Object reference not set to an instance of an object.

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Object reference not set to an instance of an object.

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.NullReferenceException: Object reference not set to an instance of an object.

Source Error:

Line 22: ENTUserAccount userAccount = db.ENTUserAccounts.SingleOrDefault(ua => ua.WindowsAccountName == @"VARALLO1\VaralloMadison");
Line 23:
Line 24: ViewState["ENTUserAccountId"] = userAccount.ENTUserAccountId;
Line 25: ViewState["InsertENTUserAccountId"] = userAccount.InsertENTUserAccountId;
Line 26: ViewState["InsertDate"] = userAccount.InsertDate;

Posted 26-Sep-13 0:23am

ajays3356

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Er Daljeet Singh 26-Sep-13 6:25am

Will you please post the code where you are getting error.

[no name] 26-Sep-13 6:30am

So debug your code, find out which object that you are trying to use that is null, make it not null.

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OriginalGriff · Answer 1 · 2013-09-26T00:36:00

Solution 1

The most obvious reason is that SingleOrDefault returns null if it doesn't find any matching records - so you need to check that userAccount is not null before you use it.

Posted 26-Sep-13 0:36am

OriginalGriff