.NET Examples Archives - Trystan Lapinig-Wilcock

Implement Unit of Work with Generic Repository Pattern in C# ASP.NET Core

.NET Examples / July 9, 2023

The unit of work and generic repository pattern are essential tools that can be seamlessly integrated into any ASP.NET Core project. Their versatility and applicability make them invaluable for us as developers aiming to enhance code organization, scalability, and reusability. In this tutorial, we will explore the implementation of unit of work with the generic …

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How to Save PDF and Image Files to Database as Byte Array in C#

.NET Examples / May 17, 2023

In this blog post, we will be exploring how to save PDF and image files to a SQL Server database. We will build a form to capture the file from the user, before saving the data to the database. We will also demonstrate fetching the files from the database and displaying them. Regardless of whether …

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How to Use ChatGPT in C# – Writing a ChatGPT client

.NET Examples / March 23, 2023

ChatGPT was not yet publicly available whilst writing the last blog post, in which we built an image generator using OpenAI’s DALL·E 2 model. But alas, ChatGPT is now publicly available. So in this blog post, we’ll explore how to use the ChatGPT API in C# and walk through the process of creating a ChatGPT …

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Implement an Audit Trail in Entity Framework Core 6.0

.NET Examples / December 5, 2022 / 3 Comments

In this blog post, we will be implementing an automatic audit trail of changes made to our entities. Our audit trail will automatically track and record when an entity is added, when an entity is modified, and when an entity is deleted. As well as recording when an entity is modified, our change audit will …

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When to use IEnumerable vs List vs IQueryable

.NET Examples / May 26, 2022

In this example, we’ll be exploring the differences between the List, IEnumerable and IQueryable types in C# and when we should use each one. All of these types can be used as a container for records. But which one should we use, and why? In this article, we will explore what each type is used …

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How to create and implement a custom logging provider in C# Blazor

.NET Examples / May 9, 2022

In this blog post, we’ll go through how we implement a custom logging provider in C#. I will be using a Blazor server project for the application. However, this example is not Blazor specific and can be applied across many .NET project types. There are many third-party logging frameworks that exist already, some of which …

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How to get the current user in Blazor C#

.NET Examples / February 6, 2022

This blog post will firstly outline how to determine if the user is logged in to a Blazor Server C# application. If so, we will then look at how to get the details of the user that is logged in, including the user Id, user email, user name and all other fields of the default …

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Cascading dropdowns in Blazor C#

.NET Examples / September 29, 2021

Blazor is a web framework introduced by Microsoft that allows developers to create web applications using C# and HTML. It allows for rich UI elements to be created without the need for any JavaScript. I thought I would demonstrate this by creating a popular form element that many may have found themselves previously writing in …

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C# 9 – immutability in application development, new record type and type omission

.NET Examples / June 2, 2021

In late of 2020 Microsoft released .NET 5. This is Microsoft’s first step towards unifying their development platform in which they hope developers will be able to use a single set of APIs, languages and tools across different types of applications. These include web, mobile, games, IOT and cloud. With the release of .NET 5 …

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