C# is a multiparadigm, managed, garbage-collected object-oriented programming language created by Microsoft in parallel with the .NET platform

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Decorater pattern or strategy pattern

I'm constructing a c# serverside application and I'm trying to do this in a way it can easily be maintained aswell as extended if needed. So what we have is 4 different requests that need to be done ...
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1answer
66 views

Factory for abstract class

I have an abstract class MyAbstractClass. I also have lots of implementations of that class, and I want to create a factory for these implementations. Need to end up with usage like that: ...
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2answers
656 views

How can I avoid these nested repetitive ifs?

I'm trying to implement a web interface for a user database. Hosts can create guests for their courses, the guests can get deleted after the course has ended but have to remain in the database for a ...
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1answer
116 views

Where should the following business logic be written?

I have a C# console application. This application has many different projects/C# class files, each of them dedicated to parsing a certain kind of XML and creating an object, called 'Response'. Now, ...
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5answers
290 views

Interview Question - Adding Method to interface that has been implemented by thousands of class [closed]

There is scenario where I have Interface X, which has been implemented with my thousands of classes. Now I want to add new method in that Interface X. So how to make the changes in minimal way to ...
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0answers
34 views

Using Process.Start to capture console output [migrated]

unfortunately i'm new in C# and this should be a stupid question but i need it, hope someone should help.. Based on this article: ...
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2answers
262 views

Can I update an attached object using a detached but equal object?

I retrieve movie data from an external API. In a first phase I will scrape each movie and insert it into my own database. In a second phase I will periodically update my database by using the API's ...
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1answer
93 views

When and how to apply application settings in .Net

I know that I can access application settings in .Net using Properties.Settings.Default.aSetting. What is the best way to apply them: To directly read them in the function which relies on them. ...
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1answer
393 views

What is the purpose of Code analysis and when do I need to use it?

I heard about Visual Studio's Code analysis but never used one. I've read MSDN, but still don't understand the real use of Code analysis. Isn't it the same as StyleCop? Somewhere, FxCop was also ...
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2answers
92 views

What naming convention should you use for data objects solely meant for parameters

This is my pseudocode for DAL: CusOrderDTO GetCustomerOrder(DateTime OrderDate, string customerCode) CusOrderDTO orderSet = new CusOrderDTO() * query data from database, populate CusOrderDTO ...
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0answers
79 views

How is CancellationToken.IsCancellationRequested updated?

I've been doing some refactoring today and I encountered one interesting thing. I've extracted a method from a code which uses a cancellation token passed to it in order to check if the user did not ...
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2answers
972 views

Is using interfaces for datatypes an anti-pattern?

Suppose I have a various entities in my model (using EF), say User, Product, Invoice and Order. I am writing a user control that can can print the summaries of entity objects in my application where ...
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7answers
4k views

Team member questioning moving from VBA to C#

Background Last year, I was asked to create a tool to be used for business planning for around 10 users. This was done on behalf of another IT team who "sub-contracted" the work to me, and due to the ...
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1answer
149 views

Are there any languages that don't need to be compiled? when dealing with c# [closed]

Are there any languages that don't need to be compiled? when talking about c# in programming
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2answers
176 views

How to organize predefined queries with Entity Framework?

I have some queries that I use all the time (like get rows only of some specific type, or count something etc.). I'd like to organize them somehow (better then I currently do). Currently I have them ...
3
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2answers
117 views

Design, how to utilize The Hardware (multiple threads and/or GPU) while indexing (via a database) a very large set of binary files

Problem How can design my file parser to maximize the hardware when processing (creating meta data for) a large file (i.e. how to avoid being blocked by IO and running out of memory) preferably ...
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2answers
186 views

When to create a custom exception in C#

I'm writing a class to interface with a simple hardware device over a COM port. The device can configured to use various modes, so my class has a SetOperatingMode function, that takes in an enum of ...
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1answer
124 views

Portable Data in C# App

I have developed a C# front end app for management of an SQL Database for the purposes of document control. The project this database is for has several consultants and a client spread in a variety ...
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1answer
49 views

Event action abstraction and trigger control

I am thinking of abstracting Event action in order to make further alteration/implementation/maintenance easy since the project I am currently working on has volatile requirement. So I thought of the ...
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1answer
47 views

Initialize object from SqlDataReader

As of now, we have two different styles of object intializations based on SQL row in our codebase: public Config(SqlDataReader sdr) { for (int i = 0; i < sdr.FieldCount; i++) if ...
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4answers
1k views

Is it bad practice to make methods public solely for the sake of unit testing? [duplicate]

I have a class with a public method. It has other methods that 'assist' with the purpose of the public method. The public method must be tested. However, I also want to unit test the private methods. ...
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2answers
95 views

Library design: better to leave potentially destructive feature in with a warning, or cut it out completely?

I recently created a red-black tree in C# to better understand how it works. With it, I implemented an in-order enumerator, however I quickly realized that enumerating a tree can have destructive ...
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1answer
108 views

Styleguide when coding in a static language

I am currently a junior engineer and keen on learning best practices and expanding my experience. My question concerns any static programming language such as Java, C#, C++ etc. When I am writing ...
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1answer
57 views

Lock object in base class: private or protected? [closed]

I have a base class that contains some lists, queues, and other fields which determine its state. In the base class I only access these fields within a protected lock object since there could be ...
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1answer
106 views

Using and referencing external executables in a solution

I have an application written in AS3 which I need to be able to start up from my C# application. I have a prototype that does this just fine but my question is in relation to how I would arrange my ...
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4answers
241 views

How to make one test depend on the results of another test?

Let's say there is a utility class that provides some common static methods used everywhere in your code by many other classes. How would you design your unit tests for the consumers of the utility ...
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0answers
14 views

C# gets an enum, but doesn't work correctly with switch statement [migrated]

Im having some trouble with enums and then checking it with a switch statement. I'm not sure if I'm doing something super wrong, but I don't get any errors so hey. # Level.cs enum LevelID { ...
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4answers
3k views

Why structs and classes are separate concepts in C#?

While programming in C#, I stumbled upon a strange language design decision that I just can't understand. So, C# (and the CLR) has two aggregate data types: struct (value-type, stored on the stack, ...
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1answer
204 views

Reducing the complexity of over-designed code

I have just started working at a company where I have inherited a C# codebase from a previous developer. I know programming well, have an engineering degree + an (unfinished, several year long) PhD ...
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0answers
47 views

Result with value or error returned from service c# [duplicate]

First of all, let me explain the current situation. In a ASP.NET project, we do some ajax calls to a WCF service. This service always returns a value when called. But this is the way they implemented ...
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0answers
2 views

How to have only one of two DataGridViewCheckBox columns checked or true in a DataGridView [migrated]

I have a DataGridView with five columns defined. The user populates the DataGridView at runtime by selecting one or more files through an openFileDialog and the file name(s) are loaded into the first ...
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2answers
99 views

Create the fields in class level then instantiate inside methods or create and instantiated inside methods

I'm a newbie in software development. Just wondering which code is better and why should I continue which pattern should I follow. First Snippet: Class TestClass { private Object1 field = null; ...
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3answers
166 views

Concurrent collections, should read methods allow multiple threads at one time?

I have custom collection and I want to add wrapper to allow concurrent access. public class MyConcurrentCollection<T> { private MyCollection _collection; // passed in constructor ...
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3answers
162 views

Write a (good) code convention for c# [closed]

As a relative new trainee in my company, I've been asked to write a code convention since the project is 6 years old and nothing have been done. Here's the points I came up with: VARIABLE ...
3
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1answer
187 views

Tracing an object

Suppose I want an object with a list of strings and every method that this object gets passed to adds its name to the list of strings. Basically it's a stack trace, except unlike a stack trace it ...
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2answers
87 views

Technique to synchronize error codes in a same-project-API

In the project I am working right now, we have some python and some C# code. At some point, I call from python a subprocess which starts a C# executable. This C# code returns an error code, which has ...
2
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5answers
267 views

Is it bad or good to wrap mutable objects in immutable containers?

If I have parts of code that need to mutate the underlying data structure but then others that consume, not mutate the structure, is it good practice to create a wrapper which does not expose mutation ...
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1answer
126 views

Does merely parameterizing a dependency meet the requirements for Inversion of Control?

When I find a concrete dependency inside an extension method, I have been attempting to remove the (concrete) dependency by parameterising it like so // original implementation public static ...
0
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1answer
41 views

Separate Drawable objects and their Data

I am looking for a way to design my application. Suppose you had a car drawing thing. Car has multiple parts.Some are going to be visible some are not.For example battery should be drawn. So someone ...
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0answers
89 views

How shall I project CQRS command and query services through WCF

I got directed to this site for more conceptual questions. Here is my issue: Im designing an application that uses CQRS to expose functionality to higher levels in the stack. This looks like below ...
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2answers
217 views

Is checking that a property doesn't throw an exception a valid unit test?

I'm writing tests for the following class: public class Foo : INotifyPropertyChanged { private int _failCount; private int _totalCount; public double FailRate { get { double ...
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4answers
266 views

Is static going to make any difference in this code snippet

I have been to an interview and was asked this question - is there any difference adding or removing the static keyword in these classes? I know what static means but my understanding of this point ...
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2answers
146 views

Smells in exception handling: how to separate between public and internal exceptions?

During the development of a small web API, we decided to separate internal exceptions from public exceptions. Public exceptions are HTTP exceptions, that translate into HTTP responses with proper ...
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3answers
115 views

Accessing shared data without blocking in TPL

I am writing a class that contains data. It exposes methods that allow to query the data, while the data is also being updated from an external source (web service, for example). All the methods ...
0
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1answer
117 views

Writing code with language features yet to come in mind

In C#6, we will (most likely) have the nameof operator, a very useful operator for the ArgumentNullException pattern: public void M(T x) { if (x == null) { throw new ...
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2answers
142 views

Which design (pattern) would be suitable to abstract logging platforms?

I need to create a simple system to abstract logging platforms. The idea is that I'd like to be able to exchange or activate a logging platform (nlog, log4net, enterprise library) via some ...
0
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1answer
192 views

Is it good practice to shorten functions? [duplicate]

Is it good practice to shorten functions? Like this code for instance: using System; namespace Hello { class Program { public static void ...
3
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1answer
139 views

How can I use the “Non-Member Functions Improve Encapsulation” pattern from C#?

In 2000, Scott Meyers argued that non-member functions improve encapsulation. In C++, a non-member function is a C-style global function: ...
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3answers
199 views

How to save complex data to file/disk?

I am working on a side project for a small business owner (my father) and part of the requirements for the application include saving customer and job related data in a way that it can easily be ...
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1answer
88 views

Software architecture confusion App-Server/Client

i have a question about the following software architecture: So, there is one database, an app server, which provide a restful service, a client and a framework, used by the app server and the ...