Question

我通过使用jsp检索数据库来对文本区域进行描述，如下所示;

Syscall param write(buf) points to uninitialised byte(s)

所以我想在没有滚动条的页面中显示textarea的全部内容，我该怎么办？

Answer 1

您可以参考以下链接
http://jsfiddle.net/TDAcr/

<head>
<title>autoresizing textarea</title>
<style type="text/css">
textarea {
border: 0 none white;
overflow-y: auto;
padding: 0;
outline: none;
background-color: #D0D0D0;
resize: none;
}
</style>
<script type="text/javascript">
var observe;
if (window.attachEvent) {
    observe = function (element, event, handler) {
        element.attachEvent('on'+event, handler);
    };
}
else {
    observe = function (element, event, handler) {
        element.addEventListener(event, handler, false);
    };
}
function init (maxH) {
        var text = document.getElementById('text');
    var maxHeight=maxH;
    var oldHeight=  text.scrollHeight;
    var newHeight;
    function resize () {

    text.style.height = 'auto';
    newHeight= text.scrollHeight;
    if(newHeight>oldHeight && newHeight>maxHeight  )
    {
        text.style.height=oldHeight+'px';

    }
    else{
        text.style.height = newHeight+'px';
        oldHeight=  text.scrollHeight;
    }

    }
    /* 0-timeout to get the already changed text */
    function delayedResize () {
        window.setTimeout(resize, 0);
    }
    observe(text, 'change',  resize);
    observe(text, 'cut',     delayedResize);
    observe(text, 'paste',   delayedResize);
    observe(text, 'drop',    delayedResize);
    observe(text, 'keydown', delayedResize);

    text.focus();
    text.select();
    resize();
}
</script>
</head>
<body onload="init(200);">
<textarea rows="1" style="height:1em;" id="text"></textarea>
</body>
</html>

我想让我的整个textarea内容可见

1 个答案: