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Checking table data if has input

I'm trying to check my table data for empty field. I used $('td:has(input)') because all of my cell has <input type="text" class="form-control">. What I want to do if the user hit the Save button it will checked if all the textfield is empty otherwise it will prompt a message. But the user can fill one of the textfields but cannot be left blank. How can I achieve this?
Table:
<div class = "col-md-12">
<table class = "table" id = "customFields">
<thead>
<tr>
<th>Stock No.</th>
<th>Unit</th>
<th class = "description">Description</th>
<th>Quantity</th>
</tr>
</thead>
<tbody>
<tr>
<td><input type="text" class="form-control"></td>
<td><input type="text" class="form-control"></td>
<td><input type="text" class="form-control"></td>
<td><input type="text" class="form-control"></td>
</tr>
</tbody>
</table>
<button type = "submit" class = "btn btn-primary" id = "addMore">+ Add</button>
<button type = "submit" class = "btn btn-danger" id = "removeRow">- Remove</button>
<button type = "submit" class = "btn btn-primary" id = "save">Save</button>
</div>
Script:
<script>
$(document).ready(function ()
{
$("#addMore").click(function ()
{
$("#customFields").append('<tr><td><input type="text" class="form-control"></td><td><input type="text" class="form-control"></td><td><input type="text" class="form-control"></td><td><input type="text" class="form-control"></td></tr>');
});
$("#removeRow").click(function()
{
if ($('#customFields tbody tr').length== 1)
{
alert('Cannot be left blank');
}
else
{
$('#customFields tr:last').remove();
}
});
$("#save").click(function ())
{
if ($('td:has(input)').text(function ()
{
}));
});
});
</script>

You could loop through all elements with the form-control class and make sure their combined values length is greater than zero.
$("#save").click(function (){
var values = "";
$.each($(".form-control"), function(i, c){
values = values + $(c).val().trim(); // .trim() to remove white-space
});
if(values.length > 0)
{
//Success!
}
else
{
// Error!
}
});

Search box for table

Given this table:
<table class="tbllist searchtbl" cellpadding=2 cellspacing=0 style="width: 70%">
<tr>
<th class="hidden">ID</th>
<th>Number Plate</th>
<th>Chassis Number</th>
<th>Trailer Make</th>
<th>Year</th>
<th>Axles</th>
<th></th>
</tr>
<tr class='tbl'>
<td class='hidden'>3</td>
<td>
<input type=text style = 'width: 75px' class='centered' id='trnumberplate_3' name='trnumberplate_3' value='T212ABS' onfocus='this.oldvalue = this.value;' onchange='updatevalue("trailers","trnumberplate", this.value ,"trid","3","","1",this, "false")'>
</td>
<td>
<input type=text style = 'width: 200px' id='trchassisnumber_3' name='trchassisnumber_3' value='AJSDGASJH' onfocus='this.oldvalue = this.value;' onchange='updatevalue("trailers","trchassisnumber", this.value ,"trid","3","","1",this, "false")'>
</td>
<td>
<input type=text style = 'width: 200px' id='trmake_3' name='trmake_3' value='LOW LOADER' onfocus='this.oldvalue = this.value;' onchange='updatevalue("trailers","trmake", this.value ,"trid","3","","1",this, "false")'>
</td>
<td>
<input type=text style = 'width: 50px' class='centered' id='tryear_3' name='tryear_3' value='2009' onfocus='this.oldvalue = this.value;' onchange='updatevalue("trailers","tryear", this.value ,"trid","3","1","",this, "false")'>
</td>
<td>
<input type=text style = 'width: 25px' class='centered' id='traxles_3' name='traxles_3' value='3' onfocus='this.oldvalue = this.value;' onchange='updatevalue("trailers","traxles", this.value ,"trid","3","1","",this, "false")'>
</td>
<td class='delbtn'>
<button id='trailers_3' title='DELETE THIS ITEM (3)?' onclick='event.preventDefault(); delitem("trailers","trid","3","trailers.php","#workspace")'><img src='/icons/delete.png' ></button>
</td>
</tr>
</table>
I have the following search function:
function searchbox() {
// text input search for tables (such as trip history etc)
$("#search").keyup(function () {
//split the current value of searchInput
var data = this.value.toUpperCase().split(" ");
//create a jquery object of the rows
var jo = $(".tbllist").find("tr").not("tr:first"); // exclude headers
if (this.value == "") {
jo.show();
return;
}
//hide all the rows
jo.hide();
//Recusively filter the jquery object to get results.
jo.filter(function (i, v) {
var $t = $(this);
for (var d = 0; d < data.length; ++d) {
if ($t.is(":contains('" + data[d] + "')")) {
return true;
}
}
return false;
})
//show the rows that match.
.show();
})
It will loop through table td's to check if the searched value is available and filter rows. It is not filtering if the td contains an input text element with the searched value.
Update:
if ($t.find("input").val().toUpperCase().indexOf(data[d]) > 0) {
return true;
}
Now works but will only matches the first column of the table.
JSFiddle: https://jsfiddle.net/fabriziomazzoni79/30d52c9z/

Change jo.filter() like this:
jo.filter(function (i, v) {
var txt = '';
$(v).find("input").each(function(n,e){
txt += e.value;
});
for(var d=0; d<data.length; d++){
if (txt.search(data[d])>=0) {
return true;
}
}
return false;
})
Fiddle here.

getElementById( ) not working on Dynamically assigned id

I have gone through google and some of SO questions (such as this & this) as well but I didn't find the solution.
I am working for validation of a dynamically generated rows in a table,initially I am trying to validate the first td, loop and alert is working all fine but document.getElementById() is giving a null value. The script is at the very bottom of the page.
and here is the JS code.
edit: I have added the code, and what I am trying to do is display the error (Please fill) when field is left blank on the click of submit button and hide it when it is filled.
$(function(){
$(document).on("click",".addRowAux",function(){
/*var valanx1 = $(this).parents("tr").children("td:nth-child(2)").children("input").val();
var valanx2 = $(this).parents("tr").children("td:nth-child(3)").children("input").val();
var valanx3 = $(this).parents("tr").children("td:nth-child(4)").children("select").val();
var valanx4 = $(this).parents("tr").children("td:nth-child(4)").children("input").val();*/
var countrow= $("#annextable tr").length;
/*countrow++;*/
if(countrow<11)
{
$("#aux").append('<tr><td align="center">'+countrow+'</td><td align="center"><input type="text" name="ref_name[]" id="ref_name"/><span id="refNm_error">Please fill</span></td><td align="center"><input type="text" name="ref_desg[]" id="ref_desg"/></td><td align="center"><input type="text" name="ref_address[]" id="ref_address"/></td><td align="center"><input type="text" name="ref_email[]" id="ref_email"/></td><td align="center"><input type="text" name="ref_mobile[]" id="ref_mobile"/></td><td align="center"><input type="text" name="ref_pan[]" id="ref_pan"/></td><td align="center"><span class="addRowAux">Add</span> <span id="removeRowaux">Remove</span></td></tr>');
}
else
{
//countrow--;
alert("Can not add more then 10 record.");
}
});
});
$(document).on('click', '#removeRowaux', function () { // <-- changes
var countrow= $("#annextable tr").length;
if(countrow>3)
{
$(this).closest('tr').remove();
var tblObj = document.getElementById('annextable');
var no_of_rows = tblObj.rows.length;
for(var i=0; i<no_of_rows-1; i++)
{
tblObj.rows[i+1].cells[0].innerHTML = i+1;
tblObj.rows[i+1].cells[1].setAttribute( "delThis", i+1);
////alert(kj);
//document.getElementById("refNm_error").id ="refNm_error"+j;
}
}
else{
alert("you can not delete this")
}
});
$(document).on('click', '#hods', function () {
var tblObj = document.getElementById('annextable');
var no_of_rows = tblObj.rows.length;
for(var i=0; i<no_of_rows-1; i++)
{tblObj.rows[i+1].cells[1].setAttribute( "delThis", i+1)
var j=tblObj.rows[i+1].cells[1].getAttribute("delThis");
document.getElementById("refNm_error").id ="refNm_error"+j;
}
});
$(function(){
$(document).on('change', '.rel_type', function() {
var relation = $(this).val();
if(relation =='OT'){
$(this).next("input").show();
$(this).next("input").val("Please Specify");
}
else{
$(this).next("input").hide();
$(this).next("input").val("")
}
});
});
function yoVal(){
var refNm =document.getElementsByName('ref_name[]');
for(var i=0;i<=refNm.length;i++) {
if(refNm[i].value==""){
alert("success");
}
else{
var ch ='refNm_error'+(i+1);
alert(ch);
//document.getElementById(ch).style.display = "none";
alert("fail")
}
}}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<div class="refForm">
<table width="99%" border="1" id="annextable" style="border-collapse:collapse" align="center">
<thead>
<tr style="background:#ddd;">
<th>S.No</th>
<th>Name</th>
<th>Designation</th>
<th>Address</th>
<th>Email</th>
<th>Mobile</th>
<th>PAN</th>
<th>Action</th>
</tr>
</thead>
<tbody id="aux">
<tr>
<td align="center">1</td>
<td align="center"><input type="text" name="ref_name[]" id="ref_name"/><br/><span id="refNm_error">Please fill</span></td>
<td align="center"><input type="text" name="ref_desg[]" id="ref_desg"/></td>
<td align="center"><input type="text" name="ref_address[]" id="ref_address"/></td>
<td align="center"><input type="text" name="ref_email[]" id="ref_email"/></td>
<td align="center"><input type="text" name="ref_mobile[]" id="ref_mobile"/></td>
<td align="center"><input type="text" name="ref_pan[]" id="ref_pan"/></td>
<td align="center">
<span class="addRowAux">Add</span> <span id="removeRowaux">Remove</span></td>
</tr>
</tbody></table>
<input type="button" onclick="yoVal()" value="Test" id="hods"/>
</div>

Because you are adding extra quotes in beginning and end in variable k. use:
var k = 'refNm_error' + (i+1);

You might need to reload the DOM after adding dynamic elements.
This link might help

Update, when you created your dynamic table rows for the table you didn't assign unique ids for input elements. So I updated the addRow handler:
$(document).on("click", ".addRowAux", function () {
to add unique input ids, like following:
$("#aux").append('<tr><td align="center">' + countrow + '</td><td align="center"><input type="text" name="ref_name[]" id="ref_name_' + countrow + '"/><span id="refNm_error_' + countrow + '">Please fill</span>...
and also I changed in the code:
<span id="removeRowaux">Remove</span>
to use class instead of an id:
<span class="removeRowaux">Remove</span>
Now the remove row handler listens to events from spans with class removeRowaux:
$(document).on('click', '.removeRowaux', function ()
Now the remove row functionality works and there are no spans with identical ids. So I don't think there was anything wrong with getElementById() in the code - it works fine :-)
Updated Fiddle

Unable to remove the selected input rows from a table

I have multiple input tags in a table of type "checkbox". I need to remove the complete row of selected checkbox.
I am using the following function to remove the selected rows:
function removeSelected( tblname )
{
var tbl = document.getElementById(tblname);
var rowcount = tbl.rows.length;
if (tbl.rows.length > 1)
{
for ( var i = 0 ; i < tbl.rows.length ; i++)
{
var row = tbl.rows[i];
var chkselect = row.cells[0].getElementByTagName("input").item(0);
var attr = trimString(row.cells[0].getElementByTagName("input").item(1).value);
var attr1 = trimString(row.cells[0].getElementByTagName("input").item(2).value);
if (chkselect.checked)
{
tbl.deleteRow(i);
i = 0;
}
}
}
}
And My html is as below:
<table id="myTable" border = "0">
<tr border = "0">
<td><input type="checkbox" name="checkbox" id = "checkbox" value = "hen">hen</input></td>
</tr>
<tr>
<td><input type = "checkbox" name="checkbox1" id="checkbox1" value = "cock">cock</input></td>
</tr>
</table>
<br>
<button onclick="removeSelected("myTable")">Try it</button>
When I check the "hen" checkbox it should delete the hen row and when I check "cock" it should delete the cock row. However, I am unable to delete the selected one.
What am I doing wrong?

As AleJuliet said, you should fix syntax errors.
And to delete rows, you should start from the end, because the rows are shifted
function removeSelected( tblname ) {
var tbl = document.getElementById(tblname);
for ( var i = tbl.rows.length - 1 ; i >= 0 ; i--) {
checkbox = tbl.rows[i].getElementsByTagName("input")[0];
if(checkbox.checked){
tbl.deleteRow(i);
}
}
}
<table id="myTable" border = "0">
<tr border = "0">
<td><input type="checkbox" name="checkbox" id = "checkbox" value = "hen">hen</input></td>
</tr>
<tr>
<td><input type = "checkbox" name="checkbox1" id="checkbox1" value = "cock">cock</input></td>
</tr>
</table>
<br>
<button onclick="removeSelected('myTable')">Try it</button>

Cannot extract data from TD if there is span in front

I need your help.
Because of the way IE7 chooses to ignore the TD: whitespace: nowrap, I am forced to put and use spans in front of my TD's so here's the delema. When I click on a table row that has no spans in between the td's, the coding is able to extract the data and highlight the row.
However, when I introduce a span in between my td's and click to select a single cell in the table row with the spans's I get the following error: "cells.0 is null or not an object." I know that if I click a little bit off the side of the table cell it works, but I need to be able to also click on the <TD> and <SPAN> areas and have the code work.
Since I am making a table that will have all <span></span>'s in between all the <TD>'s how can the existing coding be reformatted to accomodate the difference from <td>data</td> to <td><span>data</span></td>?
No jQuery please.
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
#data tr.normal td {
color: #235A81;
background-color: white;
}
#data tr.highlighted td {
color: #FFFFFF;
background-color: #235A81;
}
</style>
<script type='text/javascript'>
function test() {
var table = document.getElementById("data");
var thead = table.getElementsByTagName("thead")[0];
var tbody = table.getElementsByTagName("tbody")[0];
var ishigh
tbody.onclick = function (e) {
e = e || window.event;
var td = e.target || e.srcElement
var row = td.parentNode;
if (ishigh&&ishigh!=row){
ishigh.className='';
}
row.className = row.className==="highlighted" ? "" : "highlighted";
ishigh=row;
getdata(row)
}
document.onkeydown = function(e){
e = e || event;
var code = e.keyCode, rowslim = table.rows.length - 2, newhigh;
if(code === 38){ //up arraow
newhigh = rowindex(ishigh) - 2;
if(!ishigh || newhigh < 0){return GoTo('data', rowslim);}
return GoTo('data', newhigh);
} else if (code === 40){ //down arrow
newhigh = rowindex(ishigh);
if(!ishigh || newhigh > rowslim){return GoTo('data', 0);}
return GoTo('data', newhigh);
}
}
function GoTo(id,nu){
var obj=document.getElementById(id),
trs=obj.getElementsByTagName('TR');
nu = nu + 1;
if (trs[nu]){
if (ishigh&&ishigh!=trs[nu]){
ishigh.className='';
}
trs[nu].className = trs[nu].className=="highlighted" ? "" : "highlighted";
ishigh=trs[nu];
}
getdata(trs[nu]);
}
function rowindex(row){
var rows = table.rows, i = rows.length;
while(--i > -1){
if(rows[i] === row){return i;}
}
}
function getdata(row) {
document.getElementById('firstname').value = row.cells[0].innerHTML;
document.getElementById('lastname').value = row.cells[1].innerHTML;
document.getElementById('age').value = row.cells[2].innerHTML;
document.getElementById('total').value = row.cells[3].innerHTML;
document.getElementById('discount').value = row.cells[4].innerHTML;
document.getElementById('diff').value = row.cells[5].innerHTML;
find_option('fname',row.cells[0].innerHTML)
}
}//end of nested function
function find_option(id,value) {
var sel = document.getElementById(id)
for (var i = 0; i < sel.length; i++){
//alert(sel.options[i].text+" "+sel.options[i].value)
if (sel.options[i].value == value) {
sel.selectedIndex = i;
return
}
}
}
</script>
</head>
<body>
<table id="data" cellspacing="1" border="1">
<thead>
<tr>
<th>first name</th>
<th>last name</th>
<th>age</th>
<th>total</th>
<th>discount</th>
<th>diff</th>
</tr>
</thead>
<tbody>
<tr>
<td><span>peter</span></td>
<td><span>parker</span></td>
<td><span>28</span></td>
<td><span>9.99</span></td>
<td><span>20.3%</span></td>
<td><span>+3</span></td>
</tr>
<tr>
<td>john</td>
<td>hood</td>
<td>33</td>
<td>19.99</td>
<td>25.1%</td>
<td>-7</td>
</tr>
<tr>
<td>clark</td>
<td>kent</td>
<td>18</td>
<td>15.89</td>
<td>44.2%</td>
<td>-15</td>
</tr>
<tr>
<td>bruce</td>
<td>almighty</td>
<td>45</td>
<td>153.19</td>
<td>44%</td>
<td>+19</td>
</tr>
<tr>
<td>benjamin</td>
<td>evans</td>
<td>56</td>
<td>153.19</td>
<td>23%</td>
<td>+9</td>
</tr>
</tbody>
</table>
<br>
Firstname is:
<input type="text" id="firstname" />
<br>Lastname is:
<input type="text" id="lastname" />
<br>Age is:
<input type="text" id="age" />
<br>Total is:
<input type="text" id="total" />
<br>Discount is:
<input type="text" id="discount" />
<br>Diff is:
<input type="text" id="diff" />
<br>
<input type="button" value="testme" onclick="test()">
<br><br>
<select id="fname">
<option value="bruce">bruce</option>
<option value="clark">clark</option>
<option value="benjamin">benjamin</option>
</select>
</body>
</html>

Change this line:
var row = td.parentNode;
to:
var row = (td.tagName == "DIV") ? td.parentNode.parentNode : td.parentNode;

You can look at the elemet's tag name and determine whether the user has clicked on a TD or a SPAN, then adjust select the element's parent (the TD) if you have a span.
var td = e.target || e.srcElement
alert(td.tagName)
Alternately, you can add a CSS class name to all of your SPANS and then check to see if the selected element has that class name. If it does, it's a SPAN, if it doesn't, it's a TD.
I would also suggest using a DIV, not a SPAN.