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我在html頁面中有兩種形式。我試圖啓用和禁用第一種形式的提交按鈕,當輸入值不是空的相同的形式。我正在使用jQuery來做到這一點,但它只是禁用提交按鈕,並沒有在文本輸入(鍵盤按下)響應。請對我的代碼來看看......jquery,我如何啓用多種形式之間的表單按鈕
HTML代碼:
<form role="form" method="post" name="music" id="musicPost">
<div class="form-group">
<label for="name">Artist Name</label>
<div class="input-group">
<div class="input-group-addon"><span class="glyphicon glyphicon-user"></span></div>
<input class="form-control" type="text" maxlength="25" id="name" name="txtname" placeholder="Enter artist name">
</div>
</div>
<div class="modal-footer" style="padding-left: 0px; padding-right: 0px;">
<button type="submit" id="register" class="btn btn-success pull-right" value="post-music">
<span class="glyphicon glyphicon-circle-arrow-right"></span>
<span class="text">Post</span>
</button>
</div>
</form>
<form role="form" method="post" name="music1" id="musicPost1">
<div class="form-group">
<label for="name">Artist Name</label>
<div class="input-group">
<div class="input-group-addon"><span class="glyphicon glyphicon-user"></span></div>
<input class="form-control" type="text" maxlength="25" id="name1" name="txtname1" placeholder="Enter artist name">
</div>
</div>
<div class="modal-footer" style="padding-left: 0px; padding-right: 0px;">
<button type="submit" id="register1" class="btn btn-success pull-right" value="post-music">
<span class="glyphicon glyphicon-circle-arrow-right"></span>
<span class="text">Post</span>
</button>
</div>
</form>
jQuery代碼:
jQuery("document").ready(function ($) {
var $input = $('input:text'),
$register = $('form#musicPost #register');
$register.attr('disabled', true);
$('form#musicPost').keyup(function() {
var trigger = false;
$input.each(function() {
if (!$(this).val()) {
trigger = true;
}
});
trigger ? $register.attr('disabled', true) : $register.removeAttr('disabled');
});
});