linq firstordefault value cannot be null

FirstOrDefault();. Here is output of above code. Hello World Run-time excep...

FirstOrDefault();. Here is output of above code. Hello World Run-time exception (line 11): Value cannot be null. Parameter name: source Linq namespace, so what the compiler translates this into is: var count = Enumerable.

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Somewhere inside the DbContext is a value that is IEnumerable and is querie...

Somewhere inside the DbContext is a value that is IEnumerable and is queried with Any() (or Where() or Select() or any other LINQ-method).

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I am running this LINQ to Entities query below, it crashes with error sayin...

I am running this LINQ to Entities query below, it crashes with error saying {"Value cannot be null.\r\nParameter name: outer"}.

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Add(new SelectListItem { Text = "Not Set", Value = null }); get-f...

Add(new SelectListItem { Text = "Not Set", Value = null }); get-files.zone.id(new get-files.zone.idrDefault(i => get-files.zone.id == id); u. . Stack Trace: [ArgumentNullException: Value cannot be null. Parameter name: source] get-files.zone.id

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Error: Value cannot be null. Parameter name: source StackTrace: at get-file...

Error: Value cannot be null. Parameter name: source StackTrace: at get-files.zone.id[TSource](IQueryable`1 source, Expression`1.

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Value cannot be null. Parameter name: source at get-files.zone.idrDefault[T...

Value cannot be null. Parameter name: source at get-files.zone.idrDefault[TSource](IEnumerable`1 source) at IronCow #

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Receiving the following error and cannot seem to find what I have missed. V...

Receiving the following error and cannot seem to find what I have missed. Value cannot be null. Parameter name: Check your linq. thanks.

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[ArgumentNullException: Value cannot be null. Parameter name: source] get-f...

[ArgumentNullException: Value cannot be null. Parameter name: source] get-files.zone.id(IEnumerable`1 source) +

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There is the question of how to handle null parameters in extension methods...

There is the question of how to handle null parameters in extension methods. was unhandled HResult= Message=Value cannot be null. Core ParamName=source StackTrace: at get-files.zone.idable.

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Seeing a lot of errors in the event viewer with the following: 'Value ...

Seeing a lot of errors in the event viewer with the following: 'Value cannot be null. get-files.zone.idrDefault[TSource](IEnumerable`1 source, Func`2.

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Error: Value cannot be null. Parameter get-files.zone.idrDefault[TSource](I...

Error: Value cannot be null. Parameter get-files.zone.idrDefault[TSource](IEnumerable`1 source, Func`2 predicate) at get-files.zone.ids.

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[ArgumentNullException: Value cannot be null. Parameter name: source] get-f...

[ArgumentNullException: Value cannot be null. Parameter name: source] get-files.zone.idrDefault(IEnumerable`1 source.

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LINQ: FirstOrDefault without the null check afterwards. What if I called Se...

LINQ: FirstOrDefault without the null check afterwards. What if I called Select before the FirstOrDefault() to get the value of the property that I.

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(because we can't change the behaviour of these members). There are ge...

(because we can't change the behaviour of these members). There are get-files.zone.id).FirstOrDefault(); > message: "Value cannot be null.

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ArgumentNullException: Value cannot be null. Parameter name: source at get-...

ArgumentNullException: Value cannot be null. Parameter name: source at get-files.zone.idrDefault[TSource](IEnumerable`1.

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