What's in the http://schemas.microsoft.com/WebPart/v2 namespace?

Question

I'm adding some custom forms to a list instance by using the <AllUsersWebPart> element in the list schema. It basically configures a WebPart.

My question is, what are all the possible tags I can use in there. What's in the http://schemas.microsoft.com/WebPart/v2 namespace?

There are also variations of this, like http://schemas.microsoft.com/WebPart/v2/ListForm.

Where can I find a reference?

Answer 1

I think it's allways an XML-serialized webpart or something very similar. Look for ListFormWebpart class definition from MSDN:

[DesignerAttribute(typeof(SPControlDesigner))] 
[XmlRootAttribute(Namespace="http://schemas.microsoft.com/WebPart/v2/ListForm")] 
[SupportsAttributeMarkupAttribute(false)] 
[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)] 
[SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel=true)] 
public sealed class ListFormWebPart : WebPart, IDesignTimeHtmlProvider, IDesignerEventAccessor

Note the namespace. So I think it may be any of webparts in Microsoft.SharePoint.WebPartPages at least (in XML-serialized form). And look at example:

<AllUsersWebPart WebPartZoneID="Right" WebPartOrder="1">
         <![CDATA[
            <WebPart xmlns="http://schemas.microsoft.com/WebPart/v2" xmlns:iwp="http://schemas.microsoft.com/WebPart/v2/Image">
               <Assembly>Microsoft.SharePoint, Version=11.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c</Assembly>
               <TypeName>Microsoft.SharePoint.WebPartPages.ImageWebPart</TypeName>
               <FrameType>None</FrameType>
               <Title>Site Image</Title>
               <iwp:ImageLink>/_layouts/images/homepage.gif</iwp:ImageLink>
            </WebPart>
          ]]>
      </AllUsersWebPart>

Note "CDATA" - it means that there's no any XML scheme or other way to view a list of all available elements inside AllUsersWebPart tag because there's no such explicit restriction.