Update: WarmupScript

A long time ago, I posted a program which will hit all your sites. With parameters you can specify to hit all sites within a sitecollection. This program has been updated. You can not omit a start Url, and specify “Farm” as parameter. This way, all sites in all sitecollections in all webapplications in all… 🙂 will be warmed up. The warmup will use a HttpRequest to query all homepages.

What to know about the feature folder

One of the first things I used to tell guys new to SharePoint development is: Never ever name the folder of your feature “Feature1”. If you create a solution with WSPBuilder, or did some time ago with VS 2008, you have to rename the folders immediately! This is how a typical SharePoint project looks like, if you create features. I guess most of us have used the mighty WSPBuilder ( for developing with SharePoint.


Here is another “watch out” for using the SharePoint object model.SPUrlUtility.CombineUrl(web.Url, string.Empty) The line above will throw an exception, as CombinUrl doesn’t like empty strings. 🙂

StaticName != InternalName

Recently I was trying to fetch a SPField from a SPWeb object. I had SharePoint 2010, so I decided to use the new SPFieldCollection.TryGetFieldByStaticName() Method. You can imagine how surprised I was, that I couldn’t get the field I was looking for. What do we learn? Well, the StaticName of an SPField is not necessarily the InternalName! Here is a link to the MSDN about SPField.StaticName:

Watch out for ContentTypeBindings

If you don’t know ContentTypeBindings, take a short look at: “Content type binding enables you to provision a content type on a list defined in the onet.xml schema.” So we can assign content types to newly created lists. That’s cool 🙂 The ContentTypeBinding feature can, of coarse, contain multiple content types which are bound to multiple lists. Like this:<Elements xmlns=""><ContentTypeBinding ContentTypeId="0x0100yourGuid"ListUrl="Pages"/><ContentTypeBinding ContentTypeId="0x0100anotherGuid"ListUrl="Pages"/><ContentTypeBinding ContentTypeId="0x0100yetAnotherGuid"ListUrl="Lists/YourList"/></Elements> There is however, a limitation!

Check, if you are within a modal dialog

By now, you probably know that the modal framework from SharePoint 2010 is a great thing 🙂 In case you need to find out if the context is within a modal dialog, you can query for the URL parameter “IsDlg”.if(Page.Request["IsDlg"] !=null) { //within a modal dialog} else{ //not within a modal dialog}

Empty Admin Recycle Bin items

What is it? Usually the size of the recycle bin is not relevant. But on development machines, you don’t want lots of files in there, which make your databases grow without actually used data. What do you do? Go to the recycle bin, click on “Site Collection Recycle Bin”. The two stages of the recycle bin can be managed independently. The two views on the left let you switch between the first- and second stage.


With MOSS 2007 or SharePoint Server 2010 you can use the PoraltSiteMapProvider of the Microsoft.SharePoint.Publishing.dll assembly to retrieve cached listitems.<span style="color:#606060" id=lnum1 1:</span PortalSiteMapProvider ps = PortalSiteMapProvider.WebSiteMapProvider; <span style="color:#606060" id=lnum2 2:</span var pNode = ps.FindSiteMapNode(web.ServerRelativeUrl) as PortalWebSiteMapNode; <span style="color:#606060" id=lnum3 3:</span var query = new SPQuery <span style="color:#606060" id=lnum4 4:</span { <span style="color:#606060" id=lnum5 5:</span Query = "<Where><Neq><FieldRef Name='ID' /><Value Type='Counter'>0</Value></Neq></Where>" <span style="color:#606060" id=lnum6 6:</span }; <span style="color:#606060" id=lnum7 7:</span SiteMapNodeCollection quoteItems = ps.

CKS:EBE 3.0-Enhanced Blog Edition 3.0

Like many other blogs running SharePoint, my blog uses the EBE to add more functionality to the default SharePoint blog. And since I am one of the developers of the EBE 3.0, I’m glad that we announce the release of the next release. Version 3 brings along many new features and improvements of already implemented features. New Features *Ability to theme wiki pages *Ability to export post to PDF *Localization (French, Spanish)


Did you know you can fetch an item by its UniqueId even if it is in the recycle bin? You can even update its data while it is already recycled. I wonder if there is a scenario, where you would want to modify an already recycled ListItem…

SharePoint 2010 SDK

The Microsoft SharePoint 2010 Software Development Kit (SDK) contains conceptual overviews, programming tasks, samples, and references to guide you in developing solutions based on SharePoint 2010 products and technologies. You can grab it here: The download contains the SDK for SPF and SPS. No need to download two separate files anymore. The SharePoint Developer Center can be found here:

The IWebPartField Interface versus the ASP.NET Lifecycle

A Webpart receives a filter value through the IWebPartField interface. The example over at MSDN was simple and clean. So I adopted the code to my Webpart. A common scenario would be to create controls based on the received filter value. E.g. query a list for the passed filter value, and display the item from the query.Problem From the ASP.NET Lifecycle we know how to deal with controls. Create them in CreateChildControls, assign values in OnPreRender and let them being rendered in RenderContents.

Modify Overwrite Policy for an EventLog created by an EventLogInstaller

Developing a Windows Service is a common task. Creating an EventLog for this service also is a common practice. The EventLog can be created with a ServiceInstaller (a class which inherits from System.Configuration.Install.Installer). This is how an Eventlog can be added during the installation with a custom Installer class:publicInstaller() { Installers.Add(newEventLogInstaller { Source ="EventLogSource", Log ="EventLogName"}); The EventLogInstaller class does not allow to set the overwrite mode. You can change the overwrite mode after the log has been created, if you use the Committed Event.