Programmatically search within a specific folder
This code example uses the Find and FindNext methods to search for text in the subject field of e-mail messages that are in the Inbox. This method uses a string filter to check for the letter T as the starting letter of the Subject text.
Applies to: The information in this topic applies to VSTO Add-in projects for Outlook. For more information, see Features available by Office application and project type.
Example
private void SearchInBox()
{
Outlook.Folder 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);
}