Archive

Archive for April 2015

Generate sitemap.xml on the fly in Umbraco CMS
Simple sitemap.xml Umbraco handler
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Sitemap.xml is important component of SEO which is responsible for indexing your website. Search engine robots are generating indexes of your website based on this file. Since content in Umbraco website is dynamic, it makes not so much sence to have static sitemap.xml file for indexing your content... read more
Fast image search in .NET using C#
Searching images on the file system with C#
 
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Searching files on the file system is pretty easy using System.IO namespace classes. The problem is if you need to youery file system with some things which are related to a file, but not related to file system itself... read more
Benefits of binary serialization in C#
Manipulationg with object instances using binary serialization in C#
 
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By default object instances in .NET are never "trully" clonned. Instead .NET is doing shallow copy of instances which means if you have one variable which is object instance and you assign that variable to other variable, both of them will point the same instance of that object. Basically you created two pointers of the same object instance. ... read more
Scraping website content using HtmlAgilityPack
Build you own website crawsler for extracting data from websites
 
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HTML is a markup language same as XML, but still there are differences which make dealing with them a bit different. Basically HTML is a strict structure in terms of node sets and attribute sets, but in general more documents online are not exactly following the proper structure since browsers usually manage to deal with rendering out the document in UI... read more
Dealing with duplicate rows in SQL Server
Finding and cleaning up duplicate rows in SQL Server tables
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In case your data in tables needs to have unique constraint based on more than one value in the row, the proper solution for that would be a composite key. ... read more
Microsoft IIS and ASP.NET MVC caching techniques
Ways to cache data and response to improve page performance
 
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Of course, the best way to make you web application work fluent is to write the code properly and design the architecture of application to meet requirements and certain load depending of the type of application. But even though architecture is good, you can always improve performance by reducing processing in application code itself... read more
Block referrer spam request on ASP.NET application
Block unwanted spam traffic from your wesbite
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Recently I was checking my Google Analytics for this website I spotted some referrer urls that were completely unknown to me. When I tried to visit the url of the referrers I got a lot of commercial and pop-ups after few redirects. It looked really suspicious, so I tried to find a little bit more about these. ... read more