我有这个下拉菜单:
document.addEventListener("DOMContentLoaded", function(event) {
allNameMuseums().forEach(function(item) { // ITERAZIONE
document.getElementById("myDropdown").innerHTML += '<a onclick="updateData(this)">' + item + '</a>';
})
});
function myFunction() {
document.getElementById("myDropdown").classList.toggle("show");
}
function filterFunction() {
input = document.getElementById("myInput");
filter = input.value.toUpperCase();
div = document.getElementById("myDropdown");
a = div.getElementsByTagName("a");
for (i = 0; i < a.length; i++) {
if (a[i].innerHTML.toUpperCase().indexOf(filter) > -1) {
a[i].style.display = "";
} else {
a[i].style.display = "none";
}
}
}<div class="dropdown">
<button onclick="myFunction()" class="dropbtn">Museo1</button>
<div id="myDropdown" class="dropdown-content">
<input type="text" placeholder="Search.." id="myInput" onkeyup="filterFunction()">
</div>
</div>我希望当我单击下拉菜单列表中的项目时，列表会自动关闭。
最佳答案
您需要的是从元素中删除“show”类。
例子:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
.dropbtn { background-color: #4CAF50; color: white; padding: 16px; font-size: 16px; border: none; cursor: pointer; }
.dropbtn:hover, .dropbtn:focus { background-color: #3e8e41; }
#myInput { border-box: box-sizing; background-image: url('searchicon.png'); background-position: 14px 12px; background-repeat: no-repeat; font-size: 16px; padding: 14px 20px 12px 45px; border: none; border-bottom: 1px solid #ddd; }
#myInput:focus { outline: 3px solid #ddd; }
.dropdown { position: relative; display: inline-block; }
.dropdown-content { display: none; position: absolute; background-color: #f6f6f6; min-width: 230px; overflow: auto; border: 1px solid #ddd; z-index: 1; }
.dropdown-content a { color: black; padding: 12px 16px; text-decoration: none; display: block; }
.dropdown a:hover { background-color: #ddd; }
.show { display: block; }
</style>
</head>
<body>
<h2>Search/Filter Dropdown</h2>
<p>Click on the button to open the dropdown menu [...]</p>
<div class="dropdown">
<button onclick="myFunction()" class="dropbtn">Dropdown</button>
<div id="myDropdown" class="dropdown-content">
<input type="text" placeholder="Search.." id="myInput" onkeyup="filterFunction()">
<a href="#about" onclick="select()">Item1</a>
<a href="#base" onclick="select()">Item2</a>
</div>
</div>
<script>
function myFunction() {
document.getElementById("myDropdown").classList.toggle("show");
}
function filterFunction() {
var input, filter, ul, li, a, i;
input = document.getElementById("myInput");
filter = input.value.toUpperCase();
div = document.getElementById("myDropdown");
a = div.getElementsByTagName("a");
for (i = 0; i < a.length; i++) {
if (a[i].innerHTML.toUpperCase().indexOf(filter) > -1) {
a[i].style.display = "";
} else {
a[i].style.display = "none";
}
}
}
function select() {
//Your item selection logic here...
myFunction();
}
</script>
</body>
</html>关于javascript - 下拉菜单的关闭列表，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52627960/