Archive From January 2009

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.

Click to read more about Preventing duplicate User Names with ASP.NET and jQuery ...

Viewed 51972 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.

Click to read more about Ajax with Classic ASP using jQuery ...

Viewed 197819 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.

Click to read more about Cascading DropDownLists with jQuery and ASP.NET ...

Viewed 150902 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.

Click to read more about Handling JSON Arrays returned from ASP.NET Web Services with jQuery ...

Viewed 364165 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.

Click to read more about Upload and Crop Images with jQuery, JCrop and ASP.NET ...

Viewed 288130 times

118 Comments for this item

Recent Comments

Gfw 03/02/2017 09:48
In response to Free SSL Certificates On IIS With LetsEncrypt
I have used WinSimple for about the last 9 months - works great. One thing that you want to make of...

Ted Driver 02/02/2017 13:24
In response to Free SSL Certificates On IIS With LetsEncrypt
This looks great is you have command line access to your web server - what about those of us on Is...

Carl T. 06/11/2016 05:43
In response to Server.MapPath Equivalent in ASP.NET Core
Very succinct and easy to follow. Worked perfectly the first time for me. Thanks!!...

Manoj Kulkarni 04/11/2016 05:47
In response to Entity Framework Core DbContext Updated
Great post....

Sivu 19/10/2016 08:21
In response to Entity Framework Core TrackGraph For Disconnected Data
Oh that's very very very nice ! Thanks for the write up Mike, much appreciated for the taking the to...

Mark 12/10/2016 16:42
In response to ASP.NET Web Pages vNext or Razor Pages
Although "Web Pages" was removed from the roadmap, has it just been renamed to "Razor Pages"?...

Satyabrata 12/10/2016 09:20
In response to Entity Framework Core TrackGraph For Disconnected Data
Nice article. Please write more articles featuring ASP.Net web pages. Thank you...

Julian 26/09/2016 14:27
In response to Loading ASP.NET Core MVC Views From A Database Or Other Location
Fantastic, many thanks Mike! Had got half way down this road before finding your article - saved...

Abolfazl Roshanzamir 14/09/2016 05:36
In response to Loading ASP.NET Core MVC Views From A Database Or Other Location
Nice article. Thanke you so much ....

cyrus 02/09/2016 15:12
In response to ASP.NET Web Pages vNext or Razor Pages
I've got some news. As Damian stated in this link: https://github.com/aspnet/Mvc/issues/5208 “We...