How to populate drop down value in java script?
<script type="text/javascript">
var creatLimit = 5;
var fCount=0;
function addFileElement()
{
if(fCount <creatLimit )
{
/*var option = document.createElement("option");
option.value = '0'; option.innerHTML = ' -- '; select.appendChild(option);
option.value = '1'; option.innerHTML = 'item 1'; select.appendChild(option);
option.value = '2'; option.innerHTML = 'item 2'; select.appendChild(option);*/
var fObject = document.getElementById("agencySection");
//var addButton = document.createElement(label);
var addButton = document.createElement("select");
var agency = document.getElementById("agencyLabelSection");
var addButton2 = document.createElement("option");
//<label for="firstname">First name:</label>
//<label for="agencyLabelSection">agency:</label>
//<input type="text" name="agencyLabelSection" id="agencyLabelSection" />
addButton.type= "select";
addButton2.type= "option";
//for (var fObject in addButton) {
addButton.name="userRoleBeanList["+fCount+"]";
addButton.setAttribute("class", "normal");
addButton.style.width= "250px";
addButton.onkeydown = function(){
blur();
}; //}
//document.write("<p> Agency:</p>");
addButton2.name="userRoleBeanList["+fCount+"]";
addButton2.setAttribute("class", "normal");
addButton2.onkeydown = function(){
blur();
};
var o2 = document.createElement("br");
var o3 = document.createElement("br");
fObject.appendChild(addButton);
fObject.appendChild(o2);
fObject.appendChild(o3);
agency.appendChild(addButton2);
var fObject1 = document.getElementById("roleSection");
var addButton1 = document.createElement("select");
var role = document.getElementById("roleLabelSection");
var addButton3 = document.createElement("option");
addButton1.type= "select";
addButton3.type= "option";
addButton1.name="userRoleBeanList["+fCount+"]";
addButton1.setAttribute("class", "normal");
addButton1.style.width= "250px";
addButton1.onkeydown = function(){
blur();
};
var o4 = document.createElement("br");
var o5 = document.createElement("br");
fObject1.appendChild(addButton1);
fObject1.appendChild(o4);
fObject1.appendChild(o5);
role.appendChild(addButton3);
fCount++;
}
}
</script>
the same question was asked here and the answer is just
ddl.options[i] = theOption;
this code example show how to add variables to the drop down:
var ddl = document.getElementById( 'myDropdown' );
var theOption = new Option;
var x;
var i;
for(i = 0; i < 999; i++) {
x = i + 1;
theOption.text = x;
theOption.value = x;
ddl.options[i] = theOption;
}
if you'll edit your question so we'll know what's the drop down list name and needed values are then i can help you more
Related
I am trying to add option in select tag but its not working.
container.appendChild(document.createTextNode("location"));
var select = document.createElement("select");
var option1 = document.createElement("option");
option1.text = "mumbai";
option1.value = "mumbai";
container.appendChild(option1);
container.appendChild(select);
You're adding the option to the container and not to the select. So change container.appendChild(option1); to select.appendChild(option1);:
var container = document.getElementById('elem')
container.appendChild(document.createTextNode("location"));
var select = document.createElement("select");
container.appendChild(select);
var counter = 0;
document.getElementById("btn").addEventListener("click", function() {
counter++;
var option1 = document.createElement("option");
option1.text = "mumbai" + counter;
option1.value = "mumbai" + counter;
select.appendChild(option1);
});
<div id='elem'>
</div>
<button name='btn' id='btn'>Add</button>
An alternate way is to add to options list of select.
var select = document.getElementById('select');
var options = select.options;
options[options.length] = new Option("Option 1", "1");
options[options.length] = new Option("Option 2", "2");
<select id="select"></select>
HTMLSelectElement.add() is another possibility.
var sel = document.createElement("select");
var opt1 = document.createElement("option");
var opt2 = document.createElement("option");
opt1.value = "1";
opt1.text = "Option: Value 1";
opt2.value = "2";
opt2.text = "Option: Value 2";
sel.add(opt1, null);
sel.add(opt2, null);
document.body.appendChild(sel);
You have add option1 element to select element instead of container element.
Change line:
container.appendChild(option1);
To:
select.appendChild(option1);
I have made a dynamically generated a form which creates some selects and input boxes.
I need to do a form submit and need all the data from the selects and inputs into individual variables.
The code goes like this:
HTML CODE :
<body>
<div id="main1">
<input type="button" onclick="addSelectBox ()" name="clickme" value="+" />
<input type="button" onclick="removeSelect();" value="-" />
<input type="button" onclick="xmlData();" value="XML" />
</div>
<form id="autoPopulation_form">
<div id="main"></div>
</form>
JS CODE:
var selele = 0;
var brindex = 0;
function addSelectBox() {
selele = selele + 1;
var spantag = document.createElement("span");
spantag.setAttribute("id", selele);
var parentDiv = document.getElementById("main");
var selectElement = document.createElement("select");
var selectElement1 = document.createElement("select");
var selectElement2 = document.createElement("select");
var selectElement3 = document.createElement("select");
var textbox = document.createElement('input');
textbox.setAttribute("name", "text" + selele);
var arr = new Array("Stocks", "MutualFunds");
var arr2 = new Array("individual", "401k", "IRA");
var arr3 = new Array("contains", "equals");
var arr4 = new Array("scrapedaccounttype", "scrapedtransactiontype");
for (var i = 0; i < arr.length; i++) {
var option = new Option(arr[i]);
selectElement.options[selectElement.options.length] = option;
selectElement.setAttribute("name", "tag" + selele);
}
for (var i = 0; i < arr2.length; i++) {
var option = new Option(arr2[i]);
selectElement1.options[selectElement1.options.length] = option;
selectElement1.setAttribute("name", "acctType" + selele);
}
for (var i = 0; i < arr3.length; i++) {
var option = new Option(arr3[i]);
selectElement2.options[selectElement2.options.length] = option;
selectElement2.setAttribute("name", "compare" + selele);
}
for (var i = 0; i < arr4.length; i++) {
var option = new Option(arr4[i]);
selectElement3.options[selectElement3.options.length] = option;
selectElement3.setAttribute("name", "match_name" + selele);
}
spantag.appendChild(selectElement);
spantag.appendChild(selectElement1);
spantag.appendChild(selectElement2);
spantag.appendChild(selectElement3);
spantag.appendChild(textbox);
parentDiv.appendChild(spantag);
linebreak();
};
function removeSelect() {
var parentDiv = document.getElementById("main");
var removetg = document.getElementById(selele);
if (selele != 1) {
parentDiv.removeChild(removetg);
selele = selele - 1;
} else {
parentDiv.removeChild(removetg);
parentDiv.innerHTML = "";
selele = selele - 1;
}
removeBreak();
};
function linebreak() {
brindex = brindex + 1;
var brtag = document.createElement("br");
brtag.setAttribute("id", brindex);
var parentDiv = document.getElementById("main");
parentDiv.appendChild(brtag);
};
function linespace() {
var myElement = document.createElement("span");
myElement.innerHTML = "           ";
var parentDiv = document.getElementById("main");
parentDiv.appendChild(myElement);
};
function removeBreak() {
var myElement = document.getElementById(brindex);
var parentDiv = document.getElementById("main");
brindex = brindex - 1;
parentDiv.removeChild(myElement);
};
function xmlData() {
xmlDoc = loadXMLDoc("data.xml");
newel = xmlDoc.createElement("edition");
x = xmlDoc.getElementsByTagName("span")[0];
x.appendChild(newel);
};
JSFIDDLE FOR THE SAME :
What I basically want to do is I need all the textboxes with name "text1","text2","text3 in different var's (variables).
I have heard about the jQuery .serialize, but would it help my cause and it would be good if anybody can show me the same in my Fiddle.
use FormData() method to serialize your form:
document.getElementByid('autoPopulation_form').onSubmit = function(){
var frmData = new FormData(this);
console.log(frmData);
};
output of it (tested with clicked + one time):
?tag1=Stocks&acctType1=individual&compare1=contains
&match_name1=scrapedaccounttype
&text1=gsdfgsdgfsgsdfgsdf"
Note: You have to have a submit button to submit the form.
Fiddle
Fiddle with method post
I have made a simple dynamic form to generate input boxes.
<body>
<div id="main1">
<input type="button" onclick="addSelectBox ()" name="clickme" value="+"/>
<input type="button" onclick="removeSelect();" value="-"/>
<input type="button" onclick="xmlData();" value="XML" />
</div>
<div id="main">
</div>
</body>
Here's the javascript code:
(function () {
var selele=0;
var brindex=0;
function addSelectBox() {
selele = selele + 1;
var spantag = document.createElement("span");
spantag.setAttribute("id", selele);
var parentDiv = document.getElementById("main");
var selectElement = document.createElement("select");
var selectElement1 = document.createElement("select");
var selectElement2 = document.createElement("select");
var selectElement3 = document.createElement("select");
var arr = new Array("Stocks", "MutualFunds");
var arr2 = new Array("individual", "401k", "IRA");
var arr3 = new Array("contains", "equals");
var arr4 = new Array("scrapedaccounttype", "scrapedtransactiontype");
var textbox = document.createElement('input');
for (var i = 0; i < arr.length; i++) {
var option = new Option(arr[i]);
selectElement.options[selectElement.options.length] = option;
}
for (var i = 0; i < arr2.length; i++) {
var option = new Option(arr2[i]);
selectElement1.options[selectElement1.options.length] = option;
}
for (var i = 0; i < arr3.length; i++) {
var option = new Option(arr3[i]);
selectElement2.options[selectElement2.options.length] = option;
}
for (var i = 0; i < arr4.length; i++) {
var option = new Option(arr4[i]);
selectElement3.options[selectElement3.options.length] = option;
}
spantag.appendChild(selectElement);
spantag.appendChild(selectElement1);
spantag.appendChild(selectElement2);
spantag.appendChild(selectElement3);
spantag.appendChild(textbox);
parentDiv.appendChild(spantag);
linebreak();
};
function removeSelect() {
var parentDiv = document.getElementById("main");
var removetg = document.getElementById(selele);
if (selele != 1) {
parentDiv.removeChild(removetg);
selele = selele - 1;
} else {
parentDiv.removeChild(removetg);
parentDiv.innerHTML = "";
selele = selele - 1;
}
removeBreak();
};
function linebreak() {
brindex = brindex + 1;
var brtag = document.createElement("br");
brtag.setAttribute("id", brindex);
var parentDiv = document.getElementById("main");
parentDiv.appendChild(brtag);
};
function linespace() {
var myElement = document.createElement("span");
myElement.innerHTML = "           ";
var parentDiv = document.getElementById("main");
parentDiv.appendChild(myElement);
};
function removeBreak() {
var myElement = document.getElementById(brindex);
var parentDiv = document.getElementById("main");
brindex = brindex - 1;
parentDiv.removeChild(myElement);
};
function xmlData() {
xmlDoc = loadXMLDoc("data.xml");
newel = xmlDoc.createElement("edition");
x = xmlDoc.getElementsByTagName("span")[0];
x.appendChild(newel);
};
});
I can't get it to work on jsFiddle, the buttons don't work.
They work fine if I embed it in a tag.
Can anybody help me fix them.
EDIT: I guess i added anonymously because I wanted the var selele and brindex globally for all these functions.
I have made the code changes.
JSFIDDLE
Your functions are within an anonymous function and thus not available from outside.
First remove the code from the anonymous function (see here: http://jsfiddle.net/uH84W/6/), then fix the console errors you get (I assume that's not the whole code).
function addSelectBox() {...
In your fiddle you select onload but you change onload to no warp-in or no warp-in now it's work fine
I am extremely new to JavaScript. I am trying to control the options inside one listbox (called Aggregator) using the selected value of another (called Product). Below is the code I have written so far.
Now when I load the HTML page the code I have written to control the text boxes (using txt, txt2, txt3) does not work either now.
Javascript
function pGo() {
var x = document.getElementById("Product").value;
var txt = "";
var txt2 = "";
var txt3 = "";
var list = document.getElementById("Aggregator");
var aggrs = new Array();
aggrs[0] = "h";
aggrs[1] = "e";
aggrs[2] = "l";
aggrs[3] = "l";
aggrs[4] = "l";
aggrs[5] = "o";
aggrs[6] = "o";
var length = aggrs.length;
var element = null;
if (x == "HII") {
txt = "Full ";
txt2 = "/";
txt3 = "/";
for (var i = 0; i < 5; i++)){
element = aggrs[i]
var opt = document.createElement("option");
opt.innerText = element;
opt.setAttribute(element, 'newvalue');
list.appendChild(opt);
}
}
else if (x == "DLG"){
txt = "Full";
txt2 = "/T";
txt3 = "/responses/";
for (var i = 0; i < 1; i++)){
element = aggrs[i]
var opt = document.createElement("option");
opt.innerText = element;
opt.setAttribute(element, 'newvalue');
list.appendChild(opt);
}
}
else if (x == "TBB"){
txt = "Full ";
txt2 = "/Trams";
txt3 = "/respo";
for (var i = 0; i < 1; i++)){
element = aggrs[i]
var opt = document.createElement("option");
opt.innerText = element;
opt.setAttribute(element, 'newvalue');
list.appendChild(opt);
}
element = aggrs[6]
var opt = document.createElement("option");
opt.innerText = element;
opt.setAttribute(element, 'newvalue');
list.appendChild(opt);
}
form.elements.calcType.value = txt;
form.elements.transform.value = txt2;
form.elements.calcResponse.value = txt3;
}
HTML
product
<select id="Product" onchange = "pGo()">
<option>HII</option>
<option>DLG</option>
<option>TBB</option>
</select><div>
<script type = "text/javascript">
aggregator
<select name = "Aggregator">
</select><br/><br/>
Other text boxes emitted
I need the Aggregator to display certain values from the aggrs list depending on the value selected in the Product select:
HII : [0,1,2,3,4,5]
DLG : [0,1]
TBB : [0,1,6]
Don't go learning jQuery if you're having trouble with basic JavaScript. You'll have worse problems with jQuery.
For a start, you're asking for the ID "Aggregator":
var list = document.getElementById("Aggregator");
when you don't have an object with the ID "Aggregator":
<select name = "Aggregator"></select>
First off, there are a LOT of syntax errors in your code. I have added comments where I made those changes.
There was no id element "Aggregator" so I changed your markup:
product
<select id="Product" onchange="pGo();">
<option>Pick one</option>
<option>HII</option>
<option>DLG</option>
<option>TBB</option>
</select>
<div>aggregator
<select id="Aggregator" name="Aggregator"></select>
<br/>
<br/>
</div>
You had a lot of duplicate code (still is some) and other issues (see comments)
// function to remove duplicate code
function addOptions(list, aggrs, limit) {
var i = 0;
// fix issue where option list did not empty on new select
for (; i < list.length; i++) {
list.remove(i);
}
for (i = 0; i < limit; i++) { // fix extra ")"
var opt = document.createElement("option");
element = aggrs[i]; //missing semicolon
opt.text = element; // use standard form not innerHtml
opt.value = element; // you had no value
opt.setAttribute(element, 'newvalue');
list.appendChild(opt);
}
}
function pGo() {
var x = document.getElementById("Product").value;
var txt = "";
var txt2 = "";
var txt3 = "";
var list = document.getElementById("Aggregator");
var aggrs = ["h", "e", "l", "l", "l", "o", "o"]; //simpler array
var length = aggrs.length;
var element = null;
if (x == "HII") {
txt = "Full ";
txt2 = "/";
txt3 = "/";
addOptions(list, aggrs, 5);
} else if (x == "DLG") {
txt = "Full";
txt2 = "/T";
txt3 = "/responses/";
addOptions(list, aggrs, 1);
} else if (x == "TBB") {
txt = "Full ";
txt2 = "/Trams";
txt3 = "/respo";
addOptions(list, aggrs, 1);
// strange additional option added
var oneAggr = [];
oneAggr[0] = aggrs[6];
addOptions(list, oneAggr, 1);
}
// form.elements.calcType.value = txt; // commented out due to not existing
// form.elements.transform.value = txt2;
// form.elements.calcResponse.value = txt3;
}
This is NOT really pretty (OK it is somewhat strange the options you set) even yet but at least it should work.
Sample to work with: http://jsfiddle.net/Qc4yD/
I have wrote a .js file in wich I have create a table, buttons, etc. My aplication is a photo album and everything is created on this file, the html build up properly with all the buttons but when I give click on the buttons, the buttons don't change the images.
The code of the .jp file is:
var dp = document.createElement("img");
function changeImage()
{
var list = document.getElementById('optionlist');
dp.src = list.options[list.selectedIndex].value;
alert(dp.src);
}
function prevImage()
{
var list = document.getElementById('optionlist');
alert("Llega a prev");
if(list.selectedIndex == 0)
{
list.selectedIndex = list.options.length-1;
}
else
{
list.selectedIndex--;
}
changeImage();
}
function firstImage()
{
var list = document.getElementById('optionlist');
list.selectedIndex = 0;
changeImage();
}
function nextImage()
{
var list = document.getElementById('optionlist');
if(list.selectedIndex == list.options.length-1)
{
list.selectedIndex = 0;
}
else
{
list.selectedIndex++;
}
changeImage();
}
function lastImage()
{
var list = document.getElementById('optionlist');
list.selectedIndex = 9;
changeImage();
}
function start() {
var txt1,txt2,txt3,txt4,txt5,txt6,txt7,txt8,txt9,txt10,txt11;
//get the reference for the body
var body = document.getElementsByTagName("body")[0];
//alert("creates a <table> element and a <tbody> element");
var tbl = document.createElement("table");
tbl.setAttribute("align","center");
tbl.setAttribute("border","0");
var tbl2 = document.createElement("table");
tbl2.setAttribute("align","center");
tbl2.setAttribute("border","0");
var tblBody = document.createElement("tbody");
var tblBody2 = document.createElement("tbody");
//alert("creating <p>");
txt11 = document.createTextNode(" JavaScript Module ");
var downtxt = document.createElement("p");
downtxt.setAttribute("align","center");
downtxt.appendChild(txt11);
//alert("creates <input> elements");
var first = document.createElement("input");
first.setAttribute("value", " << ");
first.setAttribute("type", "button");
first.onClick = firstImage;
var previous = document.createElement("input");
previous.setAttribute("type", "button");
previous.setAttribute("value", " < ");
previous.onClick = "JavaScript:prevImage()";
var last = document.createElement("input");
last.setAttribute("value", " >> ");
last.setAttribute("type", "button");
last.onClick = "JavaScript:lastImage()";
var next = document.createElement("input");
next.setAttribute("value", " > ");
next.setAttribute("type", "button");
next.onClick = "JavaScript:nextImage()";
//alert("creating images options and <select>");
var op1 = document.createElement("option");
var op2 = document.createElement("option");
var op3 = document.createElement("option");
var op4 = document.createElement("option");
var op5 = document.createElement("option");
var op6 = document.createElement("option");
var op7 = document.createElement("option");
var op8 = document.createElement("option");
var op9 = document.createElement("option");
var op10 = document.createElement("option");
op1.setAttribute("value","1.jpg");
txt1 = document.createTextNode("First Image");
op1.appendChild(txt1);
op2.setAttribute("value","2.jpg");
txt2 = document.createTextNode("Second Image");
op2.appendChild(txt2);
op3.setAttribute("value","3.jpg");
txt3 = document.createTextNode("Third Image");
op3.appendChild(txt3);
op4.setAttribute("value","4.jpg");
txt4 = document.createTextNode("Fourth Image");
op4.appendChild(txt4);
op5.setAttribute("value","5.jpg");
txt5 = document.createTextNode("Fifth Image");
op5.appendChild(txt5);
op6.setAttribute("value","6.jpg");;
txt6 = document.createTextNode("Sixth Image");
op6.appendChild(txt6);
op7.setAttribute("value","7.jpg");
txt7 = document.createTextNode("Seventh Image");
op7.appendChild(txt7);
op8.setAttribute("value","8.jpg");
txt8 = document.createTextNode("Eight Image");
op8.appendChild(txt8);
op9.setAttribute("value","9.jpg");
txt9 = document.createTextNode("Ninth Image");
op9.appendChild(txt9);
op10.setAttribute("value","10.jpg");
txt10 = document.createTextNode("Tenth Image");
op10.appendChild(txt10);
var slct = document.createElement("select");
slct.setAttribute("id","optionlist");
slct.onChange = changeImage;
slct.appendChild(op1);
slct.appendChild(op2);
slct.appendChild(op3);
slct.appendChild(op4);
slct.appendChild(op5);
slct.appendChild(op6);
slct.appendChild(op7);
slct.appendChild(op8);
slct.appendChild(op9);
slct.appendChild(op10);
//alert("Creating rows and columns for the tables");
var td1 = document.createElement("td");
td1.setAttribute("align","center");
td1.setAttribute("colspan","3");
dp.setAttribute("name","mainimage");
dp.setAttribute("border","1");
dp.setAttribute("align","center");
td1.appendChild(dp);
var tr1 = document.createElement("tr");
tr1.setAttribute("align","center");
tr1.appendChild(td1);
var td2 = document.createElement("td");
td2.setAttribute("align","left");
td2.appendChild(first);
td2.appendChild(previous);
var td3 = document.createElement("td");
td3.setAttribute("align","center");
td3.appendChild(slct);
var td4 = document.createElement("td");
td4.setAttribute("align","right");
td4.appendChild(next);
td4.appendChild(last);
var tr2 = document.createElement("tr");
tr2.appendChild(td2);
tr2.appendChild(td3);
tr2.appendChild(td4);
//alert("adding all the elements to the table");
tblBody2.appendChild(tr1);
tblBody.appendChild(tr2);
tbl2.appendChild(tblBody2);
tbl.appendChild(tblBody);
//alert("adding table to <body>");
body.appendChild(tbl2);
body.appendChild(tbl);
body.appendChild(downtxt);
changeImage();
}
and the html code is:
<html>
<head>
<title>Photo Album </title>
<style>
p, td {color:blue;font-family:verdana;font-size:8pt}
h1 {color:black;font-family:verdana;font-size:14pt}
</style>
<script type = "text/javascript" src = "PAScript.js" language = "javascript">
</script>
</head>
<body onLoad="start()" bgcolor = "grey">
</body>
</html>
It somebody can help me please, I don't have idea how to make work the buttons of my application
Thanks
When you're setting onclick by javascript, it's a function reference instead of a string.
previous.onClick = "JavaScript:prevImage()";
should be
previous.onclick = prevImage;
Fix your other assignments to follow this pattern. Also onclick is all lower case and is case sensitive.
As long as we're on the topic, the preferred way to register event handlers is
standards compliant browsers
previous.addEventListener('click', prevImage, false);
IE
previous.attachEvent('onclick', prevImage);