Use of combobox in script

**Martien** · 15-01-2010

Hi,
I would like to dynamically add ComboBox with its contents in PHP.
Untill now I have been able to add ComboBox of static type with its contents, but I found that my PHP script gets fails.
My desktop is loaded with the Linux.
I hope that someone can help me to solve my problem.
have a nice day!

**Praetor** · 15-01-2010

I suggest you to try Combobox component, part of Nitobi's UI suite of Ajax components this provides you a drop-down menu with autocomplete functionality.

It includes:

1. It provides Advanced Ajax support to perform wthout postbacks on-the-fly data requests.
2. It offers six search modes. Features smartlist, smartsearch, paging, filtering, compact and unbound modes.
3. It is fully skinnable through CSS templates.
4. It is an Internationalizatized.
5. With Adobe Dreamweaver it is Easy to integrate.
6. It provides Unparalleled browser support. It supports most of the modern browsers.

**kelfro** · 15-01-2010

Instead, you can also use javascript your pre-populated drop-down lists to make visible or hidden.,
For example:
1. To hide it , your form offers drop-down list 1 and CSS properties of drop-down list 2 by default.
2. User also select from drop-down 1.
3. There is an add button on the form.
4. User calls java to change the CSS properties of drop-down 2 to display by clicking on the add button.

**Katty** · 15-01-2010

According to my opinion, You have to try the following:

The following example states that how to validate the combo box using JavaScript validation.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>ComboBox Validation</TITLE>

<script Language="JavaScript">
function validateS(){
var selCombobox=(cboForm.technol.value);
if (selCombobox=="-1") {
alert("Please Select Technology");
return false;
}
return true;
}
</script>