Develop Reference

Monitor the changes in table using JavaScript or HTML

I want to change the total price when the count or unit price of the products are changed on the website. I know I should use the onChange function, but I have no idea about how to write the JavaScript code.
<table id="productTable" class="layui-table">
<thead>
<tr>
<th>No.</th>
<th>PART NUMBER</th>
<th>DESCRIPTION</th>
<th>QTY(PCS)</th>
<th>UNIT PRICE (USD)</th>
<th>AMOUNT(USD)</th>
<th>OPRATION</th>
</tr>
</thead>
<tbody id="columns">
<tr style="display:none">
<td>1</td>
<td><input type="hidden" name="numberList"></td>
<td><input type="hidden" name="remarkList"></td>
<td><input type="hidden" name="countList"></td>
<td><input type="hidden" name="priceList"></td>
<td><input type="hidden" name="totalPriceList"></td>
</tr>
<tr th:each="orderProduct:${orderProducts}">
<td th:text="${orderProducts.indexOf(orderProduct)+1}"></td>
<td contenteditable="true" >
<input type="text" name="numberList" class="layui-input number" th:value="${orderProduct.number}">
</td>
<td contenteditable="true" >
<input type="text" name="remarkList" class="layui-input remark" th:value="${orderProduct.remark}">
</td>
<td id="productCoun" contenteditable="true" >
<input id="productCount" type="text" name="countList" onchange="update()" class="layui-input count"
th:value="${orderProduct.count}">
</td>
<td id="normalPric" contenteditable="true" >
<input id="normalPrice" type="text" name="priceList" onchange="update()" class="layui-input price"
th:value="${orderProduct.price}">
</td>
<td id="totalPric" th:text="${orderProduct.price}*${orderProduct.count}">
<input id="total" type="text" name="totalPriceList" class="layui-input price"
th:text="${orderProduct.price}*${orderProduct.count}">
</td>
<td>
Edit
<a href="javascript:void(0)" class="delBtn redType" onclick='delColumns(this)'>Del</a>
</td>
</tr>
</tbody>
</table>
I hope that the totalPrice = count*price could refresh whenever the user changes one of those values.

You can easily monitor the pointed input fields (#productCount and #normalPrice) and change the value of #total according to it. In the code below, I use the input event and I'm not using inline event handlers, but rather the function addEventListener() (know why).
const productCountInput = document.querySelector('#productCount');
const productPriceInput = document.querySelector('#normalPrice');
const totalPriceInput = document.querySelector('#total');
function updateTotalPrice() {
totalPriceInput.value = (parseFloat(productCountInput.value) * parseFloat(productPriceInput.value)) || 0;
}
productCountInput.addEventListener('input', updateTotalPrice);
productPriceInput.addEventListener('input', updateTotalPrice);
<table id="productTable" class="layui-table">
<thead>
<tr>
<th>No.</th>
<th>PART NUMBER</th>
<th>DESCRIPTION</th>
<th>QTY(PCS)</th>
<th>UNIT PRICE (USD)</th>
<th>AMOUNT(USD)</th>
<th>OPRATION</th>
</tr>
</thead>
<tbody id="columns">
<tr style="display:none">
<td>1</td>
<td><input type="hidden" name="numberList"></td>
<td><input type="hidden" name="remarkList"></td>
<td><input type="hidden" name="countList"></td>
<td><input type="hidden" name="priceList"></td>
<td><input type="hidden" name="totalPriceList"></td>
</tr>
<tr th:each="orderProduct:${orderProducts}">
<td th:text="${orderProducts.indexOf(orderProduct)+1}"></td>
<td contenteditable="true">
<input type="text" name="numberList" class="layui-input number" th:value="${orderProduct.number}">
</td>
<td contenteditable="true">
<input type="text" name="remarkList" class="layui-input remark" th:value="${orderProduct.remark}">
</td>
<td id="productCoun" contenteditable="true">
<input id="productCount" type="text" name="countList" class="layui-input count" th:value="${orderProduct.count}">
</td>
<td id="normalPric" contenteditable="true">
<input id="normalPrice" type="text" name="priceList" class="layui-input price" th:value="${orderProduct.price}">
</td>
<td id="totalPric" th:text="${orderProduct.price}*${orderProduct.count}">
<input id="total" type="text" name="totalPriceList" class="layui-input price" th:text="${orderProduct.price}*${orderProduct.count}">
</td>
<td>
Edit
Del
</td>
</tr>
</tbody>
</table>

javascript calculator with click to calculate

I have a working calculator on my website that is used for business expense savings estimation. currently the calculator auto-calculates in real time as the user inputs numbers. i would like the user to have to click a calculate button in order to see any results. could someone please help as i am having a hard time adjusting the code myself. here is the current code:
function calc() {
var cost = document.getElementById('phone').value * (.30) +
document.getElementById('energy').value * (.05) +
document.getElementById('cell').value * (.30) + document.getElementById('office').value * (.15) + document.getElementById('card').value *
(.35) + document.getElementById('waste').value * (.5) +
document.getElementById('payroll').value * (.5);
document.getElementById('cost').value = (cost * 12).toFixed(2);
}
<form name="form1" method="post" action="">
<table width="33%" align="center">
<tr>
<td valign="top" style="text-align: center"><strong>
Category</strong>
</td>
<td style="text-align: center"><strong>Monthly Expenses</strong>
</td>
</tr>
<tr>
<td valign="top"> </td>
<td> </td>
</tr>
<tr>
<td width="47%" valign="top">Telephone & Internet</td>
<td width="53%">
<input name="phone" id="phone" type="text" onchange="calc
()" />
</td>
</tr>
<tr>
<td valign="top">Energy</td>
<td>
<input name="energy" id="energy" type="text" onchange="calc()" />
</td>
</tr>
<tr>
<td valign="top">Cell Phone</td>
<td>
<input name="cell" id="cell" type="text" onchange="calc()" />
</td>
</tr>
<tr>
<td valign="top">Office Supplies</td>
<td>
<input name="office" id="office" type="text" onchange="calc()" />
</td>
</tr>
<tr>
<td valign="top">Merchant Card Fees</td>
<td>
<input name="card" id="card" type="text" onchange="calc()" />
</td>
</tr>
<tr>
<td valign="top">Waste Removal</td>
<td>
<input name="waste" id="waste" type="text" onchange="calc()" />
</td>
</tr>
<tr>
<td height="31" valign="top">3rd Party Payroll Fees</td>
<td>
<input name="payroll" id="payroll" type="text" onchange="calc
()" />
</td>
</tr>
<tr>
</tr>
</table>
<p> </p>
<div align="center">
<table width="33%" border="0">
<tr>
<td width="54%" height="31" valign="top"><strong>Estimated Annual
Savings:</strong>
</td>
<td width="46%">
<textarea name="cost" rows="1" id="cost" readonly style="overflow:hidden" input type="number"></textarea>
</td>
</tr>

Currently, your inputs are set up to call calc() whenever their onchange event is fired. This happens whenever the value is changed and the input is blurred (no longer in focus).
Remove the onchange="calc()" attribute on all your inputs, and add a button whever it makes sense to on your page with onclick="calc()":
<button onclick="calc()">Calculate</button>

Place button with Javascript event outside form
<button onclick="calc();">Calculate</button>

Delete all onchange="calc()" and add this html code to your page, that's it.
<button onclick="calc()">Calculate Expenses</button>

Remove the call to onchange="calc()" from all.
Put <div align="center">
<table width="33%" border="0">
<tr>
<td align="Center">
<input type="button" value="Click To Calculate" onclick="calc()" />
</td>
</tr>
</div>

Unable to get Updated html in div

I am having a function in Javascript which is updating the textbox in the div to get updated html of div but it gives me blank value instead of updated one, Is anybody having idea why? Initialy the div is blank as below, and then I
<div id="editSeriesData">
<table cellpadding="5" cellspacing="0" width="400px">
<tr>
<td class="tableCell">
<table cellpadding="5" cellspacing="0">
<tr>
<td>Series</td>
<td><input type="text" value="" name="seriesid" id="seriesid" readonly /></td>
</tr>
<tr>
<td>Name</td>
<td width="30%"><input type="text" name="seriesname" id="seriesname" value="" /></td>
</tr>
<tr valign="top">
<td>Description</td>
<td><textarea rows="5" cols="50" name="description" id="description"></textarea></td>
</tr>
<tr>
<td colspan="2" align="center"><input type="button" name="submit" id="submit" value="Submit" onclick="javascript:validateFrm();" class="text ui-widget-content ui-corner-all" /></td>
</tr>
</table>
</td>
</tr>
</table>
</div>
And my Javascript method is:
function addEditSeries(seriesId){
document.getElementById('seriesid').value=seriesId;
document.getElementById('seriesname').value="dummy";
document.getElementById('description').value="dummy";
setTimeout(function(){
alert($('#editSeriesData').html());
showwindow('','','280','500','Product-Pack Series',true, true,$('#editSeriesData').html());
}, 1000);
}
The alert() shows me whole div but without the updated value which I updated in addEditSeries() method. The value of the input fields remain as default.

click the content slide up and slide down the following content?

<table>
<tr class="clicke">
<td colspan="2">
<img src="images/title_.gif" vspace="0" hspace="0" width="690" height="65"
border="0" alt="" />
</td>
</tr>
<tr class="tbl_even">
<td class="required">Name (First, Middle Initial, Last)</td>
<td>
<input type="text" name="realname" />
</td>
</tr>
<tr class="tbl_odd">
<td>Birth Date</td>
<td>
<input type="text" name="Birth Date" />
</td>
</tr>
<tr class="clicke">
<td colspan="2">
<img src="images/informati.gif" vspace="0" hspace="0" width="690" height="65"
border="0" alt="" />
</td>
</tr>
<tr class="tbl_odd">
<td>Present Address</td>
<td>
<input type="text" name="Present Address" style="width:250px;" />
</td>
</tr>
<tr class="tbl_even">
<td class="required">City</td>
<td>
<input type="text" name="City" value="credit-application.php" />
</td>
</tr>
</table>
when click the clicke class tr, the following tr will hide with slow up untill the next clicke tr. when click again, the following tr content will show with slow down.
my code:
$(document).ready(function(){
$(".clicke").click(function(){
$("tr").slideToggle("slow");
}
);
});
but all the tr are effect, which are not i want, how to determine the related tr content. thank you
i am sorry maybe i didn't say the question clear.
eg:
<tr class="clicke">
</tr>
click the tr. those tr will be show/hide
<tr class="tbl_even">
<td class="required">Name (First, Middle Initial, Last)</td>
<td>
<input type="text" name="realname" />
</td>
</tr>
<tr class="tbl_odd">
<td>Birth Date</td>
<td>
<input type="text" name="Birth Date" />
</td>
</tr>

EDIT: I see you've updated your question to make your intent clearer. I think the best way to achieve what you want is to group the form fields in one element, and toggle that element.
I think this is preferable to animating multiple table rows simultaneously, since I assume your goal is to animate all the associated fields at once, in a single animation.
Here's how you might do that:
<h2 class="clicke">CLICK ME #1</h2>
<table>
<tr class="tbl_even">
<td class="required">Name (First, Middle Initial, Last)</td>
<td><input type="text" name="realname" /></td>
</tr>
<tr class="tbl_odd">
<td>Birth Date</td>
<td><input type="text" name="Birth Date" /></td>
</tr>
</table>
<h2 class="clicke">CLICK ME #2</h2>
<table>
<tr class="tbl_odd">
<td>Present Address</td>
<td><input type="text" name="Present Address" /></td>
</tr>
<tr class="tbl_even">
<td class="required">City</td>
<td><input type="text" name="City" /></td>
</tr>
</table>​​​
jQuery:
$(document).ready(function(){
$('.clicke').next('table').hide();
$('.clicke').click(function(){
$(this).next('table').slideToggle('slow');
});
});​
Here is a demo: http://jsfiddle.net/ZvFQm/1/

I'm not secure to have correctly understend, but this could be a solution:
$(".clicke").toggle(
function(){
$(this).parent().find("tr").eq(1).hide();
},function(){
$(this).parent().find("tr").eq(1).show();
} );
See HERE to see the result

Please try editing the table format like in demo
Demo here
All it does is find next .slide table and perform slideToggle
$(".clicke").click(function(){
$(this).next('tr').find('.slide').slideToggle("slow");
});

Try This, It will work.
$(document).ready(function(){
$(".clicke").click(function(){
$(this).nextAll("tr:eq(0), tr:eq(1)").slideToggle("slow");
});
});

select specific input element in a specific row and column

Cosider this image:
How I can select it without it's ID with jQuery? I mean how I can select it like this statement:
Find Input in Row with Code=1000 and Column Desc2
thanks
Edit 1)
HTML Code
<table border="1" width="300px">
<tr>
<td>
Desc2
</td>
<td>
Desc1
</td>
<td>
Code
</td>
</tr>
<tr>
<td bgcolor="#CCCCB3">
<input id="Text1" type="text" />
</td>
<td>
</td>
<td>
1000
</td>
</tr>
<tr>
<td bgcolor="#FFFFCC">
</td>
<td bgcolor="#FFFFCC">
</td>
<td bgcolor="#FFFFCC">
</td>
</tr>
<tr>
<td bgcolor="#CCCCB3">
<input id="Text2" type="text" />
</td>
<td>
</td>
<td>
1001
</td>
<tr>
<td bgcolor="#CCCCB3" class="style1">
<input id="Text3" type="text" />
</td>
<td class="style1">
</td>
<td class="style1">
1002
</td>
</tr>
<tr>
<td bgcolor="#CCCCB3">
<input id="Text4" type="text" />
</td>
<td>
</td>
<td>
1003
</td>
</tr>
</table>

Select the last cell, filter the row whose last cell has a value which is equal to "1000", and select the first input element of the collection:
$("table td:last-of-type").filter(function(){
return $(this).text() == "1000";
}).parent().find("input:first");
For constructing such selectors, you can use the following:
:eq() and .eq()
:nth-child() (for a specific child position only!)
Warning: Do not fall in the trap of contains(). This method select all elements which contain the given phrase. .contains(1000) will also select <td>10000</td>.