Search for unread messages

The following example shows you how to search for unread messages in user's Inbox folder.

C# example

using System;
using System.Net;
using Independentsoft.Webdav.Exchange;
using Independentsoft.Webdav.Exchange.ContentClass;
using Independentsoft.Webdav.Exchange.Properties;
using Independentsoft.Webdav.Exchange.Sql;

namespace Sample
{
    class Program
    {
        static void Main(string[] args)
        {
            NetworkCredential credential = new NetworkCredential("username", "password");
            WebdavSession session = new WebdavSession(credential);
            session.UserMailbox = "https://myserver/exchange/emailaddress";

            Resource resource = new Resource(session);
            Mailbox myMailbox = resource.Mailbox;

            PropertyName[] propertyName = new PropertyName[6];
            propertyName[0] = MessageProperty.ContentClass;
            propertyName[1] = MessageProperty.Subject;
            propertyName[2] = MessageProperty.Body;
            propertyName[3] = MessageProperty.FromEmail;
            propertyName[4] = MessageProperty.DateReceived;
            propertyName[5] = MessageProperty.Read;

            Select select = new Select(propertyName);
            From from = new From(myMailbox.Inbox);
            Where where = new Where();

            Condition condition1 = new Condition(MessageProperty.ContentClass, Operator.Equals, ContentClassType.Message);
            Condition condition2 = new Condition(MessageProperty.Read, Operator.Equals, false);

            where.Add(condition1);
            where.Add(LogicalOperator.AND);
            where.Add(condition2);

            SqlQuery sqlQuery = new SqlQuery(select, from, where);
            MultiStatus multiStatus = resource.Search(sqlQuery);

            SearchResult searchResult = new SearchResult(multiStatus, propertyName);
            SearchResultRecord[] allRecords = searchResult.Record;

            for (int i = 0; i < allRecords.Length; i++)
            {
                //message URL
                string messageUrl = allRecords[i].Address;
                Console.WriteLine("messageUrl=" + messageUrl);

                //message's properties
                Property[] property = allRecords[i].Property;

                Console.WriteLine("Subject=" + property[1].Value);
                Console.WriteLine("Body=" + property[2].Value);
                Console.WriteLine("FromEmail=" + property[3].Value);
                Console.WriteLine("DateReceived=" + property[4].Value);

                //If you want to set message as read uncomment this part
                //Property readProperty = new Property(MessageProperty.Read.Name, MessageProperty.Read.Namespace, "1");
                //resource.SetProperty(messageUrl, readProperty);
            }

            Console.Read();
        }
    }
}

VB example

Imports System
Imports System.Net
Imports Independentsoft.Webdav.Exchange
Imports Independentsoft.Webdav.Exchange.ContentClass
Imports Independentsoft.Webdav.Exchange.Properties
Imports Independentsoft.Webdav.Exchange.Sql

Module Module1
    Sub Main(ByVal args() As String)

        Dim credential As NetworkCredential = New NetworkCredential("username", "password")
        Dim session As WebdavSession = New WebdavSession(credential)
        session.UserMailbox = "https://myserver/exchange/emailaddress"

        Dim resource As Resource = New Resource(session)
        Dim myMailbox As Mailbox = resource.Mailbox

        Dim propertyName() As PropertyName = New PropertyName(5) {}
        propertyName(0) = MessageProperty.ContentClass
        propertyName(1) = MessageProperty.Subject
        propertyName(2) = MessageProperty.Body
        propertyName(3) = MessageProperty.FromEmail
        propertyName(4) = MessageProperty.DateReceived
        propertyName(5) = MessageProperty.Read

        Dim selectStatement As Independentsoft.Webdav.Exchange.Sql.Select = New Independentsoft.Webdav.Exchange.Sql.Select(propertyName)
        Dim from As From = New From(myMailbox.Inbox)
        Dim where As Where = New Where

        Dim condition1 As Condition = New Condition(MessageProperty.ContentClass, [Operator].Equals, ContentClassType.Message)
        Dim condition2 As Condition = New Condition(MessageProperty.Read, [Operator].Equals, False)

        where.Add(condition1)
        where.Add(LogicalOperator.AND)
        where.Add(condition2)

        Dim query As SqlQuery = New SqlQuery(selectStatement, from, where)
        Dim multiStatus As MultiStatus = resource.Search(query)

        Dim searchResult As SearchResult = New SearchResult(multiStatus, propertyName)
        Dim allRecords() As SearchResultRecord = searchResult.Record

        Dim i As Integer
        For i = 0 To allRecords.Length - 1
            'message URL
            Dim messageUrl As String = allRecords(i).Address
            Console.WriteLine("messageUrl=" & messageUrl)

            'message's properties
            Dim properties() As Independentsoft.Webdav.Exchange.Property = allRecords(i).Property

            Console.WriteLine("Subject=" & properties(1).Value)
            Console.WriteLine("Body=" & properties(2).Value)
            Console.WriteLine("FromEmail=" & properties(3).Value)
            Console.WriteLine("DateReceived=" & properties(4).Value)

            'If you want to set message as read uncomment this part
            'Dim readProperty As Independentsoft.Webdav.Exchange.Property = New Independentsoft.Webdav.Exchange.Property(MessageProperty.Read.Name, MessageProperty.Read.Namespace, "1")
            'resource.SetProperty(messageUrl, readProperty)
        Next

        Console.Read()

    End Sub
End Module

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WebDAV .NET for Exchange > Tutorial > Search for unread messages