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

Latest Entries

Creating a Tag Cloud using ASP.NET MVC and the Entity Framework

01 June 2009 07:26

ASP.NET MVC Entity Framework

A Tag Cloud is a visual depiction of Tags or categories on a web site. CSS is used to set the variable font size of each Tag to illustrate its relative frequency or popularity within the site. As part of the migration of my site to ASP.NET MVC, I am introducing one to replace the Categories navigation that appears on the left hand side of each page, which contains a count of items within each category.

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Viewed 47154 times

16 Comments for this item

A Degradable jQuery AJAX Email Form for ASP.NET MVC

29 May 2009 15:58

AJAX ASP.NET 3.5 jQuery ASP.NET MVC

Pretty much every web site on the Internet features a form for users to provide feedback via email to site owners. This site is no different. Migrating to ASP.NET MVC requires a slightly different approach to that used by Web Forms development, so this article looks at one way to implement a web site contact form using the MVC framework and jQuery that degrades nicely. AJAX functionality is said to be "degradable" if a way is provided for the process to work, even though users don't have Javascript available to them.

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Viewed 81598 times

26 Comments for this item

ASP.NET MVC Partial Views and Strongly Typed Custom ViewModels

11 May 2009 07:06

ASP.NET MVC Entity Framework

I'm in the process of rewriting mikesdotnetting.com using the ASP.NET MVC framework. It's an interesting experience, in that this is my first exposure to MVC. The first stumbling block I encountered was how to pass data in a satisfactory way to Partial Views which only represent part of the data that is to be displayed in the View. Since I struggled to find clear guidance on this, I thought I would share a way to do it.

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Viewed 332077 times

27 Comments for this item

Many ways to communicate with your database using jQuery AJAX and ASP.NET

04 May 2009 18:39

AJAX ASP.NET 3.5 jQuery

I've recently done a series of articles that feature calling databases via AJAX using jQuery. In pretty much all of the articles, I have used Web Services as my data access mechanism. Judging from the comments that some of the articles have attracted, this has caused a little confusion. But Web Services is just one mechanism. Page Methods and simple ASPX files are two more. And finally, as pointed out by a commenter, Benny Halperin, ASHX files are yet another option. In this article, I shall review each of these approaches.

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Viewed 868676 times

49 Comments for this item

Build your own Whois Lookup with ASP.NET and jQuery

14 April 2009 22:39

AJAX Javascript ASP.NET 3.5 jQuery

IP addresses can reveal a lot about your web visitors. For an ecommerce site, the owner or registrant of the visitor's IP address can be very useful information. You could paste each visitor IP address into one of the many free IP Lookup sites available, but that can be time-consuming and tedious. Or you could build your own lookup. This article shows how this can be done pretty quickly.

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Viewed 79682 times

9 Comments for this item

Lazy Loading jQuery Tabs with ASP.NET

02 March 2009 07:30

AJAX Javascript ASP.NET 3.5 jQuery

This article looks at efficient use of jQuery tabs when displaying data. Specifically, it covers how to lazy-load data, so that it is only accessed and displayed if the tab is clicked.

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Viewed 142368 times

30 Comments for this item

Persisting the position of jQuery Draggables in ASP.NET

04 February 2009 22:29

AJAX Javascript ASP.NET 3.5 jQuery

It was bound to happen - you knock up an article on jQuery draggables one day, and the next, someone like Jim ;-) comes along and asks about persisting the position of the dragged item across Postbacks, or even sessions. I suppose it's my fault - I mentioned using draggables in a previous life in the context of saving the position, so it's only fair I share how that's done.

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Viewed 39348 times

16 Comments for this item

Experimenting with jQuery Draggables and ASP.NET

01 February 2009 08:12

Javascript ASP.NET 3.5 jQuery

One of the keystones of modern AJAX-enabled web sites is Drag and Drop. This article looks at the current state of Draggables that form part of the jQuery UI Library.

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Viewed 53699 times

6 Comments for this item

Preventing duplicate User Names with ASP.NET and jQuery

24 January 2009 18:18

AJAX Javascript ASP.NET 3.5 jQuery

It's a common problem: you have a registration form, but you want to prevent user names or other values from being used more than once. You need a user-friendly way to prevent duplicate values being submitted. This is where the simplicity of jQuery excels.

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Viewed 52189 times

24 Comments for this item

Ajax with Classic ASP using jQuery

17 January 2009 23:13

Classic ASP VBScript AJAX Javascript jQuery

My simple article on Ajax with Classic ASP is one of the most popular on this site. So I thought it's about time I updated it to show how to use jQuery to Ajaxify a Classic ASP page. Since I did that, the jQuery version became even more popular but needed to be brought up to date. This latest version uses a couple of suggestions that have been provided by commentors to improve the code. I have also added a download which contains all the code needed to run the samples.

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Viewed 198960 times

15 Comments for this item

Cascading DropDownLists with jQuery and ASP.NET

13 January 2009 08:47

AJAX Javascript ASP.NET 3.5 jQuery

Cascading DropDownLists or dependent dropdowns are the signature dish for AJAX applications. I spent quite a while fiddling to try to get some to work, before stumbling across a life-saving jQuery plugin that makes working with DropDownLists on the client-side a breeze. This article shows how it all works, and makes use of the WebService I introduced in my previous jQuery article.

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Viewed 151609 times

16 Comments for this item

Handling JSON Arrays returned from ASP.NET Web Services with jQuery

10 January 2009 09:09

AJAX Javascript ASP.NET 3.5 jQuery ASP.NET Web Forms

There appear to be many articles showing how to use jQuery with ASP.NET Web Services around, but the vast majority of them illustrate the use of PageMethods that return a single value - typically "Hello World!" or the current date and time. Not much use in the real world, where you may more often need to call a service that returns a collection of complex objects. Here are a couple of examples that look at playing with more than just simple values.

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Viewed 366529 times

33 Comments for this item

Upload and Crop Images with jQuery, JCrop and ASP.NET

05 January 2009 13:54

C# AJAX Javascript ASP.NET 3.5 jQuery

I got given jQuery In Action for Christmas. By nature, I'm kind of a late adopter, and I'm already regretting this fact. jQuery has been around for some time, and I wished I had looked at it sooner. It's a fantastic library that really simplifies Javascript development, and is already attracting a goodly number of plug-ins. JCrop is one such, and while it hasn't yet reached version 1.0, it is remarkably easy to use as a web based image cropper. Here's how to put jQuery, JCrop and a FileUpload control together to allow users to upload images and crop them.

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Viewed 290012 times

118 Comments for this item

Create a Google Site Map with ASP.NET

31 December 2008 09:32

ASP.NET 3.5 ASP.NET Web Forms

Over Christmas, I had a bit of spare time, so I decided to add some functionality to this site. One of the things that I added was the ability for people to post comments about specific articles, and you will see that a form has been added at the end of this article. The other thing I have been meaning to get round to is to add a Google Site Map. I believe I have created my site to be as friendly to Google's bots as possible, but there is no harm in submitting a site map to guarantee that Google knows about all the pages I want indexed.

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Viewed 51909 times

14 Comments for this item

A DataBound Javascript News Ticker for ASP.NET

25 December 2008 14:18

Javascript ASP.NET 3.5

It's funny how requirements come along like buses in the ASP.NET forums - you suddenly get the same thing asked for by two or more people in quick succession. Recently, a couple of people asked for help creating a Javascript ticker, like the one at the top of the BBC News site, which displays a selected number of headlines drawn from a database. I had adapted the code from the BBC site to create a similar widget that displayed the most recent threads in a message board on an old Classic ASP site some time ago. It's about time I dusted it off and updated it for use in an ASP.NET application.

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Viewed 50417 times

28 Comments for this item

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