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.
449 questions
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Custom ASP.NET Core CookieAuthenticationHandler
I wrote a CustomCookieAuthenticationHandler because I don't like the way CookieAuthenticationHandler.HandleForbiddenAsync() ...
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361
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Implementing Generic Enumeration Classes in Domain Layer
I'm developing an ASP.NET Core application using .NET 8, following the Onion Architecture. In our domain model, we use Enumeration classes instead of traditional ...
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Map domain entities using AutoMapper.ProjectTo and clean architecture approach
We have a mid-size project. Two projects in solution, API and Domain.
Domain contains services with business logic. We don't use repositories. Just call DbContext directly from services (that's fine ...
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How to avoid null Values in a .NET 6+ ASP.NET project [closed]
I'm currently exploring multiple options to get rid of null values in my .net web api applications.
Let's say, that we have the following Project:
...
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Validating a web crawlers page visits with a decorator
I am writing a crawler that is going to end up in production and I was trying to come up with a way to validate its page visits. It scrapes asp.net pages so each scraping process involves a few ...
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Convention based OpenApi schema generation for dotnet and NSwag
So I am getting tired from adding the same [ProducesResponseType] attribute on my WebAPI controller methods over and over, and I thought there must be an easier, ...
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Insert huge data from csv file in .Net framework 4.7.2
I need to insert about 500k - 1 million data lines from a CSV file. The time of getting the reports list and insert to database by using SqlBulkCopy is very good (...
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logging in using cookie authentication/authorization in asp.net C#
How safe is Cookie based Authentication/Authorization in ASP.NET C#? Take a look at the example below, don't worry about password hashing, All this code does is that it takes a username and a password ...
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Building ASP.Net control from JSON Data
I am working project where I need to build ASP.net control base on JSON data. I am using this method below to get all the data into class. I as using FirstOrDefault ...
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1k
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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. ...
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67
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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 ...
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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,...
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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 ...
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199
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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 ...
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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.
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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.
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.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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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....
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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:
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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 ...
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124
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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 ...
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1k
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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
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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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2k
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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:
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4k
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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 ...
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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.
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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?
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4k
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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 ...
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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.
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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 ...
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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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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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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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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 ...
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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 ...
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1k
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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 ...
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118
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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?
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143
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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#:
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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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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:
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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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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 ...
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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 ...
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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 ...
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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?
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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 ...
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67
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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....
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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 ...
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220
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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: ...
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