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Pass dataset from select option to javascript function

Posted on 2014-01-08
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Last Modified: 2014-01-08
Hi Experts,

I attempt to send a dataset from an asp loop populated <OPTION> list to a javascript function using an onChange event in the <SELECT> tag, but get only "undefined" as output. What do I miss? heres my code:

<script type="text/javascript">

function UpdatecatPopup(){

var d = document.getElementById('EqCatList');
var _EqcID = d.options[d.selectedIndex].dataset['EqcID'];
var _des = d.options[d.selectedIndex].dataset['des'];
var _bet = d.options[d.selectedIndex].dataset['bet'];
var _descr = d.options[d.selectedIndex].dataset['descr'];
	
	
	document.getElementById('EditEqcID').innerHTML = _EqcID;
	document.getElementById('EditDesignation').value = _des;
	document.getElementById('EditBetegnelse').value = _bet;
	document.getElementById('EditDescription').value = _descr;
}

</script>

<body>

<select id="EqCatList" name="EqCatList" onChange="UpdatecatPopup();" >
<%
do while not EqCatList.EOF
%>
<option data-EqcID="<%=EqCatList("EqCatID")%>" data-EqCatDesignation="'<%=EqCatList("EqCatDesignation")%>'" data-EqCatBetegnelse="'<%=EqCatList("EqCatBetegnelse")%>'" data-EqCatDescription="'<%=EqCatList("EqCatDescription")%>'" onMouseOver="this.style.cursor='pointer';" >
<%=EqCatList("EqCatDesignation")%>
</option>

<%
EqCatList.movenext
loop
%>
</select>

<div id="EditEqcID" name="EditEqcID" class="EqCatinput" ></div><br />
<input type="text" id="EditDesignation" name="EditDesignation" class="EqCatinput" ><br />
<input type="text" id="EditBetegnelse" name="EditBetegnelse" class="EqCatinput" ><br />
<input type="text" id="EditDescription" name="EditDescription" class="EqCatinput" ><br />

</body>

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Question by:MortenWB
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6 Comments
 
LVL 82

Expert Comment

by:leakim971
ID: 39765145
do a right click on the page, choose view source, post it here
0
 

Author Comment

by:MortenWB
ID: 39765643
Hi leakim971,

thanks for responding:) here comes:



<head>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:27.0) Gecko/20100101 Firefox/27.0<br>Firefox<br>

<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />

<title>MBRACe Equipment</title>

<link href="MBRACe.css" rel="stylesheet" type="text/css" />


<script type="text/javascript">

function EditList(f){
	document.getElementById('ManageCat').value = f;
	document.forms.listeditor.submit();
}

function UpdatecatPopup(){
//	alert(EqcID + ' ' + des + ' ' + bet + ' ' + descr); 
var d = document.getElementById('EqCatList');
var _EqcID = d.options[d.selectedIndex].dataset['EqcID'];
var _des = d.options[d.selectedIndex].dataset['des'];
var _bet = d.options[d.selectedIndex].dataset['bet'];
var _descr = d.options[d.selectedIndex].dataset['descr'];
	
	
	document.getElementById('EditEqcID').innerHTML = _EqcID;
	document.getElementById('EditDesignation').value = _des;
	document.getElementById('EditBetegnelse').value = _bet;
	document.getElementById('EditDescription').value = _descr;
	document.getElementById('EditEqCat').style.display = 'block';
}

function UpdateEqc(){
	var EqcID, des, bet, descr
	EqcID = document.getElementById('EditEqcID'); 
	des  = document.getElementById('EditDesignation'); 
	bet  = document.getElementById('EditBetegnelse'); 
	descr = document.getElementById('EditDescription'); 
	alert(EqcID.innerHTML + ' ' + des.value + ' ' + bet.value + ' ' + descr.value); 

}
</script>

<form name="listeditor" action="Equipment.asp" method="post">
<input type="hidden" id="ManageCat" name="ManageCat" value="" />
<input type="hidden" id="EditCat" name="EditCat" />
<input type="hidden" id="CompareCat" name="CompareCat" />
<input type="hidden" id="InsertDesignation" name="InsertDesignation" />
<input type="hidden" id="InsertBetegnelse" name="InsertBetegnelse" />
<input type="hidden" id="InsertDescription" name="InsertDescription" />
<input type="hidden" id="DeleteEqCatID" name="DeleteEqCatID" />
</form>




<!-- OPEN RECORDSETS -->


<!-- REQUEST PARAMETERS -->


</head>

<body onLoad="focusEqCatInput();">

<!-- EQUIPMENT CATEGORY UPDATE LIST -->
<div id="UpdateEqCat" style="position:absolute; top:100px; left:20px; display:block;"><h3>Update Equipment Category</h3>

					<select id="EqCatList" name="EqCatList" size="20" class="submitLink" onChange="UpdatecatPopup();" style="text-align:left; width:165px; height:275px; background-color:#CCFFFF;">
						
					<option data-EqcID="27" data-EqCatDesignation="'Adapter'" data-EqCatBetegnelse="'Adapter'" data-EqCatDescription="'Accessorie'" onMouseOver="this.style.cursor='pointer';" >
					Adapter
					</option>

						
					<option data-EqcID="23" data-EqCatDesignation="'Admission'" data-EqCatBetegnelse="'Adgangskort'" data-EqCatDescription="'Access'" onMouseOver="this.style.cursor='pointer';" >
					Admission
					</option>

						
					<option data-EqcID="6" data-EqCatDesignation="'AppleAccessory'" data-EqCatBetegnelse="'AppleTilbehør'" data-EqCatDescription="'IT'" onMouseOver="this.style.cursor='pointer';" >
					AppleAccessory
					</option>

						
					<option data-EqcID="5" data-EqCatDesignation="'AppleUnit'" data-EqCatBetegnelse="'AppleEnhed'" data-EqCatDescription="'IT'" onMouseOver="this.style.cursor='pointer';" >
					AppleUnit
					</option>

						
					<option data-EqcID="8" data-EqCatDesignation="'AudioMonitor'" data-EqCatBetegnelse="'Højttaler'" data-EqCatDescription="'Audio'" onMouseOver="this.style.cursor='pointer';" >
					AudioMonitor
					</option>

						
					<option data-EqcID="10" data-EqCatDesignation="'AudioRecorder'" data-EqCatBetegnelse="'Lydoptager'" data-EqCatDescription="'Audio'" onMouseOver="this.style.cursor='pointer';" >
					AudioRecorder
					</option>

						
					<option data-EqcID="12" data-EqCatDesignation="'AVcombi'" data-EqCatBetegnelse="'AVoptager'" data-EqCatDescription="'AV'" onMouseOver="this.style.cursor='pointer';" >
					AVcombi
					</option>

						
					<option data-EqcID="21" data-EqCatDesignation="'BluRayUnit'" data-EqCatBetegnelse="'BluRayEnhed'" data-EqCatDescription="'AV'" onMouseOver="this.style.cursor='pointer';" >
					BluRayUnit
					</option>

						
					<option data-EqcID="28" data-EqCatDesignation="'Cable'" data-EqCatBetegnelse="'Kabel'" data-EqCatDescription="'Accessorie'" onMouseOver="this.style.cursor='pointer';" >
					Cable
					</option>

						
					<option data-EqcID="14" data-EqCatDesignation="'CassetteDeck'" data-EqCatBetegnelse="'Casetteudstyr'" data-EqCatDescription="'Audio'" onMouseOver="this.style.cursor='pointer';" >
					CassetteDeck
					</option>

						
					<option data-EqcID="20" data-EqCatDesignation="'CD-DVDenhed'" data-EqCatBetegnelse="'CD-DVDenhed'" data-EqCatDescription="'AV'" onMouseOver="this.style.cursor='pointer';" >
					CD-DVDenhed
					</option>

						
					<option data-EqcID="18" data-EqCatDesignation="'CDunit'" data-EqCatBetegnelse="'CDenhed'" data-EqCatDescription="'Audio'" onMouseOver="this.style.cursor='pointer';" >
					CDunit
					</option>

						
					<option data-EqcID="7" data-EqCatDesignation="'ComputerMonitor'" data-EqCatBetegnelse="'Computerskærm'" data-EqCatDescription="'IT'" onMouseOver="this.style.cursor='pointer';" >
					ComputerMonitor
					</option>

						
					<option data-EqcID="38" data-EqCatDesignation="'CopyPrinter'" data-EqCatBetegnelse="'KopiPrinter'" data-EqCatDescription="'Tool'" onMouseOver="this.style.cursor='pointer';" >
					CopyPrinter
					</option>

						
					<option data-EqcID="32" data-EqCatDesignation="'Dimmer'" data-EqCatBetegnelse="'Lysdæmper'" data-EqCatDescription="'Music'" onMouseOver="this.style.cursor='pointer';" >
					Dimmer
					</option>

						
					<option data-EqcID="39" data-EqCatDesignation="'DiscPrinter'" data-EqCatBetegnelse="'DiskPrinter'" data-EqCatDescription="'Tool'" onMouseOver="this.style.cursor='pointer';" >
					DiscPrinter
					</option>

						
					<option data-EqcID="19" data-EqCatDesignation="'DVDunit'" data-EqCatBetegnelse="'DVDenhed'" data-EqCatDescription="'AV'" onMouseOver="this.style.cursor='pointer';" >
					DVDunit
					</option>

						
					<option data-EqcID="42" data-EqCatDesignation="'EffectMachine'" data-EqCatBetegnelse="'Effektmaskine'" data-EqCatDescription="'Audio'" onMouseOver="this.style.cursor='pointer';" >
					EffectMachine
					</option>

						
					<option data-EqcID="48" data-EqCatDesignation="'Ergonomics'" data-EqCatBetegnelse="'Ergonomi'" data-EqCatDescription="'Mousetrappers, pen tablets aso.'" onMouseOver="this.style.cursor='pointer';" >
					Ergonomics
					</option>

						
					<option data-EqcID="26" data-EqCatDesignation="'HandTool'" data-EqCatBetegnelse="'Håndværktøj'" data-EqCatDescription="'Tool'" onMouseOver="this.style.cursor='pointer';" >
					HandTool
					</option>

						
					<option data-EqcID="36" data-EqCatDesignation="'Inventory'" data-EqCatBetegnelse="'Inventar'" data-EqCatDescription="'Locale'" onMouseOver="this.style.cursor='pointer';" >
					Inventory
					</option>

						
					<option data-EqcID="22" data-EqCatDesignation="'Key'" data-EqCatBetegnelse="'Nøgle'" data-EqCatDescription="'Access'" onMouseOver="this.style.cursor='pointer';" >
					Key
					</option>

						
					<option data-EqcID="25" data-EqCatDesignation="'LabelPrinter'" data-EqCatBetegnelse="'Labelprinter'" data-EqCatDescription="'Tool'" onMouseOver="this.style.cursor='pointer';" >
					LabelPrinter
					</option>

						
					<option data-EqcID="2" data-EqCatDesignation="'Laptop'" data-EqCatBetegnelse="'Bærbar'" data-EqCatDescription="'IT'" onMouseOver="this.style.cursor='pointer';" >
					Laptop
					</option>

						
					<option data-EqcID="30" data-EqCatDesignation="'LightingConsole'" data-EqCatBetegnelse="'Lyspult'" data-EqCatDescription="'Stage'" onMouseOver="this.style.cursor='pointer';" >
					LightingConsole
					</option>

						
					<option data-EqcID="3" data-EqCatDesignation="'Mac'" data-EqCatBetegnelse="'Mac'" data-EqCatDescription="'IT'" onMouseOver="this.style.cursor='pointer';" >
					Mac
					</option>

						
					<option data-EqcID="4" data-EqCatDesignation="'Macbook'" data-EqCatBetegnelse="'Macbook'" data-EqCatDescription="'IT'" onMouseOver="this.style.cursor='pointer';" >
					Macbook
					</option>

						
					<option data-EqcID="31" data-EqCatDesignation="'MixingConsole'" data-EqCatBetegnelse="'Mixerpult'" data-EqCatDescription="'Music'" onMouseOver="this.style.cursor='pointer';" >
					MixingConsole
					</option>

						
					<option data-EqcID="40" data-EqCatDesignation="'MultiFunctionPrinter'" data-EqCatBetegnelse="'MultiFunktionsPrinter'" data-EqCatDescription="'Tool'" onMouseOver="this.style.cursor='pointer';" >
					MultiFunctionPrinter
					</option>

						
					<option data-EqcID="41" data-EqCatDesignation="'MusicInstrument'" data-EqCatBetegnelse="'MusikInstrument'" data-EqCatDescription="'music'" onMouseOver="this.style.cursor='pointer';" >
					MusicInstrument
					</option>

						
					<option data-EqcID="1" data-EqCatDesignation="'PC'" data-EqCatBetegnelse="'PC'" data-EqCatDescription="'IT'" onMouseOver="this.style.cursor='pointer';" >
					PC
					</option>

						
					<option data-EqcID="24" data-EqCatDesignation="'Printer'" data-EqCatBetegnelse="'Printer'" data-EqCatDescription="'Access'" onMouseOver="this.style.cursor='pointer';" >
					Printer
					</option>

						
					<option data-EqcID="35" data-EqCatDesignation="'Projector'" data-EqCatBetegnelse="'Projektor'" data-EqCatDescription="'AV'" onMouseOver="this.style.cursor='pointer';" >
					Projector
					</option>

						
					<option data-EqcID="44" data-EqCatDesignation="'Safety'" data-EqCatBetegnelse="'Sikkerhed'" data-EqCatDescription="'Diverse'" onMouseOver="this.style.cursor='pointer';" >
					Safety
					</option>

						
					<option data-EqcID="37" data-EqCatDesignation="'Scanner'" data-EqCatBetegnelse="'Skanner'" data-EqCatDescription="'Tool'" onMouseOver="this.style.cursor='pointer';" >
					Scanner
					</option>

						
					<option data-EqcID="13" data-EqCatDesignation="'SoundCard'" data-EqCatBetegnelse="'Lydkort'" data-EqCatDescription="'AV'" onMouseOver="this.style.cursor='pointer';" >
					SoundCard
					</option>

						
					<option data-EqcID="29" data-EqCatDesignation="'StageFixtures'" data-EqCatBetegnelse="'TeaterInventar'" data-EqCatDescription="'Stage'" onMouseOver="this.style.cursor='pointer';" >
					StageFixtures
					</option>

						
					<option data-EqcID="34" data-EqCatDesignation="'StageTechnique'" data-EqCatBetegnelse="'Scenemateriel'" data-EqCatDescription="'Stage'" onMouseOver="this.style.cursor='pointer';" >
					StageTechnique
					</option>

						
					<option data-EqcID="17" data-EqCatDesignation="'TapeRecorder'" data-EqCatBetegnelse="'Båndoptager'" data-EqCatDescription="'Audio'" onMouseOver="this.style.cursor='pointer';" >
					TapeRecorder
					</option>

						
					<option data-EqcID="33" data-EqCatDesignation="'TheaterLamp'" data-EqCatBetegnelse="'Teaterlampe'" data-EqCatDescription="'Stage'" onMouseOver="this.style.cursor='pointer';" >
					TheaterLamp
					</option>

						
					<option data-EqcID="9" data-EqCatDesignation="'TVmonitor'" data-EqCatBetegnelse="'TVskærm'" data-EqCatDescription="'Audio'" onMouseOver="this.style.cursor='pointer';" >
					TVmonitor
					</option>

						
					<option data-EqcID="15" data-EqCatDesignation="'VHSplayer'" data-EqCatBetegnelse="'VHSafspiller'" data-EqCatDescription="'AV'" onMouseOver="this.style.cursor='pointer';" >
					VHSplayer
					</option>

						
					<option data-EqcID="16" data-EqCatDesignation="'VHSrecorder'" data-EqCatBetegnelse="'VHSoptager'" data-EqCatDescription="'AV'" onMouseOver="this.style.cursor='pointer';" >
					VHSrecorder
					</option>

						
					<option data-EqcID="11" data-EqCatDesignation="'VideoCam'" data-EqCatBetegnelse="'Videokamera'" data-EqCatDescription="'AV'" onMouseOver="this.style.cursor='pointer';" >
					VideoCam
					</option>

						
                    </select>
</div>

<div id="EditEqCat" style="position:absolute; top:145px; left:220px; display:none;">

<label class="EqCatinput" style="left:-15px; width:100px; text-align:right;">Category ID</label>
<div id="EditEqcID" name="EditEqcID" class="EqCatinput" style="text-align:left; left:100px;	color:#0066FF;">ID</div><br /><br />

<label class="EqCatinput" style="left:-15px; width:100px; text-align:right;">Category designation</label>
<input type="text" id="EditDesignation" name="EditDesignation" class="EqCatinput" onKeyUp="CompareEqc();" style="text-align:left; width:165px;  left:100px; color: #0066FF;
"><br /><br />

<label class="EqCatinput" style="left:-15px; width:100px; text-align:right;">Kategori betegnelse</label>
<input type="text" id="EditBetegnelse" name="EditBetegnelse" class="EqCatinput" style="text-align:left; width:165px; left:100px;"><br /><br />

<label class="EqCatinput" style="left:-15px; width:100px; text-align:right;">Category Description</label>
<input type="text" id="EditDescription" name="EditDescription" class="EqCatinput" style="text-align:left; width:165px; left:100px;"><br /><br />

<input type="button" id="InsertButton" class="EqCatinput" value="Click when ready" onClick="UpdateEqc();" style="text-align:center; width:165px; left:100px; display:block;"><br />


</div>





</body>

</html>

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Expert Comment

by:leakim971
ID: 39765724
why do you have the form inside the head section?
0
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Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

 
LVL 82

Accepted Solution

by:
leakim971 earned 500 total points
ID: 39765758
Check this page : http://jsfiddle.net/ZY5mu/2/

<select id="EqCatList" name="EqCatList" size="20" class="submitLink" onChange="UpdatecatPopup(this);" style="text-align:left; width:165px; height:275px; background-color:#CCFFFF;">

function UpdatecatPopup(d){
    var o = d.options[d.selectedIndex]
    var _EqcID = o.getAttribute('data-EqcID');
    var _des = o.getAttribute('data-EqCatDesignation');
    var _bet = o.getAttribute('data-EqCatBetegnelse');
    var _descr = o.getAttribute('data-EqCatDescription');
	
	document.getElementById('EditEqcID').innerHTML = _EqcID;
	document.getElementById('EditDesignation').value = _des;
	document.getElementById('EditBetegnelse').value = _bet;
	document.getElementById('EditDescription').value = _descr;
	document.getElementById('EditEqCat').style.display = 'block';
}

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Author Comment

by:MortenWB
ID: 39766250
Hi again, leakim971

fantastic! works like a charm, allowing the page to work even in IOS Safari (where onclick within the <option> tag did'nt do the trick as it does in other browsers).

And to your question  "why do you have the form inside the head section? " - well, I use it solely for populating hidden fields with assorted javascript functions - so I figured it was not nessecary in the body - are there any considerations I should know about?

But thanks for speedy help :)

Regards
MortenWB
0
 

Author Closing Comment

by:MortenWB
ID: 39766253
Right on the spot!
0

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