<?php
class SelectBox extends Form_Element
{
// description: Use with class_forms.php.
// Don't foget to select the id-column also in SQL-command.
// Show a selectbox with odbc-database-support.
// Show selectbox add id's and items to.
// Show selectbox filled with database-field-values.
// Show selectbox filled with hyperlinks to auto-jump to.
// version: 1.4
// history: 24-7-2003 release version 1.4
// history: 7-8-2002 release version 1.0
var $Connection;
var $SQLQuery_items = "";
var $SQLQuery_items_idcolnr = 1;
var $ItemList = array();
var $SQLQuery_selected = "";
var $SQLQuery_selected_idcolnr = 1;
var $SQLQuery_update;
var $Selected = ""; // set selected item when no db available
var $Hyperlinks = 0;
var $Extra_URI_1 = "";
var $Extra_URI_2 = "";
var $ExtraProperties = "";
// constructor (set form-element's name)
function SelectBox($Name)
{
$this->Set_Element_Name($Name);
}
// show selectbox
function Show()
{
// handle chosen input with db
if (!empty($this->SQLQuery_update))
{
$result = odbc_exec($this->Connection,$this->SQLQuery_update);
}
// itemlist from db
if ($this->SQLQuery_items != "")
{
$result = odbc_exec($this->Connection,$this->SQLQuery_items);
$nrfields = odbc_num_fields($result);
while(odbc_fetch_row($result))
{
// haal data per result-kolom
for ($i = 1; $i <= $nrfields; $i++)
{
$showstring = odbc_result($result,$i);
$id = odbc_result($result,$this->SQLQuery_items_idcolnr);
$this->ItemList[$id] = $showstring;
}
}
}
// set selected value with a query (manual use: set $this->Selected to an id)
if ($this->SQLQuery_selected != "")
{
$result = odbc_exec($this->Connection,$this->SQLQuery_selected);
if (odbc_fetch_row($result))
{
$this->Selected = odbc_result($result,$this->SQLQuery_selected_idcolnr);
}
}
// show selectbox
if ($this->Hyperlinks != 0) $OnChangeString = "OnChange=\"top.location.href='".$this->Extra_URI_1."'+this.options[this.selectedIndex].value+'".$this->Extra_URI_2."'\"";
else $OnChangeString = "";
print"<select name='".$this->Element_Name."' ".$OnChangeString." ".$this->ExtraProperties.">\n";
reset($this->ItemList);
// toon items als options via itemlist
for ($i = 0; $i < count($this->ItemList); $i++)
{
print"<option value='".key($this->ItemList)."'";
if (key($this->ItemList) == $this->Selected) print " selected";
print ">".current($this->ItemList)."\n";
next($this->ItemList);
}
print"</select>";
}
// add item manually
function AddItem($Id,$ShowString)
{
$this->ItemList[$Id] = $ShowString;
}
// read a value
function GetItem($Id)
{
print $this->ItemList[$Id];
}
// get number of items
function ItemCount()
{
return count($this->ItemList);
}
}
?>
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