Sure you don’t want to load all the properties of listitems, like ContenTypeId and so on. We cannot avoid __metadata property :), but we can let listdata.svc to send only properties we want. By the way, the best tool for building listdata.svc queries is linqpad. Just write a usual Linq and linqpad converts it to web service url query:   Another great stuff is $count, just add ?$count and you get only the count of items, no other junk.

I think, powershell is the best way to do configurations you have to do once. Adding some links to global (top) navigation is one of them:

asnp microsoft.sharepoint.powershell
$w = get-spweb http://takana
$l = New-Object Microsoft.SharePoint.Navigation.SPNavigationNode("Smells like team spirit", "/pages/teamspirit.aspx")
$w.Navigation.TopNavigationBar.AddAsLast($l)

Feature receiver

The alternative is to create a web scoped feature and provide properties:

If you encounter problems while customizing global site navigation in a custom site definition for SharePoint 2010, you probably can solve it by adding the necessary navbar element in navbars section of the onet.xml:

<NavBar Name="$Resources:core,category\_Top;"
    Separator="&amp;nbsp;&amp;nbsp;&amp;nbsp;"
    Body="&lt;a ID='onettopnavbar#LABEL\_ID#' href='#URL#' accesskey='J'&gt;#LABEL#&lt;/a&gt;"
    ID="1002" />

It solved the problems for me :).

Comments from Wordpress.com

Chilly - Nov 3, 2012

Ziegler provides a cool intro, implementation sample and much more. When deployed we can apply this policy to a contenttype in the UI, or in code. To create our own expiration logic we have to implement IExpirationFormula and its ComputeExpireDate:

public class TaskExpiration : IExpirationFormula
{
	public DateTime? ComputeExpireDate(SPListItem item,
						XmlNode parametersData)
	{
		if (!item\["Status"\].Equals("Completed"))
		{
			return null;
		}
		var dt = (DateTime) item\["Modified"\];
		return dt.AddDays(30);
	}
}
```In order to see IExpirationFormula, add a reference to Microsoft.Office.Policy (and maybe Microsoft.Office.DocumentManagement): [![](https://sharepointkunskap.files.wordpress.com/2011/12/policy-dll.png "policy-dll")](https://sharepointkunskap.files.wordpress.com/2011/12/policy-dll.png) To see our custom retention policy, we have to register it in xml, we can do it in Feature Receiver like [Yaroslav](http://www.sharemuch.com/2011/01/10/creation-custom-retention-policies-for-sharepoint-2010-libraries/):

public override void FeatureActivated(SPFeatureReceiverProperties properties) {     const string xmlManifest =        “<PolicyResource xmlns=‘urn:schemas-microsoft-com:office:server:policy’” +        " id = ‘Takana.TaskRetentionPolicy’" +        " featureId=‘Microsoft.Office.RecordsManagement.PolicyFeatures.Expiration’" +        " type = ‘DateCalculator’>" +        " Takana Task Retention Policy" +        “Tasks expire 30 days after they have been completed” +        “Takana.SharePoint, Version=1.0.0.0, Culture=neutral, " +        “PublicKeyToken=920c0327f8b01d97” +        “Takana.SharePoint.Policies.TaskExpiration” +        “”;     PolicyResourceCollection.Add(xmlManifest); }

To add items to a list in bulk, or remove them in bulk. Well to do that you can use SPLinq, Server Object Model and … web.ProcessBatchData, which is the most effective. I did an experiment today. I created 1000 tasks in my task list three times and removed all items in three different ways and took time. First I put 1000 items with ajax and listdata.svc:

function pad(n) {
   if (n >= 10000) return n;
   if (n >= 1000) return '0' + n;
   if (n >= 100) return '00' + n;
   if (n >= 10) return '000' + n;
   return '0000' + n;
 }
var s;
var counter = 0;
var title = "task "
function foo() {
   counter++;
   if (counter > 10000) {
      window.clearInterval(s);
   }
   else {
      var value = {};
      value.title = title + pad(counter);
      createNewTask(value);
   }
}
s = setInterval(foo, 200);

Then I ran three different scenarios. Here is the resut for VMWare machine Windows Server 2008 R2, 4GB RAM, SharePoint 2010 SP1:

Tired to see C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\BIN\stsadm.exe? Wouldn’t be nice to run stsadm directly without going the 14 bin folder, or permanently changing %PATH%, well add this line to your script:

PATH=%PATH%;C:\\Program Files\\Common Files\\Microsoft Shared\\Web Server Extensions\\14\\BIN\\

There is a solution in StackOverflow:

/\* use a function for the exact format desired... \*/
function ISODateString(d){
 function pad(n){return n<10 ? '0'+n : n}
 return d.getUTCFullYear()+'-'
      + pad(d.getUTCMonth()+1)+'-'
      + pad(d.getUTCDate())+'T'
      + pad(d.getUTCHours())+':'
      + pad(d.getUTCMinutes())+':'
      + pad(d.getUTCSeconds())+'Z'}

var d = new Date();
print(ISODateString(d)); // prints something like 2009-09-28T19:03:12Z
```But there is already a function for this: toISOString, it came with ecmascript 5. [Unfortunately, not all browsers support this](http://kangax.github.com/es5-compat-table/ "See the best comparision for ecmascript 5 support"), to solve this problem, we can provide our own prototype function for Date if it doesn't exist:

if (!Date.prototype.toISOString) { Date.prototype.toISOString = function() { function pad(n) { return n < 10 ? ‘0’ + n : n } return this.getUTCFullYear() + ‘-’ + pad(this.getUTCMonth() + 1) + ‘-’ + pad(this.getUTCDate()) + ‘T’ + pad(this.getUTCHours()) + ‘:’ + pad(this.getUTCMinutes()) + ‘:’ + pad(this.getUTCSeconds()) + ‘Z’; }; }

To pass arguments from a ModalDialog is easy. Provide some buttons and invoke close function:

SP.UI.ModalDialog.commonModalDialogClose(SP.UI.DialogResult.OK, someValue);
```The first argument is result, [it is a enumeration with three alternatives](http://msdn.microsoft.com/en-us/library/ff409060.aspx): cancel, invalid and OK. The value you pass back to the main window can be a simple string, or a complex javascript object. In this example I'll create a html element which is hidden (id="modal-form" [class="s4-die"](/2011/10/14/s4-die/)):

Pass arguments to Modal Dialog and use it

In options you pass to SP.UI.ModalDialog.showModalDialog you can define args property. It can be any object with any complexity.

In my previous post I needed the accound id of the current user for posting new list items. To retrieve the id, we can push this to the client from the code behind, or get the current user using Client Object Model. To provide a more generic way we can write a js function which get the current user. But we must even provide some callback functionality, otherwise we don’t know if the operation was successful or not. Let’s be inspired by success and error properties in $.ajax:

In one of my previous posts I showed how to retrieve data from listdata.svc with jQuery $.getJSON method. Getting data is very simple, listdata.svc provides a powerful restful interface with filtering, expanding and other features. Read the best and short introduction to listdata.svc by Suneet Sharma or a more detailed and technical article about filters, functions and operators by Mike Flasko at Microsoft with short examples here. Now back to listdata.svc in the SharePoint environment. Corey Roth provides a good images and sample results. For REST the “http verbs” are very important: GET, POST, PUT, DELETE.. SharePoint RESTful interface defines these verbs like that: