这是我的代码:
HTML:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="radio" name="option1" value="foo">
<input type="radio" name="option1" value="bar">
的JavaScript
<input type="checkbox" id="checkme"/>
<p class="label-text"><b>By checking this, you agree to our <a href="terms.html" onclick="window.open(this.href, 'mywin',
'left=20,top=20,width=500,height=500,toolbar=1,resizable=0'); return false;" style="color: red;">Terms & <br>Conditions</a> and <a href="privacy.html" onclick="window.open(this.href, 'mywin',
'left=20,top=20,width=500,height=500,toolbar=1,resizable=0'); return false;" style="color: red;">Privacy Policy</a></b></p>
<input class="formBtn" type="submit" id="submit" value="Submit" disabled="disabled" />
的jQuery
var checker = document.getElementById('checkme');
var sendbtn = document.getElementById('submit');
checker.onchange = function(){
if(this.checked){
sendbtn.disabled = false;
} else {
sendbtn.disabled = true;
};
一切都行不通。请帮忙。
还帮我在javascript中添加一个css类,以便在禁用时使按钮透明。非常感谢!
答案 0 :(得分:1)
您需要使用change
而不是click
并在disabled
输入中添加样式,您只需使用#submit[disabled]
$( "#checkme" ).on( "change", function() {
$('#submit').prop('disabled', !this.checked);
}).change(); // use this to run change event on load
&#13;
#submit{
transition-duration : 0.5s;
}
#submit[disabled]{
opacity : 0.5;
transition-duration : 0.5s;
}
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="checkbox" id="checkme"/>
<p class="label-text"><b>By checking this, you agree to our <a href="terms.html" onclick="window.open(this.href, 'mywin',
'left=20,top=20,width=500,height=500,toolbar=1,resizable=0'); return false;" style="color: red;">Terms & <br>Conditions</a> and <a href="privacy.html" onclick="window.open(this.href, 'mywin',
'left=20,top=20,width=500,height=500,toolbar=1,resizable=0'); return false;" style="color: red;">Privacy Policy</a></b></p>
<input class="formBtn" type="submit" id="submit" value="Submit"/>
&#13;
为了简化您的代码,您可以使用$('#submit').prop('disabled', !this.checked);
this.checked
在选中时返回true,在未选中时返回false,这样您就可以使用!
来反转它
注意:请确保包含jquery
要在禁用true / false时为输入添加效果,可以添加transition-duration : 0.5s;
答案 1 :(得分:0)
我只是用常规的javascript保持简单。我在复选框中添加了一个onclick函数,该复选框在选中复选框时启用提交 希望它有所帮助。
function checkA(){
if(document.getElementById('checkme').checked == true){
document.getElementById('submit').disabled = "";
} else {
document.getElementById('submit').disabled = "disabled";}}
<input onclick="checkA();" type="checkbox" id="checkme">
<p class="label-text"><b>By checking this, you agree to our <a href="terms.html" onclick="window.open(this.href, 'mywin',
'left=20,top=20,width=500,height=500,toolbar=1,resizable=0'); return false;" style="color: red;">Terms & <br>Conditions</a> and <a href="privacy.html" onclick="window.open(this.href, 'mywin',
'left=20,top=20,width=500,height=500,toolbar=1,resizable=0'); return false;" style="color: red;">Privacy Policy</a></b></p>
<input class="formBtn" type="submit" id="submit" value="Submit" disabled="disabled">