Iframe adaptive height and width based on content

Last Update:2017-01-13 Source: Internet

Author: User

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Iframe, especially Iframe without borders, is possible to update part of the page data without refreshing a new page because it can be seamlessly integrated with the webpage, however, the size of the Iframe is not as flexible as that of the layer, which makes it difficult to use. It is even worse to set the height of the Iframe.

JS get height

We can write the following functions and return the height of the Iframe framework.

Function SetCwinHeight (){
Var cwin = document. getElementById ("cwin ");
If (document. getElementById ){
If (cwin &&! Window. opera ){
If (cwin. contentDocument & cwin. contentDocument. body. offsetHeight)
Cwin. height = cwin. contentDocument. body. offsetHeight;
Else if (cwin. Document & cwin. Document. body. scrollHeight)
Cwin. height = cwin. Document. body. scrollHeight;
}
}
}
The final addition of Iframe cannot discard the Onload attribute. Of course, the ID must also be matched by the Cwin in the function.

<Iframe width = "778" align = "center" height = "200" id = "cwin" name = "cwin" onload = "Javascript: SetCwinHeight () "frameborder =" 0 "scrolling =" no "> </iframe>
Height of computing volume removal

Assume that our sub-page also has the following code on the page that is imported into the framework, and the name of this page is temp.html.

<Body onLoad = "parent. setSize (getSize ()">
<Table width = "100" height = "660" bgcolor = "# FFCC66">
<Tr>
<Td> </td>
</Tr>
</Table>
<Div id = "PageEnd" style = "position: relative"> </div>
<Script>
Function getSize (){
Return document. getElementById ("PageEnd"). offsetTop
}
</Script>
</Body>
We can write this on the home page.

<Script language = "JavaScript" type = "text/JavaScript">
Function setSize (theHeight ){
Document. all. ifrm. height = theHeight + 12;
}
</Script>
<Iframe id = "ifrm" width = "100%" height = "0px" scrolling = "no" src = "temp.htm"> </iframe>
Adaptive height

Assume that the page contains the iframe code as follows:

<Iframe id = "test" name = "test" frameborder = 0 scrolling = no src = "/u/1463420203" width = "100%" height = 0> </iframe>
Method 1

Add

<Script for = window event = onload language = "jscript">
Document. all ("test" 2.16.height1_test.doc ument. body. scrollheight;
</Script>
Adaptive width is similar to adding

Document. all ("test" 2.16.width+test.doc ument. body. scrollwidth;
Method 2

Create a bottom. js file and enter the following code (there are only two lines)

Parent.doc ument. all ("framework ID name"). style. height = document. body. scrollHeight;
Parent.doc ument. all ("framework ID name"). style. width = document. body. scrollWidth;
The framework ID here is the Iframe ID, for example:

<Iframe id = "framework ID name" name = "left" frameBorder = 0 scrolling = no src = "demo. asp" width = "100%"> </iframe>
Add all included files to your website

<Script language = "JavaScript" src = "bottom. js"/> </script>
Iframe adaptive height

Enter the list of iframe names that you want to automatically adjust the height based on the page height, and separate the IDs of each iframe with commas, for example, ["myframe1", "myframe2"], you can use only one form without a comma.

// Define the iframe ID
Var iframeids = ["content"]

// If your browser does not support iframe, whether to hide iframe: yes, no
Var iframehide = "yes"

Function dyniframesize (){
Var dyniframe = new Array ()
For (I = 0; I <iframeids. length; I ++ ){
If (document. getElementByIdx_x ){
// Automatically adjust the iframe height
Dyniframe [dyniframe. length] = document. getElementByIdx_x (iframeids [I]);
If (dyniframe [I] &! Window. opera ){
Dyniframe [I]. style. display = "block"
If (dyniframe [I]. contentDocument & dyniframe [I]. contentDocument. body. offsetHeight) // if your browser is NetScape
Dyniframe [I]. height = dyniframe [I]. contentDocument. body. offsetHeight;
Else if (dyniframe [I]. Document & dyniframe [I]. Document. body. scrollHeight) // if your browser is IE
Dyniframe [I]. height = dyniframe [I]. Document. body. scrollHeight;
            }
        }
// Display the browser that does not support iframe based on the set parameters
If (document. all | document. getElementByIdx_x) & iframehide = "no "){
Var tempobj = document. all? Document. all [iframeids [I]: document. getElementByIdx_x (iframeids [I])
Tempobj. style. display = "block"
        }
    }
}

If (window. addEventListener)
Window. addEventListener ("load", dyniframesize, false)
Else if (window. attachEvent)
Window. attachEvent ("onload", dyniframesize)
Else
Window. onload = dyniframesize

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

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Iframe adaptive height and width based on content

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