Create message with custom property

The following example shows you how to create message and set custom property.

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);

            try
            {
                PropertyName myPropertyName = new PropertyName("MyCustomProperty", StandardPropertySet.PublicStrings, MapiPropertyType.String);
                ExtendedProperty myProperty = new ExtendedProperty(myPropertyName, "value1");

                Message message = new Message();
                message.Subject = "Test";
                message.Body = new Body("Body text");
                message.ToRecipients.Add(new Mailbox("John@mydomain.com"));
                message.CcRecipients.Add(new Mailbox("Mark@mydomain.com"));
                message.ExtendedProperties.Add(myProperty);

                ItemId itemId = service.CreateItem(message);
            }
            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.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)

            Try

                Dim myPropertyName As New PropertyName("MyCustomProperty", StandardPropertySet.PublicStrings, MapiPropertyType.[String])
                Dim myProperty As New ExtendedProperty(myPropertyName, "value1")

                Dim message As New Message()
                message.Subject = "Test"
                message.Body = New Body("Body text")
                message.ToRecipients.Add(New Mailbox("John@mydomain.com"))
                message.CcRecipients.Add(New Mailbox("Mark@mydomain.com"))
                message.ExtendedProperties.Add(myProperty)

                Dim itemId As ItemId = service.CreateItem(message)

            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 > Create message with custom property

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