
Apr 13, 2010
I have a report that I generate with HTML.
I'd like to get the HTML output of the page, and be able to send it via email. I'm having problem with session, because the report redirect me to the login page because when I create a new WebRequest, it doesn't use the information of the current session.
Is there a way to get the HTML of the report without having to code a work-around for the security ?
View 1 Replies
Sep 1, 2010
If you have <img src=""> on your page, the image load will result in another web request to the page that was originally loaded. Is there a way (in ASP.NET) to detect that the web request was the result of being loaded for an <img> tag like this?
The only difference I can find is the HTTP_ACCEPT value of */* for <IMG> requests, vs. a limited HTTP_ACCEPT value for the actual page request.
View 1 Replies
Sep 16, 2010
I'm using the new Aurigma Image Uploader Flash control, and creating sample pages works great. However, when I drop this control onto an existing page on my existing site, it doesn't work. I can only suspect something in the masterpage or something else on the page is messing with it.
POST http://localhost:15361/myaccount/placead/new.aspx?postFiles=1 HTTP/1.1
Host: localhost:15361
Connection: keep-alive
Referer: http://localhost:15361/WebResource.axd?d=lAdTukuIRYXXlkVPS6yEQZdE0ZRhHxifFcDrPbzU_MDuk0OznXELaqd3rcUkbR18raDHqf4pWx6gUcGn391SmV3WbAt2TQUplpFdDsAU-K_ZPuSQ_dytDj992Foht1WO0&t=634202353399418554
Content-Length: 891463
x-preprocess-required: true
[code]...
View 4 Replies
Mar 8, 2010
My app has broken after upgrading to ASP.NET 2.0. The problem is that Request.QueryString is empty when the SelectedIndexChanged event of a IE Web Controls tab strip is fired. It worked perfectly in ASP.NET 1. I have the tab strip contained within my own UserControl.
View 3 Replies
May 22, 2010
I want to provide status updates during a long-running task on an ASP.NET WebForms page with AJAX.Is there a way to get the ScriptManager to execute and process a script for a web service request concurrently with an async postback? I have a script on the page that makes a web service request. It runs on page load and periodically using setInterval(). It's running correctly before the async postback is initiated, but it stops running during the async postback, and doesn't run again until after the async postback completes.
View 3 Replies
Jan 24, 2011
I am trying to add some JQuery animations before and after every postback request is made inside my UpdatePanel. What I have so far is something like this:
<script type="text/javascript">
$(document).ready(function () {
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(EndRequestHandler);
Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(BeginRequestHandler);
function EndRequestHandler(sender, args) {
if (args.get_error() == undefined) {
// End Request (1)
}
}
function BeginRequestHandler(sender, args) {
// Start Request (2)
}
$('.MyButtons').live('click', function () {
// Before request (3)
});
});
</script>
<asp:UpdatePanel runat="server">
<ContentTemplate>
<asp:Button runat="server" CssClass="MyButtons"/>
</ContentTemplate>
</asp:UpdatePanel>
Let say I want to put some animation code at (3) that will be executed and then proceed with BeginRequestHandler function. How should I do that? Because right now the whole process executes 3,2,1 and I dn't know how to add that delay between steps 3 and 2. In other words I want to execute step 2 manually at step 3. Don't really want to use hidden buttons to do that.
View 1 Replies
Oct 8, 2010
I know that dynamic buttons and buttons in general don't use a typical postback and they post through the page.request.form. Okay, so in visual studio, I was able to determine that page.Request.form and in the all-keys property, i SEE my button there. It is the last item in all-keys.
When I am clicking this dynamic button which is in an updatepanel, the script below does not detect it as a button, it is still showing it as null:
public static Control GetPostBackControl(Page page)
{
Control control = null;
[Code]....
but here is the kicker, when I am traversing through the object, I am looking at the object C and the property 'ctl'. The ctl is showing me a value of "ButtonRow_0Col0" and it is of type string. This is good! But , the 'c' control object still says 'null'.
View 3 Replies
Jul 1, 2010
I have this ListView that has a Drop Down List.Everything works fine (I think/hope) except that the drop down list are not showing its result correctly.This is the code.
Front-End
[Code]....
The code behind consist of the page_load and the ItemDataBound
[Code]....
View 3 Replies
Mar 1, 2011
I'm having a problem with my Linq to XML query. I'm getting the result data I want, but it's nested so deep that there must be a better way.Here is my XML:
[Code]....
I'm trying to get a list (simple string[]) of all Item IDs where Category Names contains "Other".Here is my Linq:
[Code]....
[Code]....
Here is a snapshot of my result from Visual Studio:The results I want are there ("item100", "item400", "item500"), but buried so deeply in the results var.
How can I get the query to return a simple
string[] = { "item100", "item400", "item500" }
View 4 Replies
Aug 9, 2010
Background: I use stored procedures exclusively for an ASP.NET application. I am using a DataReader to load a dataset object.
View 4 Replies
Jan 27, 2011
We're trying to implement functionality that intercepts, inspects, and alters if needed data in the Request.QueryString and Request.Form collections.
Since Request.QueryString and Request.Form are readonly, is it possible to use a HttpModule to do this without Reflection or Response.Redirect?
We're thinking that we can construct a new HttpRequest, and replace the original one. Would there be any implications in doing this?
I know mocking this object is impossible without using HttpRequestWrapper, but wasn't sure whether ASP.NET sets other things beyond the constructor.
View 2 Replies
May 15, 2010
I have a webservice which works 100% fine on my developer machine. Where Web Service is installed on LOCALHOST on my developer machine,Then i went to my servers, I installed webservice on one server and map it with the server where the website is hosted, Then i tried accessing this service using BROWSER from my web server, it worked fine, That means the mapping was done perfect.Then i run my program on web server (website). It worked fine on page1, then on page2, but when i did the same and call same function on page3, It popped me any error of
View 4 Replies
Dec 9, 2010
Is it at all possible to inject a request into IIS for a page, have IIS and ASP.Net handle it as normal, but get the response as html handed back to me programmatically?
Yes, I know that I could connect to port 80 using WebRequest and WebResponse, but that becomes difficult if you are accessing the IIS server from the same physical machine (loopback security controls et al).
Basically, I want to inject the request (eg for [URL]) between the points at which IIS would normally talk to the browser, and the point at which it would route it to the correct ASP.Net application, and get a response back from IIS between the points at which ASP.Net/IIS applies the httpfilters and hands the html back to the browser.
I'm predominantly working with IIS7 so if there is a solution that works just for IIS7 then thats not an issue.
View 2 Replies
Jun 29, 2010
This is a input
<input type="image" src="<%=Url.Content("~/images/shopping-cart.jpg")%>" alt="shopping cart" id="btnshoppingCart" name="btnshoppingCart" value="shoppingCart" />
when i browse the page with firefox and click on the input Request.Params["btnshoppingCart"] != null or Request.Form["btnshoppingCart"] != null is statisfied.
When i browse the same page with internet explorer 8 and click on the same input Request.Params["btnshoppingCart"] != null or Request.Form["btnshoppingCart"] != null is not satisfied. When i used the watch i saw that there is no key by the name of "btnshoppingCart" in either Request.Form or Request.Params if input is clicked from internet explorer. However when it is clicked from firefox there is value "shoppingCart" inside Request.Form and Request.Params against "btnshoppingCart" key. One more strange thing that i observed was that are two keys "btnshoppingCart.x" and "btnshoppingCart.y" inside both Request.Form and Request.Params whenver clicking is done from both internet explorer and firefox. This is happening against all inputs of type image irrespective if the input is present inside a html form or not. Forms are created like this
<% using (Html.BeginForm("Action", "Controller", FormMethod.Post)){%>
The version of internet explorer is 8.0 and firefox is 3.6.6
View 5 Replies
