Javascript - Detecting When There Is A Response On An Iframe?

Jul 20, 2010

I have created an AJAX style file download (using an iframe) and all works well... however, I need to detect when the iframe has received a response... see below:


function download() {
var ifrm = $('#iframedownload')[0];
ifrm.src = '/downloadfile.aspx?fileid=whatever';
ifrm.onreadystatechange = function () { // Checking
if (this.readyState == 'complete')
alert("I would really like this piece to work!");

C# for downloadfile.aspx:

Response.AddHeader("content-disposition", "attachment; filename="" + zipFileName + """);
Response.AddHeader("Content-Length", respBytes.Length.ToString());
Response.ContentType = "application/octet-stream";

View 1 Replies

Similar Messages:

Detecting Javascript During Login Of An MVC App

Jan 24, 2011

My LogIn action originally looked like this:

return new RedirectResult(nameValueCollection["ReturnUrl"]);

But, I would like to know whether the client has JavaScript enabled before the home page loads, so I changed it to this:

return View(new LogInViewModel { ReturnUrl = nameValueCollection["ReturnUrl"] });

And send the following view instead of the instant-redirect:

@model Obr.Web.Models.LogInViewModel
Layout = null;
string noJSReturnUrl = Model.ReturnUrl + (Model.ReturnUrl.Contains("?") ? "&" : "?") + "noJS=true";
<!doctype html>
<title>Loggin in...</title>
<meta http-equiv="REFRESH" content="1;url=@noJSReturnUrl">
<script type="text/javascript">
window.location = "@Model.ReturnUrl";
Loggin in...<br />
<a href="@noJSReturnUrl">Click here if you are not redirected promptly.</a>

The idea is that if the user does not have JavaScript enabled, they see a brief loading message, and the home page loads after a second. If JavaScript is enabled, the page reloads instantly. In the future I could even post to the server the dimensions of the viewport and such. Does this look like it would work? If the window.location command takes longer than a second to run, will it be interrupted by the meta refresh, or does it block that refresh? I am hoping the latter, so I don't need to increase the delay for those non-js people.

I figure my new way adds a little extra weight to the payload of the redirect, but it's not an extra round-trip or anything, is it? The redirect happens anyway, does it not? Update: I neglected to mention a very important point. I do not actually have control over the login screen itself, only the page it posts to. This code is part of a product that relies on an external authentication mechanism.

View 2 Replies

Detecting And Closing Frames Using Javascript

Jul 16, 2010

I'm working on an ASP.NET web application. There's a bill page which has two links to different pdfs of the same bill. When you click on one of the links it takes you to a ViewPDF.aspx page that shows the pdf. There's also an option to view both in a split screen so that you can compare them. When you click on this link it takes you to BillSplit.aspx which has a frameset and two frames that both point to ViewPDF.aspx. This all works perfectly.

The problem is that if an error occurs while pulling up the pdf. The application has an error page that has a few links back into the application. If you use one of these you can go back into the app and continue but now inside the frame. The URL still says BillSplit.aspx but the application is completely unaware of this since frames are HTML elements not controls.

What I would like to do at this point is detect that you've returned to the application and close the frame you aren't using. Essentially I'd like to redirect you away from BillSplit.aspx and to the page you're actually requesting. I'm pretty sure this would need to be done in Javascript either on the BillSplit page or on the pages that you go to later. So I guess what I'm asking is, is there a way to ensure that the BillSplit.aspx page and it's two frames point only at ViewPDF.aspx?

View 1 Replies

Search - Detecting Enter In TextBox No JavaScript

Mar 24, 2010

Basically I have a Search Text Box with a LinkButton Control on which the click event is fired. now what i want is when the user type keywords and press enter the Click event got fired. So No Javascript Only ASP.NET With VB.NET v2.0

View 2 Replies

Javascript - Detecting Keydown Event With Jquery

Sep 20, 2010

In my project there is a button search which seems to be the default button to trigger when enter key has been pressed. How can i detect a keydown event with jquery for a login button? Its an project.

View 1 Replies

C# - Detecting If JavaScript Is Enabled On A Mobile Browser

Oct 29, 2010

I want to check if a mobile browser has javascript enabled before displaying a page to the user. The code I've found from my research is:

System.Web.HttpBrowserCapabilities browser = Request.Browser;

So to ensure that javascript is enabled on a browser, you need to check wheather the returned valued is either equal to or bigger than 1. This works on normal browsers, but when I test it on my phone the returned value is always 0.0, no matter if my javascript is enabled or disabled. Is there a way to check if javascript is enabled on a mobile browser or will the browser handle the incapability on it's own?

View 3 Replies

Web Forms :: Response.write In Iframe In IE?

Apr 21, 2010

in a webpage I have a link to let the user download file, such as,

<a href="showfile.aspx?filename=xxx">download file</a>

in showfile.aspx, I send the file using Response.OutputStream.Write method. now I get some problem when somebody put this webpage in an IFrame and open in IE, as I checked the code, showfile.aspx is requested twice when clicks the link, and in the second time the cookies of authorization and session Id are missing. I tried to add the p3p header but not question is, is this how the IE designed with iframe? is there anyway to work around?

View 3 Replies

JavaScript - Detecting Client-side DOM Changes Server-side - Is It Possible

Mar 7, 2010

I'm working on developing a custom control to select items from a predefined list. This is accomplished via 2 ASP.NET ListBox controls, with a few buttons to trigger the movement of ListItems from one ListBox to the other (lets call these ListBoxes lstSelected and lstDeselected).

This is easy enough to do in ASP.NET or JavaScript independently: I have both working. However, if modifications are made via JavaScript, ASP.NET retains no knowledge of this. Is there any way to register the creation of of options in a select tag without AJAX?

View 2 Replies

Javascript - How To Load Html In <iFrame>

Feb 14, 2011

I am storing html of error pages of my site in sql table, i want to display them in a window, on the admin side, but not able to load the saved html in iframe, i am using mvc2.

its needed to save the pages, and display later to admin.

View 1 Replies

JQuery :: Close Iframe In Javascript?

Mar 20, 2011

I'm using this jQuery app's iframe, it has a close button, but I need a javascript function to close it also, is that possible?

View 5 Replies

Going To Parent Page From Iframe Without Javascript?

Jan 31, 2011

I am using 3.5

I have an iframe. I want to go to the parent page of the iframe by clicking a button that resides in a page within the iframe.

I need to do it using server side code and not using javascript (because this will occur when javascript is disabled).

View 5 Replies

Web Forms :: How To Find The Div That Is Inside A Iframe Using Javascript

Mar 29, 2011

i am using a iframe.iframe have a div that is declared runat="server".i wnat to find this iframe div and wnat to amke them empty using javascript....

how can i do this......

View 2 Replies

Javascript - Redirect From User Control Placed In Iframe?

Mar 29, 2011

I have a user control with following hyperlink:

<asp:HyperLink ID="MakeOrderLink" runat="server" onclick="return MakeOrderLink_onClick(this);" />

javascript function redirects based on provided parameters to another page

function MakeOrder_onClick(sender) {
//param1, param2

document.location.href = sender.href + '&count=' + param1 + '&date=' + param2;
return false;

This user control is placed on .aspx page, which I need to provide as an iframe.

I need the page to open in new window.

MakeOrderLink.Target = "_blank" works when the control is placed only in .aspx page but I can not figure out how to redirect when it is nested two levels down (link inside user control contained in iframe contained in another .aspx page).

View 1 Replies

Javascript - Resize IFRAME Onload In .aspx Page

Feb 8, 2011

In an .aspx page with the codebehind i am using IFRAME , which would be created inside the repeater control. Since i want to resize the IFRAME based on the content within the page i have been using the resize function Obtained from here on the IFRAME onload as shown below.

<iframe id="IframeSubsectionArea" scrolling="auto" width="100%" onload="resizeIframeToFitContent(this)" runat="server">

However it is throwing the error as the method could not be found in the form. Is there any client side script variant for the onload event? May i know,What might be the reason for the error and its solution?

View 1 Replies

JQuery :: Click Link Inside Iframe Using Javascript?

Jan 13, 2011

i need to put an IFrame in my page, this iframe page include a link with text "logout", the link didnot has an ID or Name tags.

<a href="">Logout</a>

how can i click this link from outside this Iframe using javascript?

View 2 Replies

Javascript - Display An Image While A Page Is Loading In An Iframe?

Nov 26, 2010

I have a website with a menu, when menu item is clicked I display the page for that menu in an iframe(iframe is set to display home page initially by default). sometimes it could take few seconds to display the page for the selected menu item (for example reports) and I would like to display a loading image while the page is loading. how to do this using javascript or jQuery

View 3 Replies

Javascript - Redirecting The Whole Page From Script Inside Iframe?

Feb 22, 2011

Im looking for a way to redirect to another page, when i click a link in the iframe. i dont want just the iframe to redirect, but the whole window.

is this possible?

preferably in javascript or in if possible

EDIT: When i try the answers i get redirected to the source of the iframe, not to the source of the site the iframe lies on... Ill show you the code

function redirect() { = "./Nyheter.html";

As i dont want the code to be static, so that i can use it on many pages without changing the url, i want to do it this way, alt. get the url from db... but preferrably this way, Solution? Also, forgot to mention. The pages are not on the same domain, they are on different ones..

View 4 Replies

C# - Print Using Javascript By Writing The Content Into A (hidden) IFrame?

Nov 4, 2010

have a application where I'm trying to load few documents into memory and print it. I learned that I can't use PrintDialog in a web app and the only way is to print using javascript by writing the content into a (hidden) iFrame.My question is how can Silverlight help me with this? Is it possible to show print dialog and get printer settings and print without a preview by sending the files directly to the printer? How hard it is achieve to using SL?

View 1 Replies

Access A Javascript Which Resides In A Script File From Iframe?

Apr 4, 2011

i want to access a javascript function which resides in a script file from another page with iframe.
my sample code :

Page from which javascript need to be accessed.

<iframe id="FRAMESET" src="default.htm" width="0%" height="0%">
Your browser does not support iframes.
<html xmlns="">
<link href="Scripts/main.js" type="text/javascript" />
function helloWorld() {
alert("hello World");

i want to access this function on main page. i tried document.getElementById('FRAMESET').contentWindow.helloWorld(); but gave me error "that document.getElementById('FRAMESET').contentWindow.helloWorld();" is not a function.

View 2 Replies

Javascript - Dynamic IFrame Height Not Working With Ajax?

Oct 5, 2010

I am developing a web application with ASP.NET 3.5 with C# and Telerik Ajax Control. I have a iFrame in my master page. Application load other pages in iFrame dynamically and iFrame height adjust the dynamically when page load. I uses RadScriptManager , RadAjaxPannel, RadAjaxLoadingPannel in my page. The problem is when ajax "call back" the page, iFrame height not adjust dynamically.

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="MastetPage.master.cs" Inherits="MastetPage" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
<html xmlns="">
<head id="Head" runat="server">


View 2 Replies

Javascript - Save .NET IFRAME From A Custom Entity's OnSave Event?

Apr 10, 2010

I have a custom ASP.NET solution deployed to the ISV directory of an MS Dynamics CRM 4.0 application. We have created a custom entity, whose data entry requires more dynamism than is possible through the form builder within CRM. To accomplish this, we have created an ASP.NET form surfaced through an IFRAME on the entity's main form.Here is how the saving functionality is currently laid out:

There is an ASP.NET button control on the page that saves the entity when clicked. This button is hidden by CSS.The button click event is triggered from the CRM OnSave javascript event.The event fires and the entity is saved.Here are the issues: When the app pool is recycled, the first save (or few) may: not save be delayed (ie. the interface doesn't show an update, until the page has been refreshed after a few sec)Save and Close/New may not save For issue 1.1 and 2, what seems to be happening is that while the save event is fired for the custom ASP.NET page, the browser has moved on/refreshed the page, invalidating the request to the server. This results in the save not actually completing.

Right now, this is mitigated with a kludge javascript delay loop for a few seconds after calling the button save event, inside the entity OnSave event.Is there any way to have the OnSave event wait for a callback from the IFRAME?

View 4 Replies

Javascript - No Response From Webpage?

Oct 14, 2010

I have a web page where I redirect the user to if I see that IP is not valid. I want that user's browser will get no response but kept into waiting state, but I also want that my server thread is not blocked for that request. So the idea was that server will response quickly but the user' browser will put into waiting loop to discourage the user. How can I achieve this easily? Is it possible without JavaScript?

View 2 Replies

Web Forms :: Iframe From Code Behind / Load A Dynamic iframe But It Cannot Visualize The Page?

Nov 30, 2010

i am trying to load a dynamic iframe but it cannot visualize the page.

this is my html code:


and this is my codebehind:


i am using a content update panel on the page but the div of the iframe is out of the content panel.

View 1 Replies

Iframe Timeout / All Pages Are Loaded On That Iframe According To Menu Selection?

Dec 23, 2010

in my application iam using an iframe, all pages are loaded on that iframe according to menu selection.My problem is that while timeout the login page is loaded inside the iframe.under the menu sectionHow can i overcome this?

View 1 Replies

Javascript - Uploadify Response Value Is Always Undefined?

Mar 4, 2011

I'm using Uploadify to upload some images with ASP.NET. I use Response.WriteFile() in ASP.NET to return the result of the upload back to JavaScript. As specified in the documentation I'm using onAllComplete event to check for response string from ASP.NET.

The problem is it that the alert(response); is always undefined in JavaScript.

JavaScript code as below:

$(document).ready(function() {
var auth = "<% = Request.Cookies[FormsAuthentication.FormsCookieName]==null ? string.Empty : Request.Cookies[FormsAuthentication.FormsCookieName].Value %>";


Reason for the FormsAuthenticationTicket object is to pass the authentication cookie though when using the Uploadify with Firefox.

I have seen many examples where Response.Write returns a value back to the onAllComplete event. But all I get is undefined. I have also tried to use Context.Response.Write, this.Response.Write, HttpContext.Current.Response.Write. They all return undefined.

View 1 Replies

Copyrights 2005-15, All rights reserved