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

learn more… | top users | synonyms

1
vote
1answer
263 views

Clarification about Event Producer in StreamInsight

I need a small clarification about StreamInsight, I know by doc's that StreamInsight can handle multiple concurrent Events. But will the event producer be a separate function, for ex: I need to watch ...
2
votes
1answer
322 views

Clean OOP-Design: How to implement single responsibility and no procedural programming

I am currently trying to refactor a piece of C# code that is somewhat procedurally written. I want to make the design clean, object oriented and using classes with single responsibilities. The code ...
6
votes
4answers
332 views

Best practice for getting last record inserted in DB

Me and a couple of colleagues are having a discussion regarding the following case: In an OrderStatus table we're keeping track of all the statuses an order goes through in time, including "Pending",...
-3
votes
0answers
33 views

How to implement EPPlus.dll in C# using DateTime datatype? [on hold]

Excel-C#-SQL Server datatype issue with DateTime for EPPlus.dll Library I am using this library: https://epplus.codeplex.com/ //Create type table according to database columns private DataTable ...
2
votes
2answers
166 views

When is code considered a domain specific language

Today, an interesting discussion with a colleague. We're going to create a wrapper for WCF's channels, that will handle the Close(), Abort() and Dispose() correctly. This wrapper is to be used instead....
1
vote
3answers
173 views

Simplifying code of a calculator (help)

This is part of the code of a calculator that works on command line. It works fine and the math is correct but it's a little redundant: switch(Operator) { case "+": result = num1 + num2; ...
1
vote
2answers
107 views

Should I document overloaded operators in C#?

So I have been working on a C# Matrix library. I've been documenting it really good so far. The thing is I don't know if I should document my overloaded operators, I mean, it is kind of obvious, isn'...
10
votes
5answers
11k views

How to make creating viewmodels at runtime less painful

I apologize for the long question, it reads a bit as a rant, but I promise it's not! I've summarized my question(s) below In the MVC world, things are straightforward. The Model has state, the View ...
0
votes
2answers
109 views

How do you deal with a mutable buffer in a functional space?

I have a stream parsing method in C# that reads portions of a protocol frame from the STOMP protocol; the specification isn't the important part for the question though. What is important is that I ...
2
votes
3answers
420 views

Should conditional logic be always coded via type system where possible?

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 ...
-1
votes
2answers
122 views

Is main() function better on top of all other functions? [on hold]

My college professor told me that main functions should be defined on top of other function definitions. We should use a forward declaration in order to accomplish this (we use C at that time). So yes,...
2
votes
3answers
89 views

MVVM Commands - one command for everything or multiple commands?

In my last company, on handling view commands, in the ViewModelBase there were one central command implemented, like public ICommand ToolCommand { get; set; } And in the ViewModelBase, it's been ...
0
votes
1answer
111 views

How can I avoid duplicating information in this scenario?

I have a Data class that can be placed inside a DataCollection class that can be placed inside a DataCollectionCollection class. Kinda like an egg can placed inside a box that can be placed inside a ...
21
votes
5answers
13k views

When and why you should use void (instead of e.g. bool/int)

I occasionally run into methods where a developer chose to return something which isn't critical to the function. I mean, when looking at the code, it apparently works just as nice as a void and after ...
0
votes
2answers
150 views

Why is having a NotImplementedException a good thing?

C# has made a language feature of the NotImplementedException. It's added to a lot of auto-generated code, such as event handler stubs: // Auto-generated private void TextBox_MouseDown(object sender, ...
0
votes
2answers
65 views

How to calculate new property for old records efficiently?

Let's say we have classes something like this: public class Item1{ public Guid Id {get; set;} public string Name {get; set;} public decimal Price {get; set;} public int Quantity {get; ...
31
votes
6answers
3k views

Advantages of using .dll files over linking .cs files to projects (for my own generic helper classes / extension methods)

I have a helper project which I use in all the applications that I create. It contains some extension methods and a bunch of generic helper classes, controls etc. I update/extend the helper project ...
14
votes
7answers
3k views

What is the “right” way to implement DI in .NET?

I'm looking to implement dependency injection in a relatively large application but have no experience in it. I studied the concept and a few implementations of IoC and dependency injectors available, ...
-1
votes
2answers
193 views

Why use using-statements when you want to reopen connections? [on hold]

In a Winforms project I've been working on recently, I've been dutifully using using-statements for objects that implement IDisposable. I want to reopen a database connection, however because the ...
1
vote
1answer
143 views

What is the correct reusable architecture using Entity Framework for common database tables and services?

Context I have a line of business application "MyApp" in C# using EF. Layers are separated as MyResusableLib.DataAccess // Class Lib: EF based utils, extension methods, MyApp.DataAccess // Class ...
1
vote
1answer
42 views

ADO.NET - Is it better to handle a combo box or label event, and where should the data be sourced from?

Context I recently wrote a final exam that required using a BindingSource object with ADO.NET to populate a number of combo box and label controls from which the user could perform basic business ...
-4
votes
1answer
58 views

User Interface and code. How they communicate? Is it just an image and nothing to do with program code

down vote favorite Hi Does UI interface is just an Image created by graphics tools?. I need to know that when a user interface created to read an textbox in c#. when a text entered is it take values ...
0
votes
1answer
45 views

MSDN - ServiceLocation Outdated Why? Alternatives?

I recently (1 month) start working in a project and as I was going through the code I saw an using Microsoft.Practices.ServiceLocation and as I searched for the documentation on that library is says: ...
1
vote
3answers
97 views

How do you create immutable objects with many parameters?

I need to create an immutable object but it requires several parameters to work like: class FooRepo { public string ConnectionStringName { get; } public string SchemaName { get; } public ...
0
votes
3answers
139 views

Does IEnumerable required to use foreach in collections

I have following class that didnt implement IEnumerable but working perfectly with foreach. And also , arrays are working without implementing IEnumerable. So why it is keep saying that IEnumerable ...
0
votes
0answers
30 views

Custom C# Script and Security using CodeDom

I'm making a piece of rendering software and I want to make the tools it encompasses extensible. I've built a UI that lets the user write custom C# functions for blending values. The functions (and ...
4
votes
3answers
3k views

Separation of retrieving data and business objects between DAL and BLL Layers

I did some research before posting this question. Among other questions or post, one of those is provided below. I could not get a clear mind how to determine.. Business Objects within a Data Access ...
2
votes
3answers
4k views

In what situation do Entity Framework enums become useful?

I am working on a project where there will be plenty of static options being stored in the database. I looked at using Enums for this, but do not see how they could be useful. They do not create any ...
0
votes
0answers
19 views

Bi-directionally synchronize/mirror folders over the internet

I am programming on the C# stack, but I have next to none Azure experience. We have several customers who have various processing needs on data files that reside at the customers computers. We want ...
5
votes
1answer
249 views

How to move from OOP object composition to FP function composition in C#

I have been working for a few weeks on a new web project and I am realizing that all I am doing is basically calculations and transformations on data, and that most of my classes do not contain any ...
0
votes
0answers
26 views

creating a teartown in integration test by deleting the test database and load the mdf again

I had a Friday developers debate with all my smart colleagues about Tear down process in Integration testing. They are putting a debate that getting a new database mdf file is better while during ...
22
votes
9answers
2k views

Why should one want to disable compiler warnings?

This answer and the comments added to it show a way to disable several compiler warnings using #pragma directives. Why would one want to do that? Usually the warnings are there for a reason, and I've ...
0
votes
3answers
57 views

Use HttpUtility.HtmlEncode or create extension method

Should I use HttpUtility.HtmlEncode or write an extension method? Pro for using HttpUtility.HtmlEncode is that other developers can instantly see and recognise what it's doing. Pro for using an ...
1
vote
3answers
248 views

Business rules design pattern?

I'm working on an interface for implementing business rules in order to improve SOLID-ity; so I can move a lot of logic out of Web API controllers and into a business library. The Common Problem being ...
0
votes
2answers
132 views

Is an empty class in some cases correct

I know it's generally a design flaw to have an empty class, yet I'm wondering whether there are some cases where it isn't to have an empty (abstract) class to group objects. Especially when ...
-2
votes
0answers
34 views

A Role Management System in ASP.NET MVC 5 [closed]

I want to do a Role Management System step by step with MVC empty. Please anyone can help? I have to do authentication too.
0
votes
2answers
109 views

Private fields and encapsulation

I'm reading the head first c# book and don't quite understand what this means. "Any class can see private fields in another instances of the same class"
-2
votes
2answers
211 views

Is it normal for a graduate to be overwhelmed when looking at other's code? [closed]

I'm a recent graduate, applying for a junior programming position (.NET). I've spoken with a few companies already, some of which I met through a recruiter. I like one of them a lot, but I'm worried I ...
0
votes
6answers
459 views

Is it easier to read and maintain code using “!” characters, or implying “Not” in the method name?

I often find that "!" characters (meaning "not" in C-based languages) are easy to overlook. So I sometimes create methods that return the inverse result. For example, instead of doing this: if (!...
1
vote
1answer
156 views

Put code on client (JS) or server (C#)

In an ASP.NET app, I've got to decide whether to put a complex piece of code on either the client in JS or on the server in C#. I've considered performance (if on server, it would be a small ...
5
votes
4answers
7k views

How to organize MVVM files in solution

I'm fairly new to the MVVM concept but like a lot of the flexibility it gives me so far. However, I'm struggling to find a good way to manage my code. I have several classes that are just sitting in ...
4
votes
9answers
2k views

The definition of C-based language

What is the definition of C-based language? Is C# considered to be C-based? Is Java considered to be C-based? Furthermore, what does it mean for a language to be based on another language anyway?
1
vote
2answers
221 views

Most efficient method for large switch statements

Let's say you have many paths that an application can take at a certain point based on the value of a specific input (for example a simple int). Is there a certain method that is most efficient for ...
-2
votes
1answer
130 views

Is it better to learn a new language or a high level application of a known language [closed]

Recently I got chatting with my C# .NET professor and mentioned that over my free time I was learning Rust and it's been very interesting. To this the prof suggested me to not waste my ...
0
votes
0answers
24 views

Background layer for e-mail actions

My application features an e-mail layer (IEmailHandler) that implements various protocols (via IImapHandler, IPop3Handler etc.). Now when the user logs in, we fetch all their e-mail accounts (could ...
1
vote
1answer
56 views

Send messages from multiple services/application and display them in one place

Inside system I'm developing I have several Windows Services, couple of applications running in Scheduler and COM+ application that is running my custom DLL's. Some of them are running on same PC, but ...
2
votes
3answers
107 views

Why aren't properties implicitly convertible to delegates

We all know that properties in C# get compiled to actual plain old methods. But unlike method(-group)s, they can't be given as arguments to other methods excepting a delegate like a Func<T> or ...
2
votes
1answer
119 views

What are the important considerations when switching from monolithic to microservices architecture in .NET?

We are contemplating breaking up our monolithic monsters into microservices based architecture progressively. We have 5 teams, each team containing 2-3 C# developers, at least 1 database developer, ...
0
votes
3answers
697 views

Is there a key/key lookup table type provided in .NET?

It seems like a pretty straightforward thing to add, but I just want to be sure .NET doesn't already provide one and save me from adding unnecessary code: I need a lookup table (like a Dictionary) ...
0
votes
1answer
71 views

What's the best way to popullate a new row in a database?

Is it possible to add a new row to a database using DataSet, because when I created a new dataSet and dragged the table from the database I could see that in the dataSet methods there was one called ...