如何在一次更新中将通过EWS提取的所有电子邮件标记为已读? [英] How can I mark as read all emails fetched through EWS in a single update?
问题描述
我遵循了MSDN上的EWS托管API示例,在我的Exchange邮箱帐户中找到所有未读的电子邮件。
I followed the EWS Managed API example on MSDN to find all unread email in my Exchange mailbox account.
我后来遍历了每个找到的项目,以便将它们放在列表中我需要在获取每条消息的正文并将其更新为 IsRead = true
的同时返回,如下所示:
I later went through each found item in order to place them in the list I need to return while fetching the body of each message and updating each to IsRead=true
as follows:
Folder.Bind(Service, WellKnownFolderName.Inbox);
SearchFilter sf = new SearchFilter.SearchFilterCollection(LogicalOperator.And,
new SearchFilter.IsEqualTo(EmailMessageSchema.IsRead, false));
//ItemView limits the results to numOfMails2Fetch items
FindItemsResults<Item> foundItems = Service.FindItems(WellKnownFolderName.Inbox, sf,
new ItemView(numOfMails2Fetch));
if (foundItems.TotalCount > 0)
{
List<EmailMessage> emailsList = new List<EmailMessage>(foundItems.TotalCount);
foundItems.Items.ToList().ForEach(item =>
{
var iEM = item as EmailMessage;
emailsList.Add(iEM);
// update properties
iEM.IsRead = true;
iEM.Update(ConflictResolutionMode.AutoResolve);
});
// fetches and assign the bodies of each email
Service.LoadPropertiesForItems(emailsList,PropertySet.FirstClassProperties);
return emailsList;
} else return null;
是否可以将所有找到的项目更新为 IsRead = true
在单个请求中代替?即
Is it possible to update all of the found items to IsRead=true
in a single request instead? I.e. without updating them one by one = better performance and coherent logic.
推荐答案
是的,您可以。 ExchangeService.UpdateItems
是您要在此处使用的方法。请参阅如何:按以下方式批量处理电子邮件在Exchange中使用EWS 了解详情。
Yes, you can. ExchangeService.UpdateItems
is the method you want to use here. See How to: Process email messages in batches by using EWS in Exchange for details.
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