Very often you have to check different object if they are not null and then perform a kind of action with them. You would do this check like this:
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MyClass value = this.getValueBySomeMethod(); Console.WriteLine((value == null) ? "No value returned" : value); |
In C# 2.0 there is very useful operator – ?? (knows as null coalescing operator). It checks if the left operand is equal to null returns the right one. If it is not null => it returns it. Here is a simple example.
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MyClass value = this.getValueBySomeMethod(); Console.WriteLine(value ?? "No value returned"); |
Isn’t is awesome? 🙂 You safe writing redundant code and your code looks more pleasant.