Improve company productivity with a Business Account.Sign Up

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 443
  • Last Modified:

At least one checkbox selected.

Please take a look at the below functions.

Part of the validation script calls a function to test for checked checkboxes. These checkboxes are themselves dynamic and all is well so long as there are more than one checkbox. This is normally the case, however, on rare occasions there can be just one.

If this happens it always displayes the alert message even when that one checkbox has been selected.

And advice.

Kind regards

A
-----------------------------------------------
function isChecked(chks)
{
      var rval = false;
      for(var i=0; i<chks.length; i++)
      {
            if(chks[i].checked)
            {
                  rval = true;
                  break;
            }
      }
      return rval;
}

<!--  Part of the validation script -------------------

if(document.getElementById("selAccType").value == 1)
{
         if (!isChecked(document.form_Dyno["chk_MyStuID"]))
        {
       alert("Please select at least one option!");
       return false;
        }
}

Open in new window

0
Abiel de Groot
Asked:
Abiel de Groot
  • 3
  • 2
1 Solution
 
chaitu chaituCommented:
please post the html .
0
 
Abiel de GrootDeveloperAuthor Commented:
The button calls the validation script. "checkFormEntry()"

<input name="Submit" type="submit" class="ButGeneral" value="<%=PlaceText(185)%>" onclick="checkFormEntry()"/>

If all is well it submits the form. Part of the validation script checks the checkboxes.

if(document.getElementById("selAccType").value == 1)
{
         if (!isChecked(document.form_Dyno["chk_MyStuID"]))
        {
       alert("Please select at least one option!");
       return false;
        }
}
0
 
chaitu chaituCommented:
remove onclick function in input type submit and put that in form onSubmit.

<form onSubmit='return checkFormEntry()'>

<input name="Submit" type="submit" class="ButGeneral" value="<%=PlaceText(185)%>" />
0
Keep up with what's happening at Experts Exchange!

Sign up to receive Decoded, a new monthly digest with product updates, feature release info, continuing education opportunities, and more.

 
IronhoofsCommented:
If there is only one checkbox, document.form_Dyno["chk_MyStuID"] doesnt return an array of objects and chks.length will be undefined. A small change to isChecked() will fix this:

function isChecked(chks) {
      var rval = false;
      if (!chks.length) {
         rval = chks.checked;
      }
      else {
         for(var i=0; i<chks.length; i++)  {
            if(chks[i].checked)
            {
                  rval = true;
                  break;
            }
         }
      }
      return rval;
}

Open in new window

0
 
chaitu chaituCommented:
<script>
function isChecked(chks) {
      var rval = false;
	  alert(chks.length)
   
         for(var i=0; i<chks.length; i++)  {
            if(chks[i].checked)
            {
                  rval = true;
                  break;
            }
         }
      
	  
	  if(!rval)
	  {
	  alert("plz select one checkbox")
	  }
      return rval;
} 

</script>

<form>
<input type='checkbox' name='check' value='1'>
<input type='checkbox' name='check' value='2'>
<input type='checkbox' name='check' value='31'>
<input type='button' name=button value='submit' onclick='isChecked(document.getElementsByName("check") )'>
</form>

Open in new window

0
 
Abiel de GrootDeveloperAuthor Commented:
That did it.

Many thanks.

A.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

  • 3
  • 2
Tackle projects and never again get stuck behind a technical roadblock.
Join Now