Viewstate mac failed error in asp.net
How to resolve View state mac failed error while posting data to server.Please provide a solution.
some times it works fine but other is giving the error
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Category: ASP.NET
Please provide a solution.
some times it works fine but other is giving the error
#768298
Hi,
There are few things you need to validate from your side.
#1 Check in the Web.Config file whether the Viewstate is in false.
#2 if the above point is fine, then now check the machine config in the same file. It should have Decryption key
Kindly let us know if still issue exists after the correcting above points.
Thanks,
Mani
There are few things you need to validate from your side.
#1 Check in the Web.Config file whether the Viewstate is in false.
<system.web>
<pages enableViewStateMac="False" />
</system.web>
#2 if the above point is fine, then now check the machine config in the same file. It should have Decryption key
<system.web>
<machineKey
validationKey="" decryptionKey="" validation="SHA1? decryption="AES" />
</system.web>
Kindly let us know if still issue exists after the correcting above points.
Thanks,
Mani
#768300
You need to check both options
[1] Either Disable ViewStateMac equal to false. For this issue
[2] Configure MachineKey in Web.config
You can resolve View state mac failed error issue with add given code snippet in your web.config file under <system.web>
[1] Either Disable ViewStateMac equal to false. For this issue
<system.web>
<pages enableViewStateMac="False" /></system.web>
[2] Configure MachineKey in Web.config
You can resolve View state mac failed error issue with add given code snippet in your web.config file under <system.web>
<machineKey validationKey="AutoGenerate,IsolateApps" decryptionKey="AutoGenerate,IsolateApps" validation="SHA1" decryption="Auto>
#768332
Do you have many controls on asp.net ? this problem occur when there are number of controls exist on single aspx page it is unable to handle the issue. So 'Invalid view state' exception thrown by system
To resolve this we need to put following tag in web.config
Thanks
Koolprasd2003
Editor, DotNetSpider MVM
Microsoft MVP 2014 [ASP.NET/IIS]
To resolve this we need to put following tag in web.config
<system.web>
<pages enableViewStateMac="False" />
</system.web>
Thanks
Koolprasd2003
Editor, DotNetSpider MVM
Microsoft MVP 2014 [ASP.NET/IIS]
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