Trouble using appendChild for document body in another frame

[ezmiller]

So I have some code that gets the body element of another frame and
then tries to
dynamically write a table. The code fails when, after creating the
table, I try to
append it to the document. I get an invalid argument error.

Here's the code....

var docBody =
top.frames[frameName].document.getEl ementsByTagName ("BODY")[0];
alert(docBody.t agName);
var t;
var r;
var c;

// Dynamically write out table and header row.
t = document.create Element("table" );
r = t.insertRow();
c = document.create Element("td");
c.appendChild(d ocument.createT extNode("Studen t Name"));
r.appendChild(c );
c = document.create Element("td");
c.appendChild(d ocument.createT extNode("Test#1 "));
r.appendChild(c );
c = document.create Element("td");
c.appendChild(d ocument.createT extNode("Test#2 "));
r.appendChild(c );
c = document.create Element("td");
c.appendChild(d ocument.createT extNode("Test#3 "));
r.appendChild(c );
c = document.create Element("td");
c.appendChild(d ocument.createT extNode("Test#4 "));
r.appendChild(c );
docBody.appendC hild(t);

[Martin Honnen]

ezmiller wrote:

var docBody =
top.frames[frameName].document.getEl ementsByTagName ("BODY")[0];

For a start try with
var frameDoc = top.frames[frameName].document;
if (frameDoc) {
var docBody = frameDoc.getEle mentsByTagName( "BODY")[0];
var t = frameDoc.create Element("table" );
// now make sure you use frameDoc.create Element/createTextNode
// to create any elements or text nodes
// supposed to be inserted in that frame
--

Martin Honnen
http://JavaScript.FAQTs.com/

[Thomas 'PointedEars' Lahn]

Martin Honnen wrote:

ezmiller wrote:

var docBody =
top.frames[frameName].document.getEl ementsByTagName ("BODY")[0];

For a start try with
var frameDoc = top.frames[frameName].document;
if (frameDoc) {
var docBody = frameDoc.getEle mentsByTagName( "BODY")[0];

HTMLDocument objects have a `body' property that refers to
a HTMLBodyElement object which in turn represents the
`body' element of the document. There is no need to use
HTMLDocument::g etElementsByTag Name() here.

<URL:http://www.w3.org/TR/DOM-Level-2-HTML/html.html#ID-26809268>
PointedEars

[Tony]

ezmiller wrote:

So I have some code that gets the body element of another frame and
then tries to
dynamically write a table. The code fails when, after creating the
table, I try to
append it to the document. I get an invalid argument error.

Have you tried a minimal test case? Start with ONLY one element, then
build up from there until it doesn't work.

I can't see offhand what's wrong with what you're doing, but I'll bet
that will help narrow it down.

var docBody =
top.frames[frameName].document.getEl ementsByTagName ("BODY")[0];
alert(docBody.t agName);

Why use getElementsByTa gName("BODY") - rather than just document.body ?
Maybe this is the problem?