Debugging an AutoMapper profile
How to find out what s going wrong when you get an exception from AutoMapper, and it doesn't tell you the problem
Latest posts
Copilot doesn't seem to have a very high opinion of me!
A few examples of my rather poor experience with Copilot
404 when trying to access images uploaded after the app was built
Why my uploaded images weren't being displayed in my Blazor app, and how I got around the problem, learning something new along the way.
![Microsoft.EntityFrameworkCore.Model.Validation[10625] The foreign key property 'ShortlistItem.ShortlistId1' was created in shadow state because a conflicting property with the simple name 'ShortlistId' exists in the entity type](/images/25-01-06-shadow2.jpg)
Microsoft.EntityFrameworkCore.Model.Validation[10625] The foreign key property 'ShortlistItem.ShortlistId1' was created in shadow state because a conflicting property with the simple name 'ShortlistId' exists in the entity type
Having struggled with EF Core adding shadow properties for navigation relationships, I finally found out what it's doing and (more importantly) how to fix it.
Loading data in a Blazor web app, without multiple database or API calls
The Blazor web app template introduced in .NET8 has some excellent features, but also has some subtle gotchas that can cause performance issues if you don't handle them.
This post explains a utility class I wrote that will keep data access to a minimum when dealing with both server and client rendering, as well as caching data between navigations around the client code.
Thread-safe, async MVVM-style messaging in Blazor
An updated version of my old message broker that allows MVVM-style messaging to be done between Blazor components.
Unlike the previous version, this one is naturally async and thread-safe
Using the EF Core FromSqlRaw method in a Telerik Blazor grid
I wanted to speed up the performance of a Telerik Blazor grid. This post documents an extension method I wrote to enable this using EF Core. This was at least as fast (if not faster) than the previous method i wrote based on Dapper, and has some significant extra features
Hmm, maybe EF Core isn't so bad after all!
Last month, I explained how we had achieved a significant performance improvement by using Dapper to pull the data from the database, rather than using EF Core.
Whilst showing this to a colleague, he reminded me that EF Core has a FromSqlRaw method that does pretty much the same thing. Assuming that EF Core would be slower than Dapper, I didn't give it much thought at the time. However, being a compulsive tinkerer, I decided to take a closer look.
This post explains my findings, and what I did with them