Question

Javascript: populating fields in a child window

Asked by: barrylewin

I have an applicaiton in which I have two buttons which need to open the same child window.....but I need to know which button opened the child window

so button 1 = openChildWin("Rej")
and button2 = openChildWin("Cancel")

the function openChildWin uses the window.open(url, name, options)....so what I'd like to do is take the parameter coming in (eg "Rej" or "Cancel") and load that into a field on the child form......so when the child form is saved, I can use the "opener.document........to retrieve the value.

best regards
Barry

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Asked On
2008-11-03 at 11:02:30ID23871865
Topic

JavaScript

Participating Experts
1
Points
500
Comments
6

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Answers

 

by: lpxtechPosted on 2008-11-03 at 11:26:51ID: 22870051

Hi,

You can access the DOM of the child window by using name.document.

For example if you have an input field with the id="myInput"... See the code attached.

<script type="text/javascript">
  function OpenChildWin() {
    var wopts  = 'width=300,height=500,resizable=1,alwaysRaised=1,scrollbars=1';
    var childW = window.open('http://www.myurl.com/', 'childWin', wopts);
  }
  ChildWin.document.getElementById("myInput").value = "Hello...";
</script>

                                              
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by: barrylewinPosted on 2008-11-03 at 13:16:11ID: 22871212

I tried your code out, but the "myInput" field isn't getting populated with the value....once the child window is open, I do a view source and the field is blank....

in my code snippet, WebActiion is being passed into the function, and I"m trying to get it to be written to the child window

function openMsgWindow(WebAction ) { 
winURL = path + "Msg?OpenForm"; 
                     winName = "ChildWin"; 
                        winOpts = "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,width=500,height=200,screenX=200,screenY=200"; 
                 ChildWin = window.open( winURL, winName, winOpts ); 
                 ChildWin.document.getElementByID("WebAction").value = WebAction
}

                                              
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by: lpxtechPosted on 2008-11-03 at 13:45:20ID: 22871521

The values must be put in after the child window has finished loading.

Try the following code.

// Add to parent window:
 
function doneloading() {
        // Do what you want after the window has loaded.
	ChildWin.document.getElementById("myInput").value = 'Test...';
}
 
// Add to child window:
 
<script type="text/javascript">
	window.onload = function() {
		window.opener.doneloading();
	}
</script>

                                              
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by: barrylewinPosted on 2008-11-03 at 14:02:58ID: 22871698

I think your last solution has a logic error....I'm trying to load the field in the child win with a VARIABLE that gets passed into the "openMsgWindow" function....

so the "doneloading" function isn't going to know which value to load

how about this idea?
in the main forms' button....I save the field on the main form
then use your idea of in the onload of the child window, go get the main form's field

thanks for your help
barry

 

by: lpxtechPosted on 2008-11-03 at 14:07:04ID: 22871733

Yes, that should work if I understand what your saying,

You want to create a global variable in the parent, var myVar; then set that variable in the open window function and set the field values in the doneloading function correct?

If so, that should be fine. Either way, you will have to execute any code you want on the child window in the doneloading function

 

by: barrylewinPosted on 2008-11-03 at 14:13:07ID: 22871785

got it to work...thanks alot for your help..

best regards
barry

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