For the compilation step, you have a couple of options: You can reference the Microsoft.Net.Compilers NuGet package on a per-project basis to use that version of the compilers. You can install the Microsoft Build Tools package that is part of the VS 2015 CTP package without installing all of VS. However, as @MrHinsh notes, these … Read more
I want to clarify BJ Myers’s (correct) answer. In C# an event can be thought of as a field of delegate type — just as a property can be thought of as a field of the property type — and the value of that “field” can be null. If you are in the unfortunate situation … Read more
First of all, that is not lambda, although syntax is similar. It is called “expression-bodied members“. They are similar to lambdas, but still fundamentally different. Obviously they can’t capture local variables like lambdas do. Also, unlike lambdas, they are accessible via their name:) You will probably understand this better if you try to pass an … Read more
You can break the line into multiple lines, but I wouldn’t say the syntax looks nice any more. You need to use the $@ syntax to use an interpolated verbatim string, and you can place newlines inside the {…} parameters, like this: string s = $@”This is all { 10 } going to be one … Read more
I’ve tested this with ASP.NET MVC 5 (tested 5.2.3), and your mileage may vary with other web frameworks, but you just need to add the NuGet package for Roslyn CodeDOM. Microsoft.CodeDom.Providers.DotNetCompilerPlatform should add the DLL files… PM> Install-Package Microsoft.CodeDom.Providers.DotNetCompilerPlatform Replacement CodeDOM providers that use the new .NET Compiler Platform (“Roslyn”) compiler as a service APIs. … Read more
What you’re looking at is an expression-bodied member not a lambda expression. When the compiler encounters an expression-bodied property member, it essentially converts it to a getter like this: public int MaxHealth { get { return Memory[Address].IsValid ? Memory[Address].Read<int>(Offs.Life.MaxHp) : 0; } } (You can verify this for yourself by pumping the code into a … Read more
It won’t work this way. You can just skip the explanation and see the code below 🙂 As you know ?. operator will return null if a child member is null. But what happens if we try to get a non-nullable member, like the Any() method, that returns bool? The answer is that the compiler … Read more
Does anyone have any ideas about what could be going on? Yup – primary constructors have been removed from the plans for C# 6. They may well make an appearance in some form in a later version, but they’re not in C# 6 any more. See the “Changes to the language feature set” post from … Read more
After incorporating the various changes, the code will look like this. I’ve highlighted with comments the parts that changed and how each one helps public class Data : INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; protected void OnPropertyChanged([CallerMemberName] string propertyName = null) { //C# 6 null-safe operator. No need to check for event listeners //If there … Read more
An interpolated string evaluates the block between the curly braces as a C# expression (e.g. {expression}, {1 + 1}, {person.FirstName}). This means that the expressions in an interpolated string must reference names in the current context. For example this statement will not compile: var nameFormat = $”My name is {name}”; // Cannot use *name* // … Read more