Microsoft KB Archive/310259

Knowledge Base

How to use the Microsoft Outlook Object Library to retrieve an appointment by using Visual C#

Article ID: 310259

Article Last Modified on 6/29/2007

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APPLIES TO

• Microsoft Visual C# 2005
• Microsoft Visual C# .NET 2003 Standard Edition
• Microsoft Visual C# .NET 2002 Standard Edition
• Microsoft Office Outlook 2003
• Microsoft Outlook 2002 Standard Edition

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This article was previously published under Q310259

INTRODUCTION

This article describes how to use the Microsoft Outlook 2002 Object Library or the Microsoft Office Outlook 2003 Object Library to retrieve an appointment by using Microsoft Visual C#.

MORE INFORMATION

To use the Outlook 2002 Object Library or the Outlook 2003 Object Library to retrieve an appointment in a Visual C# .NET project, follow these steps:

1. In Microsoft Visual Studio .NET or in Microsoft Visual Studio 2005, create a new Console Application project:
   1. On the File menu, point to New, and then click Project.
   2. Under Project Types, click Visual C# Projects.
      
      Note In Visual Studio 2005, click Visual C# under Project Types.
   3. Under Templates, click Console Application.
   4. Click OK. By default, a file that is named Class1.cs is created.
      
      Note In Microsoft Visual C# 2005, Program.cs is created by default.
2. Add a reference to either the Outlook 2002 Object Library or the Outlook 2003 Object Library. To do this, follow these steps:
   1. On the Project menu, click Add Reference.
   2. Click the COM tab.
   3. On the COM tab, click Microsoft Outlook 11.0 Object Library if you are using Outlook 2003, or click Microsoft Outlook 10.0 Object Library if you are using Outlook 2002.
   4. Click Select.
      
      Note In Visual Studio 2005, you do not have to click Select.
   5. In the Add References dialog box, click OK.
      
      Note If you receive a message to generate wrappers for the libraries that you selected, click Yes.

3. In the Class1.cs code window, replace all the existing code with the following code:

   using System;
   using System.Reflection;     // to use Missing.Value
   
   //TO DO: If you use the Microsoft Outlook 11.0 Object Library, uncomment the following line.
   //using Outlook = Microsoft.Office.Interop.Outlook;
   
   namespace RetrieveAppointment
   {
      /// <summary>
      /// Summary description for Class1.
      /// </summary>
      public class Class1
      {
         /// <summary>
         /// The main entry point for the application.
         /// </summary>
         public static int Main(string[] args)
         {
            try
            {
               // Create the Outlook application.
               Outlook.Application oApp = new Outlook.Application();
   
               // Get the NameSpace and Logon information.
               // Outlook.NameSpace oNS = (Outlook.NameSpace)oApp.GetNamespace("mapi");
               Outlook.NameSpace oNS = oApp.GetNamespace("mapi");
   
               //Log on by using a dialog box to choose the profile.
               oNS.Logon(Missing.Value, Missing.Value, true, true); 
   
               //Alternate logon method that uses a specific profile.
               // TODO: If you use this logon method, 
               // change the profile name to an appropriate value.
               //oNS.Logon("YourValidProfile", Missing.Value, false, true); 
               
               // Get the Calendar folder.
               Outlook.MAPIFolder oCalendar = oNS.GetDefaultFolder(Outlook.OlDefaultFolders.olFolderCalendar);
   
               // Get the Items (Appointments) collection from the Calendar folder.
               Outlook.Items oItems = oCalendar.Items;
               
               // Get the first item.
               Outlook.AppointmentItem oAppt = (Outlook.AppointmentItem) oItems.GetFirst();
   
   
               // Show some common properties.
               Console.WriteLine("Subject: " + oAppt.Subject);
               Console.WriteLine("Organizer: " + oAppt.Organizer);
               Console.WriteLine("Start: " + oAppt.Start.ToString());
               Console.WriteLine("End: " + oAppt.End.ToString());
               Console.WriteLine("Location: " + oAppt.Location);
               Console.WriteLine("Recurring: " + oAppt.IsRecurring);
      
               //Show the item to pause.
               oAppt.Display(true);
   
               // Done. Log off.
               oNS.Logoff();
   
               // Clean up.
               oAppt = null;
               oItems = null;
               oCalendar = null;
               oNS = null;
               oApp = null;
            }
   
               //Simple error handling.
            catch (Exception e)
            {
               Console.WriteLine("{0} Exception caught.", e);
            }  
   
            //Default return value
            return 0;
     
         }
      }
   }

4. In this code, make any necessary changes where you see the "TO DO" comments.
5. Press F5 to build and then run the program. Outlook security features may display additional dialog boxes before the appointment information appears.

REFERENCES

For more information, visit the following Microsoft Developer Network (MSDN) Web site:

http://msdn2.microsoft.com/en-us/library/aa188489(office.10).aspx

For more information about the Outlook 2002 e-mail security features and about how those features can affect custom solutions, click the following article number to view the article in the Microsoft Knowledge Base:

290500 Description of the developer-related e-mail security features in Outlook 2002

Additional query words: csharp oom ol2002

Keywords: kbhowto kboutlookobj kbinterop kbcode KB310259

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