.NET – Jun Kim

How to Implement Dependency Injection to WPF Application

November 8, 2023November 8, 2023Jun Kim

Add the NuGet packages to the project Add Microsoft.Extensions.DependencyInjectionMicrosoft.Extensions.Hosting Add Microsoft.Extensions.Hosting Modify App.xaml.cs file

.NET, Clean Coding

How to Measure execution time in C#

July 11, 2023July 11, 2023Jun Kim

This Requires System.Diagnostics name space.This might need to be converted from milliseconds to other unit. 2. By using TimeSpan

.NET, Clean Coding

To use Attribute routing

April 21, 2023April 21, 2023Jun Kim

This is how to use .NET API Attribute Routing. We can write action method to accept just parameter with query string or object. This is another way of passing parameter.…Continue readingTo use Attribute routing

.NET, Uncategorized

How to show the JSON Result with 400 error Code.

March 22, 2022March 22, 2022Jun Kim

I tried to find the way to return 400 error code with JSON error result. I think this is the best way and easy to implement. Create the custom class…Continue readingHow to show the JSON Result with 400 error Code.

.NET, Clean Coding, Database

Update entity with Auto Mapper

March 11, 2022March 11, 2022Jun Kim

When we try to update the existing date with Entity Framework, you might to following steps. In above case, application will get following error. To resolve this error, this .AsNoTracking()…Continue readingUpdate entity with Auto Mapper

.NET, Database

Automapper Aftermap “method not found” exception

March 11, 2022March 11, 2022Jun Kim

When you tried to add AutoMapper to IOC container or ASP .NET Service, you may or not encounter following error. Mostly not. When I had this, I spent so much…Continue readingAutomapper Aftermap “method not found” exception

.NET, Clean Coding

String vs string in C# code

February 2, 2022February 2, 2022Jun Kim

What is the difference between String and string in C# code? I reviewed one of our team members code and realized that he changed some existing code from string to…Continue readingString vs string in C# code

.NET, Clean Coding

C# Difference between Const & Readonly

July 30, 2021Jun Kim

.NET, Clean Coding

Code First Database Migration with .NET core EF SQL server

January 21, 2021January 21, 2021Jun Kim

These steps will show how to create or update Database with Code First Approach using .NET Core EF Framework. Install Packages from Nuget. You need to install following packages Microsoft.EntityFrameworkCore…Continue readingCode First Database Migration with .NET core EF SQL server

.NET, Clean Coding

How to create API Project with .NET Core CLI

January 13, 2021January 13, 2021Jun Kim

Open the command line and go to the directory that you want to install. Execute Following command dotnet -hNOTE: You can see the list of template that you can create…Continue readingHow to create API Project with .NET Core CLI

Category: .NET