spacer
Yehuda Shiran August 26, 2001
Passing a String to the Dialog Box
Tips: August 2001

Yehuda Shiran, Ph.D.
Doc JavaScript

Developer News
News Flash: Adobe Has iPhone Workaround
Adobe's Flash 10.1 Goes Mobile (Minus iPhone)
A Salute to Visionary CEOs

The second argument of the functions showModalDialog() and showModelessDialog() can be used to pass parameters by value from the caller to the callee. Passing by value means that the callee cannot change the argument passed to it by the caller, because it is the argument's value that is being passed, not its address. The argument can be of any type: scalar, array, string, object, etc. Let's take a look at a simple example. Pop up a dialog box with this statement:

window.showModelessDialog('010826a.html','Doc JavaScript');
The page 010826a.html includes some text and the following script:

<SCRIPT LANGUAGE="JavaScript">
<!--
  alert(dialogArguments);
// -->
</SCRIPT>

The window object property dialogArguments is set to the second parameter passed by showModelessDialog(). We passed the string "Doc JavaScript", and indeed the alert box in 010826a.html pops up this string. Try displaying 010826a.html by itself, and you'll get an undefined parameter error (dialogArguments).

For more on modal and modeless dialog boxes, go to Column 90, Modal and Modeless Dialog Boxes.


People who read this tip also read these tips:

Look for similar tips by subject:

internet.commediabistro.comJusttechjobs.comGraphics.com

Search:

WebMediaBrands Corporate Info

Legal Notices, Licensing, Reprints, Permissions, Privacy Policy.
Advertise | Newsletters | Shopping | E-mail Offers | Freelance Jobs

webref The latest from WebReference.com Browse >
Building a Banking Application Home Page with OOP · Mixing Scripting Languages · Review: phpFox, a Social Networking CMS with all the Bells and Whistles
Sitemap · Experts · Tools · Services · Email a Colleague · Contact FREE Newsletters 
 The latest from internet.com
Enterprise 2.0: Social Networking in the Cloud · BroadSoft Marketplace Hastens Pace of Telephony Innovation · Review: HTC Hero for Sprint