SharePoint Blog - René Hézser

SPQuery for my tasks

René Hézser — Thu, 16 May 2013 13:29:49 GMT

Developing solution with multiple languages (or a language which is not English) sometimes can be a bit painful. To configure a Webpart to display only my tasks, I would filter for [Me] or [Ich].

To achieve the same via code / CAML, you can filter by UserID and not the string “Me”.

  1: <Where>
  2:   <Eq>
  3:     <FieldRef Name="AssignedTo" />
  4:     <Value Type="Integer">
  5:       <UserID />
  6:     </Value>
  7:   </Eq>
  8: </Where>
  9: <OrderBy>
 10:   <FieldRef Name="Status" />
 11:   <FieldRef Name="Priority" />
 12: </OrderBy>

This is just a reminder for me, so I can find the information more quickly. But maybe this is useful for some of you as well

Do long running operations on SPListItem creation

René Hézser — Wed, 24 Apr 2013 15:56:56 GMT

Events on SPListItems like ItemAdding or ItemAdded are nothing new. Many of you have already used them. Recently I had a requirement to create a new SPSite, when an item in a list has been created. So an ItemReceiver was my choice.

But the customer wants something special During the creation process, which takes some seconds, the user should see a loading animation.

Here comes the problem. The ItemEventReceiver is running in the background, and has no knowledge about the GUI process. Well, at least if it is running asynchronous. A very good explanation can be found here: Using synchronous "after" events (e.g. ItemUpdated) in SharePoint 2010.

The short summary: If you use synchronous events, they get executed in the same thread and you have the HttpContext and SPContext!

You already tried this and didn’t have the context objects?

Here comes the trick…

Grab the objects in the constructor, store them and use later when you need them.

  1: private SPContext _spContext;
  2: private HttpContext _httpContext;
  3: 
  4: public EventReceiver()
  5: {
  6:   _spContext = SPContext.Current;
  7:   _httpContext = HttpContext.Current;
  8: }
  9: 
 10: public override void ItemAdded(SPItemEventProperties properties)
 11: {
 12:   base.ItemAdded(properties);
 13:   try
 14:   {
 15:     if (_spContext == null)
 16:     {
 17:       // item has been created via code from timerjob. no context and no need to redirect
 18:       return;
 19:     }
 20:     string url = SPUrlUtility.CombineUrl(_spContext.Web.ServerRelativeUrl, "_layouts...") + properties.ListItemId;
 21:     _httpContext.Response.Redirect(url);
 22:   }
 23:   catch (ThreadAbortException e)
 24:   {
 25:     // occures if redirected
 26:   }
 27: }

Ok. We’ve successfully redirected to another page in our creation page, which can be a modal dialog or full frame page. I’ve not been able to use the Page to start a SPLongOperation with. A NullReference Exception has been thrown. So my solution was another Layouts-Page, which then starts the SPLongOperation. When it is done, the Layouts-Page is closed. By closing it, the modal dialog from the Item Creation process also vanishes.

I’ve chosen the ItemAdded and not ItemAdding event, because ItemAdding did not like the redirect. The item did not get created.

The Layouts-Page uses SPLongOperation e.g. in CreateChildControls.

  1: using (var longRunning = new SPLongOperation(Page))
  2: {
  3:   longRunning.Begin();
  4: 
  5:   // do your long running operation here
  6: 
  7:   longRunning.End(null, SPRedirectFlags.Default, Context, null, 
  8: "window.frameElement.commonModalDialogClose(1, null);");
  9: }
 10:

After the operation has been executed, the SPLongOperation is ended and a script passed as last parameter in the End() method is executed. You don’t need script tags here.

To register the ItemEventReceiver to execute synchronously, use the following code.

  1: SPList list = ...
  2: 
  3: // attach EventReceiver
  4: var receiverDefinition = list.EventReceivers.Add();
  5: receiverDefinition.Type = SPEventReceiverType.ItemAdded;
  6: receiverDefinition.Assembly = "yourAssemblyFullName";
  7: receiverDefinition.Class = "Your EventReceiver class (incl. namespace)";
  8: receiverDefinition.Synchronization=SPEventReceiverSynchronization.Synchronous;
  9: receiverDefinition.Update();
 10: 
 11: list.Update();

Basically that’s it. A combination of known tasks to create a new solution.

Summary

You can show a work-in-progress dialog to a user, when a new SPListItem is created. Here are the steps:

Use a synchronous asynchronous event
Redirect to a Layouts-Page
Use the SPLongOperation class to do your work
Have fun and happy customers

CKS - Dev for Visual Studio 2012

René Hézser — Wed, 17 Apr 2013 07:08:21 GMT

The Tools have been released for VS 2012. Great!

The CKS - Development Tools Edition for Visual Studio 2012 is a collection of Visual Studio templates, Server Explorer extensions and tools providing accelerated SharePoint 2010/2013 development based on Microsoft's SharePoint 2010/2013 development tools.

The current 1.0 release includes the following features:

Server Exploration from CKSDev 2010 v2.4 - Visual Studio 2012 version of the Visual Studio 2010 exploration. Includes all the existing server explorer features.
Quick Deploy extensions from CKSDev 2010 v2.4 - Visual Studio 2012 version of the Visual Studio 2010 quick deploy. Includes all the existing quick deploy features.

About the Community Kit for SharePoint

The Community Kit for SharePoint is a set of editions, components, tools and recommended documentation for SharePoint development. You are currently viewing the edition project site for the Development Tools Edition. To learn about the other editions and components you can go to http://www.communitykitforsharepoint.org/default.aspx.

You can read more and download the tools here: http://visualstudiogallery.msdn.microsoft.com/cf1225b4-aa83-4282-b4c6-34feec8fc5ec

A CodePlex page also exists: http://cksdev.codeplex.com

Now Available: Office Developer Tools for Visual Studio 2012

René Hézser — Tue, 05 Mar 2013 17:04:18 GMT

Finally! Now Available: Office Developer Tools for Visual Studio 2012

There are some points to mention, where the final release of the tools differ from previous preview releases:

validation experience that helps you to find and fix common errors prior to submitting your apps to the Office Store
A continuous integration workflow
Windows Azure cloud service projects for creating provider-hosted Apps
A dramatically improved Workflow designer

The download link: http://aka.ms/OfficeDevToolsForVS2012

ShareCamp und ShareConf, ich bin dabei

René Hézser — Thu, 28 Feb 2013 10:20:50 GMT

In diesem Jahre geht es rund mit Veranstaltungen. Nach der SharePoint Konferenz bin ich auch beim ShareCamp dabei und auf der ShareConf mit einem Vortrag dabei.

Mal schauen was noch so kommt

Cannot delete User Profile Property in SharePoint 2013

René Hézser — Fri, 08 Feb 2013 11:38:40 GMT

If you run into the problem that you can’t delete properties within the User Profile Service Application, an Exception like this will be shown:

To resolve the problem, grant “Full Control” permissions to the administrative Applicationpools group (WSS_WPG).

Now you should be able to delete properties again.

SharePoint Konferenz im März, ich bin dabei

René Hézser — Wed, 16 Jan 2013 12:13:15 GMT

Im März ist wieder SharePoint Konferenz Termin. Ich werden mit zwei Vorträgen dabei sein.

SharePoint 2013 und Social. Was ist neu, was kann man machen?

Enterprise-Lösungen mit Business Connectivity Services

Nach der BASTA 2012, BASTA Spring 2012, BASTA 2011, BASTA 2010, BASTA 2009 und den SharePoint Konferenzen 2010, 2009 ist das mein 7. Auftritt als Speaker.

Cool. Es macht ja auch jedes mal aufs Neue Spaß

UserProfile Service, Managed Properties are not available

René Hézser — Thu, 08 Nov 2012 20:06:13 GMT

“Your search encountered an error. If the problem persists, contact the portal site administrator.” Great. That would be me

I wanted to manage some properties within the User Profile Service Application. But an error message kept me from doing so.

A quick look for the running SharePoint services from the Central Administration looked ok. The UPS services is up and running. Then it hit me. Even if SharePoint tells you everything is OK, it might not be the case. And I was right. The FIM services were not started. So After restarting the “Forefront Identity Manager Service”, I could look into the properties again.

Would do we learn? Do not trust the Central Administration if it comes to Windows Services…

SharePoint 2013 RTM Availability

René Hézser — Thu, 25 Oct 2012 08:34:22 GMT

With pleasure I read multiple feeds about the availability of SharePoint 2013 via MSDN

I am anxious to install that version, and see what has changed compared to the Preview.

René

RSS-Feed URL changes

René Hézser — Sun, 30 Sep 2012 10:12:50 GMT

One of the reasons I choose Feedburner for my feed was a non-changing URL for my readers.

Unfortunately Google is closing Feedburner services as posted on https://developers.google.com/feedburner/

So you’ll have to change the RSS-feed URL from ~~http://feeds.feedburner.com/ReneHezser~~ to http://www.hezser.de/blog/rss.xml