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Question

我创建了一个InputFilter。这是我的代码。

MyFilter = function(args) {
    var dataUrl = args.url;
    var divID = args.divID;
    var div = document.getElementById(divID);
    //var input = '<input type="text" id="myInput" onclick="myFunction()" title="Type in a name">';
    var myTable = '<input type="text" id="myInput" onkeyup="myFunction()" placeholder="Search for names.." title="Type in a name">' +
        '<ul id="myUL">' + '<li>' + '<a href="#"></a>' + '</li>' + '</ul>';
    div.innerHTML = myTable;

    function foo(callback) {
        var httpRequest = new XMLHttpRequest();
        httpRequest.open('GET', "data.json", true);
        httpRequest.onreadystatechange = function() {
            if (httpRequest.readyState === XMLHttpRequest.DONE && httpRequest.status === 200) {
                callback(httpRequest.responseText);
            }
        };
        httpRequest.send();
    }

    foo(function(data) {
        debugger;
        var jsonc = JSON.parse(data);
        var new_opt = "";
        for (i = 0; i < jsonc.length; i++) {
            new_opt += '<li><a href="#">' + jsonc[i]['VALUE'] + '</a></li>';
        }
        document.getElementById('myUL').innerHTML = new_opt;

    });

    myFunction = function() {
        debugger;
        var input, filter, ul, li, a, i;
        input = document.getElementById("myInput");
        filter = input.value.toUpperCase();
        ul = document.getElementById("myUL");
        li = ul.getElementsByTagName("li");
        for (i = 0; i < li.length; i++) {
            a = li[i].getElementsByTagName("a")[0];
            if (a.innerHTML.toUpperCase().indexOf(filter) > -1) {
                li[i].style.display = "";
            } else {
                li[i].style.display = "none";

            }
        }
    }
}

我希望当我点击列表项时，这些项目会被选中并显示到inputfield中，就像组合框一样。

任何人都可以帮我解决这个问题。

这是我的小提琴手。 JS FIDDLE

注意：目前我的代码能够搜索，我想在输入中选择并显示。

它正在其他项目中发生，但我正在使用表格。

代码是

document.querySelectorAll('#myTable tr:not(.header)').forEach(function(_tr) {
            _tr.addEventListener('click', function() {
                document.getElementById('myInput').value += " ; " + this.getElementsByTagName('td')[0].textContent;
            });
        });

我想点击a标记的项目以及希望通过;分隔在输入标记中显示的所选项目。

Answer 1

尝试这个

使用jquery，您可以在textfield

中设置所选名称

function myFunction() {
  var input, filter, ul, li, a, i;
  input = document.getElementById("myInput");
  filter = input.value.toUpperCase();
  ul = document.getElementById("myUL");
  li = ul.getElementsByTagName("li");
  for (i = 0; i < li.length; i++) {
    a = li[i].getElementsByTagName("a")[0];
    if (a.innerHTML.toUpperCase().indexOf(filter) > -1) {
      li[i].style.display = "";
    } else {
      li[i].style.display = "none";

    }
  }
}
$('a').click(function() {
  var val = $(this).text();
  $('#myInput').val(val);
})

* {
  box-sizing: border-box;
}

#myInput {
  background-image: url('/css/searchicon.png');
  background-position: 10px 12px;
  background-repeat: no-repeat;
  width: 100%;
  font-size: 16px;
  padding: 12px 20px 12px 40px;
  border: 1px solid #ddd;
  margin-bottom: 12px;
}

#myUL {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

#myUL li a {
  border: 1px solid #ddd;
  margin-top: -1px;
  /* Prevent double borders */
  background-color: #f6f6f6;
  padding: 12px;
  text-decoration: none;
  font-size: 18px;
  color: black;
  display: block
}

#myUL li a.header {
  background-color: #e2e2e2;
  cursor: default;
}

#myUL li a:hover:not(.header) {
  background-color: #eee;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<h2>My Phonebook</h2>

<input type="text" id="myInput" onkeyup="myFunction()" placeholder="Search for names.." title="Type in a name">

<ul id="myUL">
  <li><a href="#" class="header">A</a></li>
  <li><a href="#">Adele</a></li>
  <li><a href="#">Agnes</a></li>

  <li><a href="#" class="header">B</a></li>
  <li><a href="#">Billy</a></li>
  <li><a href="#">Bob</a></li>

  <li><a href="#" class="header">C</a></li>
  <li><a href="#">Calvin</a></li>
  <li><a href="#">Christina</a></li>
  <li><a href="#">Cindy</a></li>
</ul>

Answer 2

Playground

＆＃13;

function filterList(value, list) {
    var li, i, match;
    
    for (i = list.children.length; i--; ) {
        li = list.children[i];
        match = li.textContent.toLowerCase().indexOf(value.toLowerCase()) > -1;
        li.classList.toggle('hidden', !match)
    }
}

function selectItem(input, value){
	input.value = value;
}


var input = document.querySelector('input'),
	list = document.querySelector("#myUL");

input.addEventListener('input', function(e){
	filterList(e.target.value, list);
})
list.addEventListener('click', function(e){
	if( e.target.tagName == 'A' && !e.target.classList.contains('header') )
		selectItem( input, e.target.textContent )
})

＆＃13;

* {
  box-sizing: border-box;
}

input {
  background-image: url('/css/searchicon.png');
  background-position: 10px 12px;
  background-repeat: no-repeat;
  width: 100%;
  font-size: 16px;
  padding: 12px 20px 12px 40px;
  border: 1px solid #ddd;
  margin-bottom: 12px;
}

#myUL {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

#myUL li a {
  border: 1px solid #ddd;
  margin-top: -1px; /* Prevent double borders */
  background-color: #f6f6f6;
  padding: 12px;
  text-decoration: none;
  font-size: 18px;
  color: black;
  display: block
}

#myUL li.hidden{ display:none; }

#myUL li a.header {
  background-color: #e2e2e2;
  cursor: default;
}

#myUL li a:hover:not(.header) {
  background-color: #eee;
}

＆＃13;

<h2>My Phonebook</h2>

<input placeholder="Search for names.." title="Type in a name">

<ul id="myUL">
  <li><a href="#" class="header">A</a></li>
  <li><a href="#">Adele</a></li>
  <li><a href="#">Agnes</a></li>

  <li><a href="#" class="header">B</a></li>
  <li><a href="#">Billy</a></li>
  <li><a href="#">Bob</a></li>

  <li><a href="#" class="header">C</a></li>
  <li><a href="#">Calvin</a></li>
  <li><a href="#">Christina</a></li>
  <li><a href="#">Cindy</a></li>
</ul>

＆＃13;

如何在输入标签中选择列表项

2 个答案:

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