Refresh jQuery datatable table - ajax

Question

Been plenty of questions about this but I never found one that worked for me. I have a plain and simple HTML table whos body is being filled with rows from an AJAX call.
Then I want to update the table with DataTable plugin but it does not work.
I have a HTML table that looks like this:
<table id="myTable">
<thead>
<tr>
<th>1</th>
<th>2</th>
<th>3</th>
<th>4</th>
<th>5</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
In my jQuery pageload
$(document).ready(function(){
var oTable = $('#myTable').dataTable({
"aoColumns": [
{ "bSortable": false },
null, null, null, null
]
});
});
And finally my on dropdownlist change function
$("#dropdownlist").on("change", function () {
$("tbody").empty();
$.ajax({
type: "POST",
url: "#Url.Action("ActionHere", "Controller")",
dataType: "json",
success: function (data) {
$.each(data, function (key, item) {
$("tbody").append("<tr><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr>");
});
}
})
var oTable = $('#myTable').dataTable(); // Nothing happens
var oTable = $('#myTable').dataTable({ // Cannot initialize it again error
"aoColumns": [
{ "bSortable": false },
null, null, null, null
]
});
});
The append and so on has been modified to shorten it down, etc so do not focus too much on it.
Basically the question is how to update the table, I can do my AJAX and add new data to the table fine, but the datatable plugin does not update with it.
I've tried other things like
.fnDraw(false);
But it does nothing
While I get an JSON error from
fnReloadAjax()
Any clues on just how to refresh the table?

Answer 1

Try this
Initially you initialized the table so first clear that table
$('#myTable').dataTable().fnDestroy();
Then initialize again after ajax success
$('#myTable').dataTable();
Like this
$("#dropdownlist").on("change", function () {
$("tbody").empty();
$.ajax({
type: "POST",
url: "#Url.Action("ActionHere", "Controller")",
dataType: "json",
success: function (data) {
$.each(data, function (key, item) {
$("tbody").append("<tr><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr>");
});
}
})
$('#myTable').dataTable().fnDestroy();
$('#myTable').dataTable({ // Cannot initialize it again error
"aoColumns": [
{ "bSortable": false },
null, null, null, null
]
});
});
DEMO

Answer 2

I Know this is an old post, but I've just investigated about the problem and I find the easiest way to solve it in DataTable man pages: https://datatables.net/reference/api/ajax.reload%28%29
All you need to call table.ajax.reload();

Answer 3

var table = $('#product_table').DataTable({
"bProcessing": true,
"serverSide": true,
responsive: true,
"ajax": {
url: get_base_url + "product_table", // json datasource
type: "post", // type of method ,GET/POST/DELETE
error: function () {
$("#employee_grid_processing").css("display", "none");
}
}
});
//call this funtion
$(document).on('click', '#view_product', function () {
table.ajax.reload();
});

Answer 4

I had done something that relates to this... Below is a sample javascript with what you need. There is a demo on this here: http://codersfolder.com/2016/07/crud-with-php-mysqli-bootstrap-datatables-jquery-plugin/
//global the manage member table
var manageMemberTable;
function updateMember(id = null) {
if(id) {
// click on update button
$("#updatebutton").unbind('click').bind('click', function() {
$.ajax({
url: 'webdesign_action/update.php',
type: 'post',
data: {member_id : id},
dataType: 'json',
success:function(response) {
if(response.success == true) {
$(".removeMessages").html('<div class="alert alert-success alert-dismissible" role="alert">'+
'<button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>'+
'<strong> <span class="glyphicon glyphicon-ok-sign"></span> </strong>'+response.messages+
'</div>');
// refresh the table
manageMemberTable.ajax.reload();
// close the modal
$("#updateModal").modal('hide');
} else {
$(".removeMessages").html('<div class="alert alert-warning alert-dismissible" role="alert">'+
'<button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>'+
'<strong> <span class="glyphicon glyphicon-exclamation-sign"></span> </strong>'+response.messages+
'</div>');
// refresh the table
manageMemberTable.ajax.reload();
// close the modal
$("#updateModal").modal('hide');
}
}
});
}); // click remove btn
} else {
alert('Error: Refresh the page again');
}
}

Answer 5

From version 1.10.0 onwards you can use ajax.reload() api.
var table = $('#myTable').DataTable();
table.ajax.reload();
Keep in mind to use $('#myTable').DataTable() and not
$('#myTable').dataTable()