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Maintaining same session with separate web requests from C# code

Create separate web requests with the same server session
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Recently I started a small project for image optimization which relies on public image optimization services available online. For now it supports Yahoo SmushIt and Compressor.io services, but it will be extended over the time. Project is open-source and hosted at GitHub https://github.com/dejanstojanovic/ImageOptimization. ...read more

Getting social network access token from C# backend

Acquire Facebook or Google+ access token from C# code
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Most popular social networks such is Facebook and Google+ are providing authentication for web applications with fancy javascript pop-ups. However this approach might not work in all browsers and most likely not on every device. For example this approach does not work on iPhone or iPad because browser itself does not allow pop-ups...read more

Honeypot implementation in ASP.NET MVC

Honeypot bot detection implementation in MVC
 
 
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You can find a bunch of articles on internet about HONEYPOT implementation on web pages, but in short it is a replacement for CAPTCHA anti-bot security. In CAPTCHA scenario, user needs to enter hardly recognizable characters in order to prove that he is not a bot trying to submit data. Sometime that is really annoying but it is a way to filter automated posts created from bots. ...read more

Change Request.Form collection on the fly

How to modify Request.Form collection
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Data from form are sent to backend (whether code behing of page in WebForms or Controller Action in MVC) in Request.Form property. It is oragnized as collection of name and value and can be easily access by name. In some extreme cases, you need to make some modifications to posted form data. ...read more

Access auto property backing field with reflection

Access property fields of auto property in C#
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Using reflection you can easily access any property, filed, methods, pretty much anything of any type in .NET. Reflection is never the most elegant way to do something, but sometime you just have to do it. In older versions of C#, to declare a simple property in a class you would have to declare a private field which will be exposed by the property outside the class ...read more

Bypass SSL certificate validation

A workaround quick solution when your SSL certificate expires
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It is a common thing that some of your application functionalities depend on an external HTTPS endpoint. However, renewal of SSL certificate for the external party is out of your control and you have to rely on the third party that certificate will be renewed on time...read more

Filesize to proper display string

Display size of file in the proper maner
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How many times you had to display file size on your web page? Pretty much every time you might have the same issue with recalculating size to KB or MB. I caught myself doing this for so many times over and over, so finally I decided to write a piece of code for that. ...read more

The fastest way to export data to Excel

Export data to Excel in ASP.NET C#
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It is not so rare that you have to provide some sort of export of your data stored in database. I have a feeling that clients really like to have that functionality, probably because they are more comfortable with Excel than with any other tool. First thing that might pop to your mind is to add a reference to Office library, but that would require that you have Office on the hosting machine which might not be the case as most of hosts do not have it. ...read more

Simple object mapper using reflection

Copy property values from one object to another using reflection
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Dealing with models and POCO classes in MVC sometimes require to map properties from one object to another because they have some properties of the same name and type. This also can be a case when you are loading a model class from some other source and you need to transform it to your type with some additional properties, but also a bunch of properties with values from the source object instance. ...read more

Faking browser client in HttpWebRequest

Introduce your request to server as a browser request
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Using HttpWebRequest to fetch some data in your code from web is the easiest way to do it. However some web locations have restrictions to all only requests which come from browsers. Performing a normal HttpWebRequest will return 403 status code (HTTP 403 - Wikipedia) which means forbidden access...read more

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SQL/T-SQL

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Umbraco CMS

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PowerShell

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