How to: Programmatically add an entry to Outlook contacts
Applies to: 
Visual Studio 
Visual Studio for Mac
Note
This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here
This example creates a new contact and enters data into the new contact.
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 Sub AddContact()
Dim newContact As Outlook.ContactItem = Me.Application.CreateItem(Outlook. _
OlItemType.olContactItem)
Try
With newContact
.FirstName = "Jo"
.LastName = "Berry"
.Email1Address = "somebody@example.com"
.CustomerID = "123456"
.PrimaryTelephoneNumber = "(425)555-0111"
.MailingAddressStreet = "123 Main St."
.MailingAddressCity = "Redmond"
.MailingAddressState = "WA"
.Save()
.Display(True)
End With
Catch
MsgBox("The new contact was not saved.")
End Try
End Sub
private void AddContact()
{
Outlook.ContactItem newContact = (Outlook.ContactItem)
this.Application.CreateItem(Outlook.OlItemType.olContactItem);
try
{
newContact.FirstName = "Jo";
newContact.LastName = "Berry";
newContact.Email1Address = "somebody@example.com";
newContact.CustomerID = "123456";
newContact.PrimaryTelephoneNumber = "(425)555-0111";
newContact.MailingAddressStreet = "123 Main St.";
newContact.MailingAddressCity = "Redmond";
newContact.MailingAddressState = "WA";
newContact.Save();
newContact.Display(true);
}
catch
{
MessageBox.Show("The new contact was not saved.");
}
}