最近总提交文章的时候，总是出现这个错误：大家看一下100分相送！
Server   Error   in   '/ '   Application.
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Validation   of   viewstate   MAC   failed.   If   this   application   is   hosted   by   a   Web   Farm   or   cluster,   ensure   that   <machineKey>   configuration   specifies   the   same   validationKey   and   validation   algorithm.   AutoGenerate   cannot   be   used   in   a   cluster.  
Description:   An   unhandled   exception   occurred   during   the   execution   of   the   current   web   request.   Please   review   the   stack   trace   for   more   information   about   the   error   and   where   it   originated   in   the   code.  

Exception   Details:   System.Web.HttpException:   Validation   of   viewstate   MAC   failed.   If   this   application   is   hosted   by   a   Web   Farm   or   cluster,   ensure   that   <machineKey>   configuration   specifies   the   same   validationKey   and   validation   algorithm.   AutoGenerate   cannot   be   used   in   a   cluster.



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元旦
up
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提交的内容太多了，超过了web.config中定义的最大上传字节量。
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在Web.config里边添加 <pages enableEventValidation= "false " viewStateEncryptionMode = "Never " />
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up，元旦还有这么多人啊。。