在Asp.net中，如果给CKeditor加了RequiredField Validator 验证控件，在提交表单时，可能要点两次，点第一次时会出现验证失败，点第二次就可以提交。原因是，点第一次时CKeditor中的内容还未负给Textarea控件。解决方法：
<script src="_scripts/jquery-1.3.2.min.js" type="text/javascript"></script>
<script type="text/javascript" src="ckeditor/ckeditor.js"></script>
<script type="text/javascript" src="ckeditor/adapters/jquery.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function() {
$('#TextBox1').ckeditor();
});
function UpdateContent() {
var ckeditorinstance = $('#TextBox1').ckeditorGet();
ckeditorinstance.updateElement();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="TextBox1" TextMode="MultiLine" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
ControlToValidate="TextBox1" ErrorMessage="No content in CKEditor!"></asp:RequiredFieldValidator>
</div>
<asp:Button ID="btnSave" OnClientClick="javascript:UpdateContent()" runat="server" Text="Save" onclick="btnSave_Click" />