c# - Get revision feed for a document in Google Docs using .NET

Question

I am trying to get revision feed for an existing document in Google Docs (actually I just need revision count). I use the code below and get a GDataRequestException. The inner exception is 404 while the response string is (document id is truncated):

<errors xmlns='http://schemas.google.com/g/2005'>
  <error>
    <domain>GData</domain>
    <code>ResourceNotFoundException</code>
    <internalReason>Invalid document id: file:0BxwzFL2fD0</internalReason>
  </error>
</errors>

And here is the code:

var documentsService = new DocumentsService("myappname");
documentsService.SetAuthenticationToken(token);

var uri = string.Format("https://docs.google.com/feeds/default/private/full/{0}/revisions", Uri.EscapeDataString(resourceId));
var query = new DocumentsListQuery(uri);
var feed = documentsService.Query(query);

Answer 1

您使用的 resourceId 似乎无效。与其手动构造 uri，不如使用要检索其修订的 DocumentEntry 实例的 RevisionDocument 属性：

var uri = entry.RevisionDocument;

Answer 2

var documentsRequest = new DocumentsRequest();

// ... do any authentication here..

var revisions = documentsRequest.Get<Google.Documents.Document>(entry.RevisionDocument).Entries;