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c# Programming Glossary: object.referenceequalsIdentifying last loop when using for each http://stackoverflow.com/questions/1068110/identifying-last-loop-when-using-for-each string lastItem list.Last foreach string item in list if object.ReferenceEquals item lastItem Console.WriteLine Looping item else Console.WriteLine..
C# object is not null but (myObject != null) still return false http://stackoverflow.com/questions/155458/c-sharp-object-is-not-null-but-myobject-null-still-return-false public static bool operator Region r1 Region r2 if object.ReferenceEquals r1 null return false if object.ReferenceEquals r2 null return.. r2 if object.ReferenceEquals r1 null return false if object.ReferenceEquals r2 null return false return r1.Cmr.CompareTo r2.Cmr 0 r1.Id.. r2.Id public static bool operator Region r1 Region r2 if object.ReferenceEquals r1 null return false if object.ReferenceEquals r2 null return..
What is a catamorphism and can it be implemented in C# 3.0? http://stackoverflow.com/questions/196294/what-is-a-catamorphism-and-can-it-be-implemented-in-c-sharp-3-0 r Tree A t Tree A t2 Node new KeyValuePair A bool t2.Data object.ReferenceEquals t t2 l t2.Left r t2.Right x y null tree tree2 class Example..
C# .Equals(), .ReferenceEquals() and == operator http://stackoverflow.com/questions/3869601/c-sharp-equals-referenceequals-and-operator o1 null object o2 new object Technically these should read object.ReferenceEquals for clarity but this is redundant. ReferenceEquals o1 o1 true..
http://stackoverflow.com/questions/3872816/should-i-use-struct-or-class reference types are by default semantically equivalent to object.ReferenceEquals this is not a be all and end all rule. There are two basic things..
http://stackoverflow.com/questions/735554/reference-equality-performance-difference-objectobj1-objectobj2-vs-ob performance difference object obj1 object obj2 vs. object.ReferenceEquals obj1 obj2 Is there extra overhead in using the object.ReferenceEquals.. obj1 obj2 Is there extra overhead in using the object.ReferenceEquals method verses using object obj1 object obj2 In the first case.. what about inequality object obj null as compared to... object.ReferenceEquals obj null I suppose that at some point a logical negation would..
How do I check for nulls in an '==' operator overload without infinite recursion? http://stackoverflow.com/questions/73713/how-do-i-check-for-nulls-in-an-operator-overload-without-infinite-recursion foo1 foo2 public static bool operator Foo foo1 Foo foo2 if object.ReferenceEquals null foo1 return object.ReferenceEquals null foo2 return foo1.Equals.. foo1 Foo foo2 if object.ReferenceEquals null foo1 return object.ReferenceEquals null foo2 return foo1.Equals foo2 share improve this answer..
Difference between == operator and Equals() method in C#? http://stackoverflow.com/questions/9529422/difference-between-operator-and-equals-method-in-c case you would still get true even if you printed object.ReferenceEquals s1 s2 or if you made it use a true reference identity comparison..
Simplify Overriding Equals(), GetHashCode() in C# for Better Maintainability http://stackoverflow.com/questions/9707918/simplify-overriding-equals-gethashcode-in-c-sharp-for-better-maintainabilit are welcome public override bool Equals object obj if object.ReferenceEquals this obj return true MyDerived other obj as MyDerived if other..
When Should a .NET Class Override Equals()? When Should it Not? http://stackoverflow.com/questions/9709088/when-should-a-net-class-override-equals-when-should-it-not follows this pattern public bool IsEquivalentTo A other if object.ReferenceEquals this other return true if other null return false bool baseEquivalent..
http://stackoverflow.com/questions/1722896/vb-to-c-sharp-functions arrays LBound yourArray.GetLowerBound 0 IsNothing Object.ReferenceEquals obj null Chr Convert.ToChar Len string .Length UCase string..
mvvm how to make a list view auto scroll to a new Item in a list view http://stackoverflow.com/questions/3317194/mvvm-how-to-make-a-list-view-auto-scroll-to-a-new-item-in-a-list-view merely reporting that a descendant's Selected fired. if Object.ReferenceEquals sender e.OriginalSource return ListBoxItem item e.OriginalSource..
C# Distinct on IEnumerable<T> with custom IEqualityComparer http://stackoverflow.com/questions/432829/c-sharp-distinct-on-ienumerablet-with-custom-iequalitycomparer whether the compared objects reference the same data. if Object.ReferenceEquals x y return true Check whether any of the compared objects is.. true Check whether any of the compared objects is null. if Object.ReferenceEquals x null Object.ReferenceEquals y null return false return x.AllianceName.. compared objects is null. if Object.ReferenceEquals x null Object.ReferenceEquals y null return false return x.AllianceName y.AllianceName int..
Differences in string compare methods in C# http://stackoverflow.com/questions/44288/differences-in-string-compare-methods-in-c-sharp Same as .Equals .. as it just calls that method. Object.ReferenceEquals stringValue otherStringValue Just checks that references are..
Serializable classes and dynamic proxies in EF - how? http://stackoverflow.com/questions/7276507/serializable-classes-and-dynamic-proxies-in-ef-how class Claims however when the check in the clone method if Object.ReferenceEquals source null gets hit I get the error System.ArgumentException..
Operator Overloading with Interface-Based Programming in C# http://stackoverflow.com/questions/728434/operator-overloading-with-interface-based-programming-in-c-sharp argument are the same instance or null they are equal if Object.ReferenceEquals lhs rhs return true return lhs.Equals rhs public static..
http://stackoverflow.com/questions/78536/deep-cloning-objects-in-c-sharp a null object simply return the default for that object if Object.ReferenceEquals source null return default T IFormatter formatter new BinaryFormatter..
Is there a much better way to create deep and shallow clones in C#? http://stackoverflow.com/questions/8025890/is-there-a-much-better-way-to-create-deep-and-shallow-clones-in-c ArgumentException The type must be serializable. source if Object.ReferenceEquals source null return default T IFormatter formatter new BinaryFormatter..
Overriding GetHashCode for mutable objects? [C#] http://stackoverflow.com/questions/873654/overriding-gethashcode-for-mutable-objects-c equality comparer in a way that will use IEquatable T over Object.ReferenceEquals. Even without IEquatable T most will default to calling Object.Equals.. value equality for all comparisons. Users can still use Object.ReferenceEquals if they actually want reference equality. I used to assume that..
How many String objects will be created when using a plus sign? http://stackoverflow.com/questions/9132338/how-many-string-objects-will-be-created-when-using-a-plus-sign string result 1 2 34 Prints True Console.Out.WriteLine Object.ReferenceEquals result MakeIt Prints True also Console.Out.WriteLine Object.ReferenceEquals.. result MakeIt Prints True also Console.Out.WriteLine Object.ReferenceEquals result RESULT Console.ReadKey In the case where Strings are..
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