我使用SearchFilter集合来限制使用EWS将请求返回到Exchange 2010邮箱的电子邮件。
连接服务和打开邮箱没问题。
问题是我的searchFilter被忽略了,请求将所有电子邮件返回给EWS。
这是我的代码:
static void Main(string[] args)
{
ServicePointManager.ServerCertificateValidationCallback = CertificateValidationCallBack;
//creates an object that will represent the desired mailbox
Mailbox mb = new Mailbox(@"bbtest@bocuk.local");
// Find all items where the body contains "move reports".
//string qstring = "Body:\"move reports\"";
// Identify the item properties to return.
//view.PropertySet = new PropertySet(BasePropertySet.IdOnly,
//ItemSchema.Subject);
//creates a folder object that will point to inbox fold
FolderId fid = new FolderId(WellKnownFolderName.Inbox, mb);
//this will bind the mailbox you're looking for using your service instance
Folder inbox = Folder.Bind(service, fid);
List<SearchFilter> searchFilterCollection = new List<SearchFilter>();
searchFilterCollection.Add(new SearchFilter.SearchFilterCollection(LogicalOperator.And, new SearchFilter.IsEqualTo(EmailMessageSchema.IsRead, false)));
searchFilterCollection.Add(new SearchFilter.SearchFilterCollection(LogicalOperator.And, new SearchFilter.IsEqualTo(EmailMessageSchema.HasAttachments, true)));
searchFilterCollection.Add(new SearchFilter.Not(new SearchFilter.ContainsSubstring(ItemSchema.Subject, "FATS")));
searchFilterCollection.Add(new SearchFilter.Not(new SearchFilter.ContainsSubstring(ItemSchema.Subject, "Assignment")));
searchFilterCollection.Add(new SearchFilter.Not(new SearchFilter.ContainsSubstring(ItemSchema.Subject, "Sandbox: Assignment")));
SearchFilter searchFilter = new SearchFilter.SearchFilterCollection(LogicalOperator.Or, searchFilterCollection.ToArray());
ItemView view = new ItemView(100);
string sAttachmentPath = "C:\\Dev\\EWSHelloWorld\\attachments\\";
// Find the first email message in the Inbox that has attachments. This results in a FindItem operation call to EWS.
FindItemsResults<Item> results = service.FindItems(WellKnownFolderName.Inbox, searchFilter, view);
foreach (EmailMessage email in results)
// looping through all the emails
{
System.Diagnostics.Debug.Write("Found attachemnt on msg with subject: " + email.Subject);
.... code removed for brevity!
因此,根据我对searchFilter的理解,只应返回带有附件的未读电子邮件,并且没有 FATS 或 Sandbox:Assignment 作为主题。
但这不起作用,对EWS的请求只是返回所有电子邮件。
我做错了什么?
答案 0 :(得分:7)
菲利普,
我开始调试你的代码,并对你想要返回的内容感到有些困惑。在您的代码中,您在创建搜索过滤器时使用OR运算符,但在您的文本中,您将所需的输出描述为
只有带有附件的未读电子邮件应退回和,他们不应将FATS或Sandbox:作为主题分配。
我接受了您尝试过滤的参数,并提出了以下过滤器,该过滤器将所有过滤器与可在我的机器上运行的逻辑AND结合使用:
SearchFilter.SearchFilterCollection searchFilterCollection = new SearchFilter.SearchFilterCollection(LogicalOperator.And);
searchFilterCollection.Add(new SearchFilter.IsEqualTo(EmailMessageSchema.IsRead, false));
searchFilterCollection.Add(new SearchFilter.IsEqualTo(EmailMessageSchema.HasAttachments, true));
searchFilterCollection.Add(new SearchFilter.Not(new SearchFilter.ContainsSubstring(EmailMessageSchema.Subject, "FATS")));
searchFilterCollection.Add(new SearchFilter.Not(new SearchFilter.ContainsSubstring(EmailMessageSchema.Subject, "Assignment")));
searchFilterCollection.Add(new SearchFilter.Not(new SearchFilter.ContainsSubstring(EmailMessageSchema.Subject, "Sandbox: Assignment")));
FindItemsResults<Item> results = service.FindItems(WellKnownFolderName.Inbox, searchFilterCollection, new ItemView(100));
有几点需要注意:
SearchFilterCollection
,然后将过滤器添加到该集合中。EmailMessageSchema.Subject
而不是ItemSchema.Subject
。我在测试中也使用了自己的字符串值,但是我将字符串值放在了示例中。当我运行测试时,如果首先使用附件过滤未读消息。然后,我确认在添加主题过滤器后,返回的结果会进一步过滤。
我希望这会有所帮助。