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Hi @RAVI,
After repeated testing, I have tested the code that meets your needs. You can refer to it.
<script type="text/javascript">
$(document).ready(function () {
var thArray = [];
$('#list > thead > tr > th').each(function () {
thArray.push($(this).text())
})
var rowCount = $('table#list tbody tr').length;
sessionStorage.setItem("rowCount", rowCount);
// Remove the formatting to get integer data for summation
var intVal = function (i) {
return typeof i === 'string' ?
i.replace(/[\$,]/g, '') * 1 :
typeof i === 'number' ?
i : 0;
};
$('#list').DataTable({
"ordering": false,
dom: 'Bfrtip',
"buttons": [{
extend: 'excel',
footer: true,
// title: "Test",
exportOptions: {
columns: [0, 1, 2, 3],
format: {
header: function (data, index, column) {
return thArray[index]
}
}
}
}
],
lengthMenu: [
[2000, 1500, 1000, 500, -1],
[2000, 1500, 1000, 500, 'All'],
],
initComplete: function () {
this.api().columns([2]).every(function () {
var title = this.header();
var colTitle = this.header().innerHTML;
//replace spaces with dashes
title = $(title).html().replace(/[\W]/g, '-');
var column = this;
var select = $('<select id="' + title + '" class="select2" ></select>')
.appendTo($(column.header()).empty())
.on('change', function () {
//Get the "text" property from each selected data
//regex escape the value and store in array
var data = $.map($(this).select2('data'), function (value, key) {
return value.text ? '^' + $.fn.dataTable.util.escapeRegex(value.text) + '$' : null;
});
//if no data selected use ""
if (data.length === 0) {
data = [""];
}
//join array into string with regex or (|)
var val = data.join('|');
//search for the option(s) selected
column
.search(val ? val : '', true, false)
.draw();
});
column.data().unique().sort().each(function (d, j) {
select.append('<option value="' + d + '">' + d + '</option>');
});
//use column title as selector and placeholder
$('#' + title).select2({
multiple: true,
closeOnSelect: false,
width: '100%',
placeholder: "" + colTitle
});
//initially clear select otherwise first option is selected
$('.select2').val(null).trigger('change');
});
},
footerCallback: function (tfoot, data, start, end, display) {
let api = this.api();
api.column(0).footer().innerHTML = "GRAND TOTAL";
// Total over all pages
total = api
.column(2, { search: 'applied' })
.data()
.reduce((a, b) => intVal(a) + intVal(b), 0);
// Update footer
api.column(2).footer().innerHTML = total;
total1 = api
.column(3, { search: 'applied' })
.data()
.reduce((a, b) => intVal(a) + intVal(b), 0);
// Update footer
api.column(3).footer().innerHTML = total1;
},
"drawCallback": function (settings) {
var api = this.api();
var rows = api.rows({ page: 'current' }).nodes();
var colonne = api.row(0).data().length;
var totale = new Array();
totale['Totale'] = new Array();
var groupid = -1;
var subtotale = new Array();
var b = api.column(0).data().unique().reverse();
var last = b[0];
api.column(0, { page: 'current' }).data().each(function (group, i) {
if (last !== group) {
groupid++;
$(rows).eq(i-1).after(
'<tr class="group" style="font-weight: bold;background:forestgreen; text-align: left;border: 1px solid black"><td colspan="2">' + last + '</td></tr>'
);
last = group;
}
val = api.row(api.row($(rows).eq(i)).index()).data(); //current order index
$.each(val, function (index2, val2) {
if (typeof subtotale[groupid] == 'undefined') {
subtotale[groupid] = new Array();
}
if (typeof subtotale[groupid][index2] == 'undefined') {
subtotale[groupid][index2] = 0;
}
if (typeof totale['Totale'][index2] == 'undefined') { totale['Totale'][index2] = 0; }
valore = Number(val2);
subtotale[groupid][index2] += valore;
totale['Totale'][index2] += valore;
});
});
$('tbody').find('.group').each(function (i, v) {
$(this).find('td:first').append($('<span />', { 'class': 'rowCount-grid' }));
var subtd = '';
for (var a = 2; a < colonne; a++) {
subtd += '<td>' + subtotale[i][a] + '</td>';
}
$(this).append(subtd);
});
}
});
});
</script>
Best regards,
Lan Huang
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