In asp.net web application, we are using dynamic controls in asp Table and other static controls.while navigating between forms or postabcks, We
are facing an intermittent issue "Invalid Viewstate".
Error Message:Invalid viewstate.
Client IP: 27.251.48.180
Port: 8968
Referer: http://50.193.80.10/wfmtest/DailyErection.aspx
Path: /wfmtest/DailyErection.aspx
User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:39.0) Gecko/20100101 Firefox/39.0
ViewState:
/wEPDwULLTEwOTMwMDU5MDYPZBYCZg9kFgICAw9kFgQCAw8PFgIeBFRleHQFEkJhcmNsYXkgRGF2aWQgVHJveWRkAhEPZBYCAgMPZBYCZg9kFhICAQ8PFgIfAAUKMDctMjgtMjAxNWRkAg0PE
A8WBh4NRGF0YVRleHRGaWVsZAUHSm9iRGVzYx4ORGF0YVZhbHVlRmllbGQFA0pvYh4LXyFEYXRhQm91bmRnFgIeCG9uY2hhbmdlBQ9TaG93UHJvZ3Jlc3MoKTsQFbMBAA8wMS0wMDAgLSBvZm
ZpY2UnMTItMTY1IC0gTm9ydGggJiBQdWxhc2tpIFNlbmlvciBIb3VzaW5nITEyLTE4NCAtIFNhbmdhbW9uIFRlcnJhY2UgU3IgQXB0cx8xMy0xMjggLSBWZXRlcmFucyBOZXcgQmVnaW5uaW5
nFDEzLTEzNyAtIFBpbm5hY2xlIDE2HTEzLTE0MyAtIFRhcGVzdHJ5IEdsZW52aWV3IFBEJjEzLTE2MCAtIEFsZGkgLSBPYWsgQ3JlZWsgV0kgRXhwYW5zaW9uJTEzLTE2MSAtIFVuaXYgb2Yg
Q2hpY2FnbyAtIFNydmNzIEJsZGcaMTMtMTY5IC0gQ2xvdmVyaGlsbCBCYWtlcnkaMTMtMTcwIC0gSGFycGVyIENvbGxlZ2UgUEQmMTMtMTcxIC0gTEEgRml0bmVzcy81NTAxICYgNTYwMCBLZ
WR6aWUdMTMtMTcyIC0gU2FnZSBZTUNBIC0gQmxkZyBBZGQnMTMtMTc0IC0gVG95b3RhI...
Source:
StackTrace:
From the forums, we found few solutions which we changed in web.config file as shown below,
<system.web>
<compilation targetframework="4.0">
<httpruntime executiontimeout="420" maxrequestlength="53248" usefullyqualifiedredirecturl="false">
<authentication mode="Forms">
<forms timeout="600" />
<sessionstate mode="InProc" cookieless="false" timeout="560">
<customerrors mode="On" defaultredirect="errorPage.aspx">
<pages enableeventvalidation="false" enableviewstate="true" enableviewstatemac="false" maxpagestatefieldlength="-1">
viewStateEncryptionMode="Never" />
<machinekey>
validationKey='C912F05687CC92785747C70F9241272CE8014BD69F5A3BE7A3A333C4F50FBC83A0398590CC0693AC9D8BEDDEB1EC118A58F8C1FFE090B0D89A020DC75EB9B05E'
decryptionKey='14EFA8EA4BBC435752DE13AB1995AF4A95795F0ECEEFB808' validation='SHA1'/>
Even after this change, we are still finding "Invalid Viewstate" error.
This is of high importance and please anyone help in resolving this issue.
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