当从组合中选择特定选项时自动隐藏文本框 [英] autohide text box when a particular option is selected from combo
本文介绍了当从组合中选择特定选项时自动隐藏文本框的处理方法,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
我有一个组合框,当选择第二或第三选项时显示一个文本框,但是当第一个选项被选中时如何隐藏该文本框?
<$ p $ ($ {
$ comboame:this.value
($'$ combo.jsp',{
$' },function(data){
if(data.isTrue){
$(#textbox)。empty()。append(< input type ='text'id ='text1' />); //显示一个空文本框
}
else {
//如何清除该文本框并隐藏它?
}
} );
});
html
< select id =comboname =comboname>
< option value =_>< / option> //当这个选项是
时,如何清除和隐藏文本框?
< option value =somevalue> somename< / option> //当选择此选项时,它
显示一个空文本框
< option value =somevalue1> ; somename1< / option>当这个选项被选中时,它也是
显示相同的空文本框
< / select>
//在下面的div中,正在显示文本框
< div id =textbox>
//当从上面的组合
< / div>中选择第二或第三选项时,显示文本框。
服务器端(combo.jsp)
JSONObject jsonObj = new JSONObject();
jsonObj.put(isTrue,true);
response.setContentType(application / json);
response.getWriter()。write(jsonObj.toString());
解决方案
您真的需要服务器端吗?这里没有例子:
$(#combo)。change(function(){
if(this 。); $ b $(#textbox)。empty()。append(< input type ='text'id ='text1'/>);
}
else {
$(#textbox)。hide();
}
});
另请参阅 isTrue >
>有条件的。
I have one combo box which displays a text box when 2nd or 3rd option is selected, but how to hide that text box when first option is selected?
$("#combo").change(function () {
$.getJSON('combo.jsp', {
comboname: this.value
}, function (data) {
if(data.isTrue){
$("#textbox").empty().append("<input type='text' id='text1'/>");// display an empty text box
}
else{
// how to clear that text box and hide it?
}
});
});
html
<select id="combo" name="comboname">
<option value="_"></option>// how to clear and hide the text box when this option is
selected?
<option value="somevalue">somename</option>// when this option is selected then it
displays an empty text box
<option value="somevalue1">somename1</option>when this option is selected then it also
displays the same empty text box
</select>
// in the following div, text box is being displayed
<div id="textbox">
// here text box is displayed when option 2nd or 3rd is selected from the above combo
</div>
server side (combo.jsp)
JSONObject jsonObj= new JSONObject();
jsonObj.put("isTrue","true");
response.setContentType("application/json");
response.getWriter().write(jsonObj.toString());
解决方案
Do you really need server side? Here an example without:
$("#combo").change(function () {
if (this.value != '_') {
$("#textbox").empty().append("<input type='text' id='text1'/>");
}
else {
$("#textbox").hide();
}
});
Also see this example.
But if really need server side, you have to set isTrue
conditionally.
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