如何：以编程方式在特定文件夹中搜索
此代码示例使用 Find 和 FindNext 方法在**“收件箱”**中的电子邮件的主题字段中搜索文本。此方法使用字符串筛选器检查字母 T 是否为 Subject 文本的开头字母。
**适用于：**本主题中的信息适用于 Outlook 2013 和 Outlook 2010 的应用程序级项目。有关更多信息，请参见按 Office 应用程序和项目类型提供的功能。
示例
Private Sub SearchInBox()
Dim inbox As Outlook.MAPIFolder = Me.Application.ActiveExplorer().Session. _
GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox)
Dim items As Outlook.Items = inbox.Items
Dim mailItem As Outlook.MailItem = Nothing
Dim folderItem As Object
Dim subjectName As String = String.Empty
Dim filter As String = "[Subject] > 's' And [Subject] <'u'"
folderItem = items.Find(filter)
While (folderItem IsNot Nothing)
mailItem = TryCast(folderItem, Outlook.MailItem)
If mailItem IsNot Nothing Then
subjectName = vbCrLf & mailItem.Subject
End If
folderItem = items.FindNext()
End While
subjectName = "The following e-mail messages were found: " _
& subjectName
MsgBox(subjectName)
End Sub
private void SearchInBox()
{
Outlook.MAPIFolder inbox = this.Application.ActiveExplorer().Session.
GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox);
Outlook.Items items = inbox.Items;
Outlook.MailItem mailItem = null;
object folderItem;
string subjectName = string.Empty;
string filter = "[Subject] > 's' And [Subject] <'u'";
folderItem = items.Find(filter);
while (folderItem != null)
{
mailItem = folderItem as Outlook.MailItem;
if (mailItem != null)
{
subjectName += "\n" + mailItem.Subject;
}
folderItem = items.FindNext();
}
subjectName = " The following e-mail messages were found: " +
subjectName;
MessageBox.Show(subjectName);
}