Category Archives: c#

Method not found: ‘Void Sitecore.ContentSearch.Diagnostics.AbstractLog.SingleWarn(System.String, System.Exception)’.

I struggled with this error in my development environment: Method not found: ‘Void Sitecore.ContentSearch.Diagnostics.AbstractLog.SingleWarn(System.String, System.Exception)’. at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, … Continue reading

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C# Set local folder for .net Core Windows Services

When developing .NET Core Worker Services, you can allow the service to run as Windows Service: The side effect is that the root folder changes from the local folder to the System32 folder, which means that any log files that … Continue reading

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Manipulating XML Google Merchant Data using C# and LINQ

Receiving a Google Merchant Data feed (also known as a Google Product Feed) can be fairly easily manipulated on import time using a little C# and LINQ. The feed is basically a XML RSS 2.0 feed with some added properties … Continue reading

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C# Azure TelemetryClient will leak memory if not implemented as a singleton

I noticed that my classic .net web application would leak memory after I implemented metrics for some background tasks. Further investigation showed that my MetricAggregationManager would not release its memory. Since one of the major changes was the implementation of … Continue reading

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Remove duplicates from XML feed

Apparently XML isn’t dead yet, and today I received a Google Product Feed in the RSS 2.0 XML format. The feed was full of duplicates and my job is to remove them: As you can see, “Product 100” appears twice. … Continue reading

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.NET Core Worker Services with Application Insights and Serilog

The .NET Core Worker service is yet another tool in the .NET toolbox. They are perfect for background processing like reading from a queue or making health checks. They are cross-platform (of course) and they can run on docker containers, … Continue reading

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System.DllNotFoundException: Unable to load DLL ‘sni.dll’ or one of its dependencies: The specified module could n ot be found. (0x8007007E)

This message happens when deploying my .NET Core 3.1 application to production (when compiling the code to an .exe file), but not when running the application locally. It turns out, that Dapper is missing a reference to System.Data.SqlClient. Adding the … Continue reading

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Sync Sitecore content to external database

The legal department of the client requested that we sync parts of the Sitecore tree to an external, system-versioned temporal table, so that we have a full audit trail of changes to these items including before-and-after values. Fear not, this … Continue reading

Posted in .net, c#, Sitecore 5, Sitecore 6, Sitecore 7, Sitecore 8, Sitecore 9 | Tagged , , , , , , | Leave a comment

C# Get expiry timestamp from JWT token

JWT tokens (or Json Web Tokens) are an open-standard the defines a way to transmit information between 2 parties in a secure manner. Identity Server 4 uses JWT as a security token. These tokens have an expiry timestamp, and if … Continue reading

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Azure App Configuration – Getting the connection string from appsettings.json

Azure App Configuration is a services that provides a central place to manage application settings, and it provides cool features like feature flags and auto refresh of settings when they are changed. To access Azure App Configuration from your .NET … Continue reading

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