我有一个包含5个单选按钮的列表,最后一个单选按钮用于选择手动输入文本(“其他”选项)。我似乎无法使表单适用于所有5种可能性 - 它返回无线电值或写入值(当前只有写入的值而不是任何预设的无线电值)。无法让它适用于所有5种可能的回报。 这是用于选择文本或在未选择时清除它的javascript:
<script type= "text/javascript" >
function HandleRadioOtherBox(grp, txt)
{
var x, len = grp.length;
for (x =0; x<len; ++x)
{
if (grp[x].checked) break;
}
if (x < len && grp[x].value == txt.name)
{
txt.disabled = false;
txt.select();
txt.focus();
}
else
{
txt.value = "";
txt.disabled = true;
}
return true;
}
window.onload = function ()
{
var ele = document.forms[0].elements;
return HandleRadioOtherBox(ele['OPS'], ele['Country']);
}
</script>
这里是HTML单选按钮部分:
<tr valign="top">
<td class="style3">Country: </td>
<td class="copy">
<input type="radio" name="OPS" value="United States" checked="checked"
onclick="return HandleRadioOtherBox(OPS, Country)" /> United States
<input type="radio" name="OPS" value="Canada"
onclick="return HandleRadioOtherBox(OPS, Country)" /> Canada
<input type="radio" name="OPS" value="England"
onclick="return HandleRadioOtherBox(OPS, Country)" /> England
<input type="radio" name="OPS" value="Australia"
onclick="return HandleRadioOtherBox(OPS, Country)" /> Australia <br />
<input type="radio" name="OPS" value="Country"
onclick="return HandleRadioOtherBox(OPS, Country)" /> Other Country:
<input type='text' name="Country" id="Country" maxlength='80' />
</td>
</tr>
花了很多很多小时,水泥中没有多少孔(还有)。 :-) 救命啊!
答案 0 :(得分:1)
您可以为表单编写一个函数来检查两个事件:
check
blur
然后根据哪个单选按钮注册check
事件或文本输入是否注册了blur
事件,给出了相应的响应:
var radioButtons = document.querySelectorAll('input[type="radio"]');
var otherCountryRadio = document.querySelector('.other-country input[type="radio"]');
var otherCountryText = document.querySelector('.other-country input[type="text"]');
function returnValue() {
if (this === otherCountryRadio) {
otherCountryText.focus();
}
else {
if (this.value.match(/\w/)) {
console.log(this.value);
}
}
}
for (var i = 0; i < radioButtons.length; i++) {
radioButtons[i].addEventListener('change', returnValue, false);
}
otherCountryText.addEventListener('blur', returnValue, false);
&#13;
div {
margin: 12px;
}
.other-country input[type="text"] {
visibility: hidden;
}
.other-country input:checked + input[type="text"] {
visibility: visible;
}
&#13;
<form>
<div class="top-countries">
<label><input type="radio" name="OPS" value="United States" checked="checked" /> United States</label>
<label><input type="radio" name="OPS" value="Canada" /> Canada</label>
<label><input type="radio" name="OPS" value="England" /> England</label>
<label><input type="radio" name="OPS" value="Australia" /> Australia</label>
</div>
<div class="other-country">
<label>
<input type="radio" name="OPS" value="Other" /> Other Country
<input type="text" name="Country" />
</label>
</div>
</form>
&#13;