如何使用 JQuery 动态添加 div？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/953415/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to dynamically add a div using JQuery?
提问by Xaisoft
I have the following html which displays 3 textboxes and an add button:
我有以下 html，它显示 3 个文本框和一个添加按钮：
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div id="container">
<div id="line-item">
<asp:TextBox ID="txtLineNumber" runat="server"></asp:TextBox>
<asp:TextBox ID="txtQty" runat="server"></asp:TextBox>
<asp:TextBox ID="txtItemCode" runat="server"></asp:TextBox>
<asp:ImageButton ID="imgBtnAddNewLineItem" ImageUrl="~/images/add_button.jpg"
runat="server" />
</div>
</div>
</form>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2
/jquery.min.js">
</script>
<script src="js/invoice.js" type="text/javascript"></script>
</body>
</html>
When the user clicks the add button, I want to create another div with the line-item id and put it on the next line. I created a js file, but I am not sure how to do it?
当用户单击添加按钮时，我想用 line-item id 创建另一个 div 并将其放在下一行。我创建了一个 js 文件，但我不知道该怎么做？
Here is what I have so far:
这是我到目前为止所拥有的：
var itemCount = 0;
var itemCount = 0;
function getLineItem(number) {
var div = document.createElement('div');
$(div).attr("id", "lineitem" + number);
var t1 = getTextbox("txt" + number.toString() + "1");
var t2 = getTextbox("txt" + number.toString() + "2");
var t3 = getTextbox("txt" + number.toString() + "3");
$(div).append(t1);
$(div).append(t2);
$(div).append(t3);
return $(div);
}
function getTextbox(id) {
var textbox = document.createElement('input');
$(textbox).attr("id", id);
return $(textbox);
}
var lineItemCount = 0;
$('#imgBtnAddNewLineItem').click(function() {
lineItemCount++;
$('#line-item').clone().attr('id',getLineItem(lineItemCount)).appendTo('#container');
});
});
回答by Ropstah
$(document).ready(function() {
$('#imgBtnAddNewLineItem').click(function() {
$('#container').append('<div></div>');
});
});
Update 2
更新 2
Create a normal button like so:
创建一个普通按钮，如下所示：
<input type="button" id="imgBtnAddNewLineItem" value="Add lineitem" />
Update** This is also updated with comments etc.. **
更新** 这也更新了评论等。**
//Count the lineItems to make sure they are unique
var lineItemCount = 0;
//On document ready
$(document).ready(function() {
//On button click
$('#imgBtnAddNewLineItem').click(function(e) {
/*
ADD THE FOLLOWING LINE TO PREVENT THE POSTBACK
P.S. - Make sure you pass -e- to this function...
*/
e.preventDefault();
//Increase the lineitemcount
lineItemCount++;
//Add a new lineitem to the container, pass the lineItemCount to make sure getLineItem() can generate a unique lineItem with unique Textbox ids
$(container).append(getLineItem(lineItemCount));
});
});
//Create a new DIV with Textboxes
function getLineItem(number) {
var div = document.createElement('div');
//Give the div a unique id
div.setAttribute('id','lineitem_' + number);
//pass unique values to the getTextbox() function
var t1 = getTextbox('txt_' + number + '_1');
var t2 = getTextbox('txt_' + number + '_2');
var t3 = getTextbox('txt_' + number + '_3');
div.appendChild(t1);
div.appendChild(t2);
div.appendChild(t3);
return div;
}
//Create a textbox, make sure the id passed to this function is unique...
function getTextbox(id) {
var textbox = document.createElement('input');
textbox.setAttribute('id',id);
textbox.setAttribute('name',id);
return textbox;
}
回答by cletus
Try something like this:
尝试这样的事情：
$(document).ready(function() {
$('#imgBtnAddNewLineItem').click(function() {
var container = $("#container");
var line = $('#line-item').clone().attr("id", "line-item-2")
var lineCount = container.children().length + 1;
line.attr("id", line.attr("id") + "-" + lineCount);
line.find(":text").each(function() {
// IDs need to be unique
$(this).attr("id", $(this).attr("id") + "-" + lineCount);
$(this).attr("name", $(this).attr("name") + "-" + lineCount);
// clear the value since we're cloning a line that may have values in it
$(this).val("");
});
container.append(line);
});
});
Note:you need to change the id.
注意：您需要更改ID。
