MOSS 2007 Archives - Blog IT

Add Silverlight control to SharePoint

António Vargas — Mon, 30 Nov 2009 20:28:00 +0000

One of the problems using Silverlight on SharePoint 2007 is how can we add a Silverlight control in the SharePoint site?

A quickly and simple solution that i found to do it is the SPSilverlight web part, a web part that allows you to add a Silverlight control to SharePoint.

The only configuration that you need to known is the path where the XAP file is stored in SharePoint (on the layout’s folder, on the library…).

To use this web part you need to install the following package:

http://spilverlight.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=35120

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Bussiness Data Catalog on SharePoint

António Vargas — Sat, 03 Oct 2009 16:10:00 +0000

Today, i was looking to the TechNet videos for SharePoint and i found some interesting videos about Business Data Catalog (BDC). If you known what’s this feature, you can learn more about it here.

Basically, the BDC is a new MOSS’s feature that allows you to integrate business data from the business applications, without spending much effort and without writing any line of code.

The interesting BDC videos to how to start to work with this feature are the following:

Create and Configure a Business Data Catalog

Use the Business Data Catalog

Firstly, I watched “Use the Business Data Catalog” video and i was scared because to use this SharePoint feature i need to import an application definition file. And, how do i create it? Actually i don’t want to implement it manually, and after searching about this file’s generation, i found the first video’s topic that explains how to generate this file. So if you want to generate Application Definition file you can use the Application Definition Editor that is inside of the SharePoint Server 2007 SDK.

Well, for me the important question after watched this videos is: When do i should use BDC? For example, you should use BDC when your client has a LOB application and SharePoint Portal, he wants to integrate this application but he don’t want to spend much effort with this integration, because he spent much effort with the individual application’s maintenance. I think that isn’t a good approach for all the business use cases, but it’s a good approach for the simple integrations between applications.

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Get SharePoint List in XML Format

Raúl Ribeiro — Wed, 03 Jun 2009 12:59:00 +0000

I was building an InfoPath and it was necessary to retrieve information from a SharePoint List in XML format so i used this simple URL:

http://YOUR SITE/_vti_bin/owssvr.dll?Cmd=Display&List={LISTGUID}&View={VIEWGUID}&XMLDATA=TRUE

With this url you can create views with the information that you need and use it in xml format.

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SPContext.Current.FormContext

Raúl Ribeiro — Tue, 19 May 2009 10:27:00 +0000

I'm always forgetting this simple but very useful line so here it is 🙂

FormContext has this very cool Method SetFormMode and also this two properties FieldControlCollection (Get a collection of the Field Controls) , FormMode (Get the Current SPControlMode)

SPControlMode – http://msdn2.microsoft.com/en-us/library/microsoft.sharepoint.webcontrols.spcontrolmode.aspx

When you navigate to a page, and “Edit” the page, the page "mode" is changed and you are presented with data entry controls that let you enter data into page fields.

So a Page can be in different modes, SPControlMode enumeration contains these values (Display, Edit, Invalid and New)

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Code Access Security (CAS) Policies and WSP Builder

Raúl Ribeiro — Tue, 03 Feb 2009 10:31:00 +0000

Code Access Security (CAS) is an important technology for both SharePoint administrators and developers.

But everyone that have the need to create one of this CAS policies would agree that isn't very easy to create them.

Today i've discovered that we can create this complex configuration xml using WSP Builder, and the best part is that it's easy :).

So you just need to add the Microsoft.SharePoint.Security.dll to your project, add the namespace Microsoft.SharePoint.Security and the necessary permissions to your class file.

NOTE: This will only work if you add the assembly to the bin folder of your site using WSP Builder

Here is an example:

Add the following lines to your class

[SharePointPermissionAttribute(System.Security.Permissions.SecurityAction.Demand, ObjectModel = true)]
[SharePointPermissionAttribute(System.Security.Permissions.SecurityAction.Demand, Impersonate = true)]
public class MyClass{….}

And the WSP Builder will create this in the solution manifest file:

<PolicyItem>
<PermissionSet class="NamedPermissionSet" version="1" Description="Permission set for MySolution">
<IPermission class="Microsoft.SharePoint.Security.SharePointPermission, Microsoft.SharePoint.Security, version=12.0.0.0, Culture=neutral PublicKeyToken=71e9bce111e9429c" version="1" ObjectModel="True" Impersonate="True" />
…
PolicyItem>

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Using SPUserToken

Raúl Ribeiro — Tue, 04 Nov 2008 11:15:00 +0000

When you need to do something in a list or item, in SharePoint, with a specific user you can use the SPUserToken.

Here is an example:

try{
SPWeb webOrigUser = SPContext.Current.Web;

//get the token for the impersonation user
SPUserToken token = webOrigUser.AllUsers[USERNAME].UserToken;

SPSite site = new SPSite(SiteId/SiteUrl, token);
…..
}catch{}

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SPSiteDataQuery – Query cannot be completed because the number of lists in the query exceeded the allowable limit

Raúl Ribeiro — Fri, 22 Aug 2008 09:38:00 +0000

What to do when you try to execute a SPSiteDataQuery and sharepoint returns this error message: "The query cannot be completed because the number of lists in the query exceeded the allowable limit".

You should, limit the scope of the query to the current site or list or use a custom column index to help reduce the number of lists.

You can also use the MaxListLimit on the SPSiteDataQuery.Lists like this . This will search all lists in the entire site.

Not specifying a MaxListLimit would only search 1000 lists, but throw an error if there are more than 1000 lists. If you are no sure that the client will have less than 1000 lists I recommend you to use the '0'.

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Create new MOSS masterpages

Raúl Ribeiro — Thu, 21 Aug 2008 06:46:00 +0000

When you want to create a masterpage you should start with the Minimal.master page up on MSDN. It's a basic master page. It has everything you need in a masterpage, but no look and feel. You can then go and add everything you need. http://msdn2.microsoft.com/en-us/library/aa660698.aspx

You can also use the minimal masterpage created by Heather Solomon. He created this version because he ran into issues with the MSDN basic masterpage.

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MOSS BreadCrum in Intranet vs Publishing Sites

Raúl Ribeiro — Thu, 26 Jun 2008 07:03:50 +0000

When implementing a masterpage or page layout that needs to have breadcrumb, there are two providers for that, one that shows the entire path with list and folders and subfolders and other that only shows sites sub sites and page.

So the first one is to be used on Intranet’s the second can be used on both, but is more useful for Publishing Sites.

The providers are
SPContentMapProvider for Intranet’s and CurrentNavSiteMapProviderNoEncode for Publishing Sites.

CurrentNavSiteMapProviderNoEncode” id=”ContentMap” SkipLinkText=”” NodeStyle-CssClass=”ms-sitemapdirectional” PathSeparator=”»” runat=”server”/>

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DateTime SharePoint Field Format

Raúl Ribeiro — Fri, 15 Feb 2008 13:01:00 +0000

When you are creating a SharePoint page layout and what to have a specific datetime format ex: Friday, 15 February 2008 it's not possible using just the publishing date field of SharePoint.

But there is a very nice and clean trick:

Add a new calculated field to the content type that you are using on the page layout with the following formula:

=TEXT(DATEFIELD,"DATEFORMAT")

In the date format you can put "dddd, d mmmm yyyy" or "mmmm d-mm-yyyy" …

On your page layout add the html code behind:

This will show on edit mode the datefield and on display mode the calculated field.

You can use this trick on any list to show on your views different date formats.

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