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Windows Script Host.  Automate IE to click on a link.

Posted on 2009-04-08
9
3,589 Views
Last Modified: 2013-12-08
I'm trying to automate some of my daily routine and came across "Windows Script Host".  I'm very new to wsh and I do not know its limits.  At the moment I have code that writes to a text box both user name and password then click the 'ok' to submit.  

The next step is, the page that appears after logging in I would like to trigger a click event on a hyperlink.  I've been at this for a day or two but I do not seem to be able to find a clear cut answer.
I'm going to leave a snippet of the HTML code that I want 'clicked' and also the code that I already have so far.  Please, show me how to click a hyper link using wsh.  (I would perfer javascript but vbscript is acceptable)(i'm using a windows 2003 box)
<A class="SIMainTabText" href="" onClick="onTabClick('reports',getForm(this)); return false;">Inv Sys Requests</a> 
 
ie = WScript.CreateObject("InternetExplorer.Application","ie_")
ie.Visible = true;
ie.Navigate("http://myurl.com");
for(;ie.ReadyState<4;);
ie.document.all.item("login").value = "username";
ie.document.all.item("password").value = "password";
ie.document.getElementById("Action").click();

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Question by:ButtonDownBobby
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9 Comments
 
LVL 75

Expert Comment

by:Michel Plungjan
ID: 24104521
I would guess you need to wait for readystate 4 again before you click the link
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Author Comment

by:ButtonDownBobby
ID: 24106615
I already do the rest of the test code is the following but i'm not sure how i can have a 'click' triggered for the anchor item rather than the button.  I mean the code is close enough but i'm all thumbs with this right now.  
for(;ie.ReadyState<4;);
 
// search field
HtmlElement search = ie.Document.Body.All["q"];
search.SetAttribute("value", "something to search");
// button to click
HtmlElement htmlButton = ie.Document.Body.All["btnG"];
// need the DOM version of the element
object domHtmlButton = htmlButton.DomElement;
// get the method information for the click event
System.Reflection.MethodInfo mi = domHtmlButton.GetType().GetMethod("click");
// invoke the method
mi.Invoke(domHtmlButton, new object[0]);

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Assisted Solution

by:Michel Plungjan
Michel Plungjan earned 150 total points
ID: 24106627
document.getElementsByTagName('a')
or document.links
would give you the arrays you need
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Author Comment

by:ButtonDownBobby
ID: 24111303
I'm still working on this but is there any way to call the "onClick="onTabClick('reports',getForm(this)); return false;""  function by itself?

I would like to just trigger the onClick event run the onTabClick and pass the given paramets...
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LVL 75

Expert Comment

by:Michel Plungjan
ID: 24114662
depends on what getForm needs from the object clicked
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Accepted Solution

by:
ButtonDownBobby earned 0 total points
ID: 24139386
I got it!!!  what i was looking for was the "fireEvent" method!!!
ie = WScript.CreateObject("InternetExplorer.Application","ie_")
ie.Visible = true;
ie.Navigate("http://myurl.com");
for(;ie.ReadyState<4;);
ie.document.all.item("login").value = "username";
ie.document.all.item("password").value = "password";
ie.document.getElementById("Action").click();
do{
	WScript.Sleep(200);
}
while (ie.busy);
 
links = ie.document.getElementById("tabs").getElementsByTagName("a");
 
for(var i = 0; i < links.length; i++) {
	if (links[i].innerText == "text in the anchor") {
		links[i].fireEvent("onClick");
		break;
	}
}

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Author Comment

by:ButtonDownBobby
ID: 24139500
It was a good start but, in the end there was more legwork done on my end looking for the solution.  I'll give you credit for helping with looking for the  getElementsByTagName.  Hopefully we can work together in the future if I run across any more javascript issues. :)  
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LVL 75

Expert Comment

by:Michel Plungjan
ID: 24140624
So in WSH It is not links[i].ciick() ??
Bizarre :)
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Author Comment

by:ButtonDownBobby
ID: 24157506
Yea, I was expecting links[i].click() to work but, fireEvent got it done...  You can check the code it runs fine and I'm running with this version until/unless I find something better.  Maybe the click method does work but i was using it wrong or had the wrong case...  ohh well the major thing is this worked out for me. :D

I'm now playing with DOMs and traversing children items now.  It's fun now that I can get past some of the rudimentary stuff.  I'm also looking into Microsoft's PowerShell as an alternate for WSH.  Having the ability to automate some of the more mundane routines is great!!!

Again thanks for the help.
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