I am doing invoice in CI. I want to calculate the amount and I am able to do first row’s (dynamically created). But for second-row, it’s not working. can someone help me with this?.i hope my question is clear…
My code for inserting row dynamically
function addRow(tableID) {
var table = document.getElementById(tableID);
var rowCount = table.rows.length-1;
var row = table.insertRow(rowCount);
//Column 1
var cell1 = row.insertCell(0);
cell1.innerHTML = '<input type="text" name="item[]" id="item">'
//Column 2
var cell2 = row.insertCell(1);
cell2.innerHTML = '<input type="number" name="qty[]" id="qty" onkeyup="calc()">';
//Column 3
var cell3 = row.insertCell(2);
cell3.innerHTML = '<input type="number" name="rate[]" id="rate">';
//Column 4
var cell4 = row.insertCell(3);
cell4.innerHTML = '<input type="number" name="tax[]" id="tax">';
//Column 5
var cell5 = row.insertCell(4);
cell5.innerHTML = '<input type="number" name="amound[]" id="amound" readonly>';
//Column 6
var cell6 = row.insertCell(5);
cell6.innerHTML = '<input id="Button" type="button" value="Delete" class="delete-row btn btn-danger"/>';
}
$(document).on('click', '.delete-row', function() {
$(this).parents('tr').remove();
});
and here is my js code for calculation
function calc(){
var textValue1 = document.getElementById('qty').value;
var textValue2 = document.getElementById('rate').value;
var textValue3 = document.getElementById('tax').value;
var mul = textValue1 * textValue2;
var tax = mul*(textValue3/100);
var result = +textValue2 + +tax;
document.getElementById('amound').value = result;
}
Answer
The main problem with your script is that you are using ID instead of Classes on your input elements. ID’s should be unique, classes can be repeated x amount of times. And you are combining vanilla javascript with jQuery javascript.
Try to compare your own code with the example script I created. Hopefully, you can see the difference and add it to your own script.
My example: https://jsfiddle.net/tnv73mL4/
var myTable = $("#myTable");
$(document).on('click', '.delete-row', function() {
$(this).parents('tr').remove();
});
$(document).on('keyup', 'input', function() {
inputs = $(this).parents('tr');
calc(inputs);
});
function calc(inputs){
var qty = inputs.find('.qty').val();
var rate = inputs.find('.rate').val();
var tax = inputs.find('.tax').val();
var mul = qty * rate;
var tax = mul*(tax/100);
var result = +rate + +tax;
inputs.find('.amount').val(result);
}