<form id="form1" runat="server">
<div>
<div>
<asp:TextBox ID="TextBox1" TextMode="MultiLine" runat="server"> </asp:TextBox>
</div>
<br />
<asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />
</div>
</form>

<script src="fckeditor/fckeditor.js" type="text/javascript"></script>
<script type="text/javascript">
window.onload = function() {
var oFCKeditor = new FCKeditor('<%= TextBox1.ClientID %>');
oFCKeditor.BasePath = 'fckeditor/'
oFCKeditor.Config.ImageUploadURL = "/admin/auploader.aspx";
oFCKeditor.ReplaceTextarea();
}
</script>

protected void Page_Load(object sender, EventArgs e)
{
if (Request.Files.Count > 0)
{
HttpPostedFile file = Request.Files[0];
string path = "/Article/" + System.DateTime.Now.ToString("yyyyMMdd") + "/";
string serverPath = Server.MapPath(path);
string fileName = Guid.NewGuid() + file.FileName.Substring(file.FileName.LastIndexOf("."));
if (!System.IO.Directory.Exists(serverPath))
System.IO.Directory.CreateDirectory(serverPath);
file.SaveAs(serverPath + fileName);
SendFileUploadResponse(0, path + fileName, fileName, "上傳成功！");
}
else
{
SendFileUploadResponse(1, "", "", "上傳失敗！");
}
}

public void SendFileUploadResponse(int isSucceed, string fileUrl, string fileName, string customMsg)
{
System.Web.HttpContext.Current.Response.Clear();
System.Web.HttpContext.Current.Response.Write("<script type='text/javascript'>");
System.Web.HttpContext.Current.Response.Write(@"(function(){var d=document.domain;while (true){try{var A=window.top.opener.document.domain;break;}catch(e) {};d=d.replace(/.*?(?:/.|$)/,'');if (d.length==0) break;try{document.domain=d;}catch (e){break;}}})();");
System.Web.HttpContext.Current.Response.Write("window.parent.OnUploadCompleted(" + isSucceed.ToString().ToLower() + ", '" + fileUrl + "', '" + fileName + "', '" + customMsg + "');");
System.Web.HttpContext.Current.Response.Write("</script>");
System.Web.HttpContext.Current.Response.End();
}

function OnUploadCompleted( errorNumber, fileUrl, fileName, customMsg )
{
// Remove animation
window.parent.Throbber.Hide() ;
GetE( 'divUpload' ).style.display = '' ;
switch ( errorNumber )
{
case 0 : // No errors
alert( 'Your file has been successfully uploaded' ) ;
break ;
case 1 : // Custom error
alert( customMsg ) ;
return ;
case 101 : // Custom warning
alert( customMsg ) ;
break ;
case 201 :
alert( 'A file with the same name is already available. The uploaded file has been renamed to "' + fileName + '"' ) ;
break ;
case 202 :
alert( 'Invalid file type' ) ;
return ;
case 203 :
alert( "Security error. You probably don't have enough permissions to upload. Please check your server." ) ;
return ;
case 500 :
alert( 'The connector is disabled' ) ;
break ;
default :
alert( 'Error on file upload. Error number: ' + errorNumber ) ;
return ;
}
sActualBrowser = '' ;
SetUrl( fileUrl ) ;
GetE('frmUpload').reset() ;
}