Entity Framework 4: C# !(ReferenceEquals()) vs !=
- by Eric J.
Unless a class specifically overrides the behavior defined for Object, ReferenceEquals and == do the same thing... compare references.
In property setters, I have commonly used the pattern
private MyType myProperty;
public MyType MyProperty
{
set
{
if (myProperty != value)
{
myProperty = value;
// Do stuff like NotifyPropertyChanged
}
}
}
However, in code generated by Entity Framework, the if statement is replaced by
if (!ReferenceEquals(myProperty, value))
Using ReferenceEquals is more explicit (as I guess not all C# programmers know that == does the same thing if not overridden).
Is there any difference that's escaping me between the two if-variants? Are they perhaps accounting for the possibility that POCO designers may have overridden ==?
In short, if I have not overridden ==, am I save using != instead of ReferencEquals()?
