输入值未在jQuery中获取？
[英]Input value not getting picked up in jQuery?
问题描述
header.php 
header.php
<div id="rename-content" class="hide">
<form class="popover-form">
<div class="popover-form-content">
<div class="material-input-group stretched">
<input type="text" placehold="Title" id="new-row-name">
</div>
</div>
<div class="popover-footer pull-right">
<button type="button" class="btn btn-default flat close-popover">Cancel</button>
<button type="button" class="btn btn-default flat rename-row">Rename</button>
</div>
</form>
</div>
footer.php In $(document).ready() footer.php在$(document).ready()
$('.edit-row-lbl').popover({
title: "Rename Row",
content: function(){
return $("#rename-content").html();
},
html: true,
placement: 'bottom',
trigger: 'manual'
});
$('.edit-col-lbl, .edit-row-lbl').click(function()
{
if ($(this).hasClass('edit-col-lbl') )
{
to_rename = 'col';
col_id_to_rename = $(this).data('col-id');
$('.edit-col-lbl').popover('show');
}
else
{
to_rename = 'row';
row_id_to_rename = $(this).data('row-id');
$('.edit-row-lbl').popover('show');
}
$('.edit-col-lbl, .edit-row-lbl').not(this).popover('hide');
});
$('body').off().on('click', '.rename-row', function()
{
var new_row_name = $('#new-row-name').val();
console.log('Rename row clicked!');
console.log('New row name: ' + new_row_name);
console.log('Row id to rename: ' + row_id_to_rename);
$.ajax({
type : 'POST',
url : base_url + 'row/renameRow',
data : {
'row_id' : row_id_to_rename,
'row_name' : new_row_name
},
success: function(message)
{
if (message == 'success')
{
console.log('Renaming successful');
window.location = window.location;
}
else
{
console.log('Error >> ' + message);
}
},
error: function(xhr, error)
{
console.log(xhr.responseText);
console.log(error);
}
});
});
In the console, the messages show up except that the row name is blank. 在控制台中，显示消息，但行名称为空白。 I'm not getting any errors, just that the input is not getting picked up. 我没有任何错误，只是输入没有被拾取。 When I try to print the value length it comes up as 1. 当我尝试打印值长度时，它显示为1。
3 个解决方案
解决方案1
1 已采纳 2017-03-01 02:58:12
I just had to do this: 我只需要这样做：
new_row_name = $('.popover #new-row-name').val();
bind it to the class. 将其绑定到类。 Now it picks up the value. 现在，它获取了价值。 Thanks for the help! 谢谢您的帮助！
解决方案2
0 2017-03-01 02:05:08
It's because you have variable 'row_id_to_rename' that is unknown inside your $('body') on click function. 这是因为您的$（'body'）点击函数中包含未知的变量'row_id_to_rename'。
You have to declare that variable at the top, outside of those functions: 您必须在这些函数之外的顶部声明该变量：
$(document).ready(function() {
var row_id_to_rename; // <- put here!
$('.edit-row-lbl').popover({
...
});
$('.edit-col-lbl, .edit-row-lbl').click(function() {
...
});
$('body').off().on('click', '.rename-row', function() {
...
});
});
解决方案3
0 2017-03-01 02:11:24
The input is being picked up is just that the value is the empty string. 输入被拾取只是该值是空字符串。
<input type="text" placehold="Title" id="new-row-name">
If it would be not found in your console you would have seen 'New row name: undefined 如果在您的控制台中找不到它，您将看到“新行名称：未定义
<html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script> <script> $(document).ready(function(){ $('.edit-col-lbl, .edit-row-lbl').click(function() { if ($(this).hasClass('edit-col-lbl') ) { to_rename = 'col'; col_id_to_rename = $(this).data('col-id'); $('.edit-col-lbl').popover('show'); } else { to_rename = 'row'; row_id_to_rename = $(this).data('row-id'); $('.edit-row-lbl').popover('show'); } $('.edit-col-lbl, .edit-row-lbl').not(this).popover('hide'); }); $('body').off().on('click', '.rename-row', function() { var new_row_name = $('#new-row-name').val(); console.log('Rename row clicked!'); console.log('New row name: ' + new_row_name); }); }); </script> </head> <body> <div id="rename-content" class="hide"> <form class="popover-form"> <div class="popover-form-content"> <div class="material-input-group stretched"> <input type="text" placehold="Title" id="new-row-name"> </div> </div> <div class="popover-footer pull-right"> <button type="button" class="btn btn-default flat close-popover">Cancel</button> <button type="button" class="btn btn-default flat rename-row">Rename</button> </div> </form> </div> </body> </html>
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