Why string or object type don't support nullable reference type?
20892
C# nullable string error
41898
Nullable integer in .NET
49
What is a NullPointerException, and how do I fix it?
45869
Why null cast a parameter?
99035
Why can't I add properties to a string object in javascript?
1605
What is the reason behind "non-static method cannot be referenced from a static context"?
8808
Strange Java null behavior in Method Overloading
93305
Nullable type as a generic parameter possible?
64332
avoiding null reference exceptions
115252
How do I pass a primitive data type by reference?
3868
Why use the 'ref' keyword when passing an object?
29684
How to check if an object is nullable?
111535
Why does the ArrayList implementation use Object[]?
68713
Why is it Valid to Concatenate Null Strings but not to Call "null.ToString()"?
91943
What is the use of "ref" for reference-type variables in C#?
88920
Is using NULL references OK?
108336
Nullable Object must have a value #2