A collection of articles and tutorials on web development with ASP.NET by Mike Brind

Latest Entries

Using the HtmlAgilityPack to parse HTML in ASP.NET

30 April 2015 13:26

HTML General HTML5

Hardly a week goes by without someone asking a question in the ASP.NET forums about parsing HTML for one purpose or another. Mostly, the questions are couched in terms of 'finding values' or similar, prompting responses from the community that recommend one regular expression pattern or another, treating HTML as a string of text with no structure or rules. In fact, HTML is a structured document format with a set of very clearly defined rules, which means that it can easily be parsed given the right tool. My favourite tool for parsing HTML is the HtmlAgilityPack.

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Viewed 78252 times

8 Comments for this item

Entity Framework Recipe: Storing And Managing Time

23 April 2015 13:19

ASP.NET MVC Entity Framework

This post explores the options available to you when your application requirements include managing and storing time using the Entity Framework. Specifically, I am thinking of durations of time, such as the time required to complete some kind of task, not the time part of a date. Relevant examples might include storing the length of a movie, or the preparation time required for a recipe.

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Viewed 9269 times

3 Comments for this item

7 C# 6.0 Features That Every ASP.NET Developer Should Know About

14 April 2015 13:25

C# ASP.NET 5

Visual Studio 2015 introduces a completely new version of ASP.NET, but it also includes version 6 of the C# language. Previous new versions of C# have heralded substantial changes like the introduction of async and await in version 5, dynamic in version 4, LINQ in version 3 and so on. There are no major feature changes or introductions in version 6, but there are a number of syntactical improvements that you are likely to use on a daily basis. Here's a rundown of them.

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Viewed 40219 times

19 Comments for this item

Sessions in ASP.NET Core

07 April 2015 13:39

ASP.NET MVC ASP.NET 5 ASP.NET Core

ASP.NET Core is being designed so that your application is only dependent on features that it actually needs. This is achieved in large part by creating a composable framework, where the developer opts in to non-essential features - a number of which are baked in to traditional versions of ASP.NET. One of the features that this applies to is Session State. This article looks at how to obtain and use session state in ASP.NET Core applications.

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Viewed 81863 times

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ASP.NET 5 Middleware, Or Where Has My HttpModule Gone?

31 March 2015 13:22

ASP.NET MVC ASP.NET 5

ASP.NET 5 has been largely rewritten from the ground up, and incorporates some radical changes when compared with previous versions of ASP.NET. One of the biggest changes is in the HTTP Pipeline. This article looks at how those changes impact the design and registration of plug and play components that used to be represented by HttpModules.

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Viewed 47291 times

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How To Send Email In ASP.NET MVC

24 March 2015 13:21

ASP.NET MVC

This article takes a comprehensive look at the business of generating and sending email from an ASP.NET MVC application. It covers the most common use cases as well as some advanced scenarios. It also explores some of the more common errors that arise from attempting to generate and send email programmatically from an ASP.NET MVC site.

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Viewed 213731 times

49 Comments for this item

ASP.NET 5 By Numbers

16 March 2015 13:20

ASP.NET MVC ASP.NET Web Pages ASP.NET 5

There's a lot of confusion surrounding the numbers relating to the impending release of the next version of ASP.NET. This post takes a look at the main ones and seeks to explain their significance.

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Viewed 11798 times

4 Comments for this item

Error Handling in ASP.NET Razor Web Pages

10 March 2015 13:07

ASP.NET Web Pages WebMatrix

Bang! An unhandled exception occurred during the execution of the current web request. And that's it - your visitor is met with the yellow screen of death and they are left wondering what they did wrong. You might not even be aware of what's just happened - unless your visitor can find some way of alerting you, oh, and they bother to do so. That's the problem with run time errors; the code worked fine when you ran it on your machine. But then along came a user and they tried to do something you didn't anticipate and broke your site. So what should you do about this?

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Viewed 19246 times

1 Comment for this item

ASP.NET MVC DropDownLists - Multiple Selection and Enum Support

03 March 2015 13:26

ASP.NET MVC

My original article about Drop Down Lists in ASP.NET MVC has proven to be among the most popular on this site, amassing over a third of a million views since it was published 5 years ago. This article builds on the original by looking at using drop down lists for multiple selections, and the helper that was introduced in MVC 5.1 to support enumerations as a source of select options.

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Viewed 208562 times

16 Comments for this item

Migrating From Razor Web Pages To ASP.NET MVC 5 - Model Binding And Forms

24 February 2015 14:51

ASP.NET MVC ASP.NET Web Pages

If you have built sites with the ASP.NET Razor Web Pages framework, you might want to look at migrating them to ASP.NET MVC at some point. This tutorial is the last in a series of three that explores how you do that by taking a step by step approach to migrating the WebMatrix Bakery template site to ASP.NET MVC 5. Previous tutorials in the series have looked at the roles of the View and Controller, and the data access and view model aspects of the Model. This final part covers model binding and form posting. A download (c. 24MB) featuring the completed application is available on GitHub.

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Viewed 35952 times

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Migrating From Razor Web Pages To ASP.NET MVC 5 - Data Access And View Models

18 February 2015 13:16

ASP.NET MVC Entity Framework ASP.NET Web Pages

If you have built sites with the ASP.NET Razor Web Pages framework, you might want to look at migrating them to ASP.NET MVC at some point. This tutorial is the second in a series of three that explores how you do that by taking a step by step approach to migrating the WebMatrix Bakery template site to ASP.NET MVC 5. Along the way, each of the core parts of MVC are discussed by way of an introduction to the framework. The tutorial is divided into three parts. The first part looked at the roles of the View and Controller. This part looks at the M in MVC, the Model. Specifically, it features data access and view models. The final part will cover model binding and form posting. A download (c. 24MB) featuring the completed application is available on GitHub.

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Viewed 14635 times

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Migrating From Razor Web Pages To ASP.NET MVC 5 - Views and Controllers

16 February 2015 13:33

ASP.NET MVC ASP.NET Web Pages

If you have built sites with the ASP.NET Razor Web Pages framework, you might want to look at migrating them to ASP.NET MVC at some point. This tutorial is the first in a series of three that explores how you do that by taking a step by step approach to migrating the WebMatrix Bakery template site to ASP.NET MVC 5. Along the way, each of the core parts of MVC will be discussed by way of an introduction to the framework. The tutorial is divided into three parts. This first part looks at the V and C part of MVC - View and Controller. The M or Model is covered in the second and third parts. A download (c. 24MB) featuring the completed application is available on GitHub.

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Integrating Web API with ASP.NET Razor Web Pages

03 February 2015 13:26

ASP.NET Web Pages WebMatrix Web API

ASP.NET Web API is the recommended way to build RESTful services over HTTP when using the ASP.NET stack. This article looks at incorporating Web API into an existing Razor Web Pages site, and provides a brief introduction to Web API itself.

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11 Comments for this item

MVC 5 with EF 6 in Visual Basic - Working With Files

27 January 2015 13:26

VB.Net ASP.NET MVC

This tutorial explores how to upload files in an ASP.NET MVC applications and how to use Entity Framework to store them in a database. It builds on a series of 12 that teach you how to build MVC 5 applications using Entity Framework for data access and Visual Basic. This tutorial does not have a counterpart in the original tutorial series, produced by Tom Dykstra and Rick Anderson ( @RickAndMSFT ) which was written using the C# language. A C# version is available here.

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ASP.NET MVC 5 with EF 6 - Working With Files

27 January 2015 13:19

ASP.NET MVC

This tutorial explores how to upload files in an ASP.NET MVC application and how to use Entity Framework to store them in a database. It builds on a series of 12 featuring the fictitious Contoso University that teach you how to build MVC 5 applications using Entity Framework for data access. The original tutorial series was produced in C# by Tom Dykstra and Rick Anderson ( @RickAndMSFT ) of Microsoft. This tutorial is coded in C#. As with the previous tutorials, I have produced a version that uses the Visual Basic language. It is available here.

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47 Comments for this item

Recent Comments

Thomas 05/03/2018 00:59
In response to I'm Not Writing A Book On Razor Pages
There's a typo on this page: = true)] should be [BindProperty(SupportsGet = true)]...

Rolf Herbert 04/03/2018 19:25
In response to I'm Not Writing A Book On Razor Pages
So is MS deprecating razor Web Pages..? Is it dead..? I wish they would stop killing things so its...

Borut 17/02/2018 12:59
In response to I'm Not Writing A Book On Razor Pages
Mike, is it possible that Web Pages and Razor Pages "live" together in one web application? I a I...

hrboyce 09/02/2018 04:44
In response to I'm Not Writing A Book On Razor Pages
Mike, First thanks for doing this but I have to ask, any chance you would consider converting one of...

aziz sallam 07/02/2018 10:18
In response to I'm Not Writing A Book On Razor Pages
u are a great man...

Satyabrata Mohapatra 31/01/2018 11:36
In response to I'm Not Writing A Book On Razor Pages
This is a great news!!!! Thanks...

tangdf 30/01/2018 07:25
In response to I'm Not Writing A Book On Razor Pages
=> { o.ConfigureFilter(new IgnoreAntiforgeryTokenAttribute()); }); The extension method does...

Obinna Okafor 30/01/2018 04:02
In response to I'm Not Writing A Book On Razor Pages
Thank you very much. I would like to see a project built from scratch using Razor Pages. And it show...

rachida Dukes 31/10/2017 13:52
In response to Customising Identity in Razor Pages
Thanks again for this wonderful tutorial. I followed all the steps in this section called: Adding...

Rachida 31/10/2017 12:06
In response to Customising Identity in Razor Pages
Thanks very much for this wonderful tutorial, it helped a lot....