Dear Friends,
I've a form with some fields to be cheked.

I've a page to check the fields and then if all are ok then update or write a file.

My problem is that when a field is wrong I would like to display the form page with a message near the field wrong and the value into the rest without retype all the value.

I can do all the thing except to have the fields filled. 

Please Help.

Thanks Michael,
but  How to do a postbak ?

Bye

What I'm using now is exactly response.redirect whith the error code.
I can pass back the error type like 1 is wrong name 2 Insert code 3 .... Etc. But if I wont to allow the user to don't retype all the infoemation I dont wont to have a response.redirect 1Km long.

Do you know another way ?

Bye.

Well have the form again on the validation page with the values submitted loaded in the form again

Why not do it all in the original page - use javascript to validate the form. If validation fails, then display (alert) a message. If it passes, then submit the form.

I don't like alert in javascript.
I would like to display a red message near the wrong field.

You could do something else with javascript.....

Change the background color of all form elements that are incorrect/incomplete.

Place somekind of image/message next to each element and set the visibility property to hidden. When you run the validation script, change the visibility to visible on all elements that fail.

This would be a lot easier and economical than validating on a different page - especially if you're going to redirect back when validation fails.

Could you give me an example with explanation in changing colors etc.

I've some data field, numeric and text.

Thanks a lot

Here you go.....
Basically there are 2 inputs on the form which are validated (one to see if anything has been entered and the other to check if a number > 0 has been entered).

Hope this helps

<script language="Javascript">
function ValidateForm()
{
 document.myForm.ErrCheck.value = "";
 ErrMsg = 'ERROR - Incomplete Data' + '\n' + '\n';
 if (document.myForm.txtA.value == "")
  {
  ErrMsg = ErrMsg + 'You need to specify your name.' + '\n';
  document.copyrequest.ErrCheck.value = "Error";
  document.copyrequest.FileName.style.backgroundColor='#ff0000';
  }

 if (isNaN(document.myForm.intB.value) || document.myForm.intB.value < 1)
  {
  ErrMsg = ErrMsg + 'You need to specify your age.' + '\n';
  document.myForm.ErrCheck.value = "Error";
  }

 if (document.copyrequest.ErrCheck.value == "Error")
   {
   alert(ErrMsg);
   }
 else
 {
  document.copyrequest.submit();
 }
}
</script>

<form name="myForm" action="page.asp" method=-"post">
<input name="ErrCheck" type="hidden">
Name: <input name="txtA" type="text">
Age (Years): <input name="intB" type="text">
</form>

<input type="button" value="Valid" onClick="ValidateForm()">

Gary wrote: You could do something else with javascript..... Change the background color of all form elements that are incorrect/incomplete. Place somekind of image/message next to each element and set the visibility property to hidden. When you run the validation script, change the visibility to visible on all elements that fail. This would be a lot easier and economical than validating on a different page - especially if you're going to redirect back when validation fails.

If this is any sort of serious site, I wouldn't rely on client-side validation. It can be circumvented quite easily.

Client-side validation is for the 'cosmetic benefit' of your users. A complete server-side validation process should always be performed, irrespective of whether you use client-side validation or not.

http://www.adopenstatic.com/resources/code/UIValidation.asp - http://www.adopenstatic.com/resources/code/UIValidation.asp

Cheers,
Andrew

Thank you vary much Gary.

I will  try immediately