WebAug 4, 2010 · The extension method is very simple: public static string AsNullIfEmpty (this string str) { return !string.IsNullOrEmpty (str) ? str : null; } He also suggests a version checking for whitespace instead of just empty with the string.IsNullOrWhitespace () method from .NET 4, as well as similar extensions for the IEnumerable interface. WebNov 11, 2008 · "the null-coalesce operator doesn't detect empty strings." Well it is the null-coalescing operator, not the nullOrEmpty-coalescing operator. And personally, I despise mixing null and empty values in languages that distinguish between the two, which makes interfacing with things that don't quite annoying.
Null-coalescing and Ternary operator in C
WebFeb 14, 2024 · The issue arises when one expression has a non-nullable value type and the other is the untyped null. In this case the simple solution is to change the result type of the ternary operator to the nullable form of the value type. dotnet/csharplang#2460 proposes the target type be used. This is fine when that type is known, but not possible when ... WebFeb 13, 2014 · Keep in mind that .NET Collections Remove operator returns a boolean value indicating the success or failure of a removal; you can use that return value, or ignore it. If you need to keep track of whether the removal was successful, try this: C#. bool itemIsRemoved = myCollection.Remove (myCollection.FirstOrDefault (p => p != null )); flame resistant hoods
Using the Conditional and Null-coalescing Operators Pluralsight
WebJan 15, 2009 · Add a comment. 6. In simplest way, two question marks are called "Coalescing Operator", which returns first non null value from the chain. e.g if you are getting a values from a nullable object, in a variable which is not nullable, then you can use this operator. i.e. int a = 1; WebOct 26, 2024 · The ternary operator then evaluates "No" and assigns it to the lvalue. EDIT So, now you want 3 possible results: "Yes", "No" or null. A single ternary only gives you two choices. There are many possibilities and yours is fine, unless you have multiple places … WebDec 11, 2024 · In C#, ?? operator is known as Null-coalescing operator. It will return the value of its left-hand operand if it is not null. If it is null, then it will evaluate the right-hand operand and returns its result. Or if the left-hand operand evaluates to non-null, then it does not evaluate its right-hand operand. can persimmon skin be eaten