Webmaster Forum / HTML, CSS, Scripts / JavaScript / August 2006

You mention control and postbacks, are you producing the page via asp ?

Javascript can validate data on the page, but if anything is to be done
on the server you have to resubmit/postback or use say ajax. Also if
the control is server side and you have a change etc event associated
with it, it will do a postback.

I am not sure i can help more without some html/javascript examples of
your problem tho.

rgds
Symeon.

You mention control and postbacks, are you producing the page via
asp.net ?

Javascript can validate data on the page, but if anything is to be done
on the server you have to resubmit/postback or use say ajax. Also if
the control is server side and you have a change etc event associated
with it, it will do a postback.

I am not sure i can help more without some html/javascript examples of
your problem tho.

rgds
Symeon.

Yes.  It sounds like you are doing a form validation, however on
invalid entry, you are failing to stop the form submission.  In that
case, you can do something like the following:

html:

<form onsubmit = "return validateForm(this)">
...your form elements...
<input type = "text" name = "userdate">
</form>

javascript:

function validateForm(myForm)
{
  /*your validation routine
     .
     .
     .
  */
  if(myForm.elements["userdate"] == "some_value")
  {
     return true;
  }

  return false; //for invalid entry return false, for valid entry
return true
}