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formfields
Joined: 01 Aug 2005
Posts: 465
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 Posted: Wed Nov 30, 2005 8:01 pm Post subject: How Do I Create Dynamic Drop Down Menus? |
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Here is an example of a FORMfields form where there are two drop down boxes:
1. A music genre box
2. A dynamic band box, which is populated with bands in the chosen music genre.
| Code: |
<? /* BEGIN - SECTION 1 */ ?>
<?php
require($_SERVER["DOCUMENT_ROOT"] . "/FORMfields/FORMfields.php");
$formBean = new FormBean();
$formBean->addField(new SubmitField("_submit", "Submit"));
$formBean->addField(new SubmitField("clear", "Clear"));
$formBean->addField(new SubmitField("cancel", "Cancel"));
$genre = array("Rock", "Hip Hop");
$formBean->addField(new DropDownField("genre", "Music Genre", REQUIRED, $genre, $genre, "[Select One]"));
$formBean->formFields["genre"]->setExtraHtml("onchange=\"document.form1.submit();\"");
if ($_REQUEST["genre"] === "Rock") {
$bands = array("Dave Matthews Band", "Coldplay");
} else if ($_REQUEST["genre"] === "Hip Hop") {
$bands = array("Tribe Called Quest", "Roots");
}
if ($_REQUEST["genre"]) { // if a value is selected
$formBean->addField(new DropDownField("band", "Favorite Band", REQUIRED, $bands, $bands, "[Select One]"));
}
$formBean->getParameters();
?>
<? /* END - SECTION 1 */ ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Form1</title>
<? /* BEGIN - SECTION 2 */ ?>
<link rel="stylesheet" type="text/css" href="/FORMfields/FORMfields.css" />
<script type="text/javascript" src="/FORMfields/FORMfields.js"></script>
<link rel="stylesheet" type="text/css" href="/FORMfields/tableHelpers.css" />
<? /* END - SECTION 2 */ ?>
</head>
<body onload="setFocus();">
<? /* BEGIN - SECTION 3 */ ?>
<form name="form1" action="" method="get">
<div class="FORMfields">
<?= $formBean->getTableTag() ?>
</div>
</form>
<? /* END - SECTION 3 */ ?>
</body>
</html>
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formfields
Joined: 01 Aug 2005
Posts: 465
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| Posted: Mon Apr 17, 2006 5:04 pm Post subject: |
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Here is an example of how to load a drop down box from rows in a database table:
Let's say you have a table named friends with the following structure and data:
fields: id name age
row1: 1 John 30
row2: 2 Peter 34
row3: 3 Bob 29
Then the code to display a drop down box of friends would be like:
| Code: |
<? /* BEGIN - SECTION 1 */ ?>
<?php
require($_SERVER["DOCUMENT_ROOT"] . "/FORMfields/FORMfields.php");
$formBean = new FormBean();
$formBean->addField(new SubmitField("_submit", "Submit"));
$formBean->addField(new SubmitField("clear", "Clear"));
$formBean->addField(new SubmitField("cancel", "Cancel"));
$friends = getList("SELECT name FROM friends");
$formBean->addField(new DropDownField("friend", "Friend", REQUIRED, $friends, $friends, "[Select One]"));
$formBean->getParameters();
?>
<? /* END - SECTION 1 */ ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Form1</title>
<? /* BEGIN - SECTION 2 */ ?>
<link rel="stylesheet" type="text/css" href="/FORMfields/FORMfields.css" />
<script type="text/javascript" src="/FORMfields/FORMfields.js"></script>
<link rel="stylesheet" type="text/css" href="/FORMfields/tableHelpers.css" />
<? /* END - SECTION 2 */ ?>
</head>
<body onload="setFocus();">
<? /* BEGIN - SECTION 3 */ ?>
<form name="form1" action="" method="get">
<div class="FORMfields">
<?= $formBean->getTableTag() ?>
</div>
</form>
<? /* END - SECTION 3 */ ?>
</body>
</html>
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formfields
Joined: 01 Aug 2005
Posts: 465
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| Posted: Mon May 08, 2006 4:51 pm Post subject: |
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If you are using FORMgen's Confirmation Screen option with the 1st dynamic drop example above, then you have to take in consideration values passed by hidden fields. FORMfields uses hidden values to pass around the values on the Confirmation Screen. Therefore, the example would become:
| Code: |
...
$genre = $_REQUEST["genre"];
if (!$genre)
$genre = $_REQUEST["genre__hidden"];
if ($genre === "Rock") {
$bands = array("Dave Matthews Band", "Coldplay");
} else if ($genre === "Hip Hop") {
$bands = array("Tribe Called Quest", "Roots");
}
if ($genre) { // if a value is selected
$formBean->addField(new DropDownField("band", "Favorite Band", REQUIRED, $bands, $bands, "[Select One]"));
}
...
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