[英]How to fill in a text field with drop down selection
I have a drop down with different strings, I want a text box to be filled in with the string of the drop down selected. 我有一个不同字符串的下拉列表,我希望用所选下拉列表的字符串填充文本框。
I am writing this in html 我用html写这个
<td align="right">
<select name="xyz" size="1">
<option value=""></option>
<?php foreach($comments as $comment): ?>
<?if($comment->x!= 0):?>
<option value="<?=$comment->x;?>"<?=($comment->x == $postData["xyz"] ? 'selected="selected"':"")?>>
<?=$comment->y;?>
</option>
<?endif;?>
<?php endforeach; ?>
</select>
<textarea name="xz" cols="36" rows="3"><?=$postData["xz"];?></textarea>
</td>
Something like this jsfiddle demo ? 像这个jsfiddle演示的东西?
HTML: HTML:
<textarea id="mytext"></textarea>
<select id="dropdown">
<option value="">None</option>
<option value="text1">text1</option>
<option value="text2">text2</option>
<option value="text3">text3</option>
<option value="text4">text4</option>
</select>
JavaScript: JavaScript的:
<script type="text/javascript">
var mytextbox = document.getElementById('mytext');
var mydropdown = document.getElementById('dropdown');
mydropdown.onchange = function(){
mytextbox.value = mytextbox.value + this.value; //to appened
//mytextbox.innerHTML = this.value;
}
</script>
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.