[ACCEPTED]-Which Exception to throw when a method try to use a field that can be null?-null

Accepted answer

Score: 53

Throw InvalidOperationException:

The exception that is thrown when 11 a method call is invalid for the object's 10 current state.

Note that the null reference 9 isn't being passed into the method - it's already 8 there when the method is called - so it's 7 the object's current state which is invalid, not 6 an argument.

However, it would be better 5 to prevent the object from being created 4 in this way to start with, if at all possible 3 - does it have to be a writable property? Would 2 you ever want an instance which did have a 1 null endpoint URI?

Score: 2

NullReferenceException, InvalidArgumentExecption or ApplicationException would all be fine as long as the 2 exception description clearly states what 1 it is that is null.

Score: 0

Like the others I will recommend InvalidOperationException (Because 2 John Skeet said it) :)

If you call a function 1 with a null parameter then i will use ArgumentNullException.

Source: stackoverflow.com

[ACCEPTED]-Which Exception to throw when a method try to use a field that can be null?-null

Java, Parse JSON Objects that I know are null

How do I represent an null value in type float for Ocaml

Throw an exception or return null

Null Check throws NullPointerException

Null check chain vs catching NullPointerException

Why can TimeSpan and Guid Structs be compared to null?

Should the hash code of null always be zero, in .NET

How to return empty string if an object is null?

How to handle nulls in LINQ when using Min or Max?

Practical purpose of the null-coalescing assignment operator in C#?