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

Latest Entries

Consuming Feeds And Web Services In Razor Web Pages

05 February 2013 19:55

ASP.NET Web Pages WebMatrix

Increasing numbers of businesses are making services and data available to third parties via Web Services or feeds. Data format and protocols can vary significantly across service providers, so here is a look at how to manage the consumption of a number of popular formats delivered through REST and SOAP services within a web site built using the ASP.NET Web Pages framework.

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Practical Recursion in ASP.NET Web Pages with WebMatrix

22 January 2013 14:44

ASP.NET Web Pages WebMatrix Razor

Recursive methods are those that call themselves, and they can be applied to solve a number of common practical problems, particularly ones that involve the management and display of hierarchical data. This article explores some of those scenarios and shows how to design recursive helpers and functions that can be used in Web Pages sites.

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Exporting The Razor WebGrid To Excel Using OleDb

07 January 2013 20:38

ASP.NET Web Pages WebMatrix WebGrid

This article looks at how you can provide your users with the ability to export the contents of a Razor Web Pages WebGrid to an Excel file using OleDb.

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SignalR And Knockout In ASP.NET Web Pages Using WebMatrix

27 December 2012 20:17

ASP.NET Web Pages WebMatrix Razor

SignalR is a library that simplifies the creation and management of persistent connections between web servers and clients. This facilitates the development of applications that can display updates to data held on the server in real-time. Chat applications are the most obvious beneficiaries of this technology, but line-of-business applications that need to report availability to users can benefit too. Here, I look at extending the canonical SignalR chat example to incorporate a "who's typing" feature, and I also extend my previous Knockout example to use SignalR.

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Exporting The Razor WebGrid To PDF Using iTextSharp

20 December 2012 13:31

iTextSharp ASP.NET Web Pages WebMatrix Razor WebGrid

This article looks at how you can provide your users with the ability to export the contents of a Razor Web Pages WebGrid to a PDF file using the popular free PDF library, iTextSharp.

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Exporting The Razor WebGrid To Excel

17 December 2012 20:17

ASP.NET Web Pages WebMatrix Razor WebGrid

This article looks at how you can provide your users with the ability to export the contents of a Razor Web Pages WebGrid to an Excel file.

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Enhancing The WebGrid With Sort Arrows

14 December 2012 19:24

jQuery ASP.NET Web Pages WebMatrix Razor WebGrid

The Web Pages WebGrid offers sorting capability out of the box. However, it's not always obvious to the user on which column the grid data is being sorted at any one time, nor the direction in which it is being sorted. The convention is to provide arrows in the column header to act as a clear visual cue. This article looks at a three ways in which you can enhance your grids with sorting arrows.

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Inline Editing With The WebGrid

13 November 2012 10:37

jQuery ASP.NET Web Pages WebMatrix Razor WebGrid

Unlike the Web Forms GridView control, the Web Pages WebGrid doesn't offer anything by way of inline editing capability. This article looks at one approach to solving that requirement through the addition of a sprinkling of jQuery.

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Cleaner Conditional HTML Attributes In Razor Web Pages

23 October 2012 21:27

ASP.NET Web Pages WebMatrix Razor

Every so often, you will want to conditionally render HTML attributes or their values within your Razor Web Pages based on the outcome of some runtime logic. Often, the logic required to manage this can become messy and lead to unnecessary spaghetti code. This article explores a few common scenarios and provides some solutions, as well as introducing a nice new feature that was released as part of Razor v 2.0.

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The SimpleMembershipProvider, Secure Passwords And The Crypto Helper

27 September 2012 13:39

ASP.NET MVC ASP.NET Web Pages WebMatrix

Some people have questioned the security of the ASP.NET SimpleMembershipProvider's storage of passwords. The cause for concern seems to stem from the fact that the PasswordSalt field in the standard membership table is unused by the SimpleMembershipProvider, whereas it is used by, for example, SqlMembershipProvider. So what is the PasswordSalt field, and why should the fact that it isn't used raise an eyebrow?

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HTML5 Form Helpers For WebMatrix

20 September 2012 14:56

Extension Method ASP.NET Web Pages WebMatrix HTML5

It's an odd thing: WebMatrix 2 is lauded for its support of HTML5, but the Web Pages framework doesn't include any helpers for the new HTML5 form input types such as email or color. It's fair to say that support among browsers for the new inputs is patchy at the moment, but with barely a week flying past without a new version of one or other browser being released, it won't take long for that to change. So in the meantime, if you prefer to use helpers, you have to write your own for rendering HTML5 forms.

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Cannot use a lambda expression as an argument to a dynamically dispatched operation

18 September 2012 08:08

LINQ ASP.NET MVC ASP.NET Web Pages WebMatrix

Since the introduction of the Web Pages framework, ASP.NET has been making use of the dynamic type introduced in C# 4.0. Along with that comes some new error messages which at first glance don't make a lot of sense - mainly because they are unexpected. I have already looked at how dynamics do not support extension methods, and a recent question in the ASP.NET forums illustrated another way in which the dynamic type can catch you out.

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Optimising ASP.NET Web Pages Sites - Bundling And Minification

15 September 2012 17:05

ASP.NET Web Pages WebMatrix

ASP.NET 4.5 saw the introduction of new features for improving the performance of web sites. Delivered within a new library called System.Web.Optimization, bundling and minification enables you to combine multiple JavaScript or CSS files into one bundle, and to minify them thereby reducing the number of HTTP requests that browsers have to make, reducing the size of the files, and improving performance of the site overall, especially over slower (read 3G) networks.

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WebMatrix - jQuery Cascading Dropdown Lists

08 September 2012 09:56

jQuery ASP.NET Web Pages WebMatrix

I have looked at cascading dropdown lists with WebMatrix previously, but the approach I featured demonstrated the use of jQuery Templates. At the time, the jQuery Templates project looked promising, but since then, the jQuery team have decided not to take them beyond beta stage. So the reason for this article is to illustrate a more "traditional" jQuery approach to managing cascading dropdown lists when developing ASP.NET Web Pages using WebMatrix.

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ASP.NET Web Pages - Creating Custom Validators

31 August 2012 14:33

ASP.NET Web Pages WebMatrix

Version 2 of the Web Pages framework includes a new validation framework. Included are a number of specific validators that cover common scenarios such as validating for presence, data type or range. It may be however, that you want to create your own custom validator to test for something that isn't covered by the existing validators, or to combine multiple tests in one composite validator. Fortunately, the Web Pages team have made the validation system extensible so that you can create your own validators.

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