I'm trying to hide the whole div(where there's a table inside) when the result from filtering/searching thru the table is empty.
So far, I have this:
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* {
box-sizing: border-box;
}
#myInput {
background-image: url('/css/searchicon.png');
background-position: 10px 10px;
background-repeat: no-repeat;
width: 100%;
font-size: 16px;
padding: 12px 20px 12px 40px;
border: 1px solid #ddd;
margin-bottom: 12px;
}
.mytable {
border-collapse: collapse;
width: 100%;
border: 1px solid #ddd;
font-size: 18px;
}
.mytable th, .mytable td {
text-align: left;
padding: 12px;
}
.mytable tr {
border-bottom: 1px solid #ddd;
}
.mytable tr.header, .mytable tr:hover {
background-color: #f1f1f1;
}
</style>
</head>
<body>
<h2>My Customers</h2>
<input type="text" id="myInput" onkeyup="myFunction()" placeholder="Search for names.." title="Type in a name">
<div id="myTable1div">
<table id="myTable" data-name="mytable">
<tr >
<th style="width:60%;">Name</th>
<th style="width:40%;">Country</th>
</tr>
<tr>
<td>Alfreds Futterkiste</td>
<td>Germany</td>
</tr>
<tr>
<td>Berglunds snabbkop</td>
<td>Sweden</td>
</tr>
<tr>
<td>Island Trading</td>
<td>UK</td>
</tr>
<tr>
<td>Laughing Bacchus Winecellars</td>
<td>Canada</td>
</tr>
</table>
</div>
<br><br>
<div id="myTable1div">
<table id="myTable" data-name="mytable">
<tr >
<th style="width:60%;">Name</th>
<th style="width:40%;">Country</th>
</tr>
<tr>
<td>Alfreds Futterkiste</td>
<td>Germany</td>
</tr>
<tr>
<td>Berglunds snabbkop</td>
<td>Sweden</td>
</tr>
<tr>
<td>Island Trading</td>
<td>UK</td>
</tr>
</table>
</div>
<script>
function myFunction() {
var input, filter, table, tr, td, i,alltables;
alltables = document.querySelectorAll("table[data-name=mytable]");
input = document.getElementById("myInput");
filter = input.value.toUpperCase();
alltables.forEach(function(table){
tr = table.getElementsByTagName("tr");
for (i = 0; i < tr.length; i ) {
td = tr[i].getElementsByTagName("td")[0];
if (td) {
if (td.innerHTML.toUpperCase().indexOf(filter) > -1) {
tr[i].style.display = "";
} else {
tr[i].style.display = "none";
}
}
}
});
}
</script>
<! ––hide div that doesnt have any data––>
<script>
$(function(){
var hide = true;
$('#myTable td').each(function(){
var td_content = $(this).text();
if(td_content!=""){
hide = false;
}
})
if(hide){
$('#myTable1div').hide();
}
})
</script>
</body>
</html>
As you can see, although the table is properly searched, the div and the table that has no value in its <td>
is still showing.
How can I hide the whole div if the table's <td>
is empty while searching it?
CodePudding user response:
Your first problem is that you had several elements with the same ID, e.g. <div id="myTable1div">
. I had to give them each a separate ID.
I created a helper function, hideDivs()
, which counts the number of rows which are set to display: none
, and if there is just one of them (i.e. the header), then hide that corresponding <div>
.
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
* {
box-sizing: border-box;
}
#myInput {
background-image: url('/css/searchicon.png');
background-position: 10px 10px;
background-repeat: no-repeat;
width: 100%;
font-size: 16px;
padding: 12px 20px 12px 40px;
border: 1px solid #ddd;
margin-bottom: 12px;
}
.mytable {
border-collapse: collapse;
width: 100%;
border: 1px solid #ddd;
font-size: 18px;
}
.mytable th,
.mytable td {
text-align: left;
padding: 12px;
}
.mytable tr {
border-bottom: 1px solid #ddd;
}
.mytable tr.header,
.mytable tr:hover {
background-color: #f1f1f1;
}
</style>
</head>
<body>
<h2>My Customers</h2>
<input type="text" id="myInput" onkeyup="myFunction()" placeholder="Search for names.." title="Type in a name">
<div id="myTable1div">
<table id="myTable" data-name="mytable">
<tr >
<th style="width:60%;">Name</th>
<th style="width:40%;">Country</th>
</tr>
<tr>
<td>Alfreds Futterkiste</td>
<td>Germany</td>
</tr>
<tr>
<td>Berglunds snabbkop</td>
<td>Sweden</td>
</tr>
<tr>
<td>Island Trading</td>
<td>UK</td>
</tr>
<tr>
<td>Laughing Bacchus Winecellars</td>
<td>Canada</td>
</tr>
</table>
</div>
<br><br>
<div id="myTable2div">
<table id="myTable2" data-name="mytable">
<tr >
<th style="width:60%;">Name</th>
<th style="width:40%;">Country</th>
</tr>
<tr>
<td>Alfreds Futterkiste</td>
<td>Germany</td>
</tr>
<tr>
<td>Berglunds snabbkop</td>
<td>Sweden</td>
</tr>
<tr>
<td>Island Trading</td>
<td>UK</td>
</tr>
</table>
</div>
<script>
function hideDivs() {
['#myTable1div', '#myTable2div'].forEach(function (id) {
// From https://stackoverflow.com/a/5325109/378779
if ($(id ' tr:not([style*="display: none"])').length == 1) {
$(id).hide();
} else {
$(id).show();
}
})
}
function myFunction() {
var input, filter, table, tr, td, i, alltables;
alltables = document.querySelectorAll("table[data-name=mytable]");
input = document.getElementById("myInput");
filter = input.value.toUpperCase();
alltables.forEach(function (table) {
tr = table.getElementsByTagName("tr");
for (i = 0; i < tr.length; i ) {
td = tr[i].getElementsByTagName("td")[0];
if (td) {
if (td.innerHTML.toUpperCase().indexOf(filter) > -1) {
tr[i].style.display = "";
} else {
tr[i].style.display = "none";
}
}
}
});
hideDivs();
}
// hide div that doesn't have any data
hideDivs();
</script>
</body>
</html>
CodePudding user response:
Try checking if the element is rendered in the DOM before hiding it.
You can do this by if ($('#myTable1div').is(':visible'))