With iframe, offsetLeft of IHTMLElement is bigger than expected.   

Hello, Happy new year~

I must get location of element on web page.

I typed below to get offsetLeft of element.

// m_SelectedElem is declared as IHTMLElement

                    int nLeft = 0;
                    int nTop = 0;

                    nLeft = m_SelectedElem.offsetLeft;
                    nTop = m_SelectedElem.offsetTop;

                    Console.WriteLine("{0} {1}", nLeft, nTop);

                    IHTMLElement l_tmpElem =
m_SelectedElem.offsetParent;

                    while (l_tmpElem != null)
                    {
                        nLeft += l_tmpElem.offsetLeft;
                        nTop += l_tmpElem.offsetTop;
                        Console.WriteLine("{0} {1}", nLeft, nTop);
                        l_tmpElem = l_tmpElem.offsetParent;
                    }

Generally, nLeft and nTop might get almost correct value after
expending web browser as proper size.
By the way, sometimes in the case element include iframe, that value
might be bigger than I expected.
I don't know why that value is different.
Have you ever got this situation before, have any solution?

Best regards.

date: Wed, 2 Jan 2008 01:20:34 -0800 (PST)   author:   Diainwater

Re: With iframe, offsetLeft of IHTMLElement is bigger than expected.   

Diainwater  wrote:
> I must get location of element on web page.

See if this helps:

http://groups.google.com/group/microsoft.public.inetsdk.programming.webbrowser_ctl/browse_frm/thread/f74426178c365051

-- 
With best wishes,
    Igor Tandetnik

With sufficient thrust, pigs fly just fine. However, this is not 
necessarily a good idea. It is hard to be sure where they are going to 
land, and it could be dangerous sitting under them as they fly 
overhead. -- RFC 1925

date: Wed, 2 Jan 2008 11:30:45 -0500   author:   Igor Tandetnik