Reading a document from TFS server through C# code.

You can get a version of a Work Item[^] and then look at the Attachments property that will get you a list of attachments associated with your WorkItem. You will require a reference to Microsoft.TeamFoundation.Client[^] and Microsoft.TeamFoundation.WorkItemTracking.Client[^]. A Code sample is below to get the Work Items.

using (Microsoft.TeamFoundation.Client.TeamFoundationServer tfs = Microsoft.TeamFoundation.Client.TeamFoundationServerFactory.GetServer(uri))
{
    Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItemStore wit = (Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItemStore)tfs.GetService(typeof(Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItemStore));

    Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItemCollection result = wit.Query("SELECT * FROM WorkItems");
    foreach (Microsoft.TeamFoundation.WorkItemTracking.Client.WorkItem wi in result)
    {
        foreach (Microsoft.TeamFoundation.WorkItemTracking.Client.Attachment attachment in wi.Attachments)
        {
            //do something
        }
    }
}