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Can my form Validation be improved 3

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Scorez2000

Scorez2000

Programmer
Feb 5, 2004
87
GB
Hi all.

The method of form validation I use is client-side vbscript within my ASP application. Within the form, instead of having a submit button, I have a normal button. Then there's a vbscript that runs when the button is clicked.

This all runs fine and works exactly how I want except for one thing. Within a normal HTML form, the user can submit the form from any field by pressing enter. However, my code will not work unless the button is actually clicked.

Is there a way of making the form act like a normal web form (i.e. submit when the user presses enter).

Here is a sample of my code.
-----------------------------------------------------------
<html>
<head>
<script language="vbscript">

Sub btnSubmit_OnClick()
if requestleave.leavetype.value = "0" then
Alert "Please select the type of leave applied for."
Exit Sub
elseif isdate(requestleave.rlFirst.value) = false then
Alert "Please enter a valid date for the first day of leave."
requestleave.rlFirst.focus
Exit Sub
elseif isdate(requestleave.rlLast.value) = false then
Alert "Please enter a valid date for the last day of leave."
requestleave.rlLast.focus
Exit Sub
elseif cdate(requestleave.rlFirst.value) > cdate(requestleave.rlLast.value) then
Alert "The last day of leave must be after or the same as the first day of leave."
Exit Sub
elseif cdate(requestleave.rlFirst.value) = cdate(requestleave.rlLast.value) and requestleave.cblast.checked = True then
Alert "When booking a half day, only use the upper tickbox for selecting a half day"
Exit Sub
End If

if cdate(requestleave.rlFirst.value) <=date() then
btnSubmitClicked = MsgBox ("This leave request is in the past. Are you sure you want to continue?", VBYesNo, "Please Confirm")
If btnSubmitClicked = 6 then
Call requestleave.Submit()
end if
else
Call requestleave.Submit()
end if
End Sub

</script>
</head>
<body>
<h3>Leave Request</h3>
<table>
<form name="RequestLeave" id="RequestLeave" method="post" action="requestLeavedetails.asp">
<tr>
<td colspan="3"><b>Type Of Leave Applied for:</b></td>
<td colspan="4" align="right">
<select name="leavetype" id="leavetype">
<option value="0"></option>
<%
Set rsLeaveType = Conn.Execute("SELECT AbsenceType.AbsenceTypeID, AbsenceType.AbsenceType FROM AbsenceType WHERE (((AbsenceType.AbsenceType)=""Holiday"")) OR (((AbsenceType.AbsenceType)=""Special Leave"")) ORDER BY AbsenceType.AbsenceType;")
while rsLeaveType.EOF = "False"
Response.Write("<option value=""" & rsLeaveType("AbsenceTypeID") & """>" & rsLeaveType("AbsenceType") & "</option>")
rsLeaveType.movenext
wend
%>
</select>
</td>
</tr>
<tr>
<td colspan="6" align="center" style="font-size:xx-small">Use the tick boxes to mark the first or last day as half days. Then use the drop down to choose AM/PM for that day. If only one day is being taken, use the top box and dropdown.</td>
</tr>
<tr>
<td>Date:
<td><input id="rlFirst" name="rlFirst" size="7" maxlength="10"></td>
<td><input type="checkbox" id="cbFirst" name="cbFirst"></td>
<td>
<select name="ampmFirst" id="ampmFirst">
<option>AM</option>
<option>PM</option>
</select>
</td>
<tr>
<td>Date:
<td><input id="rlLast" name="rlLast" size="7" maxlength="10"></td>
<td><input type="checkbox" id="cbLast" name="cbLast">
<td>
<select name="ampmLast" id="ampmLast">
<option>AM</option>
<option>PM</option>
</select>
</td>
</tr>
<tr>
<td colspan="7" align="right"><input type="button" value="Next..." id="btnSubmit" name="btnSubmit"></td>
</tr>
</form>
</table>
</body>
</html>
 
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sheco? is the alert bos "pure" vbs...not being a sa...just wondering if msgBox is the purer
 
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huh? sorry I was in a meeting for the last hour or so, did I miss something?
 
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scorez,

as you can see it's not much diferent than vbs...see if this works in mozilla/firefox....did on-the-fly...so sheco...if you see a typo/error..please point out..thanks

Code: 
<html>
<head>
<title></title>
<style type="text/css">
body{font-family:verdana}
table{font-family:verdana;font-size:xx-small}
th{background-color:#999999}
</style>
<script language="javascript">

function ValidateForm(form)
{
   if(document.tstFrm.tstNam.value == "" )
   { 
      alert('You have not entered a name') 
      document.tstFrm.tstNam.focus(); 
      return false; 
   } 

if(document.tstFrm.tstDob.value == "" )
   { 
      alert('You have not entered a DOB') 
      document.tstFrm.tstDob.focus(); 
      return false; 
}

if(document.tstFrm.tstNat.selectedIndex == "" )
   { 
      alert('You have not entered a nationality') 
      document.tstFrm.tstNat.focus(); 
      return false; 
   } 
   
 
 
 
return true;
 
} 

</script>

</head>
<body>
<p>This Is My Test Form.</p>
<table>
<form name="tstFrm" id="tstFrm" method="post" action="testpost.asp" onsubmit="javascript:return ValidateForm()">
<tr>
  <th>Name</th>
  <th>D.O.B.</th>
  <th>Nationality</th>
</tr>
<tr>
  <td><input name="tstNam" id="tstNam"></td>
  <td><input name="tstDob" id="tstDob"></td>
  <td><select name="tstNat" id="tstNat"><option value="0"></option><option value="1">British</option><option value="2">Irish</option></select></td>
</tr>
<tr>
  <td colspan="3" align="right"><input type="submit" Value="Submit" name="tstSubmit" id="tstSubmit" onClick="CheckForm();"></td>
</tr>
</form>
</table>
</body>
</html>
 
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BSL, I'll give you a star because I think you deserve it after all that ! ;-)

Just a small additional comment:

As it is really helpful if the user is told about all of their errors in one go - rather than correcting one mistake at a time in the form, you could use something like this:

Code: 
function validateForm()
{
  var iErrCount = 0;
  var sErrText = '';

  if(document.tstFrm.tstNat.selectedIndex == "" )
  {
    //First increment the error counter so that we know there is an error.
    iErrCount++;
    //Then write some meaningful text
    sErrText += '\n' + iErrCount + '. You have not entered a nationality');
    //Then set the form input box background to red to show which field is in error... 
    //You could make this more aesthetically pleasing and just do the border, or the field name text or whatever takes your fancy.
    document.tstFrm.tstNat.style.background = '#ff0000';
  } 

   if(document.tstFrm.tstNam.value == "" )
   {
     iErrCount++;
     sErrText += '\n' + iErrCount + '. You have not entered a name');
    document.tstFrm.tstNam.style.background = '#ff0000';
   }

   if(document.tstFrm.tstDob.value == "" )
   {
      iErrCount++;
      sErrText += '\n' + iErrCount + '. You have not entered a DOB');
      document.tstFrm.tstFrm.style.background = '#ff0000';
   }

   if (iErrCount > 0 ) 
   {
      alert('There were ' + iErrCount + ' errors with the data you submitted:\n\n' + sErrText + '\n');
      return false;
   } else {
      if (confirm('Are you sure you want to submit this form?'))
      {
           return true;
      } else {
           return false;
      }
   }
}

I would also suggest that you build yourself a standard set of functions in whatever language you decide upon to validate certain conditions, then call upon this library when processing a form. Saves a lot of time and keeps your code clean.

Also, validate it again on the server - just because you used your web page to post the data to the server doesn't mean nasty hackers will be so thoughtful. I validate on both - on the client side for user experience and on the server side just to be safe.

Good luck.. !

Damian

A smile is worth a thousand kind words. So smile, it's easy! :)
 
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sweeeet......dang another one in the goodie bag damber....keep them coming! ;-) btw thanks for the star....i was teasing sheco because he types faster than me..lol...anyways i def can use this!! so one on the way and thanks for the advice

Brian
 
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I would do it in pure ASP, then no matter what it works even if JS is turned off.

Site San Diego www.sitesd.com

 
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