I'm working on an Outlook 2007 add-in. I found some code to loop through all the folders but I have not been able to figure out how to loop inside any given folder to examine the MailItem objects (ultimately, I want to save the emails elsewhere and modify the .Subject property).
Here is what I have so far:
private void btnFolderWalk_Click(object sender, EventArgs e)
{
// Retrieve the name of the top-level folder (Inbox) , for
// the purposes of this demonstration.
Outlook.Folder inbox = Application.Session.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderInbox)
as Outlook.Folder; // Cast the MAPI folder returned as an Outlook folder
// Retrieve a reference to the top-level folder.
if (inbox != null)
{
Outlook.Folder parent = inbox.Parent as Outlook.Folder; // the mailbox itself
if (parent != null)
{
RecurseThroughFolders(parent, 0);
}
}
}
private void RecurseThroughFolders(Outlook.Folder theRootFolder, int depth)
{
if (theRootFolder.DefaultItemType != Outlook.OlItemType.olMailItem)
{
return;
}
lbMail.Items.Add(theRootFolder.FolderPath);
foreach (Object item in theRootFolder.Items)
{
if (item.GetType() == typeof(Outlook.MailItem))
{
Outlook.MailItem mi = (Outlook.MailItem)item;
lbMail.Items.Add(mi.Subject);
//-------------------------------------------------------------------------
// mi.Subject is actually a folder name as it's full path.
// How to "open it" to get emails?
// need loop here to modify .Subject of MailItem(s) in certain subfolders
//-------------------------------------------------------------------------
}
}
foreach (Outlook.Folder folder in theRootFolder.Folders)
{
RecurseThroughFolders(folder, depth + 1);
}
}
I'm using a listbox at this stage of working things out and the output currently looks like this below. I want to "process" the email messages of the "Projectnnnnnn" folders.
\\Personal Folders
\\Personal Folders\Deleted Items
\\Personal Folders\Inbox
\\Personal Folders\Inbox\MySubFolder
\\Personal Folders\Inbox\MySubFolder\Project456212
\\Personal Folders\Inbox\MySubFolder\Project318188
\\Personal Folders\Inbox\Outbox
\\Personal Folders\Inbox\SentItems
EDIT:
I fixed this with a slight change in the loop above (i.e. removing the check that the current item is a mailitem):
foreach (Object item in theRootFolder.Items)
{
Outlook.MailItem mi = (Outlook.MailItem)item;
string modifiedSubject = "Modifed Subject: " + mi.Subject;
lbMail.Items.Add(modifiedSubject);
mi.Subject = modifiedSubject;
mi.Save();
// insert call webservice here to upload modified MailItem to new data store
}