办法:页面的顶部page加 EnableViewState="False" EnableViewStateMac = "False" 来解决这个问题根据框架的提示如下： Server Error in '/' Application. -------------------------------------------------------------------------------- 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. Source Error: [No relevant source lines] Source File: h:/WINDOWS/Microsoft.NET/Framework/v2.0.50727/Temporary ASP.NET Files/root/df4db950/a034e6a/App_Web_o9fr0nmx.18.cs Line: 0 Stack Trace: [HttpException (0x80004005): Unable to validate data.] System.Web.Configuration.MachineKeySection.GetDecodedData(Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Int32& dataLength) +2546780 System.Web.UI.ObjectStateFormatter.Deserialize(String inputString) +214 [ViewStateException: Invalid viewstate. Client IP: 202.119.199.112 Port: 1242 User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727) ViewState: /wEPDwUJNTM4MjQxOTkxZBgBBR5fX0NvbnRyb2xzUmVxdWlyZVBvc3RCYWNrS2V5X18WAQUMSW1hZ2VCdXR0b24xjUihQtAeI0cDU56BxkYGL8w1G/4= Referer: http://download.cumt.edu.cn/Admin/login.aspx Path: /Admin/login.aspx] [HttpException (0x80004005): 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.]
