leave event of text box in asp.net

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hi all

i have three text boxes.third text box is read only.Now i want when user enter a value in second text box then a leave event is fired and the total of two text boxes(first and second) is get in third readonly text boxes

actually i want to invoke leave event of third text box and get total using java script .
how to implement using javscript

Posted 27-Jun-10 18:43pm

sharmarun

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Brij · Answer 1 · 2010-06-27T19:16:00

Solution 1

You can implement leave event as you are saying with the help of onblur event. Attach onblur event of your second textbox, now when user leaves second textbox, onblur event event will be fired and you can do ehatever you on this event as per your requirement.

see example of onblur event:
Link 1[^]
Link 2[^]

Posted 27-Jun-10 19:16pm

Brij

Updated 27-Jun-10 20:06pm

v2

Comments

Sandeep Mewara 28-Jun-10 2:06am

Formatted your answer. Removed pre tags and made links look proper

Brij 28-Jun-10 2:32am

Thanks Sandeep:).

kvenkatesh007 · Answer 2 · 2011-02-04T00:05:00

Solution 3

Textbox TextChanged is not firing.even though i gave Autopostback='True"

Posted 4-Feb-11 0:05am

kvenkatesh007

amolnikam · Answer 3 · 2014-04-29T03:18:00

you can do like

HTML

<html>
<head>
<script>
function myFunction()
{
var val1=document.getElementById("txtid1");
var val2=document.getElementById("txtid2");
var total="";
if(!isNaN(val1 ) && !isNaN(val2)){
total=val1+val2;
('txtid3').html(total);
}
}
</script>
</head>
<body>

<p>A function is triggered when the user is pressing a key in the input field.</p>

<input type="text" onkeypress="myFunction()">

</body>
</html>