InvalidOperationException Nullable must be set to

Question

I use asp.net 4.0 and the sql server, when I am in the application only a few times, I see this error, and if I click on some thing that it resolves, someone can suggest me how to overcome this.

'System.InvalidOperationException: Nullable must be a value. at System.ThrowHelper.ThrowInvalidOperationException (Resource ExceptionResource)

Answer 1

You are probably trying to access the value of a null object, which is null.

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