从OLM存储中提取消息更灵活！Aspose.Email v20.3新版上线 | 附下载

Aspose.Email for .NET更新至v20.3，将流接口添加到OLMClient，允许使用ExchangeQueryBuilder类按电子邮件附件名称查询，欢迎下载体验。

Aspose.Email for .NET是一套完整的电子邮件处理控件，用于构建跨平台应用程序，无需使用Microsoft Outlook即可创建，操作，转换和传输电子邮件。API提供电子邮件处理功能，例如添加，提取或删除邮件对象中的附件，通过添加或删除收件人或更改主题等来自定义邮件头。

Aspose.Email for .NET更新至v20.3，将流接口添加到OLMClient，允许使用ExchangeQueryBuilder类按电子邮件附件名称查询，欢迎下载体验。

新增与改善

OLM文件是 Outlook for Mac 的 存储文件格式。OLM文件正在存储本地数据，例如电子邮件，附件，便笺，日历数据，联系人，任务，日记等。

OLM文件仅由Mac Outlook使用。Windows版Outlook无法访问或打开它。Windows版本的Outlook仅支持用于存储数据的PST文件格式。尽管如此，仍然可以通过Aspose.Email for .NET使用OLM文件。

现在，从OLM存储中提取消息更加灵活和快捷。

一个OlmMessageInfo类已被添加，其提供了有关在存储的消息的简要信息。该OlmFolder类延长通过以下方法：

//gets the subfolder by nameOlmFolder GetSubFolder(string subfolderName, bool ignoreCase);//exposes the enumerator, which supports an iteration of MapiMessages in the current folderIEnumerable<MapiMessage> EnumerateMapiMessages();//exposes the enumerator, which supports an iteration of OlmMessageInfo's in the current folderIEnumerable<OlmMessageInfo> EnumerateMessages();//exposes the enumerator, which supports an iteration of OlmMessageInfo's within a given rangeIEnumerable<OlmMessageInfo> EnumerateMessages(int startIndex, int count);//exposes the enumerator, which supports an iteration of OlmMessageInfo's by search criteriaIEnumerable<OlmMessageInfo> EnumerateMessages(MailQuery query);

该 OlmStorage 类延长通过以下方法：

//load OLM storage from file static OlmStorage FromFile(string fileName);  //load OLM from stream static OlmStorage FromStream(Stream stream);  //gets the folder hierarchy ListGetFolders();  //gets the folder by name OlmFolder GetFolder(string name, bool ignoreCase);  //extracts the MapiMessage from OLM storage MapiMessage ExtractMapiMessage(OlmMessageInfo messageInfo);

以下示例显示了新方法的使用：

// Enumerates all messages in a given folderusing (OlmStorage olm = OlmStorage.FromFile(fileName)){    OlmFolder inbox = olm.GetFolder("inbox", true);    foreach (OlmMessageInfo messageInfo in inbox.EnumerateMessages())    {        Console.WriteLine(messageInfo.Subject);    }}// Enumerates a range of messages in a given folderusing (OlmStorage olm = OlmStorage.FromFile(fileName)){    OlmFolder inbox = olm.GetFolder("inbox", true);    int startIndex = 10;    int count = 100;    foreach (OlmMessageInfo messageInfo in inbox.EnumerateMessages(startIndex, count))    {        Console.WriteLine(messageInfo.Subject);    }}// Enumerates messages by search criteriausing (OlmStorage olm = OlmStorage.FromFile(fileName)){    OlmFolder inbox = olm.GetFolder("inbox", true);     MailQueryBuilder mailQueryBuilder = new MailQueryBuilder();    mailQueryBuilder.Subject.Contains("invitation");    mailQueryBuilder.From.Contains("Mark");    foreach (OlmMessageInfo messageInfo in inbox.EnumerateMessages(mailQueryBuilder.GetQuery()))    {        Console.WriteLine(messageInfo.Subject);    }}// Enumerates all messages and the extraction of some of themusing (OlmStorage olm = OlmStorage.FromFile(fileName)){    OlmFolder inbox = olm.GetFolder("inbox", true);    foreach (OlmMessageInfo messageInfo in inbox.EnumerateMessages()    {      if (messageInfo.HasAttachments)      {        MapiMessage msg = olm.ExtractMessage(messageInfo);      }    }}

还想要更多吗可以点击阅读【2019 · Aspose最新资源整合】，查找需要的教程资源。如果您有任何疑问或需求，请随时加入Aspose技术交流群（），我们很高兴为您提供查询和咨询。

标签：