Multiple check box validation

45 New Member

hi,

Expand|Select|Wrap|Line Numbers

 
var len=document.form.check.length

flag=false;

for(i=0;i<len;i++)

{

if(document.form.check[i].checked==true)

{

flag=true;

break;

}

}

if(flag==false)

{

alert(select atlest one)

}

my error is object is required

Feb 25 '08 #1

Subscribe Reply

3315

shanmugamit

New Member

hi,my error is object is required.please any one help for a problem.....

Expand|Select|Wrap|Line Numbers

 
var len=document.form.check.length

flag=false;

for(i=0;i<len;i++)

{

if(document.form.check[i].checked==true)

{

flag=true;

break;

}

}

if(flag==false)

{

alert(select atlest one)

}

Feb 25 '08 #2

vee10

141

New Member

Hi ,

once check whether "form" is the id of the form and check is the id of the checkbox because i am not getting error and this code is fine

Expand|Select|Wrap|Line Numbers

var len=document.form.check.length

flag=false;

for(i=0;i<len;i++)

{

if(document.form.check[i].checked==true)

{

flag=true;

break;

}

}

if(flag==false)

{

alert(select atlest one)

}

Feb 25 '08 #3

acoder

16,027

Recognized Expert Moderator MVP

Expand|Select|Wrap|Line Numbers

alert(select atlest one)

alert('select at least one') - it should be a string.

Feb 25 '08 #4

shanmugamit

New Member

i have mutiple check box value error object required.......

Expand|Select|Wrap|Line Numbers

 
aa

<script type="text/javascript">

function fnallocate()

{

var len=document.form.selcie.length

flag=false;

for(i=0;i<len;i++)

{

if(document.form.selcie[i].checked==true)

{

flag=true;

break;

}

}

if(flag==false)

{

alert("select atlest one");

}

</script>

<body>

<form action="checkbox.php" name="form" method="post">

<?

 $res=mysql_query("select * from cie where des='Resource Pipeline Associate' order by name");

$j=0;

        $norow=mysql_num_rows($res);

        $flag=false;

    while($td=mysql_fetch_array($res))

    {

                for($i=0;$i<count($can);$i++)
 
            {    

                    if("$td[1]"=="$can[$i]")

                    {

                        $flag=true;

                        $i=count($can);

                    }

                    else

                    {

                    $flag=false;

                    }

            }

                if($flag==true)

                {

//print"        <tr><td><input type=\"checkbox\" name=\"selcie\"  value=\"$td[1]\" checked>$td[1]</td></tr>";

                }

                else

                {

print"        <tr><td><input type=\"checkbox\" name=\"selcie\" value=\"$td[1]\" >$td[1]</td></tr>";                

                }

                $j++;

    }    

?>         

  <input type="submit" name="Submit" value="Submit" onclick="fnallocate()">

</form>

<?
 
if(isset($_POST['Submit']))

{

    for ($i=0; $i<count($_POST['selcie']);$i++) {

       echo "<br />value $i = ".$_POST['selcie'][$i];

    }

}

?>

</body

Feb 26 '08 #5

hsriat

1,654

Recognized Expert Top Contributor

[php]
<script type="text/javascript">
function fnallocate(len) {
for(i=0;i<len;i ++) {
if(document.get elementById('se lcie_'+i).check ed==true)
return true;
}
alert("select atlest one");
return false;
}
</script>
<body>
<form action="checkbo x.php" name="form" method="post">
<?
$res=mysql_quer y("select * from cie where des='Resource Pipeline Associate' order by name");
$j=0;
$norow=mysql_nu m_rows($res);
$flag=false;
while($td=mysql _fetch_array($r es))
{
for($i=0;$i<cou nt($can);$i++)
{
if($td[1]==$can[$i])
{
$flag=true;
$i=count($can);
}
else
{
$flag=false;
}
}
if($flag==true)
{
echo "<tr><td><i nput type=\"checkbox \" id=\"selice_".$ j."\" name=\"selcie[]\" value=\"$td[1]\" checked>$td[1]</td></tr>";
}
else
{
echo "<tr><td><i nput type=\"checkbox \" id=\"selice_".$ j."\" name=\"selcie[]\" value=\"$td[1]\" >$td[1]</td></tr>";
}
$j++;
}
?>
<input type="submit" name="Submit" value="Submit" onclick="return fnallocate(".($ j-1).")">
</form>
<?
if(isset($_POST['Submit']))
{
for ($i=0; $i<count($_POST['selcie']);$i++)
{
echo "<br />value $i = ".$_POST['selcie'][$i];
}
}
?>
</body>
[/php]

Try it this time...

Feb 26 '08 #6

acoder

16,027

Recognized Expert Moderator MVP

i have mutiple check box value error object required...

Threads merged. Please do not double post.

Moderator

Feb 26 '08 #7

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