选中复选框时启用按钮 [英] Enable button when checkboxes selected

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本文介绍了选中复选框时启用按钮的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有多个复选框和最初禁用的提交按钮。当选中一个框时,该按钮被启用,当取消选中时,该按钮被再次禁用。

如果选中了多个复选框,但取消选中了一个复选框,即使选中了其他复选框,该按钮也会被禁用。如何解决这个问题?

 < script type =text / javascript> 
$(function(){
$(。checkbox)。click(function(){
$(。delete)。attr(disabled,!this.checked );
});
});
< / script>

HTML

 < input type =checkboxname =msg []value =32class =checkbox/> 
< input type =checkboxname =msg []value =44class =checkbox/>
< input type =checkboxname =msg []value =26class =checkbox/>

< button type =submitclass =deletedisabled =disabled>删除< / button>


解决方案

  $( function(){
$(。checkbox)。click(function(){
$('。delete')。prop('disabled',$('input.checkbox:checked') .length == 0);
});
});

演示: http://jsfiddle.net/AlienWebguy/3U364/


I have multiple checkboxes and a submit button that is initially disabled. When checking a box the button is enabled and when unchecking, the button is disabled again.

If have multiple checkboxes selected but uncheck one, the button becomes disabled even though I have selected other checkboxes. How can I fix this issue?

<script type="text/javascript"> 
$(function() {
    $(".checkbox").click(function() {
      $(".delete").attr("disabled", !this.checked);
    });
});
</script>

HTML

<input type="checkbox" name="msg[]" value="32" class="checkbox" />
<input type="checkbox" name="msg[]" value="44" class="checkbox" />
<input type="checkbox" name="msg[]" value="26" class="checkbox" />

<button type="submit" class="delete" disabled="disabled">Delete</button>

解决方案

$(function() {
    $(".checkbox").click(function(){
        $('.delete').prop('disabled',$('input.checkbox:checked').length == 0);
    });
});

Demo: http://jsfiddle.net/AlienWebguy/3U364/

这篇关于选中复选框时启用按钮的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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