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Get Sitecore placeholders and rendering hierarchy from a Sitecore item
This article explains how you can get the hierarchy of placeholders and render them to your screen for debugging or documentation purposes. The Sitecore rendering engine allows you to place sublayouts...
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Sitecore.Data.ID The call is ambiguous
In Sitecore you cannot compare an ID with NULL; it will produce the following error: The call is ambiguous between the following methods or properties: ‘Sitecore.Data.ID.operator ==(Sitecore.Data.ID,...
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Sitecore Code Generator and O/R mapper
You probably have never used a code generator for the same reason I never used a code generator: It was not developed by yourself It’s not generating the code you need You cannot extend it with the...
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Stream Sitecore media items to HttpResponse
Here is a small tip for you who is doing API’s based on Sitecore. How to get an item from the Sitecore Media Library and stream it to the HttpResponse of a page. This is an example of an .ashx...
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Unable to serialize the session state. In ‘StateServer’ and ‘SQLServer’ mode
When switching the sessionState mode of your web project from InProc to SQLServer you might encounter this error: Exception: System.Web.HttpException Message: Unable to serialize the session state. In...
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Sitecore 7 create item and update index at the same time
With Sitecore 7, the Sitecore index (based on Lucene.NET) have greatly improved, thus making the index even more usable. One thing you should know though, is that when you add items to Sitecore using...
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URL Rewrite and Sitecore
The Microsoft URL Rewrite module is an ISS extension that allows you to rewrite one URL to another using regular expressions. The extension is like the Sitecore aliases on steroids, and is especially...
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Sitecore users custom profile properties
Sitecore is using the standard .net security framework. This makes it easy to setup custom profiles on users, and to add custom profile properties. To do so, do the following: STEP 1: ADD A PROFILE...
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Sitecore.Web.Authentication.c__DisplayClass5.b__2(Ticket ticket) +52
When logging into the Sitecore client you can run into this exception: [NullReferenceException: Object reference not set to an instance of an object.]...
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Disable Sitecore SPEAK dialogs
The new Sitecore SPEAK dialogs introduced with Sitecore 7.x are known to cause difficulties for some. Some of the issues are technical or configuration related, others are related to the fact that many...
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Add text to asp:ValidationSummary (C#)
This trick is especially useful when you have custom code to be executed after your form have been submitted, and still wishes to communicate an error the same way as you communicate form validation...
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Improve Sitecore Membership provider performance 2-20 times
The Sitecore Membership provider is built on top of the default .NET membership provider. The .NET membership provider is not known to be the fastest provider available. Sure, if you have a few...
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Sitecore and xDB – Setting up MongoDB on your developer machine
With Sitecore 7.5, Sitecore introduces xDB – the new MongoDB based DMS database. But before you say “oh no, yet another technology I have to deal with”, you should know that working with MongoDB is...
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Measuring Sitecore performance with HighResTimer
The HighResTimer is a Sitecore feature that has been around since Sitecore 4. It’s a simple timer that allows you to very precisely measure time in microseconds by using the underlying OS timers. It is...
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Sitecore EventQueue deadlocks – how to solve them and how to avoid them
The Sitecore 7.0+ EventQueue mechanism can in some rare occurrences cause a deadlock to occur. You will notice that when it happens, your Sitecore Shell will come to a complete halt, the DMS becomes...
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Sitecore Job Viewer – see what Sitecore is doing in the background
This simple .aspx page has become one of my most used tools when working with Sitecore. It’s a job viewer, displaying which jobs are running and which jobs are finished: Sitecore Job Viewer A Sitecore...
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Sitecore 8 and Engagement Plans
With the introduction of the xDB in Sitecore 7.5, Sitecore also changed the analytics API. The VisitorManager have been replaced by the Tracker. The Tracker is one of the base API’s for Sitecore the...
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Cannot cache phrase for invariant language – Sitecore 8
When adding dictionary items to the CORE database in Sitecore 8, this error can occur: Message: Cannot cache phrase for invariant language. Source: Sitecore.Kernel at...
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All my Sitecore items are called __Standard Values
After I upgraded to Sitecore 7.5, all of my Sitecore items are called “__Standard Values“. This happens in the “Danish” language, not the “English”: All items are called __Standard Values Don’t worry,...
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All my Sitecore items are called __Standard Values – The fix
In the previous post i described how a tiny error in Sitecore made you believe that all of the Sitecore items are called __Standard Values. The error occurs in the Danish language because Sitecore...
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