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试图单击C＃网站点击按钮无效例外
这里的会场的按钮时，我得到空的例外是代码：
web浏览器韦伯=新的web浏览器（）;
webb.Navigate（”？http://10.0.3.190:8880/guest/s/default/ ID = 9C：广告：97：CB：9D：15 & AP = DC：9F：分贝：B0：AB：64 &吨= 1456946961" ）;
HtmlElement button = webb.Document.GetElementById("connect");
if (button == null)
{
MessageBox.Show(" id not found");
}
else if (button != null)
{
MessageBox.Show(" id found");
button.InvokeMember("click");
}
}
这是网站的完整的HTML：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" dir="ltr">
<head>
<title>Action Required - Guest Access</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<link rel="stylesheet" type="text/css" href="http://10.0.3.190:8880/guest/s/default/reset-min.css" />
<link rel="stylesheet" type="text/css" href="http://10.0.3.190:8880/guest/s/default/styles.css" />
<script type="text/javascript" src="http://10.0.3.190:8880/guest/s/default/js/jquery.min.js"></script>
<script type="text/javascript" src="http://10.0.3.190:8880/guest/s/default/js/guest.js"></script>
</head>
<body class="login-page">
<!-- see README.txt for HTML customization instructions -->
<div class="page-content" style="padding-top:100px;">
<div class="login-content content-box">
</div>
<div class="login-content content-box">
<form name="input" method="post" action="login">
<div class="tou-box">
<h2>Terms of Use</h2>
<div class="tou-wrapper" id="tou">
<div class="tou">
<p>Terms of Use</p>
<p>By accessing the wireless network, you acknowledge that you're of legal age, you have read and understood and agree to be bound by this agreement</p>
<ul>
<li>The wireless network service is provided by the property owners and is completely at their discretion. Your access to the network may be blocked, suspended, or terminated at any time for any reason.</li>
<li>You agree not to use the wireless network for any purpose that is unlawful and take full responsibility of your acts.</li>
<li>The wireless network is provided "as is" without warranties of any kind, either expressed or implied. </li>
</ul>
</div>
</div>
<fieldset class="accept-tou">
<input id="accept-tou" type="checkbox" checked="checked" name="accept-tou" value="yes" />
<label class="normal" >I accept the <a href="javascript:void(0)" id="show-tou">Terms of Use</a></label>
</fieldset>
<div class="form-controls">
<!-- submit (only for no authentication) -->
<input name="connect" type="submit" value="Connect" id="connect" class="button requires-tou" />
</div>
</div>
</form>
</div>
</div>
<script type="text/javascript">
jQuery(document).ready(function() {
jQuery('input').keypress(function(e) {
var code = (e.keyCode ? e.keyCode : e.which);
if ((code==13) || (code==10)) {
jQuery(this).blur();
return false;
}
});
});
$(function() {
$('#tou').hide();
$('#show-tou').click(function() {
$('#tou').show();
});
$('#accept-tou').click(function() {
if (!$('#accept-tou').checked()) {
$('input.requires-tou').disable();
}
else {
$('input.requires-tou').enable();
}
})
});
</script>
</body>
</html>
你有这个Simdi任何运气？ – wazdev