Update to “Upload Files and Images” field type
I’ve fixed a bug with my [Custom Field – Upload Files and Images][1].
[1]: “Custom Field – Upload Files and Images”
Development
Google Analytics data in a SharePoint list
Jacob Reimers has written an C# API for accessing Google Analytics data.
When I saw his post, I thought it would be great to fetch the latest data every day, and write it to a SharePoint list. Then you can use the data, without querying Google for every request.
You could then use the ChartPart for SharePoint to generate nice charts from your Google Analytics data.
Anwendungsentwicklung mit SharePoint 2010
Fabian hat es auf seinem Blog schon geschrieben. Deshalb werde ich auch über unser Projekt bloggen.
Zusammen schreiben wir ein Buch zum Thema Anwendungsentwicklung mit SharePoint 2010. Das Buch richtet sich an Entwickler, Anwender und Administratoren und hat das Ziel, Wege aufzuzeigen, mit denen Unternehmenslösungen mit SharePoint 2010 realisiert werden können.
SPFarm.Local is null?
It took me some time to find the solution to a problem, where a WPF application could not connect to a local SharePoint farm via SPFarm.Local. It always returned null.
Windows 7 was not the problem. I copied my application to a Windows Server 2008 VM to test.
In case somebody has the same problem, here is the solution:
Make sure you have set the Platform to “Any CPU” and not x86 if you are using x64 assemblies.
SPDispose or not to SPDispose
Roger Lamb has posted an article about SharePoint objects, which must not be disposed. He also wrote about changes to SP 2010 regarding disposing objects.
- SPContext.Current.Site
- SPContext.Current.Web
- SPContext.Site
- SPContext.Web
- SPControl.GetContextWeb(..)
- SPControl.GetContextSite(..)
- SPFeatureReceiverProperties.Feature.Parent
- SPItemEventProperties.ListItem.Web
- SPList.BreakRoleInheritance()
- Do not call list.ParentWeb.Dispose()
- SPListEventProperties.Web
- SPListEventProperties.List.Web
- SPSite.RootWeb
- Problems may occur when SPContext.Web has equality to the SPContext.Web.. make sure you dispose of SPSite and it will cleanup sub webs automatically
- SPSite.LockIssue
- SPSite.Owner
- SPSite.SecondaryContact
- SPWeb.ParentWeb
- SPWebEventProperties.Web
More on his blog: http://blogs.msdn.com/rogerla/archive/2009/11/30/sharepoint-2007-2010-do-not-dispose-guidance-spdisposecheck.aspx
Getting started with Silverlight development
Tim Heuer has written 7 posts about Silverlight development. So if you haven’t started with Silverlight but plan to, have a look at his post series.
- Part 1: Really getting started – the tools you need and getting your first Hello World
- Part 2: Defining UI Layout – understanding layout and using Blend to help
- Part 3: Accessing data – how to get data from where
- Part 4: Binding the data – once you get the data, how can you use it?
- Part 5: Integrating additional controls – using controls that aren’t a part of the core
- Part 6: Polishing the UI with styles and templates
- Part 7: Taking the application out-of-browser
CodePlex project
Today I’ve created a CodePlex project for some of my SharePoint developments. Interesting to see what I’ve done so far 🙂
The link is http://renehezser.codeplex.com/
Webparts
- [Access Fileserver Data via SharePoint][3]
- [Display all my alerts][4]
- [Webpart to show Sitecollections/Subwebs][5]
- [TagCloud Webpart][6]
- [Display a single ListItem][7]
Custom Fields
- [Upload Files and Images][8]
Features
- [.NET 3.5 and Silverlight][9]
Control Adapter
- [Navigation for Wikis][10]
Event Handler
- [Picture Library and Exif data][11]
- [EventHandler which sends an Email for new/changed items][12]
Tools
Develop your own Windows Service
Writing a Windows Service is very easy. Deploying it with a Setup is an easy task as well.
But be careful what option you set for the failure behavior!
In my case I installed the service with “Windows Installer XML (WiX) toolset”.
Do not use critical as ErrorControl value. It will force a reboot of the server, if the services fails to start.
Fortunately booting with “Last known good configuration” worked for me and I could uninstall the service…
Get Central Administration Webapplication
With this code you can get the central administration webapplication.
1: private static SPWebApplication GetCentralAdministrationWebApplication()
<span class=lnum> 2: </span>{ 3: SPWebService cS = SPWebService.ContentService;
<span class=lnum> 4: </span> var service = cS.Farm.Services.GetValue<SPWebService>(<span class=str>"WSS_Administration"</span>);
5: SPWebApplicationCollection webApplications = service.WebApplications;
<span class=lnum> 6: </span> <span class=kwrd>foreach</span> (SPWebApplication webApplication <span class=kwrd>in</span> webApplications)
7: {
<span class=lnum> 8: </span> <span class=kwrd>return</span> webApplication;
9: }
<span class=lnum> 10: </span> <span class=kwrd>return</span> <span class=kwrd>null</span>;
11: } If you have a better way, let me know 🙂
Control.ClientID has wrong value
An ASP.NET Controls has a ClientID property. SharePoint Controls inherit from the ASP.NET Controls. The property will give you the ID, the rendered control will have in the HTML source. There is one thing to remember:
The ClientID is valid only, if the control has been added to the Controls of the Page!
| ID **before** adding the control | ID **after** adding the control | FilterButton | **ctl00\_m\_Webpart1_**FilterButton |
So if you need the ClientID e.g. to pass it to a JavaScript to be able to find the control, make sure you grab the ClientID after the control has been added to the Page.
New WSPBuilder version
Carsten Keutmann has released a new version of his great WSPBuilder. Here are the new features:
- A Reference folder under GAC and 80/Bin is now supported for large dlls that do not need reflection for SafeControls and Permissions.
- New menu function “Recycle the Windows SharePoint Services Timer” implemented on WSPBuilder Extensions.
- Refactoring of “Copy to GAC” in order to improve the functionality.
- Bug fixed! “Unable to get solution id from manifest: Unable to extract manifest.xml …” error for x64 systems.
- CabLib.dll updated to new version 10.5.
- Its now possible to include the Cablib.dll into the WSP package.
The download (incl. source code) is available on CodePlex: Download WSPBuilder
Update: Custom Field – Upload Files and Images
Inserted links are now relative.
Go to the original post for more information and the download link.
Multi Level Navigation
The out-of-the-box WSS navigation offers one level of navigation. The navigation elements can be configured in the site settings.
There is a way to make it have multi level navigation, as MOSS does, by changing the DataSource. But this “hack” is not flexible, as you can not reorder the item within the navigation menu.
While I was reading the post How to create your own Cascading Navigation using the ASPMenu control, the decision was made to build a custom navigation which supports multiple navigation levels.
Using SharePoint Controls
Back from vacation. 1 week with an offline version of feeds is hard. So I read the postings I got closely 🙂 One post I do want to bring your attention to, is about SharePoint Controls.
My post about using the SharePoint Controls shows how to use the controls you see in forms (TextField, NumberField, LookupField…).
There are plenty of SharePoint controls, which you can use. Robin Meure has written a post “re-using SharePoint controls”. The controls in his post are: