Delphi WebBrowser fails javascript exec...but IE works

Question

0.00/5 (No votes)

See more:

Hi,

I'm implementing an application which navigate on a website, using Delphi Twebbrowser object: as final step, there's a link to click. The event associated with the link is my nightmare, because:

- if I try to fire the event (parentWindow.ExecScript) or to click on the link, I get
an error: something like "the object is null"...if I select to continue the excecution, nothing happens.

- While...if I don't click on the link by code, and I do it with the mouse click, the script open a new window and it works fine.

I also wrote an handler for "OnNewWindow2": if I click on the link with mouse, the event fires...but by code, it sleeps...

Is there someone can help me? PLEASE HELP ME!

Thanks a lot...I hope you understand my poor english...

Posted 7-Oct-12 23:28pm

fRenatoNapoli

Add a Solution

4 solutions

Solution 1

You need to check if the link is an actual url, or if it is a javascript link.

First check out this link, describing how to determine what kind of link needs to be handled.
http://stackoverflow.com/questions/11556943/opening-twebbrowser-link-in-default-browser[^]

Here some extra info on executing javascript:
http://www.delphidabbler.com/articles?article=21[^]

The most important is the first, because I think you are now executing an actual link as javascript.

If you need more help, please edit this question and add some code.

Good luck!

Posted 7-Oct-12 23:50pm

E.F. Nijboer

Comments

fRenatoNapoli 8-Oct-12 8:42am

I've got news: if I try this code
Application.ProcessMessages;
(allLinks.Item(63,'') as IHTMLElement).click; //Javascript Excel Link
I get another type of error (Sys.InvalidOperationException: the report or page is being updated. Please wait for the current action to complete)...
While without Application.ProcessMessages, the error is "object is null"...
So I think I've to wait before click on the link...but how to do it?
Thanks, please help me...

Solution 2

Hi, thanks for your answer...but I'm still living my nightmare :-)

The link is a javascript link, this is the code:

Excel

Please help me! :-)

Posted 8-Oct-12 0:09am

fRenatoNapoli

Solution 3

Sorry, the code between tag is:

""onclick="$find('p_lt_WebPartZone6_zoneContent_pageplaceholder_pageplaceholder_lt_zoneCenter_pageplaceholder_pageplaceholder_lt_WebPartZone1_zoneContent_StatementOfAccount_ctl16').exportReport('EXCELOPENXML');" href="javascript:void(0)" style="color:#3366CC;font-family:Verdana;font-size:8pt;padding:3px 8px 3px 8px;display:block;white-space:nowrap;text-decoration:none;">Excel""

Posted 8-Oct-12 0:19am

fRenatoNapoli

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

fRenatoNapoli · Accepted Answer · 2012-10-08T05:50:00

Solution 4

Well... Finally I got my Excel document...

The code didn't work due page wasn't completly downloaded yet: I'have fired a "onDownloadComplete" in the point of code where I was clicking. In "onDownloadComplete", I do use link.click and it works fine...

Thank you, see you soon :-)

Posted 8-Oct-12 5:50am

fRenatoNapoli