1. 下载ckeditor放到网站目录下。地址：http://ckeditor.com/
引用js
<script language="javascript" type="text/javascript" src='<%=ResolveUrl("~/ckeditor/ckeditor.js")%>'></script>
3.添加一个编辑框
<asp:TextBox ID="mckeditor" runat="server" TextMode="MultiLine"></asp:TextBox>
4.在下面添加如下代码
复制代码 代码如下:
<script type="text/javascript">
//<![CDATA[
CKEDITOR.replace( '<%=mckeditor.ClientID %>',// mckeditor.ClientID为TextBox mckeditor生成的对应客户端看到的id
{
skin : 'office2003',//设置皮肤
enterMode : Number( 2),//设置enter键的输入1.<p>2为<br/>3为<div>
shiftEnterMode : Number( 1), // 设置shiftenter的输入
});
//]]>
</script>

像上面这样就可以完成基本的功能了，但是有的时候我们要上传文件，cfeditor的文件功能是通过插件实现的，下面介绍文件插件的CKFinder的配置
1. 到http://www.ckfinder.com/下载插件（主意选择asp.net版的），放到网站目录下
2. 在之前的ckeditor配置信息后面添加如下代码
复制代码 代码如下:
filebrowserBrowseUrl:'<%=ResolveUrl("~/ckfinder/ckfinder.html")%>',
filebrowserImageBrowseUrl:'<%=ResolveUrl("~/ckfinder/ckfinder.html?Type=Images")%>',
filebrowserFlashBrowseUrl:'<%=ResolveUrl("~/ckfinder/ckfinder.html?Type=Flash")%>',
filebrowserUploadUrl:'<%=ResolveUrl("~/ckfinder/core/connector/aspx/connector.aspx?command=QuickUpload&type=Files")%>',
filebrowserImageUploadUrl:'<%=ResolveUrl("~/ckfinder/core/connector/aspx/connector.aspx?command=QuickUpload&type=Images")%>',
filebrowserFlashUploadUrl:'<%=ResolveUrl("~/ckfinder/core/connector/aspx/connector.aspx?command=QuickUpload&type=Flash")%>'

3. 修改config.ascx文件中的BaseUrl = "/uploads/"（文件上传目录） 和CheckAuthentication()上传身份验证。
4. 排除示例文件夹中的fckeditor相关的文件，或者直接删除。（引用了fckeditor相关的命名空间）
有fckeditor.aspx popup.aspx popups.aspx.三个文件
之后应该使用就基本没问题了，但是如果项目中有几个地方都用到了编辑器，就要每个地方都写一段配置信息岂不是很麻烦，所以做了个简单的控件，代码如下：ascx文件
复制代码 代码如下:
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="mpckeditor.ascx.cs" Inherits="mpckeditor" %>
<script language="javascript" type="text/javascript" src='<%=ResolveUrl("~/ckeditor/ckeditor.js")%>'></script>
<asp:TextBox ID="mckeditor" runat="server" TextMode="MultiLine"></asp:TextBox>
<script type="text/javascript">
//<![CDATA[
CKEDITOR.replace( '<%=mckeditor.ClientID %>',
{
skin : 'office2003',
enterMode : Number( 2),
shiftEnterMode : Number( 1),
filebrowserBrowseUrl:'<%=ResolveUrl("~/ckfinder/ckfinder.html")%>',
filebrowserImageBrowseUrl:'<%=ResolveUrl("~/ckfinder/ckfinder.html?Type=Images")%>',
filebrowserFlashBrowseUrl:'<%=ResolveUrl("~/ckfinder/ckfinder.html?Type=Flash")%>',
filebrowserUploadUrl:'<%=ResolveUrl("~/ckfinder/core/connector/aspx/connector.aspx?command=QuickUpload&type=Files")%>',
filebrowserImageUploadUrl:'<%=ResolveUrl("~/ckfinder/core/connector/aspx/connector.aspx?command=QuickUpload&type=Images")%>',
filebrowserFlashUploadUrl:'<%=ResolveUrl("~/ckfinder/core/connector/aspx/connector.aspx?command=QuickUpload&type=Flash")%>'
});
//]]>
</script>

Cs文件：
复制代码 代码如下:
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class mpckeditor : System.Web.UI.UserControl
{
public string value
{
set { mckeditor.Text = value; }
get { return mckeditor.Text; }
}
protected void Page_Load(object sender, EventArgs e)
{
}

使用的地方只要把控件拖过来，后台代码页很简单Mpckeditor1.value就可以给它赋值或获取值
复制代码 代码如下:
<uc1:mpckeditor id="Mpckeditor1" runat="server" value="疯子来测试"> </uc1:mpckeditor>
protected void Button1_Click(object sender, EventArgs e)
{
Response.Write("<script language='javascript'>alert('" + HttpUtility.HtmlEncode(Mpckeditor1.value) + ";')</script>");
}

Ok