Questions tagged [asp.net]

ASP.NET is a web application framework developed by Microsoft to allow programmers to build dynamic web sites and web applications.

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276 views

C# lock on string value

Our codebase is full of locks such as: lock("Something." + var) { .... } This causes issues due to strings not meant to be used in locks in this way. ...
1 vote
1 answer
50 views

Handling resource authorization in a service

Problem: My application is built upon clean architecture. I want to create a new instance of a class in my lower layer, but the class itself resides in an upper layer. The upper layer can depend on ...
-1 votes
1 answer
78 views

Basic ASP.NET Core RESTful API with Entity Framework Core

This is my first WIP backend asp.net application, which I will pair with react to create a full stack app. The thing I'm mostly worried about is model conversion to DTO and custom policy authorization,...
1 vote
1 answer
1k views

Beginner CRUD Console Application

I wrote this basic CRUD app + simple report so I could practice talking to a db directly. I purposefully avoided repository pattern and Entity Framework and only used a library to show the coming data ...
2 votes
2 answers
152 views

Best Practice for Button Event Handler

I have a button btnSearch and the event handler btnSearch_Click inside my asp.net web application, using web forms. (certain ...
1 vote
1 answer
125 views

Parse meter readings from CSV file

I have a class representing meter readings: ...
0 votes
0 answers
30 views

Access to IIdentity outside of aspnet application

My ASP.NET application references a classlib that contains the business logic, where I need to have access to the IIdentity of the "current user". In ASP....
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1 vote
1 answer
84 views

Asp.net core response caching with custom key values

I'm trying to build a response cache with custom key values (from headers and cookies). Here's the code I have so far, and it kinda works, but I need a second opinion or suggestions for improvements. ...
  • 113
0 votes
2 answers
94 views

How to replace the given email address with a value in a given input?

I have written the below method to replace some of the email domains like @gmail.com and @yahoo.com with a given text. ...
3 votes
1 answer
345 views

.Net 5.0 Get User Email From Claims

From searching online I have identified two ways to get the user email, but I don't know if either has pro's/con's beyond Option.1 being a larger number of lines of code? Option.1 I have a dedicated <...
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2 votes
1 answer
84 views

Asp.Net overall design pattern integrating REST, dependency injection, and Hosted Services (See full project at Github)

I'm new to C#, and want to conform as much as possible to good design patterns. This code is the beginning of a Microservice, running as Asp.Net. It is based on a Microsoft tutorial doing similar work....
0 votes
1 answer
186 views

Is this correct way to setup DB Infrastructure with repository pattern and Dapper

So, I am using Repository pattern with Dapper and ADO.NET. I have my based DB infrastructure setup as follows: ...
1 vote
3 answers
3k views

C# Asp.net core middleware for redirecting URLs

I wrote a small middleware for redirecting between WWW URLs. The most important thing that I want to change is to make it super fast. Here's what it is doing: If the host is localhost or mywebsite.com ...
2 votes
1 answer
117 views

Reviewing Basic API

I'm learning ASP.NET and I've created a few simple APIs, so I can consider myself maybe an intermediate beginner. I've decided to create a tutorial serving two purposes: to solidify what I've learned ...
1 vote
0 answers
55 views

Adding multiple child entities to a parent entity when creating the parent entity

I have a form on a page to add a Post (parent), before submitting the form, a user should be able to add 1 or more Sections (children) to the Post. The form: ...
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1 vote
2 answers
588 views

ASP.NET Core async iactionresult

I am new to async methods and am kinda confused how async is working so what i want for you to do is review this code and tell me does implementing async like this is meaningless ...
7 votes
3 answers
2k views

C# Am I using proper SOLID principles?

I am currently practising using the SOLID principles in C#/.NET I have made a little example, but i am not sure if i have followed it correct. Its a simple example where i have an API controller that ...
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3 votes
0 answers
1k views

Validating the model outside of the controller in ASP.NET

I wasn't quite sure whether I should do it this way or create a validation service and inject it, but this works: Controller: ...
  • 107
9 votes
2 answers
3k views

C# Convert BLOB to jpg, resize, then back to BLOB

I am trying to convert a BLOB that is stored in a database to a JPG and then I need to display it on an ...
  • 193
1 vote
1 answer
315 views

Validating a name with C#, ASP.NET Core 3.1 and Regex

This class validates that a name contains only letters and optionally spaces, hyphens and apostrophes. ...
  • 107
3 votes
2 answers
3k views

Validating a date with C# and ASP.NET Core 3.1

I have a simple class to ensure the date entered into a form is a valid date. Where can I improve it, have I missed anything? ...
  • 107
7 votes
2 answers
3k views

ASP.NET Core 3.1 AddHttpClient call that includes a call to the database

So, I have an ASP.NET Core 3.1 web site that makes occasional calls to a vendor's RESTful API. I use the HttpClient class to perform these calls. Currently, the ...
1 vote
1 answer
66 views

Decoupling of validation and data access in ASP.NET

I've been asigned to a project no dev has touched in a long time. It's an ASP.NET MVC 4 application. It appeared to be well coded, but had no testing and the database migration folder is not present. ...
  • 165
3 votes
0 answers
39 views

Prettified GridView: is this JS code concise?

I been writing code for my company for years and there is never any constructive criticism for what I do. I am the only developer here and I would appreciate your opinion on this web page I made. It ...
1 vote
1 answer
760 views

ASP.NET EF seed one to many relation

I am creating a simple model relation in ASP.Net core. My model relations are like this: A user can have many posts A post can have many comments A user can have many comments Now I am trying to ...
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-2 votes
1 answer
75 views

Is it good practice to use try catch only for a part of the code [closed]

When I submit the form, I need to validate the input data from an HTML form field, which comes from the user who submitted the data. So inside the Page_Load event, ...
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3 votes
2 answers
161 views

Asynchronous catalog with paging and partial views

I'm trying out .net core with mvc in a personal project, the latest functionality I've added was a project catalog, primarily ajax based, it's displaying a list of projects fetched from the database ...
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1 vote
2 answers
69 views

Collecting 3 years of data and building a string

I am collecting 3 years of data and building a string that will be used with an ASP Literal control. The method GetListOfMeetingBygroupId takes in a ...
  • 493
3 votes
0 answers
4k views

Hosted service for queuing and running tasks in parallel in ASP.NET Core

I am attempting to construct a background service for an IIS-hosted ASP.NET Core project that basically queues tasks and runs them, and I decided to go with the ...
  • 139
2 votes
1 answer
662 views

Extension method for getting custom Principal Claim

I'm writing extension methods to shorten the code required to get custom Claims from an IPrincipal. I have two general forms for ...
3 votes
1 answer
106 views

Refactoring code to implement clean code using repositories

I've been refactoring code today, try to implement a clean code setup using repositories. Is this on track? Can any improvements be made? ...
0 votes
1 answer
110 views

Asp.net middleware [closed]

This code is asp.net core middleware written in f# and called from c# for a blazor server-side app. How can this be made more efficient if any in regards to the async code. F#: ...
2 votes
1 answer
127 views

Hosted service which perform CRUD operations in high update environment

I have this hosted services which garbs the data from the API and save it in the database. But before saving it checks if the data already exists in the DB if not it creates the new row and if it ...
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3 votes
1 answer
83 views

Logic is stored in Components that receive input data and update output data via Observables

I have C# ASP.Net Core Webapi application that makes some calculations for physical models. I have this project class: ...
  • 207
2 votes
0 answers
869 views

Ninject binding for Dbcontext

I have an asp.net web API and I am using EF6 to connect to a third party rest API which sells online game codes. We made a deal with the company so clients have to call my rest API in order to get the ...
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1 vote
1 answer
46 views

Update any controls' Text for the specified language [closed]

I would like to optimize the below code The only difference is the datatypes RadioButton, Label, and Button. Outside the method I have an loop that iterates over all the controls in the aspx-page. I ...
  • 119
1 vote
0 answers
75 views

Bookmark controller with IMemoryCache

I'm just doing a small hobby project to solve a little problem I have and I'm using it as a learning exercise for ASP.Net MVC 5, .Net Core 2 and Bootstrap. I'm using a nuget package that handles ...
  • 663
2 votes
1 answer
336 views

Encrypts using AES GCM for data with limited visibility and long rest

This is the third iteration of my venture on creating an encryption/decryption solution. I asked a question here, which led to this question here, which led to this answer here, which led me to ...
1 vote
1 answer
506 views

Encrypts using AES with random initialization vector meant for data with limited visibility and then long rest

I've done some research, reviewed countless SO questions that appeared similar, leading me to endless rabbit holes. My solution is working, but I don't like it. I want to create a random IV for AES ...
1 vote
0 answers
106 views

Helper class for ASP.net to return data from SQL server

My goal is to create a class that I can call from my webpages like this. Similar to a data access layer? ...
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0 votes
2 answers
66 views

The function to convert an object to a URL string

There is a function to convert object to the GET parameters for the ASP.Net controller. Is it possible to minimize the redundancy of the code, but not to the detriment of its readability? ...
  • 103
0 votes
1 answer
37 views

StringBuilder returing Web script

Task : With the page_type and currentpage param I made this code that returns the web script of the web page with active class on the current page through aspx behind code. Is there a better and a ...
-1 votes
1 answer
60 views

Check if mail contains a single page pdf and transfer to other folders

This code checks if a mail message contains a single page PDF attachment. If yes, it adds it to a processed list else rejected list. If mail can be processed, then it saves the attachment into a file....
  • 121
2 votes
1 answer
552 views

Displaying all application errors in a view

I'm learning ASP.NET Core with MVC pattern and I didn't find anything useful related to this argument. Actually I'm looking ...
3 votes
2 answers
120 views

Subscribe to Event form one service to another

In my architecture I have service layer, and for my question two relevant classes in this layer: UserManagementService EmailSenderService In first service there is method: ...
  • 231
7 votes
1 answer
7k views

asp.net core - get User at Service Layer

I use ASP.NET Core 2.1 and would like to fetch User at a service level. I've seen examples when HttpContextAccessor gets ...
2 votes
1 answer
12k views

Async await multiple API calls

I have an application that needs to contact a remote API many times to request information about various products. It was taking around a minute with synchronous programming. I adjusted all my methods ...
  • 419
7 votes
2 answers
194 views

ASP.NET HTML code generation, two approaches

I was asked to give more context. So here we go. We want to create some HTML in code behind to add an "add" and a "refresh" button to a grid view header column. Approach #1 does this using string ...
6 votes
1 answer
2k views

Proper way to display form with filtering in ASP.NET MVC 5

I want to create page when user can use form to display filtered data in table. Form has to remember its own state, because after every refresh it shouldnt change. So after submitting form I should ...
  • 309
5 votes
1 answer
1k views

Convert IEnumerable<Reads> to CSV

I have an IEnumerable of a view model that I need to convert to CSV and send back as a file response. I have written it out quite manually and I'm just seeking code ...
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