Retrieve Wiki WebPart ID Property through CSOM

Question

I currently have a wiki page with content as well as several script editor web parts spaced throughout. I am attempting to get all content from the wiki page in order throught the SharePoint CSOM. When grabbing the WikiField content I can see where each
of the script editor web parts are placed because they have a DIV element with a GUID
<div class="ms-rtestate-read ms-rte-wpbox" contenteditable="false">
<div class="ms-rtestate-notify ms-rtestate-read 62f32861-7a85-489b-b92f-1784d7e758c9" id="div_62f32861-7a85-489b-b92f-1784d7e758c9" unselectable="on">
</div>
<div id="vid_62f32861-7a85-489b-b92f-1784d7e758c9" unselectable="on" style="display: none;">
</div>
</div>
The problem is that the GUID in the WikiField content is the web part id property while it seems that I can only retrieve the WebPartDefinition ID through CSOM, which is different. I need to find a way to match up the GUID in the WikiField content with the
GUID in the WebPartDefinition WebPart so that I can grab the content from the manager and place it in the correct spot on the wiki page. There doesn't seem to be a WebPartDefinition.WebPart.ID property in the SharePoint CSOM.
So far my code is:
Public Function GetWiki(ByVal pSPSite As String, ByVal pLibraryName As String, ByVal pItemId As Int32) As Boolean
Dim context As New ClientContext(pSPSite)
Dim WikiLibrary As List = context.Web.Lists.GetByTitle(pLibraryName)
Dim listItem As ListItem = WikiLibrary.GetItemById(pItemId)
Dim wikiPage As File = listItem.File
Try
context.Load(wikiPage)
context.Load(listItem)
context.ExecuteQuery()
Dim WikiContent As String = listItem("WikiField")
Dim wpm As LimitedWebPartManager = wikiPage.GetLimitedWebPartManager(PersonalizationScope.Shared)
context.Load(wpm.WebParts, Function(wps) wps.Include(Function(wp) wp.WebPart.Properties, Function(wp) wp.Id))
context.ExecuteQuery()
'Retrieve Script Web Parts added to Wiki Page
For Each wpd As WebPartDefinition In wpm.WebParts
Dim wpContent As String = wpd.WebPart.Properties("Content")
Dim wpTitle As String = wpd.WebPart.Properties("Title")
Next
Return True
Catch ex As Exception
Return False
End Try
End Function

Answer 1

Hi,
The Microsoft.SharePoint.Client.WebParts.WebPart class does not contain the ID property.
http://msdn.microsoft.com/en-us/library/microsoft.sharepoint.client.webparts.webpart_members(v=office.15).aspx
We can use WebPartPages.asmx and GetWebPartProperties2 to get the WebPart GUID.
http://msdn.microsoft.com/en-us/library/websvcwebpartpages.webpartpageswebservice(v=office.15).aspx
Best Regards
Dennis Guo
TechNet Community Support