如何更改主頁上帶有文本框的模式彈出窗口的內部

Question

我想對模式彈出窗口做一些事情，但是我對模式彈出窗口及其代碼沒有太多的了解。

因此，我想使用主頁上的文本框更改模式彈出窗口的內部。 我將在文本框中寫一些內容，然后單擊按鈕時，應該更改模式彈出窗口的內部。 當我向文本框寫一些東西並點擊主網頁的enter段落時，模式彈出框內還有一個帶有按鈕的文本框。

我嘗試過這樣的事情：

的HTML

<h2>Modal Example</h2>

<!-- Trigger/Open The Modal -->
<input type="text" id="to" value="Something">
<br>
<button id="myBtn" onclick="myFunction()">Open Modal</button>

<!-- The Modal -->
<div id="myModal" class="modal">

    <!-- Modal content -->
    <div class="modal-content">

        <br>
        <span class="close">&times;</span>
        <p id="demo">.</p>
    </div>

</div>

的CSS

/* The Modal (background) */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    padding-top: 100px; /* Location of the box */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgb(0,0,0); /* Fallback color */
    background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}

/* Modal Content */
.modal-content {
    background-color: #fefefe;
    margin: auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
}

/* The Close Button */
.close {
    color: #aaaaaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

JS

function myFunction(){
 var x = document.getElementById("to").innerHTML;
 document.getElementById("demo").innerHTML=x;
 }
// Get the modal
var modal = document.getElementById('myModal');

// Get the button that opens the modal
var btn = document.getElementById("myBtn");

// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];

// When the user clicks the button, open the modal
btn.onclick = function() {
    modal.style.display = "block";
}

// When the user clicks on <span> (x), close the modal
span.onclick = function() {
    modal.style.display = "none";
}

// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
    if (event.target == modal) {
        modal.style.display = "none";
    }
}

Answer 1

您是否需要這種實現。
請運行該示例以查看其實際效果。

 // Get the modal var modal = document.getElementById('myModal'); //Modal open function function openModal() { modal.style.display = "block"; document.getElementById('demo').innerHTML = document.getElementById('to').value; } //Modal text update function function udpateText() { modal.style.display = "none"; document.getElementById('paragraph').innerHTML = document.getElementById('from').value; } // Get the <span> element that closes the modal var span = document.getElementsByClassName("close")[0]; // When the user clicks on <span> (x), close the modal span.onclick = function() { modal.style.display = "none"; } // When the user clicks anywhere outside of the modal, close it window.onclick = function(event) { if (event.target == modal) { modal.style.display = "none"; } } 

 /* The Modal (background) */ .modal { display: none; /* Hidden by default */ position: fixed; /* Stay in place */ z-index: 1; /* Sit on top */ padding-top: 100px; /* Location of the box */ left: 0; top: 0; width: 100%; /* Full width */ height: 100%; /* Full height */ overflow: auto; /* Enable scroll if needed */ background-color: rgb(0, 0, 0); /* Fallback color */ background-color: rgba(0, 0, 0, 0.4); /* Black w/ opacity */ } /* Modal Content */ .modal-content { background-color: #fefefe; margin: auto; padding: 20px; border: 1px solid #888; width: 80%; } /* The Close Button */ .close { color: #aaaaaa; float: right; font-size: 28px; font-weight: bold; } .close:hover, .close:focus { color: #000; text-decoration: none; cursor: pointer; } 

 <h2>Modal Example</h2> <p id="paragraph"></p> <!-- Trigger/Open The Modal --> <input type="text" id="to" value="Something"> <br> <button id="myBtn" onclick="openModal()">Open Modal</button> <!-- The Modal --> <div id="myModal" class="modal"> <!-- Modal content --> <div class="modal-content"> <br> <span class="close">&times;</span> <p id="demo">.</p> <input type="text" id="from" value=""> <br> <button id="myModalBtn" onclick="udpateText()">Update Text</button> </div> </div> 

Answer 2

這是使用jquery ui模態的實現。

此行將文本輸入放入模態內容中。 $('#content').text($('#myinput').val());

這是小提琴。 https://jsfiddle.net/8emj1ywp/1/