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03.30.2005 at 05:54PM PST, ID: 21370773
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7.4

document.form.field.addevent ("onblur",handler) question: how to cancel the event

Asked by tirandagan in JavaScript

Tags: ,

Here is something I have been racking my brains trying to solve:
I have created a custom event handler and attached it with the script mentioned below. I am expecting it to work similar to the way that a onblur element in a tag would work. So for example:

<input type="text" onblur="return myvalidationfunction(this)">

the function myvalidationfunction would return a true or false. If it returns a false, the blur event is cancelled and the user is forced to stay on the field.

However with the following code, the blur event is not cancelled. Notice I added the window.status to see whats happening, and I can see the event traps the proper field, but the "return false" does not abort the blur event and the cursor advances to the next field.

Any ideas how to solve this?

Here's my code for the custom event handler:

...
document.form.field.adevent ("onblur", myhandler)
document.form.field.adevent ("onfocus", myhandler)
document.form.field.adevent ("onsubmit", myhandler)
..

function myhandler (e) {
  var formObj = formProcessor.isMSIE ? window.event.srcElement : e.target;
  switch (e.type) {
    case "blur":
      window.status=="blur: " + formObj.name;
       if (formObj.name == "YEARS_IN_BUSINESS") {
           window.status="aborting blur"
           return false;
       }
      break;
   }
}

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Keywords: document.form.field.addevent ("…
Title
1 calling Sub from onBlur
2 onBlur Set Focus.
3 OnBlur function
4 onblur !!!
5 onfocus and onblur events on netscape
6 onBlur and Validation
 
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[+][-]03.30.2005 at 09:45PM PST, ID: 13668933

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[+][-]03.30.2005 at 10:57PM PST, ID: 13669250

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[+][-]03.31.2005 at 06:29AM PST, ID: 13671741

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[+][-]03.31.2005 at 06:42AM PST, ID: 13671857

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[+][-]03.31.2005 at 07:18AM PST, ID: 13672237

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[+][-]03.31.2005 at 07:32AM PST, ID: 13672381

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[+][-]03.31.2005 at 09:08AM PST, ID: 13673395

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About this solution

Zone: JavaScript
Tags: onblur, cancel
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Solution Provided By: ljo8877
Participating Experts: 2
Solution Grade: A
 
 
[+][-]03.31.2005 at 09:13AM PST, ID: 13673449

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[+][-]03.31.2005 at 10:33AM PST, ID: 13674213

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[+][-]03.31.2005 at 10:46AM PST, ID: 13674343

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