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JavaScript - Populate Listbox Using Js
I am trying to populate a listbox using Javascript. The listbox is populated using the xml response from ajax request. Below is the code used for the same
Code: var xmlDoc = xmlhttp.responseXML;
for (var i = 0; i < xmlDoc.getElementsByTagName("id").length; i++) {
traderlists.add(new Option(xmlDoc.getElementsByTagName("name")[i].childNodes[0].nodeValue, xmlDoc.getElementsByTagName("id")[i].childNodes[0].nodeValue));
}
This works fine for me. But i am facing performance issue here. some ajax requests retrieves xmls with around 11,000 nodes and this takes too much of time to populate the listbox. Can anyone please advice me with an better solution? Similar TutorialsHi, Iam trying a simple fill listbox on the body load, but its not working. Can someone please help me on this Code: <!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<script language="javascript" src="script.js"></script>
<body onload="fillCategory();">
<form id="drop_list" name="form1" method="post" action="">
<label>
<select name="Category" id="Category">
</select>
</label>
</form>
</body>
</html>
and my script.js: Code: function fillCategory(){
addOption(document.form1.Category, "Fiji", "Fiji", "");
addOption(document.form1.Category, "Australia", "Australia", "");
addOption(document.form1.Category, "New Zealand", "New Zealand", "");
}
Hi, I have an application wherein for one page I want to display a Listbox on selection of a radio button. There should be 2 radio buttons and when the user clicks on the 2nd one "My Process", a list box should be displayed with several options. Can anybody pls help me with this as I'm a beginner to JS.. Many thanks Pooja. I'm probably not allowed to request something like this, but since this is a small amount of code I think I should do it anyways :P Okey, so I have two listboxes and I want a tickbox to enable one listbox and disable one listbox as you tick a checkbox. I want one listbox disabled by default and the other enabled and then vice-verca the disable when you tick the box. If someone could supply me with that code I would be really greatful, butyou don't need to bother with the HTML, I should figure it out from the JS. Thanks in advance <3 Hi there, I have a listbox and an Edit button. The user will need to click on the email address in the listbox before clicking on the button to edit. But then, the email address will be displayed on the prompt box's textbox, and even without editing it, the user can get scot-free. I would want to remove the email address on the prompt box's textbox, and also to check for null entries. If it is null, it will display an alert message. Else, it will check if it is a valid email address. My code is as follow: Code: function editItem()
{
var listbox = document.getElementById('listBox'); // listbox control id
var newValue = lst.value;
if(newValue != "")
{
var newItem = prompt("Enter the new email address",newValue);
if(newItem == "")
{
alert("Please key in an email address into the textbox.");
return false;
}
else
{
listbox.options[listbox.selectedIndex] = new Option(newItem,newItem,false,false);
return false;
arrTexts = new Array();
validRegExp =/^\w+@[a-zA-Z_]+?\.[a-zA-Z]{2,3}$/
// search email text for regular exp matches
if (arrTexts.value.search(validRegExp) ==-1 )
{
alert('A valid e-mail address is required.\nPlease try again.');
return false;
}
else
{
for(i=0; i<listbox.length; i++)
{
arrTexts[i] = lst.options[i].text;
}
arrTexts.sort();
for(i=0; i<listbox.length; i++)
{
listbox.options[i].text = arrTexts[i];
listbox.options[i].value = arrTexts[i];
}
}
}
}
else
{
alert('Select Item From The List To Edit ');
}
}
HTML Code: select id="lstBxEmail" name="listBoxEmail" size="6" style="width: 580px;"> <option>figFruit@msn.com</option> <option>apple@hotmail.com</option> <option>cherry@yahoo.com</option> <option>banana@hotmail.com</option> <option>elephantApple@ymail.com</option> <option>durian@gmail.com</option> </select> <select id="listBox" name="listBox" size="3" style="width: 580px;"> <option>hello@msn.com</option> <option>wowAmusers@hotmail.com</option> <option>yrulikethis@yahoo.com</option> </select> Hi I've been working on a listbox full of employees for our company intranet. Each name has an onchange tag that calls up a floor map and that part works fine but I'd really like to populate the names from an XML list so it's easier for non-IT people to maintain. I've been doing alot of web searches on the subject which comes up alot but it's mostly just fragments of what I need being that I've got no javascript background. I found a helpful tutorial on javascriptkit but that wasn't for creating listboxes so I'm only part of the way there. This is the XML file I've got (there will eventually be 400 entries): <?xml version="1.0"?> <list> <employee> <name>##########</name> <office>1656</office> <officePH>(403)000-0000</officePH> <mobile>N/A</mobile> <email>##########</email> </employee> <employee> <name>#########</name> <office>1657</office> <officePH>(403)000-0000</officePH> <mobile>N/A</mobile> <email>###########</email> </employee> </list> The most important parts are the name which will be used as the text of the box and the office number which will determine which floorplan is displayed. I added the other information so I can potentially put it in a div display later but that can wait. Can anyone help point me to some good resources on this subject? Thanks. hello I have a listbox full of names on a PHP website and was wondering if there was a way to grab the value during a double click to bring me to another form to display the name and information? Hi, I've been working on a company directory page where a listbox called "People" in a form called "people_form" contains 400 employee names. I made the box "multiple" just so I could have it big and easier to find names but I decided a search box would be really useful. I've looked up a few such search scripts but so far the two I've tried haven't worked. The latest one when it's installed on the page, nothing happens when you type characters into it (it's supposed to jump to an entry matching the first few letters). Although if I backspace then it selects EVERY name in the list Here's the current form with the input tag being the search box (oh the options are populated by java script): <form name="people_form"> <input type="text" id="realtxt" onkeyup="searchSel()"></input> <select onchange="display(this.value); return false;" multiple="multiple" id="People" name="People" style="border-style: none; height:198px; width:220px;"> <option value="">Loading</option> </select></form> And here's the actual search function in the head of the page in the script tags: function searchSel() { var input=document.getElementById('realtxt').value.toLowerCase(); var output=document.getElementById('People').options; for(var i=0;i<output.length;i++) { if(output[i].value.indexOf(input)==0){ output[i].selected=true; } if(document.forms[0].realtxt.value==''){ output[0].selected=true; } } } If you know of a script that will work properly I'd appreciate it. For convenience I'm looking for one that jumps to selections inside the listbox as opposed to one where you click a search button and get results somewhere else. Hello, I'm trying to fill an array with the values of a listbox from a SQL query but somehow I can only get the first word of each registry Code:
var arrayX=[];
function getValue(){
var x=document.getElementById("combo_color");
for (var i = 0; i < x.options.length; i++) {
if(x[i].value!=''){
arrayX.push(x[i].value);
}
}
}
for example, with the color Green Karanka I only get Green inside the array, the same happens with any color with more than one word, any ideas? Thanks. Essentially, I have an ASP.net page where I load a record set server side and upload it into a listbox. I'm trying to do all the movement functionalities of the listbox items client side. Specifically, I'm trying to figure out how to copy selected listbox items from one listbox to another -- on button click. I've searched for a while, but every example that I found moves the actual item into another listbox, I just want to copy the selected item to another listbox. I'm very new to JavaScript, so ff someone can provide an example or pseudo code, I would greatly appreciate it. Hi, I would like to know how to add/remove items from listbox PERMANENTLY. Sad to say, all I have found are adding/removing items temporarily. Code: <!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" >
<head>
<title>Untitled Page</title>
<script language="javascript" type="text/javascript" >
function addOption(selectbox,text,value )
{
var optn = document.createElement("OPTION");
optn.text = text;
optn.value = value;
selectbox.options.add(optn);
}
function addOption_list(selectbox)
{
addOption(document.drop_list.SubCat, "One","One");
addOption(document.drop_list.SubCat, "Two","Two");
addOption(document.drop_list.SubCat, "Three","Three");
addOption(document.drop_list.SubCat, "Four","Four");
addOption(document.drop_list.SubCat, "Five","Five");
addOption(document.drop_list.SubCat, "Six","Six");
}
function removeOptions(selectbox)
{
var i;
for(i=selectbox.options.length-1;i>=0;i--)
{
if(selectbox.options[i].selected)
selectbox.remove(i);
}
}
</script>
</head>
<body onload="addOption_list()";>
<form name="drop_list" action="default.aspx" method="post" >
<select id="SubCat" name="SubCat" MULTIPLE size="6" width="10"></select>
<input type="button" onclick="removeOptions(SubCat)"; value='Remove Selected' />
<input type="button" onclick="addOption_list()"; value='Add All' />
</form>
</body>
</html>
Please advise me on the problem. if i have a large script built multi-select-list-box, is there a way within javascript to onClick of a hyperlink, jump-to the line within the select box that corresponds to the value clicked?
Hi there, I have this listbox that I want the user to select only one choice at a time. How do I disable the multiple selection feature in javascript? <select id="lstBxEmail" name="listBoxEmail" multiple="multiple" style="width: 580px;"> <option>Java</option> <option>PHP</option> <option>Perl</option> <option>Javascript</option> <option>C#</option> <option>Powershell</option> </select> <select id="lstBxEmail" name="listBoxEmail" multiple="multiple" style="width: 580px;"> <option>Java</option> <option>PHP</option> <option>Perl</option> <option>Javascript</option> <option>C#</option> <option>Powershell</option> </select> Hi there, I would like to do the following: When I click on a button, it will set the item in the listbox to be bold. But this will only happen when the user clicks on the desired item to be bold and presses the button. An alert message will occur when he/she presses the button without clicking on the item, stating that the user will need to click on the item. How shoukld I do it in javascript? I have a page with three identical listbox containing items in the same order. When an element is selected from any of the three lists, the script should search for the occurrence of the same element in other two lists and remove them on the fly from all the three lists. How can this be achieved? A script to achieve this is welcomed. <!-- ** Need help completing the javascript in this example ** --> Code: <html> <head> <title>Convert ListBox data into 4 Text Boxes</title> <script language="javascript"> function SplitText ( // NEED HELP WITH THIS CODE split text ","; convert to ['textbox1','textbox2','textbox3','textbox4'] } </script> </head> <body> <form name="convert"> <p style="margin: 2px"> <h3>Convert selected data to textboxes</h3> <!-- SELECT DATA FROM LIST BOX --> <select size="1" name="ListBox" onChange="SplitText();"> <option value="jim,bob,rick,paul" >==Row1==</option> <option value="pete,jack,chris,craig">==Row2==</option> <option value="mary,jane,lisa,kim" >==Row3==</option> </select> </p> <h3>In this example say we selected row1</h3> <!-- THE SELECTED DATA GETS SPLIT AND INSERTED INTO THESE 4 TEXTBOXES --> <p style="margin: 2px"> <input type="text" name="textbox1" value="jim"><br> <input type="text" name="textbox2" value="bob"><br> <input type="text" name="textbox3" value="rick"><br> <input type="text" name="textbox4" value="paul"><br> </p> </form> </body> </html> Hello! coding forums pals, I am resorting to you for help with a html form that uses javascript to validate data. the form is an invoice for a trip order where the user can select a trip location out of a listbox, a number of people traveling, and where they wish to stay(ex. hotel, tent, etc.) after the user selects one for each category and hits the "add to invoice" button, the fields in the invoice should get filled with the corresponding information. Now my question is how can I write code that will insert information in the next row down after the previous row has been filled? basically what logic and programming structure do I need in my function that will know when the first row in the invoice is filled. I'm struggling at the part where when the "add to invoice" button is clicked. some data is added to the invoice, and if the user wants to book another trip, the second trip should be appended in the second row of the invoice. what is happening in mine is that whenever I book another trip, the first one gets overwritten when in fact it should be left intact and the data should get appended in the next row down. Code: <html>
<head>
</head>
<script type="text/javascript">
function addit()
{
var f = document.myform;
var cost = 0;
var percentage = 0;
if(f.destination.selectedIndex == -1)
{
alert("please select a trip from the list");
return false;
}
if((f.travelers[0].checked == false) && (f.travelers[1].checked == false) && (f.travelers[2].checked == false) && (f.travelers[3].checked == false) && (f.travelers[4].checked == false) && (f.travelers[5].checked == false))
{
alert("please specify the number of people traveling")
return false;
}
if(f.accomodation.selectedIndex == -1)
{
alert("please specify your place of stay")
return false;
}
switch(f.destination.selectedIndex)
{
case 0:
document.myform.trip1.value="Mt. Kilimanjaro";
cost="2600";
break;
case 1:
document.myform.trip1.value="Denali";
cost="2000";
break;
case 2:
document.myform.trip1.value="Mt. Everest";
cost="3500";
break;
case 3:
document.myform.trip1.value="Maui";
cost="2700";
break;
case 4:
document.myform.trip1.value="Machu-Pichu";
cost="3100";
break;
}
for(i=0;i<f.travelers.length;i++)
{
if(f.travelers[i].checked)
f.num1.value=f.travelers[i].value;
}
f.cost1.value=parseInt(f.num1.value) * parseInt(cost);
switch(document.myform.accomodation.selectedIndex)
{
case 0:
percentage="0.00";
break;
case 1:
percentage="0.05";
break;
case 2:
percentage="0.15";
break;
case 3:
percentage="0.22";
break;
}
f.accom1.value=f.cost1.value * parseFloat(percentage);
f.total1.value=parseInt(f.cost1.value) + parseInt(f.accom1.value);
}
function deleteit()
{
var f = document.myform;
var txtbox = document.getElementsByClassName("text");
var rad = document.getElementsByClassName("rad");
f.destination.selectedIndex=-1;
f.accomodation.selectedIndex=-1;
for(j=0;j<txtbox.length;j++)
{
txtbox[j].value="";
}
for(x=0;x<rad.length;x++)
{
rad[x].checked=false;
}
}
function submitform()
{
document.myform.submit();
}
</script>
<body>
<form name="myform">
<table align="center" border="1" bgcolor="skyblue" cellpadding="0" cellspacing="0">
<tr><th>Trips Available</th><th>Number</br> Traveling</th><th>Accomodation</br> Type</th><th>Invoice</th></tr>
<tr><td align="center"><select name="destination" id="Select1" size="4">
<option>Mt. Kilimanjaro</option>
<option>Denali</option>
<option>Mt. Everest</option>
<option>Maui</option>
<option>Machu-Pichu</option>
</select></td>
<td align="center">1<input type="radio" name="travelers" value="1" class="rad"></br>2<input type="radio" name="travelers" value="2" class="rad"/></br>3<input type="radio" name="travelers" value="3" class="rad"/></br>4<input type="radio" name="travelers" value="4" class="rad"/></br>5<input type="radio" name="travelers" value="5" class="rad"/></br>6<input type="radio" name="travelers" value="6" class="rad"/></td>
<td align="center">
<select name="accomodation" id="Select2" size="3">
<option value=0>Tents</option>
<option>Yurts</option>
<option>Hostels</option>
<option>Hotels</option>
</select></td>
<td><table width="90%" align="center" cellpadding="2">
<tr><th>Trip</th><th>Num</th><th>Base</br>cost</th><th>Accom.</br>Surcharge</th><th>Total</th></tr>
<tr><td><input type="text" name="trip1" class="text" readonly></td><td><input type="text" name="num1" size="1" class="text" readonly></td><td><input type="text" name="cost1" class="text" readonly></td><td><input type="text" name="accom1" class="text" readonly></td><td><input type="text" name="total1" class="text" readonly></td></tr>
<tr><td><input type="text" name="trip2" class="text" readonly></td><td><input type="text" name="num2" size="1" class="text" readonly></td><td><input type="text" name="cost2" class="text" readonly></td><td><input type="text" name="accom2" class="text" readonly></td><td><input type="text" name="total2" class="text" readonly></td></tr>
<tr><td><input type="text" name="trip3" class="text" readonly></td><td><input type="text" name="num3" size="1" class="text" readonly></td><td><input type="text" name="cost3" class="text" readonly></td><td><input type="text" name="accom3" class="text" readonly></td><td><input type="text" name="total3" class="text" readonly></td></tr>
<tr><td><input type="text" name="trip4" class="text" readonly></td><td><input type="text" name="num4" size="1" class="text" readonly></td><td><input type="text" name="cost4" class="text" readonly></td><td><input type="text" name="accom4" class="text" readonly></td><td><input type="text" name="total4" class="text" readonly></td></tr>
</table></td></tr>
</tr>
<tr><td><input type="button" value="Add to Invoice" onclick="addit()"/></td><td><input type="button" value="Clear" onclick="deleteit()"/></td><td><input type="button" value="Buy Now" onclick="submitform()"/></td><td align="right">Total Sale:<input type="text" name="total" readonly/></td></tr>
</table></form>
</body>
</html>
I'm trying to move a list of names from a textbox (jim;bill;sam;cathy to a listbox. My code so will move the name to listbox but all one line. I need the list the names in the listbox so that can click them one at a time. Please see my code. How can I modify it to fill the list one name per line? function addItem(){ var tb = $get('<%=txtWhoTo.ClientID%>'); var rightListbox = document.getElementById('<%=lstNDisplay.ClientID%>'); if(strText.length > 0){ var nlength = rightListbox.options.length; rightListbox.options[nlength] = new Option(strText, nlength, false, false); } } I don't want remove any names from the listbox till I click the "OK" button and overwrite what is in the textbox. I am creating a recipe cookbook program. On the main page, I have a top frame (named "nav") and bottom frame (named "recipe_layout"). There is a listbox in the BOTTOM frame containing the recipe names, and a "View Recipe" button in the TOP frame. The user would select a recipe and then click the button to view the recipe in the bottom frame. I believe that I need to insert the code to make this work with the button (?), and I think my problem is that I'm not accessing the bottom frame correctly: CURRENT CODE FOR LISTBOX IN BOTTOM FRAME <form name="recipe_form" style="margin-top:30"> <select name="name_dropdown" multiple size="2"> <option selected="selected">Search byName</option> <option value="applepie.html">Apple Pie</option> CURRENT CODE FOR BUTTON IN TOP FRAME <input type="button" value="View Recipe" onclick="parent.recipe_layout.location.href='recipe_form.name_dropdown.options[selectedIndex].value'"> Thank you so much in advance!! Hi there, I have this form that validates a few textboxes & a dropdownlist. And when it is not filled in, the border of the textboxes and dropdownlist would turn red, followed by an alert message notifying which field have not been filled in. Else, the border will revert back to black, and the form will be submitted successfully. Right now, I would like to prevent the user from entering blanks (like entering a space to cheat the system). How should I tweak the codes to make it work? Javascript Code: function check(checkForm)
{
var fields = new Array("Name","Email Address", "Domain Name");
var index = new Array(),k=0;
for(var i=0;i<fields.length;i++)
{
var isFilled = false;
var c = document.getElementsByName(fields[i]);
for(var j = 0; j < c.length; j++)
if(!c[j].value == "")
{
isFilled = true;
c[j].className = "defaultColor";
}
else
{
c[j].className ="changeToRed";
}
if(!isFilled)
{
index[k++] = fields[i];
}
}
if(k>0)
{
joinComma = index.join(', ');
alert('The field(s) corresponding to '+ joinComma + ' is/are not selected.');
return false;
}
}
HTML Code: * Name: <input type="text" id="Text27" name="Name" /><br /> <br /> *Email Address: <input type="text" id="Text28" name="Email Address" /> @ <select id="Select5" name="Domain Name"> <option></option> <option>hotmail.com</option> <option>yahoo.com</option> </select> <input id="Submit5" type="submit" value="Submit" onclick="return check(checkForm)"/> |
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