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Server-side, client-side, code snippets, scripts, automation, best practices, proven approaches, tips & tricks...

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. Caching is the best way to boost web application performance and reduce load of both application (IIS) and data servers (SQL Server) ... read more

Recognize links in text content with jQuery

Find and replace URLs with anchor tags inside the text
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Very often when you are dealing with content from 3rd party like tweets from Twitter of Facebook posts and comments you might end up with some URL inside the content. On both Twitter or Facebook or any other social network, links inside text comments are replaces with anchor tags to those URLs. In order to keep the same user experience and make it more useful o your side where you are serving the content from the other party it is recommended that you do the same. ... read more

Enabling CORS only for specific domains in ASP.NET

Enable cross origin resquests only for certain domains in ASP.NET
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Cross-origin resource sharing (CORS) means that page from other domain can make request to some resource which is on other domain. For example, if you try to invoke some WEB API method which is running on different domain you will get exception in the script. By default CORS are disabled in ASP.NET bot you can easily enable them just by modifying web.config for IIS7 and newer versions pf IIS. ... read more

Detect when file download request is finished with jQuery

Figuring out when file download request completes with jQuery
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Recently I started a small free service app for extracting icons from application files .exe and .dll. It is called IconExtract and it is hosted at http://iconextract.dejanstojanovic.net/ It basically takes application file you submit, extracts icons and returns them zipped, so beside long running upload there is some processing on the back-end when file is uploaded as well. ... read more

Image thumbnail Html helper with image caching for the perforance

Creating image thumbnail with caching in MVC
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Creating image thumbnail on the fly is pretty easy in ASP.NET whether you are still using WebForms or MVC. There is even a methods introduced in .NET 4.5 framework for generating thumbnail image from a Bitmap class instance. You can easily create and action in a controller and generate and return thumbnail image on the fly ... read more

Reducing the number of Stored Procedures for the Application

Approach to reduce number of stored procedure for the application
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Nowadays, in the years of ORM, barely anyone thinks about stored procedures, but they are still there and accessing and reading data with ADO and SqlDataReader ist still the fastest way. Stored procedures are validated, parsed and compiled in SQL server, so these steps are not required to be performed versus plaint text query (which is what entity framework generates for accessing data). ... read more

Enabling GZip and Deflate compression from ASP.NET code

Compress your response on hosts where IIS compression is not supported
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HTTP compression is a simple way to improve site performance and decrease bandwidth, with no configuration required on the client side. If you test your website through Google PageSpeed Insights, HTTP compression will be one of the points recommended to be used to increase website performance. Luckily for .NET developers IIS supports it out of the box ... read more

Easier manipulation with IEnumerable objects

Useful extension methods for working with lists, arrays, dictionaries...
 
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Working with any collection which implements IEnumerable is pretty easy in C#, plus if you are using LINQ you can easily manipulate with collection data. Recently I was doing some filtering with some in-memory collections and I had to check whether one collection contains same elements as some other collection with elements of the same type. At first sight this looks pretty simple, but first problem is that collection elements might not be in the same order in both collection. ... read more

Super lightweight Data Access Layer returning models from ADO

Return strongly typed objects directly from stored procedure calls
 
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Entity framework is an awesome tool for working with database in .net, but sometime you have to get back to old fashion ADO for the performances. The bad thing is that as soon as you get back to ADO, you have to deal with SqlDataReader, DataTable and DataSet classes ... read more

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.NET

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SQL/T-SQL

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