asp.net - James Flower

James Flower

asp.net

A collection of 16 posts

Handling Cascading Deletes in Entity Framework Core

entity framework core

Handling Cascading Deletes in Entity Framework Core

Cascading deletes in Entity Framework Core (EF Core) simplify data management by automatically removing related entities when their parent entities are deleted. However, when multiple paths exist between parent and child entities, cascading delete conflicts occur which then pose a challenge for maintaining data integrity. Scenario Let’s look at

Entity Framework Core Exception when Querying JSON Objects with an ID Column

Entity Framework Core Exception when Querying JSON Objects with an ID Column

The Entity Framework Core 7 release saw the addition support for storing entities in a JSON format, without having to use serializers. This can be useful for a variety of situations, especially when data will only be retrieved as a single set. The Exception While using this feature I recently,

Containerising ASP.NET 7 Web Apps as Docker Images for Linux ARM with GitHub Actions

Containerising ASP.NET 7 Web Apps as Docker Images for Linux ARM with GitHub Actions

Docker is a great way to publish and deploy .NET applications, without having to worry about dependencies being missing on the host machine. With the boost in popularity of ARM, it’s also becoming increasingly likely that the application may end up running on an ARM based processor. However, with

Star Trek or Star Wars – Binary Classification using ML.NET

Star Trek or Star Wars – Binary Classification using ML.NET

I have been looking for an opportunity to try out machine learning and recently had a change. Given my background with ASP.NET, using ML.NET seemed the clear choice as I am already familiar with C# and the .NET ecosystem. To try out ML.NET, I decided to make

Using Azure SignalR Service in Static Web Apps (SWA) Managed Functions

Using Azure SignalR Service in Static Web Apps (SWA) Managed Functions

I recently migrated my YouTube Remote project from ASP.NET 4 to use serverless computing, such as Azure SignalR Service and Azure Functions with Static Web Apps. This aim of the YouTube Remote is to have a “display” which shows a YouTube video, and a “remote” to have play and

Setup Gitpod for a .NET 6+ Web App

Setup Gitpod for a .NET 6+ Web App

Gitpod is a service which provides development environments in the cloud, but a .NET web app will need some extra configuration to make it accessible when running from a development workspace. You can use Gitpod by logging in with an account from a source control provider (such as GitHub or

Supporting Multiple WS-Federation Authentication Schemes in ASP.NET Core

Supporting Multiple WS-Federation Authentication Schemes in ASP.NET Core

ASP.NET Core allows you to add support for multiple authentication schemes, such as social auth providers or WS-Federation. This support can be added with or without ASP.NET Identity Core. Users can then use these schemes to authenticate with your web application. While adding support for social authentication providers

Using ngrok with IIS Express and ASP.NET Core

Using ngrok with IIS Express and ASP.NET Core

Sometimes it can be helpful to quickly make the version of a project which is running on your development machine available to others. This could be for webhook integrations, demos, or some other reason. One of the tools you can use to achieve this is ngrok. ngrok creates a secure

Changing Query String Values in ASP.NET MVC

Changing Query String Values in ASP.NET MVC

Recently I was trying to update a query string by adding or updating a parameter for URLs generated in a partial view. I found an excellent example for achieving this by setting route data here however this didn’t preserve current query string values in the URL. I’ve extended

Disabling an ASP.NET MVC input control

Disabling an ASP.NET MVC input control

I love ASP.NET MVC. It is a great framework to get web apps quickly built. However using the built in HtmlHelper methods on your views isn’t without its issues. An example of this is when trying to disable a HTML input control which has been built using HtmlHelper.

Fixed/Sticky Headers on ASP.NET GridView using jQuery

Fixed/Sticky Headers on ASP.NET GridView using jQuery

The GridView control in ASP.NET Web Forms is an extremely useful and quick way of getting data out to the user in a nice tabular format. It does have one weak spot though and that is some of the tags it uses when doing this. Specifically, not putting the

Strongly Typed Data in ASP .NET Web Forms

Strongly Typed Data in ASP .NET Web Forms

In ASP .NET Web Forms you’ve previously had to use strings to specify which properties you’d like to output when databinding, which would probably end up looking something like the following. <asp:templatefield headertext="Last Name"> <itemtemplate> <asp:literal runat="

Send E-mail through Microsoft Exchange using .NET

Send E-mail through Microsoft Exchange using .NET

Recently I needed to send an e-mail using Microsoft Exchange Server from an ASP .NET Web App. My first attempt involved using the classes in the System.Net.Mail namespace however I quickly realised this wasn’t the way to be going about it as I had very little luck

Using a RequiredFieldValidator on a DropDownList in ASP .NET

Using a RequiredFieldValidator on a DropDownList in ASP .NET

In most applications today drop-down lists default to a “Please select..” option with some form of validation to ensure the user makes their own selection. In ASP .NET web forms this frequently results in a drop-down list being created using code similar to that displayed below. <asp:DropDownList ID=

How to allow HTML content in ASP .NET MVC

How to allow HTML content in ASP .NET MVC

Sometimes in web development, you need to provide an easy-to-use editor for non-technical users to input or change content where extra styling is required such as making text bold or italic. However unless you use (or code yourself) an editor which uses some form of BBCode you’re going to

ASP .NET AJAX Control Toolkit Reorder List control and LINQ

ASP .NET AJAX Control Toolkit Reorder List control and LINQ

The ASP .NET AJAX Toolkit is quite a useful and yet under-used set of controls. However they can also quickly lead to bizarre issues and worse performance than normal if they are not properly understood or used correctly. This issue is compounded when you take into consideration that quite a