.NET Tips and Tricks

About a year ago i had to architucture some web application with a very rich client side UI.

ASP.NET was an easy choise for a server side code, but what about client side ?
The heavy viewstate, endless event handlers and infinity number of server side requests just to make the GUI  friendly – well, it just didn’t sound as a proper way to do it.

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I’m pretty sure all of you know the WebRequest and it’s derived class HttpWebRequest.
And what a marvelous property both of them have – the TimeOut.

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Let’s say you have to parse some HTML, find all images or some other DOM elements make some changes/optimizations and save the result. What can you do ?

Well, i needed something like that a few days ago and after Googling for couple of hours I ran across this this great library called HtmlAgilityPack.

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This one is a great c# interview question – short and simple, but tricky.

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A couple of days ago i found a great framework called AForge.NET.

AForge.NET is a C# framework designed for developers and researchers in the fields of Computer Vision and Artificial Intelligence – image processing, neural networks, genetic algorithms, machine learning, robotics, etc.

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It is very important to be able to dynamically control the behavior of .NET applications and to keep track of some of the aspects of the application (i.e. how the application is performing, what errors are produced during runtime, how the application performs at peak times, how to dynamically alter the behavior of the application, etc).

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This is a very simple question with a not so simple answer…

Forget for a second about .NET.
If someone asks you how much is 1.000025 – 0.000025 your answer will probably be “1″ and correct. An easy question, right ?

Now, let’s go back to .NET and check if our calculations are correct.

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The following are two simple questions related to C# inheritance.
Please try to give an answer without executing the code, otherwise where is the fun part ?
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This is a C# class which allows you to create Web and WinForm captcha control.
The class is very configurable, so finaly you could create a Captcha that suits your needs.
You can hold the Captcha secret key as a session or an encrypted cookie variable.

Coming soon…