CRM email with pdf report attachment

1.step: In Visual Studio creating new WORKFLOW ACTIVITY LIBRARY

2.step: Add references Microsoft.Crm.Sdk, Microsoft.Crm.SdkTypeProxy;

3.step: Add web reference http://<reportservername>/ReportServer/ReportExecution2005.asmx

4.step: Debug this code

5.step: Run Plugin Registration Tool and register new assembly (that will be dll created from this source in path where this project will be created in bin folder)

6.step: Create new Workflow in crm with this custom workflow activity as new step

And here goes full code:

using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Crm.Workflow;
using System.Workflow.Activities;
using System.Workflow.ComponentModel;
using Microsoft.Crm.Sdk;
using Microsoft.Crm.SdkTypeProxy;
using Microsoft.Crm.SdkTypeProxy.Metadata;
using Microsoft.Crm.Sdk.Metadata;
using SendingReport;
using System.IO;
using System.Web.Services.Protocols;
using Microsoft.Crm.Sdk.Query;
using CustomEmail.ReportService;


namespace SendingReport
{
    [CrmWorkflowActivity("Send PDF Report")] // Name of custom workflow activity
    public class SendReport : SequenceActivity
    {

        protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
        {
            IContextService contextService = (IContextService)executionContext.GetService(typeof(IContextService));
            IWorkflowContext context = contextService.Context;
            ICrmService service = context.CreateCrmService();

            Guid incidentId = context.PrimaryEntityId; // Get Id of current entity on which workflow will run

            byte[] result = null;

            // API Reporting Service
            CustomEmail.ReportService.ReportExecutionService rs = new ReportExecutionService();
            //rs.Credentials = System.Net.CredentialCache.DefaultCredentials;
            rs.Credentials = new System.Net.NetworkCredential("username", "password", "domain");
            rs.Url = "http://crmservername/ReportServer/ReportExecution2005.asmx";

            // Setting Report Parameters
            // 1. Report path from report server
            // 2. Output format
            // 3. Device Info
            string reportPath = "/path/reportname"; //example (/myreports/jobreport)
            string format = "PDF";
            string historyID = null;
            string devInfo = @"<DeviceInfo><Toolbar>False</Toolbar></DeviceInfo>";

            // Passing parameters to report
            ParameterValue[] parameters = new ParameterValue[1]; // Define parameters
            parameters[0] = new ParameterValue();
            parameters[0].Name = "incidentid"; // incident GUID
            parameters[0].Value = incidentId.ToString();


            // Security settings
            DataSourceCredentials[] credentials = null;
            string showHideToggle = null;
            string encoding;
            string mimeType;
            string extension;
            Warning[] warnings = null;
            ParameterValue[] reportHistoryParameters = null;
            string[] streamIDs = null;

            ExecutionInfo execInfo = new ExecutionInfo();
            ExecutionHeader execHeader = new ExecutionHeader();
            rs.ExecutionHeaderValue = execHeader;
            execInfo = rs.LoadReport(reportPath, historyID);
            rs.SetExecutionParameters(parameters, "en-us");
            String SessionId = rs.ExecutionHeaderValue.ExecutionID;

            try
            {
                // Generating report
                result = rs.Render(format, devInfo, out extension, out encoding, out mimeType, out warnings, out
            streamIDs);
            }
            catch (SoapException err)
            {
                throw new Exception(err.Detail.OuterXml);
            }

            //Creating email
            email mail = new email();

            activityparty mailfrom = new activityparty();
            mailfrom.partyid = new Lookup();
            mailfrom.partyid.type = EntityName.systemuser.ToString();
            mailfrom.partyid.Value = Sender.Value;
            mail.from = new activityparty[] { mailfrom };

            activityparty mailto = new activityparty();
            mailto.partyid = new Lookup();
            mailto.partyid.type = EntityName.contact.ToString();
            mailto.partyid.Value = MailRecipient.Value;
            mail.to = new activityparty[] { mailto };

            activityparty mailcc = new activityparty();
            mailcc.partyid = new Lookup();
            mailcc.partyid.type = EntityName.contact.ToString();
            mailcc.partyid.Value = MailRecipientCC.Value;
            mail.cc = new activityparty[] { mailcc };
       
            //Get attributes from current entity
            incident ret = (incident)service.Retrieve(EntityName.incident.ToString(), incidentId, new AllColumns());

            mail.subject = "Job report";
            mail.sender = "example@someone.com";
            mail.description = "Here goes mail body description for: " + ret.ticketnumber.ToString();           

            mail.ownerid = new Owner();
            mail.ownerid.type = EntityName.systemuser.ToString();
            mail.ownerid.Value = context.UserId;

            Guid createdEmailGuid = service.Create(mail);

            // Attaching Pdf report
            activitymimeattachment setupEmailAttachment = new activitymimeattachment();
            setupEmailAttachment.subject = "Attachment subject";
            setupEmailAttachment.filename = "Reportname.pdf";
            setupEmailAttachment.body = Convert.ToBase64String(result);
            setupEmailAttachment.filesize = new CrmNumber(Convert.ToInt32(result.Length.ToString()));
            setupEmailAttachment.mimetype = "text/plain";
            setupEmailAttachment.attachmentnumber = new CrmNumber();
            setupEmailAttachment.attachmentnumber.Value = 1;
            setupEmailAttachment.activityid = new Lookup();
            setupEmailAttachment.activityid.type = EntityName.email.ToString();
            setupEmailAttachment.activityid.Value = createdEmailGuid;
            service.Create(setupEmailAttachment);

        // Sending email with attachment
            SendEmailRequest sendrequest = new SendEmailRequest();
            sendrequest.EmailId = createdEmailGuid;
            sendrequest.TrackingToken = "";
            sendrequest.IssueSend = true;

            service.Execute(sendrequest);


            return ActivityExecutionStatus.Closed;
        }

    // Define lookup fields [from, to, cc], these you will use when setting parameters in CRM for this workflow   

        public static DependencyProperty SenderProperty = DependencyProperty.Register("Sender", typeof

(Lookup), typeof(SendReport));

        [CrmInput("Sender")]
        [CrmReferenceTarget("systemuser")]
        public Lookup Sender
        {
            get
            {
                return (Lookup)base.GetValue(SenderProperty);
            }
            set
            {
                base.SetValue(SenderProperty, value);
            }
        }

        public static DependencyProperty MailRecipientProperty = DependencyProperty.Register("MailRecipient", typeof

(Lookup), typeof(SendReport));

        [CrmInput("MailRecipient")]
        [CrmReferenceTarget("contact")]
        public Lookup MailRecipient
        {
            get
            {
                return (Lookup)base.GetValue(MailRecipientProperty);
            }
            set
            {
                base.SetValue(MailRecipientProperty, value);
            }
        }

        public static DependencyProperty MailRecipientCCProperty = DependencyProperty.Register("MailRecipientCC", typeof

(Lookup), typeof(SendReport));

        [CrmInput("MailRecipientCC")]
        [CrmReferenceTarget("contact")]
        public Lookup MailRecipientCC
        {
            get
            {
                return (Lookup)base.GetValue(MailRecipientCCProperty);
            }
            set
            {
                base.SetValue(MailRecipientCCProperty, value);
            }
        }
    }
}