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scroll 2 frames together

Posted on 2004-03-25
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Last Modified: 2007-12-19
Is there a way I can force two side-by-side vertical frames to scroll together as one? So that when you move the scrollbar on the left frame, the right frame scrolls with it, and vice versa?
0
Comment
Question by:SweatCoder
7 Comments
 
LVL 1

Expert Comment

by:dynaweb
ID: 10683127
Yes, you can put those two frames (noscroll) inside one larger frame that allows scrolling.  That will make the two inside to scroll together :)
0
 
LVL 12

Assisted Solution

by:venkateshwarr
venkateshwarr earned 100 total points
ID: 10683134
you can do that using window.onscroll

<script language="JavaScript">

window.onscroll = scrollOtherFrame;
function scrollOtherFrame()
{
        if (navigator.appName == "Microsoft Internet Explorer")
      {
                              top.frame2.scrollTop =document.body.scrollTop;
            //alert("You've scrolled to " + document.body.scrollTop + " pixels.");
      }
      else{  
                        top.frame2.scrollTop = window.pageYOffset;
                        //alert ("You've scrolled to " + window.pageYOffset + " pixels.");
                }
       
}

</script>

venkat.
0
 
LVL 53

Expert Comment

by:COBOLdinosaur
ID: 10683163
Something like this:

<script type="text/javascript">
<!--
var x=0;
var y;
function alignF()
{
if (top.frames['xxxxxx'].alignF
{
if (self.pageYOffset) // all except Explorer
{
      y = top.frames['xxxxxx'].pageYOffset;
}
else if (document.documentElement && document.documentElement.scrollTop)
      // Explorer 6 Strict
{
      y = top.frames['xxxxxx'].document.documentElement.scrollTop;
}
else if (document.body) // all other Explorers
{
      y = top.frames['xxxxxx'].document.body.scrollTop;
}
}
setTimeout('alignF()',200);
}
onload=alignF;
//-->
</script>

Put it in the head of the pages and replace 'xxxxxxx' with the name of the other frame.

Cd&

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LVL 53

Accepted Solution

by:
COBOLdinosaur earned 400 total points
ID: 10683169
Oops I mised one line of code.... the scroll :^(

It should be:

Something like this:

<script type="text/javascript">
<!--
var x=0;
var y;
function alignF()
{
if (top.frames['xxxxxx'].alignF
{
if (self.pageYOffset) // all except Explorer
{
      y = top.frames['xxxxxx'].pageYOffset;
}
else if (document.documentElement && document.documentElement.scrollTop)
      // Explorer 6 Strict
{
      y = top.frames['xxxxxx'].document.documentElement.scrollTop;
}
else if (document.body) // all other Explorers
{
      y = top.frames['xxxxxx'].document.body.scrollTop;
}
}
scrollTo(x,y);
setTimeout('alignF()',200);
}
onload=alignF;
//-->
</script>

Cd&

0
 
LVL 11

Author Comment

by:SweatCoder
ID: 10683927
I tried both of your scripts, and neither of them worked. venkateshwarr, your script did nothing in my IE6 browser. cobol, your script was missing some parens and curly braces, so i fixed it up, and then tried various derivatives of your code. In 2 cases I got "not implemented" errors. In one case when I scrolled the left frame, it (left frame) went buggy and danced up and down, but the right frame never moved.

Sorry I didn't clarify--I am only interested in IE 5.5+ compatibility. My frame model is composed of 3 frames: PermsTop, PermsLeft, PermsRight.

When I scroll the left frame down, I need the right frame to scroll exactly with it, pixel-for-pixel. The 2 frames each have a table in which the row count always matches, so the vertical size of each frame is always identical, just FYI. I have to use 2 frames, can't combine into one, long story. Don't include any netscape stuff 'cause I won't need it.

Hope you can help. I've been on MSDN and tried some of the doScroll stuff, which also didn't work.
0
 
LVL 11

Author Comment

by:SweatCoder
ID: 10684088
this ended up being the perfect solution:

var var_deltaY = 0;
  function doIt(){
      deltaY = document.body.scrollTop
      if(deltaY != var_deltaY){
            top.PermsRight.scrollTo(0,deltaY);
            var_deltaY = deltaY
      }
  }

<BODY onScroll="setInterval('doIt()',1)">

you both got me thinking in the right direction. . .i found the script above online and had to tweak it a bit, but it works great.
0
 
LVL 11

Author Comment

by:SweatCoder
ID: 10684124
stop the presses, this is even better:

<BODY onScroll="top.PermsRight.scrollTo(0,document.body.scrollTop)">

that's it!!!! no extra javascript function required. that single line of code does EXACTLY what I needed, and elegantly too. this is an IE solution.
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