Sharepoint problem saving a file over an existing file in a document library

Question

I have an existing document in a document library and I'm trying to overwrite that file in code using code like this:

byte[] data = ...
SPListItem li = ...
li.File.SaveBinary(data);

When I run this code I get:

Microsoft.SharePoint.SPException: The security validation for this page is invalid. Click Back in your Web browser, refresh the page, and try your operation again. ---> System.Runtime.InteropServices.COMException (0x8102006D): The security validation for this page is invalid. Click Back in your Web browser, refresh the page, and try your operation again.
    at Microsoft.SharePoint.Library.SPRequestInternalClass.PutFile(String bstrUrl, String bstrWebRelativeUrl, Object varFile, PutFileOpt PutFileOpt, String bstrCreatedBy, String bstrModifiedBy, Int32 iCreatedByID, Int32 iModifiedByID, Object varTimeCreated, Object varTimeLastModified, Object varProperties, String bstrCheckinComment, UInt32& pdwVirusCheckStatus, String& pVirusCheckMessage)
    at Microsoft.SharePoint.Library.SPRequest.PutFile(String bstrUrl, String bstrWebRelativeUrl, Object varFile, PutFileOpt PutFileOpt, String bstrCreatedBy, String bstrModifiedBy, Int32 iCreatedByID, Int32 iModifiedByID, Object varTimeCreated, Object varTimeLastModified, Object varProperties, String bstrCheckinComment, UInt32& pdwVirusCheckStatus, String& pVirusCheckMessage)
    --- End of inner exception stack trace ---
    at Microsoft.SharePoint.Library.SPRequest.PutFile(String bstrUrl, String bstrWebRelativeUrl, Object varFile, PutFileOpt PutFileOpt, String bstrCreatedBy, String bstrModifiedBy, Int32 iCreatedByID, Int32 iModifiedByID, Object varTimeCreated, Object varTimeLastModified, Object varProperties, String bstrCheckinComment, UInt32& pdwVirusCheckStatus, String& pVirusCheckMessage)
    at Microsoft.SharePoint.SPFile.SaveBinary(Byte[] file, String checkInComment, Boolean checkRequiredFields, Boolean bIsMigrate, Boolean bIsPublish, SPUser modifiedBy, DateTime timeLastModified, SPVirusCheckStatus& virusCheckStatus, String& virusCheckMessage)
    at Microsoft.SharePoint.SPFile.SaveBinary(Byte[] file, Boolean checkRequiredFields, Boolean bIsMigrate, Boolean bIsPublish, SPUser modifiedBy, DateTime timeLastModified)
    at Microsoft.SharePoint.SPFile.SaveBinary(Byte[] file, Boolean checkRequiredFields)
    at Microsoft.SharePoint.SPFile.SaveBinary(Byte[] file)
    at TestClass.UploadFile()

I'm running this code on a form hosted in the same site as sharepoint and the user that is running the code can upload the file manually just fine. Do I need to delete the file first? Check it out?

Answer 1

I figured it out. I was doing the call within a SPSecurity.RunWithElevatedPrivileges block which caused it to fail. I find that interesting since you would think running with elivated privileges would have more access not less.