NewPHP NewPHP - 3 years ago 119
Javascript Question

Adding Up and Down Arrows according to Order Type

I am getting data from database through ajax & PHP, the returned data is shown as a table, i created a function to sort table column ascending or descending, i want to add arrows beside the column name to show up in case of

ascending order
& down in case of
descending order
, how can this be done?

HTML Code

<head>
<link rel="stylesheet" href="../lib/css/bootstrap.min.css" type="text/css"/>
<script src="https://use.fontawesome.com/d7a6f6be38.js"></script>
<script type="text/javascript" src="../lib/js/jquery-3.1.1.min.js"></script>
<link href="//cdn.datatables.net/1.10.16/css/jquery.dataTables.min.css" rel="stylesheet"/>
<script src="//cdn.datatables.net/1.10.16/js/jquery.dataTables.min.js"></script>
</head>
<div class="row">
<div id="OrderTable"></div>
</div>


Part of PHP page
searchorders.php


<?php
$output.='<hr />
<table id="SearchResults" class="table table-striped table-bordered" style="width:auto;">
<thead>
<tr>
<th>Order No.</th>
<th>Customer Name</th>
<th>Order Date</th>
<th>Category Name</th>
<th>Category Type</th>
<th>Quantity in Kilos</th>
<th>Delivery Date</th>
<th>Order Status</th>
</tr>
</thead>
';

echo $output;
?>


Javascript Function

function SearchOrders()
{
document.getElementById("OrderTable").innerHTML="";
document.getElementById("NoData").innerHTML="";
document.getElementById("Results").style.display = 'none';

startDate=document.getElementById("Start_Date").value;
endDate=document.getElementById("End_Date").value;

$.ajax({
type:"POST",
url:"searchorders.php",
data:
{
'StartDate': startDate,
'EndDate':endDate
},
success: function(data)
{
if (data == "Failed")
{
$('#NoData').append("No data Found!");
}
else
{
$('#OrderTable').append(data);
document.getElementById("Results").style.display = 'block';

$('#SearchResults').DataTable({"columnDefs": [ {
"targets": [0,4,5,6],
"orderable": false
}]});
}
}
})
}

Answer Source

First add up(for ascending) and down(for descending) arrows. I am using text inside span here which you can replace with icons or something but keep the id on them the same.

<th onclick="sortTable(1)">
  <span id="asc1">Up</span>
  <span id="desc1">Down</span>
  Customer Name
</th>
<th onclick="sortTable(2)">
  <span id="asc2">Up</span>
  <span id="desc2">Down</span>
  Order Date
</th>
<th onclick="sortTable(3)">
  <span id="asc3">Up</span>
  <span id="desc3">Down</span>
  Category Name
</th>

Then hide them in the css and style them more as you like

th>span{
  display:none;
}

Then write the jquery code since you are passing n to the function and you know the direction of sort too. so just reverse engineer the id and show that arrow.

$('th>span').hide();
var idChange = '#'+ dir + n;
$(idChange).show();
Recommended from our users: Dynamic Network Monitoring from WhatsUp Gold from IPSwitch. Free Download