Category Archives: .net

Using C# HttpClient() from Sync and Async code

The .NEt 4.5 C# System.Net.Http.HttpClient() is a very nice http client implementation, but can be tricky to use if you (like me) are not a trained asynchronous programming coder. So here is a quick cheat sheet on how to work … Continue reading

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Sitecore Rule – Personalize based on any field in any facet in your Contact

This Sitecore Personalization Rule was developed by my colleague Martin Rygaard with the purpose of being able to personalize on any field in any facet on a contact. STEP 1: CREATE THE CONDITION Create a new “Condition” below /sitecore/system/Settings/Rules/Definitions/Elements/??? The text … Continue reading

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.NET Session state is not thread safe

When working with the .NET session state you should bear in mind that the HttpContext.Current.Session cannot be transferred to another thread. Imagine that you, from the Global.asax would like to read the SessionID each time a session is started: To … Continue reading

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Webhook Event Receiver with Azure Functions

Microsoft Azure Functions is a solution to run small pieces of code in the cloud. If your code is very small and have only one purpose, an Azure Function could be the cost effective solution. This is an example of … Continue reading

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Sitecore ContentSearch – Get items from SOLR or Lucene – A base class implementation

Reading items from Sitecore is pretty straight forward: And it is fast, unless you need to retrieve items from many paths, or need to retrieve every child of a certain base class. In these situations you resolve to using the … Continue reading

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Sitecore user:created event not fired on Membership.CreateUser

Sitecore have since 7.5’ish fired events each time you manipulate the users in the .NET Membership database: But I noticed that the user:created event was not fired. This is because I call the .NET Membership provider directly: This call to … Continue reading

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Sitecore ContentSearch Get Latest Version

The Sitecore ContentSearch API allows you to index content in either .NET Lucene or SOLR, dramatically speeding up retrieval of content, especially when querying items that are scattered across your content tree. Content retrieved from the ContentSearch API is not … Continue reading

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Sitecore Caching – Clear caches individually

The Sitecore caching engine is a simple yet powerful tool where Sitecore not only stores it’s own data for fast retrieval, but allows you to store your own data of any kind. Sitecore have a built in overview of the … Continue reading

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Sitecore General error when submitting contact – Another contact with the same identifier already exists

In Sitecore when creating your own contacts you can get the following exception: 10604 10:16:27 ERROR General error when submitting contact. Exception: System.InvalidOperationException Message: Another contact with the same identifier already exists. Source: Sitecore.Analytics.MongoDB at Sitecore.Analytics.Data.DataAccess.MongoDb.MongoDbDataAdapterProvider.SaveContactWithIdentifier(IContact contact, ContactSaveOptions saveOptions) at … Continue reading

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Sitecore Advanced Configuration in .config files

Sitecore allows you to create configuration sections in /configuration/sitecore/ that consists of hierarchies of configurations including lists, and it will even help you serialize the configuration to object instances. Observe the following real life example of a configuration I created to … Continue reading

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