Notice: This website is an unofficial Microsoft Knowledge Base (hereinafter KB) archive and is intended to provide a reliable access to deleted content from Microsoft KB. All KB articles are owned by Microsoft Corporation. Read full disclaimer for more details.

How to create a contact with ADO and the ExOLEDB provider by using Visual C#

View products that this article applies to.

This article was previously published under Q310199
Caution ADO and ADO MD have not been fully tested in a Microsoft .NET Framework environment. They may cause intermittent issues, especially in service-based applications or in multithreaded applications. The techniques that are discussed in this article should only be used as a temporary measure during migration to ADO.NET. You should only use these techniques after you have conducted complete testing to make sure that there are no compatibility issues. Any issues that are caused by using ADO or ADO MD in this manner are unsupported. For more information, see the following article in the Microsoft Knowledge Base:
840667 ( ) You receive unexpected errors when using ADO and ADO MD in a .NET Framework application

↑ Back to the top


This article describes how to create a contact with ActiveX Data Objects (ADO) and the Microsoft Exchange OLE DB (ExOLEDB) provider by using Microsoft Visual C# .

↑ Back to the top

More information

To create a contact with ADO and the EXOLEDB provider by using Visual C# , follow these steps:
  1. Start Microsoft Visual Studio .NET or Microsoft Visual Studio 2005.
  2. On the File menu, point to New, and then click Project.
  3. In the Visual C# Projects types list, click Console Application.

    By default, Class1.cs is created.

    Note In Microsoft Visual C# 2005, click Console Application under Visual C#. By default, Program.cs is created.
  4. Add a reference to the Microsoft ActiveX Data Objects 2.5 Library. To do so, follow these steps:
    1. On the Project menu, click Add Reference.
    2. Click the COM tab, locate Microsoft ActiveX Data Objects 2.5 Library, and then click Select.

      Note In Microsot Visual C# 2005, you do not have to click Select .
    3. In the Add References dialog box, click OK.
    4. If you are prompted to generate wrappers for the libraries that you selected, click Yes.
    Note Microsoft Collaboration Data Objects for Exchange 2000 (CDOEX) is supported only through a COM interop.
  5. In the code window, replace the code with the following:
    using System;
    namespace Samples
    	class Class1
    		static void Main(string[] args)
                            // TODO: Replace with your item URL
    			string sURL = "http:/<ExchServer>/Exchange/<UserAlias>/Contacts/Test.eml";
    			ADODB.Connection oCn = new ADODB.Connection();
    			ADODB.Record oRc = new ADODB.Record();
    			ADODB.Fields oFields;
    			oCn.Provider = "exoledb.datasource";
    			oCn.Open(sURL, "", "", 0);  
    			if(oCn.State == 1)
    				Console.WriteLine("Connection Successful");
    				Console.WriteLine("Connection Unsuccessful");
    			oRc.Open(sURL, oCn, 
    				"", "");
    			oFields = oRc.Fields;
    			oFields["DAV:contentclass"].Value = "urn:content-classes:person";
    			oFields[""].Value = "IPM.Contact";
    			oFields["urn:schemas:contacts:cn"].Value = "David Jones";
    			oFields["urn:schemas:contacts:nickname"].Value = "Dave";
    			oFields["urn:schemas:contacts:title"].Value = "Engineer";
    			oFields["urn:schemas:contacts:department"].Value = "Department Name";
    			oFields["urn:schemas:contacts:email1"].Value = "";
    			oCn = null;
    			oRc = null;
    			oFields = null;
    			catch (Exception e)
    				Console.WriteLine("{0} Exception caught.", e);
  6. Search for TODO in the code, and then modify the code for your environment.
  7. Press F5 to build and to run the program.
  8. Make sure that the contact is created in the specified folder.

↑ Back to the top


For more information, visit the following MSDN Web site: For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
813349� Support policy for Microsoft Exchange APIs with .NET Framework applications

↑ Back to the top

Keywords: KB310199, kbhowto, kbcode, kbmsg

↑ Back to the top

Article Info
Article ID : 310199
Revision : 6
Created on : 11/29/2007
Published on : 11/29/2007
Exists online : False
Views : 398