Updating contacts by using the EWS Managed API 2.0

Example

// Bind to an existing meeting request by using its unique identifier.
Contact contact = Contact.Bind(service, new ItemId("AAMkA="));

// Update the contact's surname and company name.
contact.Surname = "Johnson";
contact.CompanyName = "Contoso";

// Update the contact's business phone number.
contact.PhoneNumbers[PhoneNumberKey.BusinessPhone] = "444-444-4444";

// Update the contact's second email address.
contact.EmailAddresses[EmailAddressKey.EmailAddress2] = new EmailAddress("brian_2@contoso.com");

// Update the contact's first IM address.
contact.ImAddresses[ImAddressKey.ImAddress1] = "brianIM1@contoso.com";

// Update the contact's business address.
PhysicalAddressEntry PABusinessEntry = new PhysicalAddressEntry();
PABusinessEntry.Street = "4567 Contoso Way";
PABusinessEntry.City = "Redmond";
PABusinessEntry.State = "OH";
PABusinessEntry.PostalCode = "33333";
PABusinessEntry.CountryOrRegion = "United States of America";
contact.PhysicalAddresses[PhysicalAddressKey.Business] = PABusinessEntry;

// Save the contact.
contact.Update(ConflictResolutionMode.AlwaysOverwrite);

The following example shows the XML that is sent by using the Update(ConflictResolutionMode) method. The UniqueId() and ChangeKey() member values have been shortened for readability.

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:m="https://schemas.microsoft.com/exchange/services/2006/messages" 
    xmlns:t="https://schemas.microsoft.com/exchange/services/2006/types" 
    xmlns:soap="https://schemas.xmlsoap.org/soap/envelope/">
  <soap:Header>
    <t:RequestServerVersion Version="Exchange2007_SP1" />
    <t:TimeZoneContext>
      <t:TimeZoneDefinition Id="Eastern Standard Time" />
    </t:TimeZoneContext>
  </soap:Header>
  <soap:Body>
    <m:UpdateItem MessageDisposition="SaveOnly" ConflictResolution="AlwaysOverwrite">
      <m:ItemChanges>
        <t:ItemChange>
          <t:ItemId Id="AAMkA=" ChangeKey="EQAAA" />
          <t:Updates>
            <t:SetItemField>
              <t:FieldURI FieldURI="contacts:Surname" />
              <t:Contact>
                <t:Surname>Johnson</t:Surname>
              </t:Contact>
            </t:SetItemField>
            <t:SetItemField>
              <t:FieldURI FieldURI="contacts:CompanyName" />
              <t:Contact>
                <t:CompanyName>Contoso</t:CompanyName>
              </t:Contact>
            </t:SetItemField>
            <t:SetItemField>
              <t:IndexedFieldURI FieldURI="contacts:EmailAddress" FieldIndex="EmailAddress2" />
              <t:Contact>
                <t:EmailAddresses>
                  <t:Entry Key="EmailAddress2">brian_2@contoso.com</t:Entry>
                </t:EmailAddresses>
              </t:Contact>
            </t:SetItemField>
          </t:Updates>
        </t:ItemChange>
      </m:ItemChanges>
    </m:UpdateItem>
  </soap:Body>
</soap:Envelope>

The following example shows the XML response that is returned when using the Update(ConflictResolutionMode) method. The UniqueId() and ChangeKey() member values have been shortened for readability.

<?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="https://schemas.xmlsoap.org/soap/envelope/">
  <s:Header>
    <h:ServerVersionInfo MajorVersion="15" MinorVersion="0" MajorBuildNumber="731" MinorBuildNumber="10" Version="V2_3" 
        xmlns:h="https://schemas.microsoft.com/exchange/services/2006/types" 
        xmlns="https://schemas.microsoft.com/exchange/services/2006/types" 
        xmlns:xsd="http://www.w3.org/2001/XMLSchema" 
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" />
  </s:Header>
  <s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <m:UpdateItemResponse xmlns:m="https://schemas.microsoft.com/exchange/services/2006/messages" 
        xmlns:t="https://schemas.microsoft.com/exchange/services/2006/types">
      <m:ResponseMessages>
        <m:UpdateItemResponseMessage ResponseClass="Success">
          <m:ResponseCode>NoError</m:ResponseCode>
          <m:Items>
            <t:Contact>
              <t:ItemId Id="AAMkA=" ChangeKey="EQAA" />
            </t:Contact>
          </m:Items>
          <m:ConflictResults>
            <t:Count>0</t:Count>
          </m:ConflictResults>
        </m:UpdateItemResponseMessage>
      </m:ResponseMessages>
    </m:UpdateItemResponse>
  </s:Body>
</s:Envelope>

Compiling the code

For information about compiling this code, see Getting started with the EWS Managed API 2.0.

Robust programming

• Write appropriate error handling code for common search errors.

• Review the client request XML that is sent to the Exchange server.

• Review the server response XML that is sent from the Exchange server.

• Set the service binding as shown in Setting the Exchange service URL by using the EWS Managed API 2.0. Do not hard code URLs because if mailboxes move, they might be serviced by a different Client Access server. If the client cannot connect to the service, retry setting the binding by using the AutodiscoverUrl(String) method.

• Set the target Exchange Web Services schema version by setting the requestedServerVersion parameter of the ExchangeService constructor. For more information, see Versioning EWS requests by using the EWS Managed API 2.0.

Security

• Use HTTP with SSL for all communication between client and server.

• Always validate the server certificate that is used for establishing the SSL connections. For more information, see Validating X509 certificates by using the EWS Managed API 2.0.

• Do not include user names and passwords in trace files.

• Verify that Autodiscover lookups that use HTTP GET to find an endpoint always prompt for user confirmation; otherwise, they should be blocked.

See also

Concepts