Please help me to explain about the div element of HTML be able to have attribute name or not?
for example :
I put attribute name inside it, Than I got warning.
Is it uneccessary to add attribute name?
Thank in advance
The name attribute is used with input elements to set the key of the submitted value. If you need to 'name' a div in order to address it from javascript or otherwise uniquely identify it on a page, you can use the id attribute. That said, most modern browsers will handle a name attribute on a div with no issues but it does not conform to HTML standards.
name is an attribute that is used for INPUT type elements. In a DOM a name is unique and you can use to access the element from JS or the backend scripting language.
For example. Lets say you have this form:
<form action ='process.php' method='POST'>
Username: <input type="text" name="un" /> <br/>
Password: <input type="password" name="pwd"/> <br/>
<input type="submit" name="submit" />
</form>
Now, lets say I put as username: Abe and as password: test
In the process.php file I can do:
echo $_POST['un'];
echo $_POST['pwd'];
And I will echo out the values for both fields.
And this brings an important point.
IDs and Names are not the SAME in HTML, IDs are used to quickly identify and add style to elements in the DOM whereas names are used by the backend script to process the form (PHP, .Net, etc).
Let's assume I have the following structure
<table>
<tr>
<td>
<input type="text" name="name" />
</td>
<td>
<input type="submit" name="submit" />
</td>
</tr>
...
</table>
I need to have forms in each row, but because my inputs are in other <td> elements, I don't know how to place the <form> element (of course I can use colspan="2" and put the form into it, but I need to have two other <td> elements).
How can I solve this?
UPDATE: I don't want to use Javascript to solve this problem :)
Just place the tags around the table:
<form action="...">
<table>
...
</table>
</form>
This form will "handle" all the input fields inside the table.
The best solution: Use divs instead of tables.
Other solution, create a separate table for each row. That way, you can put each table in a separate form and put the input fields in the td-s, so they will be inside the form too.
You can make a table, and in the table cells, create a form, and in the form, create another table:
<table>
<tr><td>
<form>
<table>
<tr><td>
....
</tr></td>
</table>
</form>
</tr></td>
</table>
I am pretty sure it is not possible to mix and match inputs in a form if the forms don't follow each other sequentially i.e. "assign" an input to a form.
I'm trying to create a table where each row is a form. I want that each input is in a different table division, but I still need that for example, all first inputs belong to the same table head and so on.
What I'm trying to do is an editable grid, more or less this:
<table>
<tr>
<form method="POST" action="whatever">
<td><input type="text"/></td>
<td><input type="text"/></td>
</form>
</tr>
<tr>
<form method="POST" action="whatever">
<td><input type="text"/></td>
<td><input type="text"/></td>
</form>
</tr>
</table>
But apparently I cannot arrange the tags in that way (or so is what the w3c validator said).
Any good way to do this?
If you want a "editable grid" i.e. a table like structure that allows you to make any of the rows a form, use CSS that mimics the TABLE tag's layout: display:table, display:table-row, and display:table-cell.
There is no need to wrap your whole table in a form and no need to create a separate form and table for each apparent row of your table.
Try this instead:
<style>
DIV.table
{
display:table;
}
FORM.tr, DIV.tr
{
display:table-row;
}
SPAN.td
{
display:table-cell;
}
</style>
...
<div class="table">
<form class="tr" method="post" action="blah.html">
<span class="td"><input type="text"/></span>
<span class="td"><input type="text"/></span>
</form>
<div class="tr">
<span class="td">(cell data)</span>
<span class="td">(cell data)</span>
</div>
...
</div>
The problem with wrapping the whole TABLE in a FORM is that any and all form elements will be sent on submit (maybe that is desired but probably not). This method allows you to define a form for each "row" and send only that row of data on submit.
The problem with wrapping a FORM tag around a TR tag (or TR around a FORM) is that it's invalid HTML. The FORM will still allow submit as usual but at this point the DOM is broken. Note: Try getting the child elements of your FORM or TR with JavaScript, it can lead to unexpected results.
Note that IE7 doesn't support these CSS table styles and IE8 will need a doctype declaration to get it into "standards" mode: (try this one or something equivalent)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
Any other browser that supports display:table, display:table-row and display:table-cell should display your css data table the same as it would if you were using the TABLE, TR and TD tags. Most of them do.
Note that you can also mimic THEAD, TBODY, TFOOT by wrapping your row groups in another DIV with display: table-header-group, table-row-group and table-footer-group respectively.
NOTE: The only thing you cannot do with this method is colspan.
Check out this illustration: http://jsfiddle.net/ZRQPP/
If all of these rows are related and you need to alter the tabular data ... why not just wrap the entire table in a form, and change GET to POST (unless you know that you're not going to be sending more than the max amount of data a GET request can send).
(That's assuming, of course, that all of the data is going to the same place.)
<form method="POST" action="your_action">
<table>
<tr>
<td><input type="text" name="r1c1" value="" /></td>
<!-- ... snip ... -->
</tr>
<!-- ... repeat as needed ... -->
</table>
</form>
You may have issues with column width, but you can set those explicitly.
<table>
<tr>
<td>
<form>
<table>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>
</form>
</td>
</tr>
<tr>
<td>
<form>
<table>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>
</form>
</td>
</tr>
</table>
You may want to also consider making it a single form, and then using jQuery to select the form elements from the row you want, serialize them, and submit them as the form.
See: http://api.jquery.com/serialize/
Also, there are a number of very nice grid plugins:
http://www.google.com/search?q=jquery+grid&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
If using JavaScript is an option and you want to avoid nesting tables, include jQuery and try the following method.
First, you'll have to give each row a unique id like so:
<table>
<tr id="idrow1"><td> ADD AS MANY COLUMNS AS YOU LIKE </td><td><button onclick="submitRowAsForm('idrow1')">SUBMIT ROW1</button></td></tr>
<tr id="idrow2"><td> PUT INPUT FIELDS IN THE COLUMNS </td><td><button onclick="submitRowAsForm('idrow2')">SUBMIT ROW2</button></td></tr>
<tr id="idrow3"><td>ADD MORE THAN ONE INPUT PER COLUMN</td><td><button onclick="submitRowAsForm('idrow3')">SUBMIT ROW3</button></td></tr>
</table>
Then, include the following function in your JavaScript for your page.
<script>
function submitRowAsForm(idRow) {
form = document.createElement("form"); // CREATE A NEW FORM TO DUMP ELEMENTS INTO FOR SUBMISSION
form.method = "post"; // CHOOSE FORM SUBMISSION METHOD, "GET" OR "POST"
form.action = ""; // TELL THE FORM WHAT PAGE TO SUBMIT TO
$("#"+idRow+" td").children().each(function() { // GRAB ALL CHILD ELEMENTS OF <TD>'S IN THE ROW IDENTIFIED BY idRow, CLONE THEM, AND DUMP THEM IN OUR FORM
if(this.type.substring(0,6) == "select") { // JQUERY DOESN'T CLONE <SELECT> ELEMENTS PROPERLY, SO HANDLE THAT
input = document.createElement("input"); // CREATE AN ELEMENT TO COPY VALUES TO
input.type = "hidden";
input.name = this.name; // GIVE ELEMENT SAME NAME AS THE <SELECT>
input.value = this.value; // ASSIGN THE VALUE FROM THE <SELECT>
form.appendChild(input);
} else { // IF IT'S NOT A SELECT ELEMENT, JUST CLONE IT.
$(this).clone().appendTo(form);
}
});
form.submit(); // NOW SUBMIT THE FORM THAT WE'VE JUST CREATED AND POPULATED
}
</script>
So what have we done here? We've given each row a unique id and included an element in the row that can trigger the submission of that row's unique identifier. When the submission element is activated, a new form is dynamically created and set up. Then using jQuery, we clone all of the elements contained in <td>'s of the row that we were passed and append the clones to our dynamically created form. Finally, we submit said form.
You can use the form attribute id to span a form over multiple elements each using the form attribute with the name of the form as follows:
<table>
<tr>
<td>
<form method="POST" id="form-1" action="/submit/form-1"></form>
<input name="a" form="form-1">
</td>
<td><input name="b" form="form-1"></td>
<td><input name="c" form="form-1"></td>
<td><input type="submit" form="form-1"></td>
</tr>
</table>
If you need form inside tr and inputs in every td, you can add form in td tag, and add attribute 'form' that contains id of form tag to outside inputs.
Something like this:
<tr>
<td>
<form id='f1'>
<input type="text">
</form>
</td>
<td>
<input form='f1' type="text">
</td>
</tr>
If all of these rows are related and you need to alter the tabular data ... why not just wrap the entire table in a form, and change GET to POST (unless you know that you're not going to be sending more than the max amount of data a GET request can send).
I cannot wrap the entire table in a form, because some input fields of each row are input type="file" and files may be large. When the user submits the form, I want to POST only fields of current row, not all fields of the all rows which may have unneeded huge files, causing form to submit very slowly.
So, I tried incorrect nesting: tr/form and form/tr. However, it works only when one does not try to add new inputs dynamically into the form. Dynamically added inputs will not belong to incorrectly nested form, thus won't get submitted. (valid form/table dynamically inputs are submitted just fine).
Nesting div[display:table]/form/div[display:table-row]/div[display:table-cell] produced non-uniform widths of grid columns. I managed to get uniform layout when I replaced div[display:table-row] to form[display:table-row] :
div.grid {
display: table;
}
div.grid > form {
display: table-row;
div.grid > form > div {
display: table-cell;
}
div.grid > form > div.head {
text-align: center;
font-weight: 800;
}
For the layout to be displayed correctly in IE8:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
...
<meta http-equiv="X-UA-Compatible" content="IE=8, IE=9, IE=10" />
Sample of output:
<div class="grid" id="htmlrow_grid_item">
<form>
<div class="head">Title</div>
<div class="head">Price</div>
<div class="head">Description</div>
<div class="head">Images</div>
<div class="head">Stock left</div>
<div class="head">Action</div>
</form>
<form action="/index.php" enctype="multipart/form-data" method="post">
<div title="Title"><input required="required" class="input_varchar" name="add_title" type="text" value="" /></div>
It would be much harder to make this code work in IE6/7, however.
If you can use javascript and strictly require it on your web, you can put textboxes, checkboxes and whatever on each row of your table and at the end of each row place button (or link of class rowSubmit) "save". Without any FORM tag. Form than will be simulated by JS and Ajax like this:
<script type="text/javascript">
$(document).ready(function(){
$(".rowSubmit").click(function()
{
var form = '<form><table><tr>' + $(this).closest('tr').html() + '</tr></table></form>';
var serialized = $(form).serialize();
$.get('url2action', serialized, function(data){
// ... can be empty
});
});
});
</script>
What do you think?
PS: If you write in jQuery this:
$("valid HTML string")
$(variableWithValidHtmlString)
It will be turned into jQuery object and you can work with it as you are used to in jQuery.
I second Harmen's div suggestion. Alternatively, you can wrap the table in a form, and use javascript to capture the row focus and adjust the form action via javascript before submit.
I had a problem similar to the one posed in the original question. I was intrigued by the divs styled as table elements (didn't know you could do that!) and gave it a run. However, my solution was to keep my tables wrapped in tags, but rename each input and select option to become the keys of array, which I'm now parsing to get each element in the selected row.
Here's a single row from the table. Note that key [4] is the rendered ID of the row in the database from which this table row was retrieved:
<table>
<tr>
<td>DisabilityCategory</td>
<td><input type="text" name="FormElem[4][ElemLabel]" value="Disabilities"></td>
<td><select name="FormElem[4][Category]">
<option value="1">General</option>
<option value="3">Disability</option>
<option value="4">Injury</option>
<option value="2"selected>School</option>
<option value="5">Veteran</option>
<option value="10">Medical</option>
<option value="9">Supports</option>
<option value="7">Residential</option>
<option value="8">Guardian</option>
<option value="6">Criminal</option>
<option value="11">Contacts</option>
</select></td>
<td>4</td>
<td style="text-align:center;"><input type="text" name="FormElem[4][ElemSeq]" value="0" style="width:2.5em; text-align:center;"></td>
<td>'ccpPartic'</td>
<td><input type="text" name="FormElem[4][ElemType]" value="checkbox"></td>
<td><input type="checkbox" name="FormElem[4][ElemRequired]"></td>
<td><input type="text" name="FormElem[4][ElemLabelPrefix]" value=""></td>
<td><input type="text" name="FormElem[4][ElemLabelPostfix]" value=""></td>
<td><input type="text" name="FormElem[4][ElemLabelPosition]" value="before"></td>
<td><input type="submit" name="submit[4]" value="Commit Changes"></td>
</tr>
</table>
Then, in PHP, I'm using the following method to store in an array ($SelectedElem) each of the elements in the row corresponding to the submit button. I'm using print_r() just to illustrate:
$SelectedElem = implode(",", array_keys($_POST['submit']));
print_r ($_POST['FormElem'][$SelectedElem]);
Perhaps this sounds convoluted, but it turned out to be quite simple, and it preserved the organizational structure of the table.
Tables are not meant for this, why don't you use <div>'s and CSS?
it's as simple as not using a table for markup, as stated by Harmen. You're not displaying data after all, you're collecting data.
I'll take for example the question 23 here: http://accessible.netscouts-ggmbh.eu/en/developer.html#fb1_22_5
On paper, it's good as it is. If you had to display the results, it'd probably be OK.
But you can replace it with ... 4 paragraphs with a label and a select (option's would be the headers of the first line). One paragraph per line, this is far more simple.
Is it valid to have a form tag inside a table tag? Some documentation links would be appreciated.
<form> is valid inside a <td> element. You can check this sort of thing at http://validator.w3.org. Choose "Validate by direct input", then paste the following HTML:
<table>
<tbody>
<tr>
<td><form action="test"><div><input type="text"></div></form></td>
</tr>
</tbody>
</table>
Under "More options", select "Validate document fragment". This allows you to check a HTML snippet without writing an entire page for it. I use it for checking HTML fragments all the time.
References:
The TD element
The FORM element
Putting a form tag inside a table (but outside the rows) was sometimes used to keep the margins of the form to interfere with the layout. It kind of works, but it's invalid code according to the HTML standard.
Use CSS to remove the margin from the form tag instead. Example:
<form ... style="margin:0">
Or preferrably put it in your style sheet.
You can nest a form within a td, its usually fine for most purposes though to wrap a form around a table
<form action="#">
<table>
<thead>
<tr>
<th>list</th>
<th>button</th>
</tr>
</thead>
<tbody>
<tr>
<td><input type="text" required="required"></td>
<td><button type="submit" id="saveRow">Save me</button></td>
</tr>
</tbody>
</table>
</form>
It is valid to put a <form> tag inside a <table> tag.
<table>
<tr>
<td>
<form name="sample" action="test.php">
<div>
<input type="submit" value="submit" >
</div>
</form>
</td>
</tr>
</table>
Editing note: tags wrapped as code so that the content reads as intended, but the answer should specify that while the form is inside the table, it cannot be a direct descendant: it must be a child of a cell.
Is the following valid HTML? What I am wondering about specifically is the location of the <form> tag.
<table>
<form>
<tr>
<td>
<input id="txt" type="text"></input>
</td>
<td>
<input id="txt" type="text"></input>
</td>
<td>
<input type="submit"></input>
</td>
</tr>
</form>
</table>
I recomment using the w3c validator http://validator.w3.org/. And no its not valid :-)
It's not valid. I'm guessing you want to remove the default padding of the form element. This is better done through CSS:
form {
padding:0;
margin:0;
}
or
<form style="padding:0;margin:0;">
Your approach used to be very common to remove the default form padding (before CSS became popular). Now you should put the form tags outside the table. Preferrably you shouldn't even use a table here, but that's not the question, so I'll let it slide. ;)
No this is not valid, TABLE can only contain TBODY, THEAD, TFOOT, CAPTION, COL, COLGROUP. If you are using XHTML then you can also put tr inside the table.
No. see: http://www.w3.org/TR/html4/struct/tables.html#edef-TABLE
<!ELEMENT TABLE - -
(CAPTION?, (COL*|COLGROUP*), THEAD?, TFOOT?, TBODY+)>
The <form> element can appear in all places where you can have block content. So <form> can go in <body>,<blockquote>,<noscript> (oddly enough also in <map>). Because block can also go in flow, it may also appear in <div>,<ins>,<del>,<dd>,<li>,<td>,<th>
It's not proper HTML, but it's sometimes done to lose the empty lines.