Retrieving information from a form using post

[Bendude14]

I have this code

 

  <select name="copylist2" multiple size=10
   onDblClick="Selectbox.copySelectedOptions(this.form.copylist2,this.form.copylist1,this.form.copysort.checked)">

 

and the submit button is called update and i am trying to retrieve it like so

 

<?php

if(isset($_POST['update'])) {

 

$players = $_POST['copylist2'];

 

echo $players;

 

?>

 

It does process the code but i just get undefined index copylist2 error.

 

Thanks

[Bendude14]

Can anyone help with this please? i know this would work if it was just a standard select box so it mush be something my javascript is doing to stop it posting?

 

Thanks

[xenophobia]

You can't really directly refer to your select box like this.

 

Try this:

  <select name="copylist2" multiple size=10
   onDblClick="Selectbox.copySelectedOptions(this,document.forms[0].copylist1,document.forms[0].copysort.checked)">

 

I assumed that you only have 1 form in your document. Using document.forms[0] referred to your current form.

 

The 'this' was referred from the double-click event from the select box itself. So 'this' can represent the select box object.

[lemmin]

He said the javascript part was working, I think. My guess is that Selectbox is defined in his javascript somewhere along with copySelectedOptions().

 

Can you show your code for copySelectedOptions()?

[Bendude14]

I have two list boxes and the javascript allows the names on the left to be moved by the user to the right and then when you click update i want to be able to process the information that was selected.

 

I think it would be pointless for me to post the js because its a file i used from the javascript tool box and it is all in shorthand?

 

if someone knows of any simpler scripts to get the same effect i would be happy to use them.

 

thanks

Ben

[Bendude14]

can anyone help with this?

 

Maybe even a start to creating my own javascript to do this function would be must appreciated.

 

Thanks

Ben

[lemmin]

A select object will only send one value to the POST so you will have to use javascript to send a bunch of values. Here is something to get you started:

<script language="JScript">
function addItem(e)
{
var newOp = document.createElement('OPTION');
frmTest.selNew.add(newOp);
newOp.innerText=e.innerText;
newOp.name=e.name;
newOp.value=e.value;

var newHid = document.createElement('INPUT');
newHid.type="HIDDEN";
newHid.name=e.name;
newHid.value=e.value;
frmTest.appendChild(newHid);
}
</script>
<form id="frmTest" method=POST action="test.php">
<select id="selOrig" name="selOrig" size=6 multiple onchange="addItem(document.getElementById(this.value))">
<option id="1" value="1" name="Item1">Item1
<option id="2" value="2" name="Item2">Item2
<option id="3" value="3" name="Item3">Item3
<option id="4" value="4" name="Item4">Item4
<option id="5" value="5" name="Item5">Item5
<option id="6" value="6" name="Item6">Item6
</select>
<select id="selNew" name="selNew" size=6 multiple>
</select>
<input type=submit>
</form>