I want to use AJAX to get information. If succeeds, I want to append the data into a table. Also, in each tr
, I add a button, and I want to trigger an event if I click the button. Thus, I just append a button with an onclick
function into the table. While, the onclick
function does not work. Does anyone know why? and how I can reach my goal?
Here is the code:
$.ajax({
url: 'https://api.instagram.com/v1/tags/'+tag+'/media/recent',
type: "GET",
dataType: "jsonp",
cache: false,
data:{
access_token: access_token,
count: count
},
success: function(data){
for(var x in data.data){
var html="";
tdHtml +="<tr><td>"+"<a href='"+data.data[x].link+"'><img src='"+data.data[x].images.thumbnail.url+"'></img></a>"+"</td>"+
"<td class='text-center'>"+data.data[x].caption.from.username+"</td>"+
"<td class='text-center'>"+data.data[x].likes.count+"</td>"+
"<td>"+create_time+"</td>"+
"<td>"+tags+"</td>"+
"<td>"+"<button id='addUsers' class='btn btn-primary btn-xs' onclick='addUsers()'>Add Users to a Group</button>"+"</td></tr>";
}
}
});
EDIT: Actually, the onclick
function is like this:
"<td>"+"<button id='addUsers' class='btn btn-primary btn-xs' onclick='addUsers('"+data.data[x].caption.from.username+"')'>Add Users to a Group</button>"+"</td></tr>";)'>Add Users to a Group</button>"+"</td></tr>";
Once I click the button, I can do something with the data's username I get via AJAX. However, even if I write simply, it cannot work. For example:
function addUsers(name){
console.log(name);
}
The name cannot be consoled. There is an undefined error, or other error happened.
So, the goal for me is to get response from developer(done), append it to a table in html(done), and click a button(which was append formerly) to do more things with the appended information. Here, I want to add the name into a certain list.
我认为按钮导致回发,因此再次重新加载页面尝试使用此按钮代替按钮
<input type='button' id='addUsers' class='btn btn-primary btn-xs' onclick='addUsers()' value='Add Users to a Group' />
Let me describe another way to do this and avoid duplicated event attributes:
Invent a class. For instance, let's call it simply addUsersButton
.
Add this class to your button while dynamically creating it:
tdHtml += /* ... other code here */ + "<button class='btn btn-primary btn-xs addUsersButton'>Add Users to a Group</button>";
Note that there is no onclick
attribute.
Now, using event delegation
, define the following handler:
$(document).on('click', 'addUsersButton', function() { var username = $(this).parent().find('td:eq(1)').text(); addUsers(username); });
Now, all of your addUsersButtons
will trigger this event whether they are dynamically generated or not.
$(this).parent().find('td:eq(1)').text()
will work because you store data.data[x].caption.from.username
in the second cell of the current row. However, it is not a best idea to use this approach. You can declare some kind of data-username
attribute and access it using $(selector).data('username')
.
You have messed up your quotes:
"<td>"+"<button id='addUsers' class='btn btn-primary btn-xs' " +
"onclick='addUsers(\""+
data.data[x].caption.from.username+
"\")'>Add Users to a Group</button>"+
"</td></tr>";
Note \\"
wrapping the parameter for addUsers
.
I suggest you use event delegation, and here is the sample:
html:
<button id="addContentBtn"> add content to table</button>
<table id="testTbl"></table>
js
$(document).ready(function() {
("#addContentBtn").click(function(){
var str="<tr><td>1</td><td><button>button</button></td></tr>" +
"<tr><td>2</td><td><button>button</button></td></tr>" ;
$(str).appendTo("#testTbl");
})
//this is event delegation
$("#testTbl").on("click","button",function(){
alert("clicked");
})
});
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