Add a WebPart into the Rich Content of a wiki page in SP2010

After a long struggle looking in the SP API for how to insert a WebPart in the "rich content" of a wiki page, i found the answer. Thanks to Stefan Stanev for posting the answer to my question.

I have modified the code a bit to suite my needs

SPSite osite = properties.Feature.Parent as SPSite; 

   using (SPWeb oWeb = osite.OpenWeb(osite.RootWeb.ID)) 

  {

    //SPLimitedWebPartManager webpartsManager =  oWeb.GetLimitedWebPartManager(oWeb.RootFolder.WelcomePage, PersonalizationScope.Shared);

   SPFile file = oWeb.GetFile(oWeb.RootFolder.WelcomePage);

   Guid cwpID = AddWebPartToRichContent(file);

   Guid xlvID = AddListWebPartToRichContent(file, "Announcements");

  }

private Guid AddWebPartToRichContent(SPFile file)

{

// NOTE: we assume that the SPFile was checked out

// get the limited wp manager for that SPFile

SPLimitedWebPartManager mngr = file.GetLimitedWebPartManager(PersonalizationScope.Shared);

// create a sample content editor wp

ContentEditorWebPart cwp = new ContentEditorWebPart();

cwp.Title = "My editor";

// add the web part to the special wpz zone

mngr.AddWebPart(cwp, "wpz", 0);

// store the web part's internal ID

Guid cwpID = mngr.GetStorageKey(cwp);

// get the list item for that SPFile

SPListItem item = file.Item;

// update the PublishingPageContent field value

item["WikiField"] += this.GetEmbeddedWPString(cwpID);

// update the item

item.SystemUpdate(false);

// the SPFile instance can be checked in, published, approved afterwards

return cwpID;

}

private Guid AddListWebPartToRichContent(SPFile file, string listTitle)

{

// NOTE: we assume that the SPFile was checked out

// get the limited wp manager for that SPFile

SPLimitedWebPartManager mngr = file.GetLimitedWebPartManager(PersonalizationScope.Shared);

// create a sample XLV

XsltListViewWebPart xlv = new XsltListViewWebPart();

// get a target list

SPList list = file.ParentFolder.ParentWeb.Lists[listTitle];

// set the ListName property with the capitalized list ID w/o the curly braces

xlv.ListName = list.ID.ToString("B").ToUpper();

// use the schema of the default view

xlv.ViewGuid = list.DefaultView.ID.ToString("B").ToUpper();

// add the web part to the special wpz zone

mngr.AddWebPart(xlv, "wpz", 0);

// store the web part's internal ID

Guid xlvID = mngr.GetStorageKey(xlv);

// get the list item for that SPFile

SPListItem item = file.Item;

// update the PublishingPageContent field value

item["WikiField"] += this.GetEmbeddedWPString(xlvID);

// update the item

item.SystemUpdate(false);

// the SPFile instance can be checked in, published, approved afterwards

return xlvID;

}

private string GetEmbeddedWPString(Guid wpID)

{

const string form = @"

                                    

                                    

                                    

                                    

                                   

";

// set the web part's ID as part of the ID-s of tho div elements

return string.Format(form, wpID);

}

I hope this would help someone out there.

Update: Found another helpful post
http://www.habaneros.com/mobile/blog/10-03-30/Programmatically_Change_Content_on_a_Wiki_Page_in_SharePoint_2010.aspx