When I started developing for SharePoint two years ago I was thrown in a big black hole and started to develop webparts by hands on experience. In the first couple of weeks I found out that your webpart could inherit from System.Web.UI.WebControls.WebParts.WebPart or Microsoft.SharePoint.WebPartPages.WebPart. I never found out the big difference between those two, also…
A few days ago I had to develop a TimerJob that deletes a large number of items from a SharePoint list. My first idea was to iterate trough the list items and then call the delete method of the items that needed to be deleted. Doing this was a major performance set back because it…
One of our most annoying issues we came across in one of our projects was the problem that SharePoint kept prompting us to login when we were opening a document. This problem ruined the user experience, so we began a search for possible solutions. In our environment the user could access the portal trough two…
Did you ever have a problem with your my site? Well we did! The customer wanted a Citrix webpart on their my site. I did not recommend it but still they wanted it. The performance off the my site fell down the roof and we had to disable the my site so we could do…
For a project we were working on we created a web application with a wrong application pool Identity. We wanted to set this correctly and we thought we could just change the application pool Identity in IIS, but we were wrong. What happens was that the application pool identity was changed back by SharePoint in…
In one of our development environments we came across a very annoying error in SharePoint, when we were using a custom site definition: “This Page has been modified since you opened it. You must open the page again.” This error was getting very annoying because we came across it on a lot of site, and…
On several sites there are postings about tools you could have on you SharePoint development VPC. That’s why I thought lets post what I have got on my development VPC. If you do not have a Virtual PC with SharePoint you can take a look at the following posts of Tony Zink. He made 20…
One of the most annoying things I came across when I was developing for SharePoint 2007 is the error: “An unexpected error has occurred”. You can get rid of this by disabling the custom errors. You can do this in two steps: Step 1: Change <SafeMode MaxControls=”200″ CallStack=”false” > to <SafeMode MaxControls=”200″ CallStack=”true” > Step…