First: My problem is that by inserting strings into several fields of a form from a row via DOM, the values occure with a lot of whitespaces, both at the beginning and the end.
What I want to do:
look up the values of the cells in the row I doubleclicked, and put these values in the fields of a form.
The HTML is equivalent to :
<form>
<fieldset>
<legend> Very Important </legend>
<label for="input_representing_all_the_inputs">
<input id="input_representing_all_the_inputs"></input>
</fieldset>
</form>
<table id="issue_table" class="sortable", border="1" >
<tr ondblclick="values_into_form(issue_table)">
<td>
a value
</td>
<td>
another one
<td>
</tr>
<tr ondblclick="values_into_form(issue_table)">
<td>
here's also another value
</td>
<td>
aaand one more.
</td>
</tr>
</table>
<table id="not_the_issue_table" class="sortable", border="1">
[...] blabla looks similar [...]
</table>
Now I got a js function to look up values from the table and putting them into the form.
function values_into_form( id ) {
//find index of row with given id
for (i = 0; i<= document.getElementById("accl_content").rows.lenght; i++){
if ( document.getElementById("issue_table").rows[i].id == id) {
var idx = i;
break;
}
}
// now insert the values into the editor-form
document.getElementById("input_representing_all_the_inputs" =
document.getElementById("issue_table").rows[idx].cells[0];
// repeat the above for each input_field with the specific cell_idx.
}
}
So now, let's look at the first of the first of issue_table.
The value is "a value". However, the inputfield will contain something like " a value ".
Is there a specific misstake I made to produce this?
I don't want a solution to get rid of the whitespaces, I want a real solution, want to say, I don't want them to occure at all.
I'm fresh to JS, coming from lua. So if I made some conceptional misstakes, I would be happy if you could tell me in a sidenote.
Change your html to this:
<table id="issue_table" class="sortable", border="1" >
<tr ondblclick="values_into_form(issue_table)">
<td>a value</td>
<td>another one<td>
</tr>
<tr ondblclick="values_into_form(issue_table)">
<td>here's also another value</td>
<td>aaand one more.</td>
</tr>
</table>
The spaces are because in your html there are spaces. You could of course alternatively strip beginning and ending white spaces using javascript. But if you do not want to do that, the above solution should work.
It is good practice to separate HTML and JavaScript.
JavaScript:
var myTable = document.getElementById("myTable");
var myInput = document.getElementById("myInput");
var td = myTable.getElementsByTagName("td");
for(var i = 0; i < td.length; i += 1) {
td[i].addEventListener("dblclick", function() {
myInput.value = this.innerHTML;
});
}
Demo
Related
I need to change all ID after cloning node below by javascript or jquery.
<table id="1">
<tr>
<td id="RM_1"><button type="button" onclick="duplicateFunction(1)"></td>
<td id="CL_1"><input id="[1][999]"/></td>
</tr>
</table>
when I clone node with ID = "1" I need to change 1 to 2 as in all ID tags below.
<table id="2">
<tr>
<td id="RM_2"><button type="button" onclick="duplicateFunction(2)"></td>
<td id="CL_2"><input id="[2][999]"/></td>
</tr>
</table>
Remark : The table id is unique id. I use simple number to explain the code.
update
When user click duplicate button. The duplicateFunction will be called.
now , I can change table id but I can't change inside.
function duplicateFunction(table_id){
var myTable = document.getElementById(table_id);
myClone = myTable.cloneNode(true);
var newTableID = Date.now();
myClone.id = newTableID;
document.getElementById("AddingSpace").appendChild(myClone);
}
because every tags have another features to do when user click.
that's the best way on this time.
Thank you in advance
This is an attempt along the lines suggested by Rory McCrossan. Instead of the individual ids of your elements inside the table I used shortened class names. The tables do not have actual ids but dataset attributes with id properties. This way it will not cause serious problems if ids should become double ...
My function calculates a newid on the basis of the number of already existing tables in the #addingspace div. This is not production ready either but probably less problematic than your original approach.
const $trg=$('#addingspace');
$(document).on('click','.RM button',function(){
let newid=$trg.find('table').length+2;
$trg.append(
$(this).closest('table').clone().data('id',newid) // set data-id
.find('.CL span').text(newid).end() // set span and return cloned element
)
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table data-id="1">
<tr>
<td class="RM"><button type="button">duplicate</button></td>
<td class="CL"><input /> id: <span>1</span></td>
</tr>
</table>
<div id="addingspace"></div>
I am trying to create a dynamic html table and i've not been able to do it yet.
i will give what ive done
and this is the code
<table id="myTable">
<tr id="tr">
<th>Students Name</th>
<th>Average</th>
</tr>
{% for student in teacherStudents %}
<tr id="tr2">
<td id="td">{{ student.Students_Enrollment_Records.Student_Users }}</td>
</tr>
{% endfor %}
</table>
<button type="button" value="" class="save" onclick="doTheInsert()" title="Insert New Cell" id="save">+ Insert New Cell</button>
<button type="button" value="" class="save" onclick="undoTheInsert()" title="Undo Recent Action" id="unsave">× Undo Recent Action</button>
<script>
var count = 0;
function doTheInsert() {
let header = $.find("tr[id='tr']")[0];
header.append("<th data-id='header'><input type='date'></th>");
let rows = $.find("tr[id='tr2']");
for (let i = 0; i < rows.length; i++) {
rows[i].append("<td data-id='row'><input type='text'/></td>");
}
}
</script>
what i want is if the teacher click the button it will add textbox under the date, depending on the number of students how many textboxes to add
for example i click twice the button Insert New Cell
this is the result I want, (i will make static result to clarify what i want)
what result ive got
UPDATE:
when I tried the answer of Sir dirkgroten I got this
the date will appear between the Students Name and Average
Your .append() is applied to a javascript DOM node instead of jQuery element, because you index into the jQuery elements.
For example, let header = $("tr#tr") gives you all <tr id="tr"> elements. When you do header[0] this isn't a jQuery element anymore but the javascript node. So append() is not the same function you expect:
In javascript, ParentNode.append(<string>) appends the actual string, as explained here.
In jQuery, elem.append(<string>) appends the HTML, if the string is an htmlString, as explained here.
Your code should be like this:
function doTheInsert()
{
let header=$("tr#tr"); // same as $.find("tr[id='tr2']")
header.append("<th data-id='header'><input type='date'></th>");
let rows=$("tr#tr2");
rows.append("<td data-id='row'><input type='text'/></td>");
}
I have a table that looks like this -->
<table>
<tr style="display: none";><td class="index">index_value</td></tr>
<tr><td>section header</td></tr>
<tr>
<td class="name>Steven</td>
<td class="height">6 ft.</td>
<td><button class="add">Add</button></td>
</tr>
</table
and a js script that looks like this -->
<script>
$(".add").on('click', function(){
var the_name = $(this).closest("td").siblings(".name").text();
var the_type = $(this).closest("td").siblings(".type").text();
var the_index = $(this).parent().find("td.index").text();
}
</script>
As you can probably tell, I'm trying to get the values of certain td within this table. The first two variables work just fine because they are within the same table row; however, the last variable is not capturing the data I want (inside the index class).
I'm having some trouble understanding these methods of tree traversal and how I can grab data within a table row that is not the one which contains the button that is clicked. Any advice would be appreciated, thank you.
There were a few syntax errors in your code that you need to clean up, but the issue you're having with getting the value in the index cell is that you're not going far enough up the DOM tree to run the .find() command.
$(".add").on('click', function(){
var the_name = $(this).closest("td").siblings(".name").text();
var the_type = $(this).closest("td").siblings(".type").text();
var the_index = $(this).closest("table").find("td.index").text();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tr style="display: none";><td class="index">index_value</td></tr>
<tr><td>section header</td></tr>
<tr>
<td class="name">Steven</td>
<td class="height">6 ft.</td>
<td><button class="add">Add</button></td>
</tr>
</table>
I am returning a list from Controller class.
httpReq.setAttribute("playersList", playersList);
I want size of this list in onchange() method.
$('#teams').on('change', function(){
// code to get the size/count
if(count < 11){
.........
}else{
.........
}
}
here I am displaying that list:
<tr id = "players" style="display:none;">
<td class="tabHead">PLAYER NAMES</td>
<td>
<div class="" id="playerNames" name="playerNames" >
<c:forEach items="${playersList}" var="playersListItem">
${playersListItem.name}<br>
</c:forEach>
</div>
</td>
</tr>
I tried -
var count = playersList.length;
var count = $("#players").length;
but that didn't work.
It seems that each item in your list is some unformatted text followed by a <br> element:
${playersListItem.name}<br>
...all within a particular <div> within a particular <tr>. So to count them just count the <br> elements that are inside the <tr> or <div> using one of the following:
var count = $("#players").find("br").length;
var count = $("#players br").length;
var count = $("#playerNames").find("br").length;
var count = $("#playerNames br").length;
(Note that the second thing you tried, $("#players").length, should always return either 0 or 1, because selecting by element id should always find either 0 or 1 element.)
How about using a tribute selector
$("[id='players'] br").length;
or
$('#playerNames > *').length;
if you change your table structure a little, you can easily find the count. Like here I add class 'playerName' and count it inside the players TR tag
<tr id="players" style="display:none;">
<td class="tabHead">PLAYER NAMES</td>
<td>
<div id="playerNames" name="playerNames" >
<c:forEach items="${playersList}" var="playersListItem">
<div class="playerName">${playersListItem.name}</div>
</c:forEach>
</div>
</td>
</tr>
$('#players .playerName').length
I have a case where a html file contains multiple elements with the same ID name.
The table row contains 5 columns of which I need to consider 2,3,4,5 columns data.
<tr id='total_row'>
<td>Total</td>
<td>%(count)s</td>
<td>%(Pass)s</td>
<td>%(fail)s</td>
<td>%(error)s</td>
<td> </td>
</tr>
I have the above code at several places in the file. I need to add the respective values using javascript.
An ID is unique in an html page. You can call it THE ID as well wrt a page. You cannot have same ID for two different tags in a single page. But you can use class instead of and ID. Know about it here
So your HTML can be like
<tr class='total_row'>
<td>Total</td>
<td>%(count)s</td>
<td>%(Pass)s</td>
<td>%(fail)s</td>
<td>%(error)s</td>
<td> </td>
</tr>
As an example with jquery you can do something like this,
<!DOCTYPE html>
<html>
<head>
<style>
</style>
</head>
<body>
<table>
<tr class="one">
<td></td>
<td></td>
</tr>
<tr class="one">
<td></td>
<td></td>
</tr>
<tr class="one">
<td></td>
<td></td>
</tr>
</table>
<script src="jquery-1.11.0.min.js"></script>
<script>
$(document).ready(function() {
$(".one").eq(0).find('td').eq(0).html("I'm tracked");
// get 1st tr and get first td
$(".one").eq(1).find('td').eq(1).html("I'm tracked");
// get 2nd tr and get second td
$(".one").eq(2).find('td').eq(0).html("I'm tracked");
// get 3rd tr and get first td
});
</script>
</body>
</html>
But I guess this approach can be tedious.
Id should be unique and if you use the same id, javascript code refers only the first element. but if you still want to use same id than you may try the below code:
$(function(){
$('[id="total_row"]').each(function(){//run for every element having 'total_row' id
var $this = $(this);
$this.find('td').eq(1).text() //to get second column data
$this.find('td').eq(1).text('dummy text') //to set second column data
});
});
You can use XHTML:
<p id="foo" xml:id="bar">
Through XHTML you can apply similar ID to multiple Controls.
Similar questions can be found here:
http://www.c-sharpcorner.com/Forums/
While duplicate IDs are invalid, they are tolerated and can be worked around. They are really only an issue when using document.getElementById.
I'll guess that the table looks like:
<table id="t0">
<tr>
<td>-<th>count<th>Pass<td>Fail<td>Error<td>
<tr>
<td>-<td>1<td>1<td>0<td>0<td>
<tr>
<td>-<td>1<td>1<td>0<td>0<td>
<tr id='total_row'>
<td>Total<td><td><td><td><td>
<tr>
<td>-<td>1<td>1<td>0<td>0<td>
<tr>
<td>-<td>1<td><td>1<td>0<td>
<tr>
<td>-<td>1<td><td>0<td>1<td>
<tr id='total_row'>
<td>Total<td><td><td><td><td>
</table>
<button onclick="calcTotals();">Calc totals</button>
If that's correct, then a function to add each sub–section can be like:
function calcTotals(){
var table = document.getElementById('t0');
var rows = table.rows;
var row, totals = [0,0,0,0];
// For every row in the table (skipping the header row)
for (var i=1, iLen=rows.length; i<iLen; i++) {
row = rows[i];
// If it's a total row, write the totals and
// reset the totals array
if (row.id == 'total_row') {
for (var j=0, jLen=totals.length; j<jLen; j++) {
row.cells[j+1].innerHTML = totals[j];
totals[j] = 0;
}
// Otherwise, add values to the totals
} else {
for (var k=0, kLen=totals.length; k<kLen; k++) {
totals[k] += parseInt(row.cells[k + 1].innerHTML) || 0;
}
}
}
}
In addition to using classes, which works but feels kind of icky to me, one can also use data-* attributes.
<tr class='total_row' data-val-row-type="totals-row">
<td>Total</td>
<td>%(count)s</td>
<td>%(Pass)s</td>
<td>%(fail)s</td>
<td>%(error)s</td>
<td> </td>
</tr>
Then, in your script (jQuery syntax -- querySelectorAll has a similar syntax)
var $totalsRows = $("[data-val-row-type='totals-row']);
When you are in a team with a separate UI designer, this keeps the UI guy from ripping out and changing your class names to fix the new design layout and it makes it quite clear that you are using this value to identify the row, not just style it.