CODEWITHSUNDEEP
javascript
Peter
Peter

Reputation: 155

check textbox's content has changed

In my form, I have 2 textbox (txtDate, txtTime), 1 hidden textbox (txtDateTime) and Save button. I want value of txtDateTime = txtDate + txtTime and it will automatically change value if user change at txtDate or txtTime.

How can I achieve this ? if you know, pls suggest me. Thanks

Upvotes: 0

Views: 1556

Answers (2)

Sarfraz
Sarfraz

Reputation: 382666

You can use onchange event like this:

var ttime = document.getElementById('txtTime');
var tdate = document.getElementById('txtDate');
var tdt = document.getElementById('txtDateTime');

ttime.onchange = function(){
  tdt.value = tdate.value + ttime.value;
};

tdate.onchange = function(){
  tdt.value = tdate.value + ttime.value;
};

Make sure to assign id attribute to your text boxes eg txtTime, txtDate and txtDateTime

Upvotes: 1

anselm
anselm

Reputation: 13661

Use onchange

<input type='text' onchange='change()' />

function change() {
    //code
}

Upvotes: 0

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