Flash MX Combo Box Component

Hey I'm trying to create a flash form that contains some combo boxes. How do I pull the current data off the combo box and send it to php? Also, the default value of the combo box is blank, so how to I validate it when the user clicks "submit" to ensure he has selected an option.

Thanks.

Hi, found this which answers half of your question

Getting variables from a combo box into php

The gist of it is:

function getthevalue() {
passthis = mycombobox.getSelectedItem();
loadVariablesNum ("myfile.php", "0", "POST");
}

Now to check validate the user data you can be very specific i.e.

function getthevalue() {
passthis = mycombobox.getSelectedItem();
if(passthis == "news" || passthis =="home" || passthis == "fred")
{
loadVariablesNum ("myfile.php", "0", "POST");
}
else if(passthis == "tom")
{
loadVariablesNum ("tomsfile.php", "0", "POST");
}
else{
_root.messageBox.text = "please select an option";
}
}

If your not to fussed to check that closely then you can just use:

function getthevalue() {
passthis = mycombobox.getSelectedItem();
if(passthis != "")
{
loadVariablesNum ("myfile.php", "0", "POST");
}
else{
_root.messageBox.text = "please select an option";
}
}

Thanks for the advice. You have solved my problems. I send many thanks and Holiday Wishes your way!

Which string do we have to put in the php file regarding the selected label in the combo box?

PHP file will look like this:
<?php
{
$db = mysql_connect("localhost", "DB", "Password");
mysql_select_db("DB");

$sql = "INSERT INTO Table (field1,field2,field3) VALUES ('$??????','$var2','$var3')";

$result = mysql_query($sql);
echo "Thank you! Information entered.\n";
}
?>


The '$??????' should be the selected label of the combobox; I tried with '$passthis' and '$mycombobox' but it doesn't work. What is the good parameter?

My Flash code for the submit button is :

on (release) {
if (this.var2 == '' || this.var2 == null || this.var3 == '' || this.var3 == null) {
this.messok = 'Please make sure that ...';
} else {
function getthevalue() {
passthis = mycombobox.getSelectedItem();
loadVariablesNum ("http://url/myphp.php", 0, "POST");}
messok = "Thank you for your interest. ";
}
}

The Flash code for the combo box is:
form = new Object();
form.change = function (evt){
trace(evt.target.selectedItem.label);
}
mycombobox.addEventListener("change", form);

Thanks in advance.