在HTML中隐藏复选框 [英] Hiding a Check Box in HTML

问题描述

我有以下两个复选框:

<label for="cell">3. Do you currently have a cell phone? (Y/N)</label>
<input type="checkbox" name="cell" name="cell" id="cell" data-on="Yes" data-off="No" />

<label for="blackBerry">4.If YES, is the cell phone a BlackBerry? (Y/N)</label>
<input type="checkbox" name="blackBerry" name="blackBerry" id= "blackBerry" data-on="Yes" data-off="No" />

仅当第一个问题选择为是"时，如何才能在页面上显示第二个问题?

How can I get the second question to display on the page, ONLY when the first one is selected as Yes?

谢谢.

推荐答案

您可以使用javascript

You can do this using javascript

JavaScript

​var elem = ​document.getElementById('cell');

​elem.addEventListener('click', function() {
      var divElem = document.getElementById('divPhone'); 
    if( this.checked){
        divElem.style.display = 'block'  ; 
    }
    else{
        divElem.style.display = 'none'  ;
    }
});

HTML

   <label for="cell">3. Do you currently have a cell phone? (Y/N)</label>
    <input type="checkbox" name="cell" name="cell"
           id="cell" data-on="Yes" data-off="No" />

    <div id="divPhone" class="hidden">
      <label for="blackBerry">4.If YES, is the cell phone a BlackBerry?
                                                          (Y/N)</label>
      <input type="checkbox" name="blackBerry" name="blackBerry" 
            id= "blackBerry" data-on="Yes" data-off="No" />
    </div>

​.hidden 
{
    display: none;
}​

检查小提琴

Check Fiddle

使用jQuery仍然更加简单.

​It is still more simple using jQuery..

​$('#cell').on('click', function() {
    if(this.checked){
       $('#divPhone').removeClass('hidden');
    }
    else{
       $('#divPhone').addClass('hidden');
    }        
});​

jQuery小提琴

jQuery Fiddle

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