calendar_today 07 December 2008 19:33
Delegates in C# cause a fair amount of confusion, but with the introduction of LINQ to SQL and the profilic use of the Lambda Expression operator (=>) that it has foisted on an unprepared batch of beginners, an understanding of how these two items are related, together with Anonymous Methods becomes more important. Most definitions of Delegates that you find start off with comparing them to "function pointers in C or C++", which is great if you ever worked with those languages and understood them, but not helpful to new programmers. Here's my attempt at simplifying the various concepts.
calendar_today 28 November 2008 13:38
Many times, I have seen questions about where to obtain Charting controls for ASP.NET web applications, and until recently, the answer has always been to have a look at many of the third party offers that are available from the leading control development companies. That is until Microsoft released their Chart Controls for both Windows Forms and ASP.NET to work with .Net 3.5 SP1.
calendar_today 24 November 2008 07:41
I have now covered many of the basics involved in generating PDF files from ASP.NET using iTextSharp in the series of articles listed below. This article will look at additional ways to provide formatting to documents through the use of columns.
calendar_today 17 November 2008 12:30
The previous iTextSharp article looked at bringing images into a PDF file and working with them. Sometimes, however, you may want to draw shapes and lines within the PDF and not rely on images. iTextSharp includes a lot of functionality that covers simple drawing to quite complex shapes. This article gets you started. Previous articles are listed below:
calendar_today 07 November 2008 23:00
The seventh article in my iTextSharp series looks at working with images. This article builds on the previous six which are listed below.
calendar_today 03 November 2008 07:34
Tables will probably be one of the most used elements in PDFs generated from ASP.NET applications to provide the structure for documents such as orders and invoices. This overview is not an exhaustive examination of tables, but provides an introduction to working with them through iTextSharp, and builds on the previous articles in this iTextSharp series:
calendar_today 26 October 2008 11:01
Over the years, I have picked up and read many Beginners books that attempt to get someone started on the road to building web sites with ASP.NET. Nearly all of them assumed that their readers know more than they might. Some of them seem to assume that all readers are upgrading from one version of the .NET framework to another, while others assume that you already know about core web development technologies such as HTML, CSS, C# or VB etc. I well remember being frustrated with my first book, in that it didn't give me enough basic information to get started with web development, let alone web development with ASP.NET. Now, up steps Imar Spaanjaars, with his effort: Beginning ASP.NET 3.5 in C# and VB (Wiley/Wrox, ISBN: 978-0-470-18759-3).
calendar_today 23 October 2008 21:51
Interactivity within PDF documents is enabled though Anchors (links) and Bookmarks. Following earlier articles in my iTextSharp series, this particular contribution will introduce the basics of linking and bookmarking PDF documents created via iTextSharp. You may want to review earlier articles in this series, if you haven't already done so.
calendar_today 20 October 2008 08:32
Having already looked at how to create a PDF document with iTextSharp, set fonts and their styles and add text, this article turns its attention to lists. Ordered and unordered lists will be covered. You may want to review earlier articles in this series, if you haven't already done so.
calendar_today 18 October 2008 22:32
This is the third in a series of articles that looks at using the open source component, iTextSharp from within ASP.NET to generate PDFs. Just as HTML and ASP.NET provide containers for varying ampounts of textual content, iTextSharp offers the Chunk, Phrase and Paragraph classes. Before going on, if you would like to read earlier articles, they are:
calendar_today 15 October 2008 22:07
Following on from my introduction to iTextSharp, the free PDF utility that lets you work with PDF files within ASP.NET, this article looks at working with fonts in PDF documents that you create. If you haven't read the first article in this series, I recommend that you do so now.
calendar_today 12 October 2008 11:26
The .NET framework does not contain any native way to work with PDF files. So, if you want to generate or work with PDF files as part of your ASP.NET web application, you will have to rely on one of the many third party components that are available. Google will help you to find one that fits your budget, as well as a range of open-source free components. One of the free components is iTextSharp, which is a port of a well known Java utility, iText.
calendar_today 09 July 2008 09:19
Building on my previous article on importing text files of various formats to an Access database, here's how to do the same thing simply and efficiently with Excel files.
calendar_today 17 May 2008 09:48
There are a variety of options for connecting to Access databases within ASP.NET pages. This article attempts to cover the choices and offer recommendations for getting the best out of Access.
calendar_today 01 May 2008 11:06
This short article deals with the following common MS Access-related error messages:
calendar_today 01 May 2008 10:02
Quite often, I see questions asked about creating a simple login page for use with Access from people who don't want to take advantage of the built-in Forms Authentication framework within ASP.NET. The following samples show how relatively easy this is to accomplish.
calendar_today 30 April 2008 22:48
The unbelievably cryptic Operation Must Use An Updateable Query error is the bane of developers who are just starting out with Access and ASP.NET. You've done your code, plopped your database file in the App_Data folder (or at least, you should have done), and try to run a page that INSERTs or UPDATEs records, and it all stops dead. This brief article explains the cause of the error, and the steps required to stop it recurring.
calendar_today 05 April 2008 10:26
I was delighted to find out on April Fool's Day (?) that I have been awarded the 2008 Microsoft® MVP Award.
calendar_today 28 November 2007 13:19
There are a whole bunch of articles, blog entries and tutorials that seek to explain how SQL JOINS work. Some of them are excellent, and others are just confusing. The reason I am adding my go at trying to clarify JOINS to the mix is to highlight how proper use of the tools available to you can seriously reduce the chances of getting the JOIN syntax or type wrong. Since JOINS are all about how to relate data from one table to another, I thought it appropriate to illustrate the subject using Parents and Children (who may, or may not be related to eachother). So let's meet the families.
calendar_today 20 November 2007 22:54