Convert ItemId to OWA Id

The following example shows you how to use method ConvertId.

C# example

using System;
using System.Net;
using Independentsoft.Exchange;

namespace Sample
{
    class Program
    {
        static void Main(string[] args)
        {
            NetworkCredential credential = new NetworkCredential("username", "password");
            Service service = new Service("https://myserver/ews/Exchange.asmx", credential);

            service.RequestServerVersion = RequestServerVersion.Exchange2010SP1;

            try
            {
                FindItemResponse response = service.FindItem(StandardFolder.Inbox, new ItemShape(ShapeType.Id));

                for (int i = 0; i < response.Items.Count; i++)
                {
                    AlternateId sourceId = new AlternateId(IdFormat.EwsId, response.Items[i].ItemId.Id, "John@domain.com");
  
                    ConvertIdResponse convertIdResponse = service.ConvertId(sourceId, IdFormat.OwaId);

                    string owaId = convertIdResponse.AlternateId.Id;

                    Console.WriteLine("Outlook Web App ItemId:" + owaId);                    
                }

                Console.Read();
            }
            catch (ServiceRequestException ex)
            {
                Console.WriteLine("Error: " + ex.Message);
                Console.WriteLine("Error: " + ex.XmlMessage);
                Console.Read();
            }
            catch (WebException ex)
            {
                Console.WriteLine("Error: " + ex.Message);
                Console.Read();
            }
        }
    }
}

VB example

Imports System
Imports System.IO
Imports System.Net
Imports Independentsoft.Exchange

Namespace Sample
    Class Module1
        Shared Sub Main(ByVal args As String())

            Dim credential As New NetworkCredential("username", "password")
            Dim service As New Service("https://myserver/ews/Exchange.asmx", credential)

            service.RequestServerVersion = RequestServerVersion.Exchange2010SP1

            Try
                Dim response As FindItemResponse = service.FindItem(StandardFolder.Inbox, New ItemShape(ShapeType.Id))

                For i As Integer = 0 To response.Items.Count - 1

                    Dim sourceId As AlternateId = New AlternateId(IdFormat.EwsId, response.Items(i).ItemId.Id, "John@domain.com")

                    Dim convertIdResponse As ConvertIdResponse = service.ConvertId(sourceId, IdFormat.OwaId)

                    Dim owaId As String = ConvertIdResponse.AlternateId.Id

                    Console.WriteLine("Outlook Web App ItemId:" & owaId)
                Next

                Console.Read()

            Catch ex As ServiceRequestException
                Console.WriteLine("Error: " & ex.Message)
                Console.WriteLine("Error: " & ex.XmlMessage)
                Console.Read()
            Catch ex As WebException
                Console.WriteLine("Error: " & ex.Message)
                Console.Read()
            End Try

        End Sub
    End Class
End Namespace

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Exchange Web Services .NET > Tutorial > Convert ItemId to OWA Id

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