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Use the scroll method of iframe window to control iframe Page scrolling
How to Control embedded iframe scrolling in pages? The method is to use the scroll method of iframe window. You can refer to the following example.
How to Control embedded iframe scrolling in pages? The method is to use the scroll method of iframe window:
1. Get the window object of iframe
Var iwin = document. getElementById ('iframe1'). contentWindow;
2. Get the window document Object of iframe
Var doc = iwin.doc ument;
3. Call the scroll method of the iframe window object
Iwin. scroll (0, doc. body. scrollHeight );
Scroll has two parameters: x and Y-axis.
Doc. body. scrollHeight is the height of the iframe page (including undisplayed parts)
An example of a comprehensive application is as follows:
The Code is as follows:
<Html>
<Head>
<Meta http-equiv = "Content-Type" content = "text/html; charset = gb2312">
<Title> hover test </title>
<Style type = "text/css">
Ul {
Background-color: # ff00ff;
Display: block;
}
. Toc li {
Position: relative; width: 10em;
Background-color: #00ff00;
Display: block;
}
Li {
/* Display: block; * // * if it is displayed in block mode, the entire space of the parent element is occupied */
Background-color: # 0000ff;
}/* Must make a block-level element */
Li a I {
Display: none;
}
Li a: hover {
Text-align: left;
}/* The code added here is only for IE6 display. There is no special function, except text-decoration, color, and z-index */
. Toc li a: hover I {
Display: block;
Width: 6em;
Position: absolute;
Top: 0;
Left: 100%;/* here 100% refers to the width relative to the element li */
Margin:-1em 0 0 0em;
Padding: 1em;
Background: # cde;
Border: 1px solid red;
Text-align: left;
Z-index: 10000;
}
</Style>
</Head>
<Body>
<Iframe id = "iframe1" src = "" width = "400" height = "300"> </iframe>
Html code
<Ul class = "toc" id = "toc">
<Li> <a href = "1.html"> Chapter 1 <I> In which a dragon is seen </I> </a> </li>
<Li> <a href = "2.html"> Chapter 1 <I> In which a knight is summoned </I> </a> </li>
<Li> <a href = "3.html"> Chapter 1 <I> In which a proncess is disappointed </I> </a> </li>
<Li> <a href = "4.html"> Chapter 1 <I> In which a dragon is seen </I> </a> </li>
<Li> <a href = "5.html"> Chapter 1 <I> In which a dragon is seen </I> </a> </li>
<Li> <a href = "6.html"> Chapter 1 <I> In which a dragon is seen </I> </a> </li>
<Li> <a href = "7.html"> Chapter 1 <I> In which a dragon is seen </I> </a> </li>
</Ul>
<Script language = "javascript">
Function getElementAbsPos (e ){
Var t = e. offsetTop;
Var l = e. offsetLeft;
While (e = e. offsetParent ){
T + = e. offsetTop;
L + = e. offsetLeft;
}
Return {left: l, top: t };
}
Function getPosition (obj ){
Var left = 0;
Var top = 0;
While (obj! = Document. body ){
Left = obj. offsetLeft;
Top = obj. offsetTop;
Obj = obj. offsetParent;
}
Return left;
}
Var lis = document. getElementsByTagName ('lil ');
Var iwin = document. getElementById ('iframe1'). contentWindow;
Var doc = iwin.doc ument;
For (var I = 0; I <lis. length; I ++ ){
Lis [I]. onmouseover = function (){
Var obji = this. childNodes [0]. childNodes [1];
Doc. writeln ('<br>' + obji. innerText + ',' + getElementAbsPos (document. getElementById ('toc '). left );
Doc. writeln ('<br>' + obji. offsetLeft + ',' + getElementAbsPos (obji ). left + ',' + obji. offsetWidth + ',' + obji. style. left );
Doc. writeln ('<br> <B>' + doc. body. scrollHeight + '</B> ')
Iwin. scroll (0, doc. body. scrollHeight );
// Iwin. scrollTo (10000); // invalid
}
}
</Script>
</Body>
</Html>
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