我想使用基于列的选择过滤器创建搜索框 我已经创造了这个 http://www.w3schools.com/code/tryit.asp?filename=FBWZ3PB6XZWP 但我无法通过"所有"柱
答案 0 :(得分:0)
这应该取代评论// all
:
for (i = 1; i < tr.length; i++) {
// text from all the tds
var combinedText = "";
// get all the tds (array of them notice there is no [selectz] at the end)
var td = tr[i].getElementsByTagName("td");
// loop over all of them and accumulate their text
for(var j = 0; j < td.length; j++)
combinedText += td[j].innerHTML.toUpperCase();
// if filter is in the accumulated text then show the row else hide it
if (combinedText.indexOf(filter) > -1) {
tr[i].style.display = "";
} else {
tr[i].style.display = "none";
}
}
答案 1 :(得分:0)
我对您的代码进行了一些更改,现在正在运行。你可以找到下面的解决方案:)。我建议您稍微更改一下代码,以便更具可读性。
干杯!
<!DOCTYPE html>
<html>
<head>
<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>
<select id="myselect2" name="myselect2">
<option value="0">Name</option>
<option value="1">Country</option>
<option value="2">All</option>
</select>
<input type="text" id="myInput" onkeyup="myFunction()" placeholder="Search for names.." title="Type in a name">
<table id="myTable">
<tr class="header">
<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>Koniglich Essen</td>
<td>Germany</td>
</tr>
<tr>
<td>Laughing Bacchus Winecellars</td>
<td>Canada</td>
</tr>
<tr>
<td>Magazzini Alimentari Riuniti</td>
<td>Italy</td>
</tr>
<tr>
<td>North/South</td>
<td>UK</td>
</tr>
<tr>
<td>Paris specialites</td>
<td>France</td>
</tr>
</table>
<script>
function myFunction() {
var input, filter, table, tr, td, i, selectz;
input = document.querySelector("#myInput");
filter = input.value.toUpperCase();
table = document.getElementById("myTable");
tr = document.querySelectorAll("tr");
selectz=document.getElementById("myselect2").options[document.getElementById("myselect2").selectedIndex].value;
if(selectz==2){
tr.forEach(function(row){
var content = row.innerHTML.toUpperCase(),
display = 'none';
if(content.indexOf(filter) != -1){
display = '';
}
row.style.display = display;
});
}else{
for (i = 0; i < tr.length; i++) {
td = tr[i].getElementsByTagName("td")[selectz];
if (td) {
if (td.innerHTML.toUpperCase().indexOf(filter) > -1) {
tr[i].style.display = "";
} else {
tr[i].style.display = "none";
}
}
}
}
}
</script>
</body>
</html>
答案 2 :(得分:0)
你可以在&#34; selectz == 2&#34;情况下。
for (i = 1; i < tr.length; i++) {
if (tr.textContent.toUpperCase().indexOf(filter) > -1) {
tr[i].style.display = "";
} else {
tr[i].style.display = "none";
}
}