Develop Reference

textarea clears when using innerhtml [duplicate]

I have a problem concerning multiple file uploads in javascript. I am trying to create my own multiple file upload by dynamically adding inputs. This is all easy as pie, but the problem is that whenever I add a new , my previous input-fields of the type "file" get reset.
If I remove the last lines of code where I alter the innerHTML of my parent div, the values of my do not get reset. Does anyone know how this problem can be solved? The javascript code can be found below. Thanks in advance.
if(document.getElementById("upload_queue").innerHTML.indexOf(_item) == -1)
{
var _row = "<tr id='queue_row_" + items_in_queue + "'>";
_row += "<td>";
_row += "<div class='remove_uploaded_image' onclick='remove_from_queue(" + items_in_queue + ")'></div>";
_row += "</td>";
_row += "<td>";
_row += _item;
_row += "</td>";
_row += "</tr>";
document.getElementById("upload_queue").innerHTML += _row;
document.getElementById("upload_image_" + items_in_queue).style.display = "none";
items_in_queue++;
document.getElementById("uploader_holder").innerHTML +=
'<input id="upload_image_' + items_in_queue +
'" name="upload_image_' + items_in_queue + '" accept="image/jpeg" type="file"' +
'onchange="add_to_upload_queue()" style="display: inline;" />';
}

Yeah... you're going to want to use appendChild instead of modifying the inner HTML:
var myInput = document.createElement("INPUT");
// do stuff to my input
var myContainer = document.getElementById("uploader_holder");
myContainer.appendChild(myInput);
That's the general gist of what you have to do - let me know if you need somethign more specific, but it looks like you've got a good hold on JS already... You're going to want to do that in almost all cases rather than setting inner HTML... So, building your TR as well... you'll have to append the TD to the TR, you'll have to append the TD with your input, you'll have to append your targeted table with the TR, etc.

How to check ajax data.d is null in append?

I am trying to append some data in html table using jquery that is working fine but when the data is null or empty i have to append another div to that html table.
Am trying like this
$("#table").append(data.d[i].one!=""?
"<td id='divs'>
<input id="+ data.d[i].one +" type=" + "checkbox" + " class=" + "cbCheck" + ">
<label for="+ data.d[i].one +"></label>
</td>":"<div></div>");
but it is not working please help me how to fix this...

Never understand why somebody use this
$("#table").append(data.d[i].one!=""?
"<td id='divs'>
<input id="+ data.d[i].one +" type=" + "checkbox" + " class=" + "cbCheck" + ">
<label for="+ data.d[i].one +"></label>
</td>":"<div></div>");
Instead of this:
//class declaration
function YourTableCell(name, value) {
this.input = document.createElement('input');
this.input.value = value;
this.input.name = name;
this.label = document.createElement('label');
this.label.text = 'My Label';
this.container = document.createElement('td');
this.container.appendChild(this.input);
this.container.appendChild(this.label);
}
//application buisness logic
if(data.d[i].one != ''){
var cell = new YourTableCell(data.d[i].name, data.d[i].value);
$("#table").append(cell.container);
} else {
$("#table").append(document.createElement('div'));
}
Using this approach you can incapsulate table cell building inside of your class and make your code much more readable and reusable. Also, as I see now, you are trying to append td inside of something with id #table, and look like it is incorrect, because you should append td inside of tr.
Also, using this you can get references to all objects such as inputs and avoid of $('input, select, textarea') selectors.

You could use something like this,
var html = '<div></div>';
if(data.d[i].one) {
html = '<td id="divs"><input id="' + data.d[i].one + '" type="checkbox" class="cbCheck"><label for="' + data.d[i].one + '"></label></td>';
}
("#table").append(html);

You could use :
if( data.d ){
//Your code
}
That will check if data.d is NULL or empty string "".
If you want to check in every iteration use the index i :
if( data.d[i] ){
//Your code
}
Hope this helps.
Take a look to https://stackoverflow.com/a/5515349/4281779.

Is it possible to create a table rows using JavaScript?

What I am trying to do is retrieve the information passed from a previous page through and display this within a table on another page.
I have currently got the following code:
PAGE NAME: EMBELLISHMENT
<script>
var embellishmentlist_var = embellishment;
var embellishment_explode = embellishmentlist_var.split("#");
for(var i = 1; i < embellishment_explode.length; i++)
{
var embellishment_explode_singleinfo = embellishment_explode.split("_");
//var table = '<tr><td>' + embellishment_explode[3] + '</td><td>' + data[7] + '</td><td>' + data[1] + '</td><td>' + data[2] + '</td><td>' + data[4] + '</td><td>' + data[5] + '</td>' + data1 + '<td>' + data[9] + '</td></tr>';
var table = '<tr><td></td></tr>';
$('#tableshow > tr').append( table );
//alert(embellishment_explode[4]);
}
}
</script>
<html>
<table>
<tr id="tableshow">
</tr>
</table>
The foreach can loop round a maximum of 6 times which I hope will create 6 rows within the table however this does not seem to be working. I currently have similar code to the above on another page however the HTML is slightly different. On that page the HTML looks like the following:
PAGE NAME: INFO
<table id="items_table">
<th>1</th>
<th>2</th>
///etc
</table>
The Javascript on that page insert rows into the table. This all works.
Therefore the only difference between the two pages is that on the EMBELLISHMENT page I want to create table rows within a table whereas on the INFO page I am creating the complete table.
Could I please have some assistance even if it is just to say it isn't possible.

You're trying to append table rows to a table row. That's not possible. You could only add rows to a table
HTML
<table id="tableshow"></table>
JS
for(var i = 0; i <= 6; i++){
$('#tableshow').append('<tr><td></td></tr>');
}

How do I create HTML table using jQuery dynamically?

I am trying to create a HTML table like the following dynamically using jQuery:
<table id='providersFormElementsTable'>
<tr>
<td>Nickname</td>
<td><input type="text" id="nickname" name="nickname"></td>
</tr>
<tr>
<td>CA Number</td>
<td><input type="text" id="account" name="account"></td>
</tr>
</table>
This is my actual table :
<table border="0" cellpadding="0" width="100%" id='providersFormElementsTable'> </table>
This is the method which will create tr and td elements taking id and labelText:
function createFormElement(id, labelText) {
// create a new textInputBox button using supplied parameters
var textInputBox = $('<input />').attr({
type: "text", id: id, name: id
});
// create a new textInputBox using supplied parameters
var inputTypeLable = $('<label />').append(textInputBox).append(labelText);
// append the new radio button and label
$('#providersFormElementsTable').append(inputTypeLable).append('<br />');
}
I also have a value which will be shown as tool tip.
Please help me to create a table dynamically with tool tip and tr td.
EDIT:
I have almost done with the following code:
function createProviderFormFields(id, labelText,tooltip,regex) {
var tr = '<tr>' ;
// create a new textInputBox
var textInputBox = $('<input />').attr({
type: "text",
id: id, name: id,
title: tooltip
});
// create a new Label Text
tr += '<td>' + labelText + '</td>';
tr += '<td>' + textInputBox + '</td>';
tr +='</tr>';
return tr;
}
Here label is coming properly and the input box is not coming and it shows [object Object] where the text box has to come...
When I printed the textInputBox using console.log, I get the following:
[input#nickname, constructor: function, init: function, selector: "", jquery: "1.7.2", size: function…]
What could be the issue?
Thanks to #theghostofc who showed me path... :)

You may use two options:
createElement
InnerHTML
Create Element is the fastest way (check here.):
$(document.createElement('table'));
InnerHTML is another popular approach:
$("#foo").append("<div>hello world</div>"); // Check similar for table too.
Check a real example on How to create a new table with rows using jQuery and wrap it inside div.
There may be other approaches as well. Please use this as a starting point and not as a copy-paste solution.
Edit:
Check Dynamic creation of table with DOM
Edit 2:
IMHO, you are mixing object and inner HTML. Let's try with a pure inner html approach:
function createProviderFormFields(id, labelText, tooltip, regex) {
var tr = '<tr>' ;
// create a new textInputBox
var textInputBox = '<input type="text" id="' + id + '" name="' + id + '" title="' + tooltip + '" />';
// create a new Label Text
tr += '<td>' + labelText + '</td>';
tr += '<td>' + textInputBox + '</td>';
tr +='</tr>';
return tr;
}

An example with a little less stringified html:
var container = $('#my-container'),
table = $('<table>');
users.forEach(function(user) {
var tr = $('<tr>');
['ID', 'Name', 'Address'].forEach(function(attr) {
tr.append('<td>' + user[attr] + '</td>');
});
table.append(tr);
});
container.append(table);

Here is a full example of what you are looking for:
<html>
<head>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script>
$( document ).ready(function() {
$("#providersFormElementsTable").html("<tr><td>Nickname</td><td><input type='text' id='nickname' name='nickname'></td></tr><tr><td>CA Number</td><td><input type='text' id='account' name='account'></td></tr>");
});
</script>
</head>
<body>
<table border="0" cellpadding="0" width="100%" id='providersFormElementsTable'> </table>
</body>

I understand you want to create stuff dynamically. That does not mean you have to actually construct DOM elements to do it. You can just make use of html to achieve what you want .
Look at the code below :
HTML:
<table border="0" cellpadding="0" width="100%" id='providersFormElementsTable'></table>
JS :
createFormElement("Nickname","nickname")
function createFormElement(labelText, id) {
$("#providersFormElementsTable").html("<tr><td>Nickname</td><td><input type='text' id='"+id+"' name='nickname'></td><lable id='"+labelText+"'></lable></td></tr>");
$('#providersFormElementsTable').append('<br />');
}
This one does what you want dynamically, it just needs the id and labelText to make it work, which actually must be the only dynamic variables as only they will be changing. Your DOM structure will always remain the same .
WORKING DEMO:
Moreover, when you use the process you mentioned in your post you get only [object Object]. That is because when you call createProviderFormFields , it is a function call and hence it's returning an object for you. You will not be seeing the text box as it needs to be added . For that you need to strip individual content form the object, then construct the html from it.
It's much easier to construct just the html and change the id s of the label and input according to your needs.

FOR EXAMPLE YOU HAVE RECIEVED JASON DATA FROM SERVER.
var obj = JSON.parse(msg);
var tableString ="<table id='tbla'>";
tableString +="<th><td>Name<td>City<td>Birthday</th>";
for (var i=0; i<obj.length; i++){
//alert(obj[i].name);
tableString +=gg_stringformat("<tr><td>{0}<td>{1}<td>{2}</tr>",obj[i].name, obj[i].age, obj[i].birthday);
}
tableString +="</table>";
alert(tableString);
$('#divb').html(tableString);
HERE IS THE CODE FOR gg_stringformat
function gg_stringformat() {
var argcount = arguments.length,
string,
i;
if (!argcount) {
return "";
}
if (argcount === 1) {
return arguments[0];
}
string = arguments[0];
for (i = 1; i < argcount; i++) {
string = string.replace(new RegExp('\\{' + (i - 1) + '}', 'gi'), arguments[i]);
}
return string;
}

Create an editable HTML table

I'm trying to follow the prof's example of creating an editable table on double clicking an entry in a HTML table. So my data method looks like this:
function formatData(message) {
var str = "<table border=1>";
for (var i = 0; i < message.length; i++) {
str += "<tr>" + "<td class='editable'>" + message[i].id + "</td>" +
"<td>" + message[i].name + "</td>" +
"<td class='editable'>" + message[i].url + "</td>" +
"<td class='editable'>" + message[i].desc + "</td>" +
"<td>" + "<a href='#' onclick='deleteRequest(this); return false' id='" + message[i].id + "'>delete</a>" + "</td>" +
" + "</td>" + "</tr>";
}
str += "</table>";
return str;
}
I bind a function edit() to the tags whose attributes are of class 'editable.' Then my edit function does:
function edit(elm) {
/* check to see if we are already editing */
if (elm.firstChild.tagName && elm.firstChild.tagName.toUpperCase() == "INPUT")
return;
/* save original content */
var orig = elm.innerHTML;
/* create edit field */
var input = document.createElement("input");
input.type = "text";
input.value = elm.innerHTML;
input.size = 20;
/* convert content to editable */
elm.innerHTML = '';
elm.appendChild(input);
/* position cursor and focus */
if (input.selectionStart)
input.selectionStart = input.selectionEnd = 0;
else
{
var range = input.createTextRange();
range.move("character", 0);
range.select();
}
input.focus();
/* set save trigger callback */
input.onblur = function(){save(elm, input,orig);};
}
I'm confused on how I would save the information and pass it to the web server to update. I need the id, url, and desc to update the web server. Since they double click on a table entry, that just gives me the element at that value, but I don't have the id. Do I change two lines in my formatData to:
"<td class='editable' id='" + message[i].id + "'>" + message[i].url + "</td>" +
"<td class='editable' id='" + message[i].id +"'>" + message[i].desc + "</td>" +
So that way I can ask the webserver for the url and desc with that id value? That seems like a bad way to do it since now two have the same id, but I'm not sure since I'm relatively new to AJAX, HTML, Javascript. Thanks.

Eh, I'll push a bit of help your way.
Basically, from what I gather you're binding a function to each td tag with editable. Well, you can determine the id inside that function.
B/c you can select the parentNode of the current node being edited, and then select the firstChild of that parentNode, so parentNode.firstChild which should be the first td, since remember on each row each of your td's will have a single parent tr. Then you select the firstChild of that td node, which is the text node it contains, and then grab its value, the id. So parentNode.firstChild.firstChild.nodeValue
This might not follow exactly with your code, as you only show parts of it... but this is the gist of the idea. Basically selecting nodes through the DOM and pulling the right one based on the current context.
I'd suggest playing around with it till you get it.
Here's a little bit of sample code for you to think about if you get stuck still. It's meant to be brief.
Basically, each middle column is tagged with the test function on the onfocus event (clicking inside the input). So it's on the input itself, and it pulls the parentNode td, then the next parentNode tr, then the firstChild of tr which is the first td then the firstChild of the first td which is the input on that row, then finally that input's value attribute.
<script>
function test(elem) {
alert( elem.parentNode.parentNode.firstChild.firstChild.value );
}
</script>
<table>
<tr><td><input value="1"/></td><td><input value="stuff" onfocus="test(this)"/></td><td>other stuff</td></tr>
<tr><td><input value="2"/></td><td><input value="stuff3" onfocus="test(this)"/></td><td>other stuff</td></tr>
<tr><td><input value="3"/></td><td><input value="stuff2" onfocus="test(this)"/></td><td>other stuff</td></tr>
</table>