Is iframe should not be used ever?
how screen reader behaves with
iframed content?
Without iframe how we can embed any
PHP page into asp.net based site?
What are cross browser alternatives?
I don't see why using an iframe is a problem.
If you can't use it then you could either use javascript to download and insert the generated html from the php page, or you could download the html in your asp.net server-side code and insert the html in a control.
Either approach should work well, but using javascript across domains is difficult.
If you go for the asp.net server-side approach you could do the following:
First insert an control where you want to include the html from the php page
In your Page_Load event use the WebClient to download the html as a string
Remove the <html>, <head> and <body> tags so that you only have the pure html markup. You may want to add any script- and css-references to your page if they are needed.
Assign the cleaned html to the Label controls Text property.
This will work, but there are a few points to make:
First you should consider if you trust the source of the php page. If you don't then you will want to do some extra cleaning of the html before displaying it
Second, you will probably want to cache the downloaded html so that you don't have to download it for each page view.
Related
I am writing a preview function to let user preview the HTML file they uploaded and do some minor editing. The HTML file will contain no Javascript and no external CSS. All CSS are either inside style tag or inline. Images, on the other hand, will always be external as we don't provide space for storing images.
iFrame is not a good solution, because:
The preview is before actually saving the content, so I cannot provide an URL for iFrame to load the page.
It is difficult to touch the element inside iFrame. As the user will be doing minor update in another text box showing the plain HTML, I will need to update the elements inside frequently.
However, if I just insert content into an <div> the repeated <html>, <head> and <body>tag will crash the page.
So, is there a way I can preview the HTML without iFrame?
if you dont want to have the main app to affect the styling of the preview, you need to use iframe. have you see iframe's content window? https://developer.mozilla.org/en-US/docs/Web/API/HTMLIFrameElement/contentWindow. this might be the answer you are looking for. So basically here you try to access the DOM of your iframe. give it a try!
preview = getYourIframeDom();
code = getYourHtmlCodeHere();
preview.contentWindow.document.open("text/html","replace");
preview.contentWindow.document.write(code);
preview.contentWindow.document.close();
I'm trying to capture div#map-canvas from my site, www.RichBlocksPoorBlocks.com, to make an iframe that people can embed anywhere.
Here's my iframe
<iframe src="http://www.richblockspoorblocks.com#map-canvas" style="width:600px; height:400px;"></iframe>
It goes to div#map-canvas, but it also loads the rest of the page as well. I'd like that div to be the only thing in the iframe.
Is this possible with an iframe?
To achieve this, it would be easier to create a separate .php or .html document which contains only the parts that you want to show in the iframe and exclude everything else.
So, instead of the iframe pointing to "http://www.richblockspoorblocks.com#map-canvas", it would point to something like : "http://www.richblockspoorblocks.com/map-canvas.php".
This would be a very quick and efficient way of doing what you want, and doesn't require any outside libraries or javascript.
When you call http://www.richblockspoorblocks.com#map-canvas the hash will probably cause the browser to look for a corresponding <a name="foo">bar</a> so this won't work using an iFrame.
What I would recommend doing is writing a script which you call from your iFrame which accepts the name of the page fragment to load. I know using jQuery's $.load() you can call an element ID to load a page fragment, and I think it's also possible in PHP too...
You cannot use hash links in iframes.
You can and should use, few lines of you'r favorite server side language to create the specific content you want to render and then link to it. in that way, you'r server will send out to the end user only the desired data and also it saves bandwith and loading time.
I am new to html. I am trying to attached multiple html page on the server (in the memory) and send it back as one page to client (asp.net mvc 3) but my html source tags are mixing up with each other (resulting into wrong layout) if one of my html source content has not closed the tags properly and does something funny with its layout.
How can I do this such that each html content is displayed independent from other html contents one after each other?
EDIT: I should have mentioned that I have no control over the source html content that I need to attach together so it the source html is wrong, it will come to me wrong!
Short of having separate documents, fetched by separate HTTP requests all viewed in (i)frames — you can't.
Write code that doesn't output invalid HTML instead.
I am also new to html and have dealt with this kind of problem simply by changing my code editor. Try using one that highlights the start and the end of the html tag. Personally I use Komodo IDE or Notepad++.
I am writing a testing framework for my web app. The case is to test some AJAX methods. While there are some server side errors, the response of AJAX calling is a HTML document log. However, I would like to display the HTML document in the same testing page while the response received. I am afraid I cannot insert the HTML document into a div since it is not html snippet but a complete HTML document. Is there anyway to deal with the problem without server-side effort?
Besides, I have considered about iframe. However, it seems that it only could display a webpage by specifying the url.
Thanks in advance!
Edit
I tested Aaron's second solution. It surprised me that I could insert a complete HTML document into HTML document and keeps its styles.
You have two options:
Create an iframe and load the HTML document into it
Or locate the body element in the result and just add the content of that element to the div next to your test case.
The first one can cause problems with Cross Site Scripting (which you may or may not apply to your case). The second one means you have to merge the styles of the results into your test HTML document or it won't look as you want.
I have a web site that gets a new page every couple weeks, and that means I need to update the menu to have the new page in every single one. I'm wondering if there is a way to have an external text or .htm file that I can basically insert into the web page. That way I can put the menu in the external file and call it wherever I want it. So I only have to edit one thing when I get a new page.
Thanks in advance.
Edit: This is a drop-down menu with ul and li tags with an external style sheet for them. So this needs to work for that too. Thanks
Have a single HTML page like so:
<html>
<head></head>
<body>
HTML OF LINKS HERE
</body>
</html>
Then save it as my_links.html and into the page you want to insert it... do the following. Copy and paste the whole page and it as FILENAME.PHP and then use this code:
<?php include("my_links.html"); ?>
Congratulations, you have just used PHP! Learn more about the including pages here.
This is very easy and common to do on sites that use a server-side language behind them (PHP, ASP.NET, etc.)
If you don't want to use a server side language, than an <iframe> is your only option.
If you want to use HTML, and only html (no server side programming or javascript), you can use Server Side Includes embedded into your html files. Your web server may need to be configured to accept them.
If you are using server side include and you had navigation in a separated file, yes you can just edit things separate.
You can also do this using jQuery.
$('#elementid').load('page.html');
http://api.jquery.com/load/
But this will not be SEO friendly.
Also if someone has scripts turned off in their browser, then this will not work.