Web Parts

The User Information List – a really valuable resource!

The SharePoint ‘User Information List’ is an often ignored hidden SharePoint list. When a user is added to a SharePoint site their details are copied into the list. It’s really easy to forget its there and it can be a valuable resource when developing in the sandbox. The other day…

SharePoint 2003 site in 2010 –‘Error on page’ when trying to add web parts

We recently came across this issue when migrating some SharePoint Portal Server 2003 sites to SharePoint 2010 for a client. The UI of the site had not been upgraded and was still showing the 2003 look and feel. When attempting to add web parts to the page using the ‘Edit…

SharePoint Web Part Properties Error when class not Serializable

  I came across an issue the the other day when adding a web part property to a SharePoint 2010 web part. My web part property was a List<> of a custom class and I was updating this property using a custom editor part. I packaged and deployed the web…

Cannot use an UpdatePanel in a SharePoint 2010 Sandbox Solution

I have been working on a SharePoint 2010 web part recently that uses an EditorPart to allow the users to set some properties for the web part. I wanted to use an UpdatePanel within the EditorPart to avoid postbacks and as I understood it the SharePoint 2010 masterpages already have…

SharePoint, AJAX UpdatePanel and SPWebPartManager woes

If you are having trouble getting your AJAX UpdatePanel to update properly in a SharePoint page or Web Part then you have come to the right place. You may already be aware that to get an UpdatePanel working in SharePoint you need to add a an additional function to your…