dynamic listbox - multiple "selected"

[paruby]

Hello -

 

I found the following code to create combo and list boxes, and it works great ::

 

function createComboBox($identifier, $pairs, $helptext="", $multiple="", $key="", $numitems="")  {

if ($numitems == "") {
	$numitems = "1";
}
$listbox = "<select name=\"$identifier\" $multiple size=\"$numitems\">\n";
if ($helptext != "")  {
	$listbox .= "   <option value=\"99999\">$helptext</option>\n";
}
foreach($pairs AS $value => $name)   {
	if ($value == $key)   {
		$listbox .= "   <option value=\"$value\" SELECTED>$name</option>\n";
	}
	else $listbox .= "   <option value=\"$value\">$name</option>\n";
}
$listbox .= "</select>\n";
return $listbox; 	
}

 

If it makes sense, it only allows for one item to be selected.  I am using the following "code" to to send to the function ::

 

select * from table;
while rows {
$value = $GetRow['id'];
$name = $GetRow['name'];
$pairs["$value"] = $name;
}

echo createComboBox("cboathlete[]", $pairs, "", "MULTIPLE", "", "5");

 

I am not versed enough to figure out how to change the function to just send  (for instance) a comma delimited list of items to be selected.  i would like to send a list of id's that should be selected in the listbox.  I am hoping it is pretty straight forward, and only need to change around the "if ($value == $key) " piece of the fuction.

 

Thanx!

 

Pete

[paruby]

OK.  I think I got it...  Posting in case anyone else is interested...  First, I had to get the values that were to be "SELECTED" - this is in addition to the existing query to get the full list ::

select * from Table where ...;
while rows {
$thisAthID = $GetRow['id'];
$thisraID = $GetRow['name'];
$athIDPairs["$thisraID"] = $thisAthID;
}

 

Then I had to change the function as follows ::

 

function createListBox($identifier, $pairs, $helptext="", $multiple="", $key="", $numitems="")  {

if ($numitems == "") {
	$numitems = "1";
}
$listbox = "<select name=\"$identifier\" $multiple size=\"$numitems\">\n";
if ($helptext != "")  {
	$listbox .= "   <option value=\"99999\">$helptext</option>\n";
}
foreach($pairs AS $value => $name)   {
	$selectOpt = "";
	if (key != "") {
		foreach($key as $thisraID => $thisAthID) {
	   		if ($value == $thisAthID)   {
				$selectOpt = " SELECTED";
				continue;
			}
		}
	}
	$listbox .= "   <option value=\"$value\"$selectOpt>$name</option>\n";
}
$listbox .= "</select>\n";
return $listbox; 	
}

 

It basically checks to see if the ID of the list item matches any of the Selected item ID's.  If it does, add the "selected' keyword to the code...