下面是解决方法:
<script language="javascript" type="text/javascript">
var oEditer;
function CustomValidate(source, arguments)
{
var value = oEditer.GetXHTML(true);
if(value=="")
{
arguments.IsValid = false;
}
else
{
arguments.IsValid = true;
}
}
function FCKeditor_OnComplete( editorInstance )
{
oEditer = editorInstance;
}
</script>
把上面的脚本添加至页面内,然后选用CustomValidator验证控件,设置ClientValidationFunction="CustomValidate",并设置ValidateEmptyText属性为True,还有记得设置ControlToValidate啊。
还有:http://www.cnblogs.com/jillzhang/archive/2006/09/30/518838.html