Thread: date validation

Hi,

I have a textbox called insexpdate

I want the user to enter valid date format in mm/dd/yyyy format only

I call the function onblur event

Code:

function callinsexpdate()
{
var re = /^\d{1,2}\/\d{1,2}\/\d{4}$/; 
alert(re);
  if((document.frm1.insexpdate.value == "") && (!document.frm1.insexpdate.value.match(re)))
  { 
	  alert("Invalid date format"); 
	
	  return false;
  }



}

but the code is not working

any idea

todd

@jmh - that will work, but how do you know it's a correct date? It's more complicated than that
I could just type in 2/31/0000 and it will validate

In my opinion, giving users the ability to type in a date is a bad idea as they will make mistakes from time to time.

Rather than doing the validation this way, why don't you use a calendar picker.
There are plenty out there on the net.
Make sure the textbox holding the value is readonly

Then on the serverside, you can validate that it's a correct date (this because you just can't trust users)

Besides, it's a good programming practice to always validate input on the server.