Question

我可以像这样保存对WorkItem的附件：

TfsTeamProjectCollection tfsTeamProjects = new TfsTeamProjectCollection(new Uri(tfsServerUrl));
WorkItemStore tfsWorkItemStore = tfsTeamProjects.GetService<WorkItemStore>();
WorkItem tfsWorkItem = tfsWorkItemStore.GetWorkItem(tfsWorkItemId);

FileInfo fi = new FileInfo(@"D:\\Docs\testfile.txt");
Attachment tfsAttachment = new Attachment(fi.FullName);
tfsWorkItem.Attachments.Add(tfsAttachment);
tfsWorkItem.Save();

但是当我尝试获取像这样的WorkItem的附件列表时：

TfsTeamProjectCollection tfsTeamProjects = new TfsTeamProjectCollection(new Uri(tfsServerUrl));
WorkItemStore tfsWorkItemStore = tfsTeamProjects.GetService<WorkItemStore>();
WorkItem tfsWorkItem = tfsWorkItemStore.GetWorkItem(tfsWorkItemId);
foreach(Attachment tfsAttachment : tfsWorkItem.Attachments)
{
    // Do things here
}

tfsWorkItem.Attachments始终为空，即使我可以在TFS Web UI的“对象”选项卡中看到四个附件。我得到的WorkItem对象是正确的。

Answer 1

我不记得所有细节，但the code I wrote a while ago使用包装类进行枚举，启用LINQ。

``` class AttachmentEnumerable：IEnumerable { private AttachmentCollection underlyingCollection;

public AttachmentEnumerable(AttachmentCollection coll)
{ underlyingCollection = coll; }

public IEnumerator<Attachment> GetEnumerator()
{
    foreach (Attachment item in underlyingCollection)
    {
        yield return item;
    }
}

System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
{
    return this.GetEnumerator();
}

} ```

此外，Attachment对象仅包含您稍后必须下载的URL。

Answer 2

我尝试了完全相同的场景，它对我有用。我可以附加文件，然后使用你提到的AttachmentCollection获取它。你可以尝试做的是在相同的上下文中执行它，如下所示，并验证在这种情况下AttachementCollection是否仍为空：

TfsTeamProjectCollection tfsTeamProjects = new TfsTeamProjectCollection(new Uri(tfsServerUrl));
WorkItemStore tfsWorkItemStore = tfsTeamProjects.GetService<WorkItemStore>();
WorkItem tfsWorkItem = tfsWorkItemStore.GetWorkItem(tfsWorkItemId);
FileInfo fi = new FileInfo(@"D:\\New Text Document.txt");
Attachment tfsAttachment = new Attachment(fi.FullName);
tfsWorkItem.Attachments.Add(tfsAttachment);
tfsWorkItem.Save();
foreach (Attachment tfsAttachment1 in tfsWorkItem.Attachments)
                {
                    // Do things here
                }

如果此处的集合不为空，那么第二次调用可能会出现另一个问题，即您尝试获取附件。

TFS WorkItem附件可以保存但不能加载

2 个答案: