26 January 2016 07:39
A couple of threads have been posted recently to the ASP.NET forums complaining that values posted to ASPX files are mysteriously disappearing. This post looks at the most likely cause and provides some solutions.
Viewed 244 times
16 December 2015 07:37
This is the last in a series of articles that explore how to optimise ASP.NET web sites for search engines. Each article in the series concentrates on a specific topic and looks at the features and tools available to ASP.NET developers to help make sites search engine friendly and thereby improve rankings and click throughs from search results. This article explores how to ensure that search engines are aware of all of the content you want them to crawl and how to inform them when the location of that content is no longer valid.
Viewed 774 times
07 December 2015 08:57
This is the second in a series of articles that explore how to optimise ASP.NET web sites for search engines. Each article in the series concentrates on a specific topic and looks at the features and tools available to ASP.NET developers to help make sites search engine friendly and thereby improve rankings and click throughs from search results. This article will looks at some best practices concerning your site's URLs and how to make them more user friendly for search engines and humans alike.
Viewed 1044 times
01 December 2015 07:53
This is the first in a series of articles that explore how to optimise ASP.NET web sites for search engines. Each article in the series concentrates on a specific topic and looks at the features and tools available to ASP.NET developers to help make sites search engine friendly and thereby improve rankings and click-throughs from search results. This first article will look at how to present your site content to search engines in the most optimal way.
Viewed 1842 times
09 October 2015 08:53
This short article examines the baffling issue that a lot of people seem to encounter when attempting to send multiple files to the client from an ASP.NET application, and provides the solution.
Viewed 4362 times
17 July 2015 13:43
Every time I need to work with the contents of text-based files in an ASP.NET application I invariably start off thinking about using the various static methods on the
System.IO.File class to extract the text and then some string manipulation or Regex to parse the content into some kind of structure. And, just in time, I remember the
TextFieldParser class that hides itself away in the
Microsoft.VisualBasic assembly. The purpose of this article is to introduce this component to a wider audience, but also to serve me as an aide-mémoire in terms of the basic usage, which I always have to look up.
Viewed 1852 times
07 July 2015 13:49
There are countless articles that demonstrate exporting ASP.NET GridViews to Excel. They pretty much all do the same thing - they use the RenderControl method to generate HTML and then save it to a file with a .xls extension. This kind of works, but the resulting file is actually an HTML file masquerading as an Excel file. And that has two flaws: it cannot be used as a data source because providers complain that it is not in an acceptable format, and users of Office 2007 or newer are always confronted with a warning about the contents of the file when they try to open it, causing confusion, suspicion or annoyance. This article shows how to use the free, open source library to export the content of a GridView control to a genuine .xlsx file that doesn't suffer these problems.
Viewed 18403 times
30 June 2015 14:47
This article allows me the opportunity to demonstrate a feature of my newest favourite open source library: EPPlus. EPPlus is a .net library that reads and writes Excel 2007+ files using the Open Office Xml format (xlsx). This fantastic, easy to use (and free) library enables the use of Excel in ASP.NET applications without the need to install the Access Database Engine (ACE) or having to mess about with unsupported Office Automation on the web server (assuming you can even get Office installed there). Prompted by a rash of similar questions that appeared on the ASP.NET forums recently, this article looks at reading the contents of an uploaded Excel file without saving it, and displaying the data in a Web Forms GridView.
Viewed 14405 times
07 August 2014 08:34
A perennial question on the ASP.NET forums concerns how to schedule regular tasks as part of a web application. Typically, the requirement is to send emails once every 24 hours at a particular time each day, but it could actually be anything from tweeting on a schedule to performing maintenance tasks. Equally typically, half a dozen members on the forum dive in with recommendations to install Windows Services or schedule batch files with the Task Scheduler - regardless of the fact that most web site owners are not afforded such privileges as part of their shared hosting plan.
Viewed 89795 times
23 June 2010 07:43
Include files within classic ASP are about the only way to achieve some measure of code-reuse within frameworks that offer little or nothing by way of composition or inheritance. Judging by the number of questions in forums, there are still a lot of people moving across from classic ASP who are puzzled as to how to approach replacing include files within ASP.NET. A number of articles illustrate individually how to do so for site-wide layout reasons, including widgets, reusing global functions, or actually including the content of a file. However, I haven't been able to find one resource that brings all these together, hence the purpose of this article.
Viewed 132523 times
22 May 2010 19:41
A common question in the forums is how to highlight key words found in search results. Here's an extension method that does that, both for partial matches, or whole word matches.
Viewed 44133 times
06 December 2009 19:46
Should you store files and images in the database or the filesystem in an ASP.NET application? With SQL Server this is a dilemma, with both approaches having their pros and cons. When it comes to Access, the decision is much easier to make. Because an Access database is restricted to 2Gb, it makes more sense to store files in the file system. However, sometimes, you may not have the choice. If you have to use the database, here's how.
Viewed 39640 times
25 November 2009 09:09
When it comes to protecting files from unauthorised downloading, the vast majority of articles offer solutions that involve mapping common file types (.pdf, .txt, .doc etc) to ASP.NET within Internet Information Services. However, often in a shared hosting environment, you don't have access to IIS and the hosting company will not agree to providing such mappings for you, so what do you do?
Viewed 114024 times
10 January 2009 09:09
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.
Viewed 330765 times
31 December 2008 09:32
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.
Viewed 46557 times
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