Welcome to imar.spaanjaars.com

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Welcome to the personal web site of Imar Spaanjaars where I write about software development with a focus on Microsoft web technologies
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Measuring the Size of an Image with VB.NET

Published 17 years ago

It can be useful to be able to retrieve the Height and Width of an image file you have on disk. The following snippet shows you how to do that:

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Measuring the Size of an Image with C#

Published 17 years ago

It can be useful to be able to retrieve the Height and Width of an image file you have on disk. The following snippet shows you how to do that:

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Almost Christmas Holidays....

Published 17 years ago

Pfff, just another week to the Christmas Holidays. Really looking forward to it. Having lots of free time, hanging around with friends and family, no work pressure......

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"Upgraded" to ASP.NET 2.0 a.k.a. Whidbey

Published 17 years ago

Today I installed an early alpha release of ASP.NET 2.0, also known as Whidbey on my server. Yeah, yeah, I know. I shouldn't install beta stuff on my production servers, but I just couldn't resist it. I guess I'll have to live with the consequences (I am typing this message directly from the SQL Server Enterprise Manager because my Login functionality broke down ;-) )

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Howto Create a Hit Counter Using a Text File in ASP.NET 1.x

Published 17 years ago

If you have a live Web site on the World Wide Web, you may be interested in how many people are visiting your site. You can of course analyze the log files of your Web server but that information is usually difficult to read. The log files contain information for each and every request a visitor has made to your site, including resources like images, Flash movies and so on. This makes it near impossible to extract information about individual users. It would be a lot easier if you could count the number of individual users that have visited you since you started your site. It would also be useful if you could see the number of users that are currently browsing your site.

This article will show you how to accomplish these two tasks by storing the hit counters in static variables in the Global class and in a text file using code in the Global.asax file. This article extends the ideas from a previous article where the values of the counters were just stored in static variables. By writing the counters to a file you can maintain their values, even when you restart the Web server.

There is also a Classic ASP version of this article available.

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New Hit Counter Article

Published 17 years ago

The first article in a series of three, describing how to create Hit Counters in ASP.NET is finished now.

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Howto Create a Hit Counter Using the Global.asax File in ASP.NET 1.x

Published 17 years ago

If you have a live Web site on the World Wide Web, you may be interested in how many people are visiting your site. You can of course analyze the log files of your Web server but that information is usually difficult to read. The log files contain information for each and every request a visitor has made to your site, including resources like images, Flash movies and so on. This makes it near impossible to extract information about individual users. It would be a lot easier if you could count the number of individual users that have visited you since you started your site. It would also be useful if you could see the number of users that are currently browsing your site.

This article will show you how to accomplish these two tasks by storing the hit counters in static variables using code in the Global.asax file. The disadvantage of this method is that this information is lost when you restart the Web server. Two other articles on this site demonstrate how to store this information in a text file and in a database, so the value for the counter will be preserved when you restart your Web server.

There is also a Classic ASP version of this article available

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Worked on The Site Again

Published 17 years ago

Today I finally had the time again to work on the site.

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How Do I Check If a Number Is Even Or Odd in ASP?

Published 17 years ago

Use this snippet to check whether a given number (passed in as numberToCheck is even or odd.

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How Do I Select Duplicate Records from a Database Table

Published 17 years ago

This T-SQL snippet allows you to select duplicate records from a database table. The example assumes that the column Id is used to determine whether a record has a duplicate. If multiple columns determine whether a record has a duplicate or not, simply expand the SELECT list and the GROUP BY clause.

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