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I've also heard that member variables should be used to describe something that is a characteristic of a class. Have you tried to find this definition? If that parser is logically stateless and …

C#3+: internal class DataServiceAdapter : IDataService { public bool Method() { return Using(s => s.Method()); } public int Method2(string arg) { return Using(s = …

This probably depends on a specific language. In .NET (C#) it most definitely should be a plural if a namespace-type name collision is likely (the type name expected but namespace found error). I've d …

I have a virtual method that returns a collection of items that must be unique. I want to make sure that it will be obvious when overriding the method. What is the best way to do this? Here is an exa …

My co-workers tend to think that it is better to limit non-domain type suffixes to a small fixed set of OOP-pattern inspired words, e.g.: *Service *Repository *Factory *Manager *Provider I believe …

I believe what you want is a variant of Design by Contract (C# interfaces are a poor man's version of them). In C# it could be achieved via custom attributes and a static analyzer extension (e.g. for …

Providing that clients would typically consume just one method, though methods would be conceptually related, why not always apply the Interface Segregation Principle to the extreme and have [many] si …

In practical terms it means using an custom (immutable) class over a string or some other primitive type. Examples: Publishing: International Standard Book Number. Finance: International Securities …

I have a choice. Option 1: public class Sample { bool IsRelevant { get; set; } } Option 2: public class Sample { } public class RelevantSample : Sample { } Is there a clear well-known rule …