表格过滤器“未找到”消息(HTML JS)
2021-01-15
504
如果筛选完成后,列表中没有任何值与输入值匹配,则尝试显示“未找到”文本。我使用了不同的方法,但都没有用,这是我的代码。提前谢谢您。
<body>
<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>
</table>
<script>
function myFunction() {
var input, filter, table, tr, td, i, txtValue;
input = document.getElementById("myInput");
filter = input.value.toUpperCase();
table = document.getElementById("myTable");
tr = table.getElementsByTagName("tr");
for (i = 0; i < tr.length; i++) {
td = tr[i].getElementsByTagName("td")[0];
if (td) {
txtValue = td.textContent || td.innerText;
if (txtValue.toUpperCase().indexOf(filter) > -1) {
tr[i].style.display = "";
} else {
tr[i].style.display = "none";
}
}
}
}
</script>
</body>
我使用的方法是在 html 上添加 div 文本,其类名为“text”,样式为“display: none”,之后我在 js 中的“else”下方添加了此代码:document.getElementById("text").style.display = "none"。之后,当您在输入中键入内容时,此文本会立即显示。
1个回答
这可能就是您所需要的 :) 如果您使用 JQuery 或 CSS,或者获得一些 MIT 许可的网格可能会看起来更好,并且您将拥有开箱即用的功能 :) 您可以看看这个 http://www.jquery-bootgrid.com/Examples
<body>
<input type="text" id="myInput" onkeyup="myFunction()" placeholder="Search for names.." title="Type in a name">
<table id="myTable">
<tr class="header ignore-search">
<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 id="not-found-row" class="ignore-search" style="display:none">
<td>Not found</td>
</tr>
</table>
<script>
function myFunction() {
var input, filter, table, tr, td, i, txtValue;
input = document.getElementById("myInput");
filter = input.value.toUpperCase();
table = document.getElementById("myTable");
tr = table.getElementsByTagName("tr");
for (i = 0; i < tr.length; i++) {
td = tr[i].getElementsByTagName("td")[0];
if (td) {
txtValue = td.textContent || td.innerText;
if (txtValue.toUpperCase().indexOf(filter) > -1) {
tr[i].style.display = "";
} else {
tr[i].style.display = "none";
}
}
}
var resultsNotFound = true;
document.querySelectorAll("table tr:not(.ignore-search)").forEach(tr => {
var isHidden = tr.offsetParent === null
if(!isHidden) {
resultsNotFound = false;
}
})
var notFoundLabel = document.getElementById('not-found-row');
if(resultsNotFound) {
notFoundLabel.style.display = "";
} else {
notFoundLabel.style.display = "none";
}
}
</script>
</body>
A.Sideris
2021-01-15