Questions tagged [.net]
.NET is a software framework supporting a multi-language paradigm and supporting language interoperability. .NET applications are executed in a virtual machine (CLR) which provides a few important services: security, memory management and exception handling.
1,234
questions
45
votes
3
answers
6k
views
Benchmarking things in C#
I needed a better way to benchmark code, because, well, rewriting the same benchmarking code every time I need it is just...well...unpleasant.
So, here's a class which does just that, it runs an <...
- 20.1k
40
votes
3
answers
10k
views
Exporting doc types using queues and multithreading
For a while I have been interested in seeing if some tasks work well when split across multiple threads.
On the one project I have been busy with I have been creating a lot of small utility apps, to ...
- 655
36
votes
6
answers
5k
views
DisposableObject base class for C#
I commonly run into the need to implement IDisposable in my code. To correctly dispose of both managed and unmanaged resources requires a reasonable amount of boilerplate code. Based on the ...
- 765
33
votes
3
answers
49k
views
Entity framework with repository and Unit Of Work pattern and POCO architecture
This is my architecture to EF4 using repository pattern and unit of work pattern with POCO. I believe I made some mistakes.
I have a solution with 5 projects:
...
- 515
31
votes
6
answers
3k
views
Extensible code to support different HR rules
Recently, I got challenged to code with following bullet points:
Extensible code to support different annual leave rules for HR departments
Maintainable code to add/change the existing rules without ...
- 723
29
votes
5
answers
50k
views
Type-safe Dictionary for various types
Assume the following situation: you have an object that can store any object based on a key (basically, IDictionary<string, object>). You want to store ...
- 24.1k
28
votes
2
answers
15k
views
Reusable Unit Of Work Interface / Factory
Given my IUnitOfWork interface
using System;
public interface IUnitOfWork : IDisposable
{
void Commit();
}
I then ...
- 409
28
votes
1
answer
7k
views
Fluent LinkedIn REST API client interface design
There is a handful of LinkedIn clients written in C# on the NuGet package library, but as far as I can tell, most only do authentication via LinkedIn. I found a couple which offer a LinkedIn REST API ...
- 411
26
votes
2
answers
127k
views
Implementing a good TCP Socket Server
I'd like a code review on my very simple server application that validates whether the serial number retrieved from the client is a valid one or not.
Is there a better way to handle the start/stop ...
- 1,050
23
votes
5
answers
21k
views
Best way to pass parameters to Factory class?
So I have a series of objects, which I will call Impl1, Impl2, and Impl3. They each implement an interface, called IImpl. I have a Factory class who's task is to retrieve the ImplX which is ...
- 451
22
votes
2
answers
56k
views
Creating a thread-safe list using a Lock object
Will this code qualify for a truly thread-safe list? It is using the Lock object.
...
- 404
21
votes
3
answers
16k
views
Determining if a connection has been made to a communications device
I am unsure if my use of Monitor.Wait and Monitor.Pulse is correct. It seems to work alright, but there is a nagging doubt I am ...
- 343
20
votes
4
answers
8k
views
Matrix class in C#
I've been learning C# during my free time in the past months; before that, I was mostly writing Java, so the transition hasn't been too hard, but I've never had my code reviewed or read by someone ...
- 558
20
votes
4
answers
44k
views
19
votes
8
answers
3k
views
Counting elements meeting a predicate in an enumerable without iterating the entire sequence
I was reading this question, and the answer that mentioned streams, and a thought had occurred to me.
In many cases (at least in my usage) I want to determine if a sequence (or ...
- 20.1k
19
votes
2
answers
96k
views
Displaying data from a database onto a form
I'm a beginner to .NET and could you guide me to right direction. My problem is based on the following code. Here I have 4 variations of same method and all 4 variations are working fine.
What is the ...
- 1,743
19
votes
3
answers
10k
views
scoped_ptr for C++/CLI (ensure managed object properly frees owned native object)
Motivating SO question: Is there a C++/CLI smart pointer project (e.g. scoped_ptr)?
I'm interested in any reviewer comments, and especially identified bugs or inconsistencies with the native ...
- 852
18
votes
3
answers
9k
views
Change desktop background
I've created a simple program that downloads an image (different image every day), then sets it as my desktop background.
It is a console application, and closes immediately after downloading the ...
- 776
18
votes
2
answers
1k
views
Enforcing string validity with the C# type system
One of my biggest complaints about .NET is that there's no way to guarantee a string match a certain type in the type-system.
Note
This started as more of a proof-of-concept than a real usable system,...
- 20.1k
17
votes
5
answers
2k
views
Populating a ListView with Items
I populate a ListView with Items. Each Item has data attached to its .Tag property.
Over time, I have needed to handle many cases where something would be null or ...
- 273
17
votes
1
answer
56k
views
Method that returns description attribute of enum value
I have the following method in .NET Core that returns the description attribute of an enum value. I think this code can be more elegant. I'd appreciate some ...
- 335
17
votes
3
answers
2k
views
Simple Linked List
I've implemented a simple linked list in C# using generic T for values. I did not inherit from any of .Net's fun and helpful classes like ...
- 4,278
17
votes
2
answers
16k
views
Secure password hashing
I have found a password hashing article and an implementation.
Is this code secure if I increase the salt to 64 bytes, hash key size to 128 bytes and the iterations to 10000? Are there ...
- 273
16
votes
6
answers
17k
views
Determine if an image is opaque or transparent
I wrote an extension method defined for the Image Class (System.Drawing) —
which returns a Boolean value telling you if the image is opaque or transparent.
The color of each pixel in the image is ...
- 1,484
16
votes
4
answers
575
views
Entities and the things they do
So I have an Entity, which is responsible for providing an abstract base for other objects to inherit. (Like Actor objects, ...
- 20.1k
16
votes
4
answers
1k
views
Is decoupling necessary for very small applications?
I threw together a small solution for my organization today for some basic data review and approval procedures. This particular application will likely not change or add functionality at any time.
...
- 291
16
votes
1
answer
338
views
Open source project to ease the Assert part from the functional tests of .Net Core Web APIs
I have built an open-source project based on FluentAssertions in order to solve some recurring tasks I was doing while testing the .Net Core APIs I'm developing.
I find the capability of doing in ...
- 371
15
votes
5
answers
38k
views
15
votes
2
answers
10k
views
Guitar Hero III Bot
I made a Guitar Hero III bot for PC. I was able to beat the song "Through the Fire and Flames" on Expert with the bot which can you see here.
If you watched the video, you can see that the bot misses ...
- 1,484
14
votes
7
answers
46k
views
Regex validation for Email Address
I need to validate whether my regex is correct for below scenario. Suggestion's if the regex is correct:
Wiki Link Local_part
The local-part of the email address may use any of these ASCII ...
- 193
14
votes
6
answers
4k
views
Showing various network information from a NIC card
I have included the code from a second year project that I would like some advice on. Basically it utilises WMI to query a NIC card from a selection (depending how many are installed in the host ...
- 241
14
votes
7
answers
1k
views
Binary Heap where a comparison delegate is used
I currently have a Generic Implementation of a BinaryHeap. It must be able to maintain it's integrity with elements that may or may not implement ...
- 143
14
votes
5
answers
1k
views
Reusable implementation of IComparable<T>
I often find myself implementing IComparable{T} in different classes for sorting in a very similar fashion:
Values meeting criteria X and Y should be sorted to ...
- 289
14
votes
6
answers
1k
views
Form to create new students or view existing student information
I started out with the best of intentions, but this form got hacky real fast.
It's purpose is to serve as a create new Student form. Also, if you want to view an existing Students information.
Think ...
Sergio Tapia
14
votes
9
answers
1k
views
How can I refactor to avoid repetition finding the index of strings in a list?
I have a list of strings where I want to find the index of a first- and second-choice video compressor.
Logic: If the first choice is available, return its index. If not, and the second choice is ...
- 307
14
votes
4
answers
2k
views
Making a web service call based on a type of request
I have my code which makes a web service call based on a type of request:
...
- 723
14
votes
3
answers
31k
views
Convert string to multiline text
I made this method that takes any string and transforms it into a multiline text l; each line having the max (character) length specified by the rowLength parameter....
- 143
14
votes
3
answers
18k
views
Design pattern for implementing multiple data sources
I've written a program to populate a particular object from multiple data sources, however I'm not convinced I'm going about this in the right way:
I have no idea which (if any) design pattern I have ...
- 487
14
votes
3
answers
22k
views
Timing out a method
I have created this extension method that can be used to run a function with a timeout applied to it. Is this a sensible way of doing it?
...
- 281
14
votes
2
answers
18k
views
Listing the weeks in a given month
I need to take a month (defined as a start and end date) and return a set of date ranges for each week in that month. A week is defined as Sunday through Saturday. A good way to visualize it is if ...
- 447
13
votes
3
answers
5k
views
What do you think of this improvement of Linq's GroupBy method?
Linq already has a set of GroupBy methods for enumerable, which returns IEnumerable<IGrouping<TKey, TSource>>. I dislike this return type because it ...
- 335
13
votes
5
answers
13k
views
Is this Repository Design Pattern Valid and efficient?
I am using Dapper ORM in my Data access Layer, but I think analysis of the code below doesn't depend upon any specific ORM. What should be the single common place throughout the entire Data Access ...
- 231
13
votes
4
answers
52k
views
Test connection to database C#
I've created a small method to test the connection to a database:
...
GigaPr
13
votes
4
answers
493
views
Lines, intersections and terrible unit tests
I needed Line and LineF for the next stage of a project I'm working on, so I developed them. I also needed to determine if two ...
- 20.1k
13
votes
2
answers
34k
views
Mapping ExpandoObject to another object type
I am working on a helper method that maps properties from an ExpandoObject to a user supplied object and was wondering if the code could be cleaned up or made any ...
- 233
13
votes
5
answers
20k
views
Disposing the Context in the Repository pattern
I have a question about the Repository pattern:
...
- 379
13
votes
1
answer
5k
views
Generic Converter framework
I find myself frequently converting between formats, so I have come up with the following conversion framework. The converter interface surfaces a method to convert from a source type to a target type....
- 233
13
votes
1
answer
5k
views
ResettableLazy<T>: a resettable version of .NET Lazy<T>
I implemented a resettable version of .NET Lazy (context: mostly to use it in a MemoryCache for auto refresh purposes on item expiration)
This is a very naive implementation and I am pretty sure ...
- 1,111
13
votes
1
answer
597
views
.NET 4.5 licensing subsystem using RSA-4096 strong name key, SHA256 signed XML, and assembly signature enforcing
Abstract
For the past week I have been looking at taking advantage of the .NET 4.5 improvements to code signing and XML signing to produce a licensing subsystem I can use to license my own products. ...
12
votes
3
answers
16k
views
Extension method replacing elements from an IEnumerable<T> collection
Today I needed a method to replace all 'x' values in a said collection. Since there is no such method by default in .NET I wrote my own:
...
- 8,428