Write a SPFieldUser
If you have a list which contains a SPFieldUser field (with multiple selection), you can add users too it with the following code:
using (SPSite site = new
SPSite(“http://site”))
{
using (SPWeb web = site.AllWebs[“Web”])
<span style="font-family:Consolas;font-size:10pt"> {<br /> </span>
<span style="font-family:Consolas;font-size:10pt"> <span style="color:#2b91af">SPList</span> list = web.Lists[<span style="color:#a31515">"List"</span>];<br /> </span>
<span style="font-family:Consolas;font-size:10pt"> <span style="color:#2b91af">SPListItem</span> item = list.Items[0];<br /> </span>
<span style="font-family:Consolas;font-size:10pt"> <span style="color:#2b91af">SPFieldUserValueCollection</span> values = (<span style="color:#2b91af">SPFieldUserValueCollection</span>)item[<span style="color:#a31515">"Users"</span>];<br /> </span>
<span style="font-family:Consolas;font-size:10pt"> <span style="color:#2b91af">SPUserCollection</span> users = web.AllUsers;<br /> </span>
<span style="font-family:Consolas;font-size:10pt"> <span style="color:blue">foreach</span> (<span style="color:#2b91af">SPUser</span> user <span style="color:blue">in</span> users)<br /> </span>
<span style="font-family:Consolas;font-size:10pt"> {<br /> </span>
<span style="font-family:Consolas;font-size:10pt"> values.Add(<span style="color:blue">new</span><br /> <span style="color:#2b91af">SPFieldUserValue</span>(web, user.ID, user.Name));<br /> </span>
<span style="font-family:Consolas;font-size:10pt"> }<br /> </span>
<span style="font-family:Consolas;font-size:10pt"> item[<span style="color:#a31515">"Users"</span>] = values;<br /> </span>
<span style="font-family:Consolas;font-size:10pt"> item.Update();<br /> </span>
<span style="font-family:Consolas;font-size:10pt"> }<br /> </span>
}
Ajax Webpart displays Webservice data
In this post I want to show how to create an Ajax Webpart, which receives its data from a Webservice – and until the data arrived – shows a status bar.
As base for the Webpart, I took the one from Mark Collins and his great article http://sharethispoint.com/archive/2006/11/15/Build-web-parts-with-ajax.aspx.
The approach is to render the Webpart with only a
Webpart Development
Visual Studio Extensions
If you want to write your own Webpart, you can start from scratch with a Class Library, or use the templates from http://www.microsoft.com/downloads/details.aspx?FamilyID=19f21e5e-b715-4f0c-b959-8c6dcbdc1057&DisplayLang=en
The downside of this VS templates is, that they can only be used on a computer, which has SharePoint installed, and you cannot open a project created with the VS templates with a VS on which the templates are not installed.
Server side controls
Ishai Sagi wrote a great article about Webpart development. His article is about server side controls and data binding in Webparts.
Extend the simple Webpart
Now that we know how to create a simple Webpart, we want to add more functionality to it. Let us start with some Controls.
- Declare a Control as class variable
- Create it in CreateChildControls
- Modify the Control in OnPreRender
- Render the Control with its content
Declare a Control
public
class
simpleWebpart:WebPart
{
private
HtmlGenericControl _MyDiv;
CreateChildControls
This method creates the control. After the creation, we will be able to access the control from elsewhere, to modify its properties or its content.
Deploy and Debug a Webpart to your SharePoint Server
To deploy a Webpart to a SharePoint Installation, complete the 3 steps beneath:
- Copy the dll from your Webpart to the bin folder of a webapplication
- Register the dll in the web.config as safe
- Add the Webpart to the Webpartgallery of a sitecollection
- Debug the Webpart
Copy the dll from your Webpart to the bin folder of a webapplication
Copy your dll to the bin folder of your IIS virtual server directory. In my case this is “C:\Inetpub\wwwroot\wss\VirtualDirectories\45079\bin”.
Create a simple Webpart HOWTO
In this blog post, I want to show you how to create a simple Webpart. All you need is a Visual Studio 2005 (e.g. the express version) and of course SharePoint.
- Start your VS and create a new “Class Library”
-
Add a reference to the Microsoft.SharePoint.dll. We will create a SharePoint Webpart, to be able to add Properties.
- To display some text, override the render method. You have to create a reference to the Microsoft.Web.dll, and type using System.Web.UI;
-
{
Wiki mit Bildern Update
Falls bei der Benutzung des Webparts ein Fehler wie:
Fehler bei der Anforderung des Berechtigungstyps Microsoft.SharePoint.Security.SharePointPermission, Microsoft.SharePoint.Security, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c.
auftritt, muss der Trustlevel in der web.config auf Full gesetzt werden.
Zum vollständigen Beitrag: http://www.hezser.de
Update 23. Apr 2008:
Ich habe eine neue Version bereitgestellt.
Sending Email from SharePoint
You can configure a task list, to send an email if you assign a task to somebody. This works fine if this somebody has an internal email address.
If you happen to have an account inside the environment of the SharePoint Server, and configure it to have an external email address, sending an email to this account might fail. In the SharePoint Logs there is an entry:
03/12/2007 14:40:42.29 OWSTIMER.EXE (0x059C) 0x14E8 Windows SharePoint Services E-Mail 8gsf High #160009: Die E-Mail-Adresse ‘somebody@somewhere.tld’ ist unbekannt. (something like: the email address ‘somebody@somewhere.tld’ is unknown)
SharePoint Designer, default.master and access denied
If you want to modify the default.master masterpage in the root site of a sitecollection, you have to be a sitecollection owner. Otherwise you get an “access denied” error if you try to open, or check out the default.master.
SharePoint Event Handler
If you want to modify the current listitem, the OnAfterChange Event will trigger again.
You can avoid this by disabling the trigger before the update:
this.DisableEventFiring();
item.SystemUpdate(false);
this.EnableEventFiring();
Remove Server from Farm
After adding a new Server to the SharePoint farm, I removed the old one.
The central administration page was not accessible. It said “error 500” in the browser. By changing the admin port via “stsadm -o setadminport -port 12345” and back to the original port, I was able to regain access to the central administration page.
Testlink to Yvonne for EBE Tracking Test: http://yvonneharryman.wordpress.com/2009/06/28/sharepoint-beacon-is-the-new-home-for-my-blog-regarding-sharepoint/
Remove Server from Farm
After adding a new Server to the SharePoint farm, I removed the old one.
The central administration page was not accessible. It only said “error 500” in the browser. By changing the admin port via “stsadm -o setadminport -port 12345” and back to the original port, I was able to regain access to the central administration page.
Webpart, Properties and default value
If you write a Webpart with custom properties, you have to take care of the default value.
[WebBrowsable(true),
DefaultValue(“value”),
Personalizable(true),
WebDisplayName(“some property”),
WebDescription(“Description of the property”)]
public
string PropertyName
{
get { return _ PropertyName; }
set { _ PropertyName = value; }
}
Please do not specify a default value, which you might actually use. The default property value will not be saved, if you choose to configure it with the default value!
Wiki mit Bildern
Bei einem Blog Eintrag kann man Bilder mit an den Eintrag anfügen. Dies ist jedoch bei der Wiki Vorlage der Windows SharePoint Services V3 nicht möglich.
Um dieses Manko zu beseitigen, habe ich ein Webpart geschrieben. Dieses wird in die editform.aspx der Wiki List eingebaut. Danach kann man bequem über die Pflegemaske der Wiki Einträge Bilder an einen Wiki Beitrag anfügen. Die Bilder werden automatisch in eine Bildbibliothek hochgeladen.
Error 6483
Auf einem Server habe im Ereignisprotokoll immer wieder eine Meldung mit der ID 6483 gefunden:
Quelle: Office SharePoint Server
Kategorie: Gemeinsamte Dienste
Ereigniskennung: 6483
Zur Behebung des Problems habe ich versucht eine Reparaturinstallation durchzuführen. Jedoch ist diese mit Fehlermeldungen abgebrochen:
