Differences Nullable values: .Value or not?
89714
What is the difference between Nullable.HasValue or Nullable != null?
20892
C# nullable string error
41898
Nullable integer in .NET
124080
How does the assignment of the null literal to a System.Nullable type get handled by .Net (C#)?
119530
Difference between Element.value and Element.getAttribute("value")
75247
Convert string to nullable type (int, double, etc...)
72088
Why shouldn't we allow NULLs?
599
Is Java "pass-by-reference" or "pass-by-value"?
37050
What is the difference between (type)value and type(value)?
132398
What is null in Java?
43769
How do I Parameterize a null string with DBNull.Value clearly and quickly
2146
object==null or null==object?
109876
In the msdn guidance on Equals override, why the cast to object in the null check?
98908
Is it good practice to set variables to null when they are no longer needed?
114718
Is there a DBMS that allows the "= NULL" syntax?
94973
Why type "int" is never equal to 'null'?
151825
Is there any difference between "foo is None" and "foo == None"?