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Accessing Outlook items from C# .NET

The following demostrates how to retreive data from items within an Outlook folder (called “MySubFolderName” under the Inbox folder) using .NET:

First add a reference to the Outlook COM object your project:

  1. In VS.NET right click on References and choose Add Reference.
  2. Select the COM tab
  3. Choose “Microsoft Outlook 11.0 Object Library” (this is for MS Office 2003 – I think 10.0 is for Office XP) and click Select.
  4. Click OK.

Note that you can access any Outlook/Exchange object types, eg Appointments, Notes, Tasks, Emails etc – just use intellisense to select which one (eg Microsoft.Office.Interop.Outlook. … – see definition of variable called ‘item’ below).

Here’s the code:

Microsoft.Office.Interop.Outlook.Application app = null;
Microsoft.Office.Interop.Outlook._NameSpace ns = null;
Microsoft.Office.Interop.Outlook.PostItem item = null;
Microsoft.Office.Interop.Outlook.MAPIFolder inboxFolder = null;
Microsoft.Office.Interop.Outlook.MAPIFolder subFolder = null;

try {
  app = new Microsoft.Office.Interop.Outlook.Application();
  ns = app.GetNamespace("MAPI");
  ns.Logon(null, null, false, false);

  inboxFolder = ns.GetDefaultFolder(
  subFolder =
      inboxFolder.Folders["MySubFolderName"];  // folder.Folders[1]; also works
  Console.WriteLine("Folder Name: {0}, EntryId: {1}", subFolder.Name,
  Console.WriteLine("Num Items: {0}", subFolder.Items.Count.ToString());

  for (int i = 1; i <= subFolder.Items.Count; i++) {
    item = (Microsoft.Office.Interop.Outlook.PostItem)subFolder.Items[i];
    Console.WriteLine("Item: {0}", i.ToString());
    Console.WriteLine("Subject: {0}", item.Subject);
    Console.WriteLine("Sent: {0} {1}" item.SentOn.ToLongDateString(),
    Console.WriteLine("Categories: {0}", item.Categories);
    Console.WriteLine("Body: {0}", item.Body);
    Console.WriteLine("HTMLBody: {0}", item.HTMLBody);
} catch (System.Runtime.InteropServices.COMException ex) {
} finally {
  ns = null;
  app = null;
  inboxFolder = null;



posted on Friday, May 26, 2006 10:35 AM

This article is part of the GWB Archives. Original Author:  Tim Huffam

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