How to send an email with attachement in windows phone using c#

  public async void AttachmentMethod(List<GridViewClass> viewCollection,string emailDetails)
        {
            string headerTemplate = @"""Project Id""" + "," + @"""Project Name""" + "," + @"""Type""" + "," + @"""PBID""" + "," + @"""Priority""" + "," + @"""Module""" + "," + @"""Phase""" + "," + @"""Title""" + "," + @"""Acceptance Crieteria""" + "," + @"""Status""" + "," + @"""Resource""" + "," + @"""Sprint""" + "," + @"""Comments""" + "," + @"""Estimated Hours""" + "," + @"""Actual Hours""" + "," + @"""Remaining Hours""" + " \n";
            foreach (GridViewClass item in viewCollection)
            {
                headerTemplate += "\"" + item.ProjectId.ToString() + "\"" + "," + "\"" + item.ProjectName + "\"" + "," + "\"" + item.Type + "\"" + "," + "\"" + item.PBID + "\"" + "," + "\"" + item.Priority + "\"" + "," + "\"" + item.Module + "\"" + "," + "\"" + item.Phase + "\"" + "," + "\"" + item.TaskDescription + "\"" + "," + "\"" + item.AcceptanceCriteria + "\"" + "," + "\"" + item.Status + "\"" + "," + "\"" + item.Resource + "\"" + "," + "\"" + item.SprintId + "\"" + "," + "\"" + item.Comments + "\"" + "," + "\"" + item.EstimatedHours.ToString() + "\"" + "," + "\"" + item.ActualHours.ToString() + "\"" + "," + "\"" + item.RemainigHours.ToString() + "\"" + "\n";
            }
            try
            {
                var localAppFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
                var fileHandle = await localAppFolder.CreateFileAsync("Fiel.csv", Windows.Storage.CreationCollisionOption.ReplaceExisting);
                await Windows.Storage.FileIO.WriteTextAsync(fileHandle, headerTemplate);
                //var string=await Windows.Storage.FileIO.ReadTextAsync(fileHandle);
                var emailMessage = new Windows.ApplicationModel.Email.EmailMessage();
                emailMessage.Body = "Hi Sir,Thank you so much for suggesting me";
                emailMessage.Subject = "Thank you sir..";
                var emailRecipient = new Windows.ApplicationModel.Email.EmailRecipient(emailDetails);

                var emailAttachement = new Windows.ApplicationModel.Email.EmailAttachment();
                emailAttachement.FileName = "fileHandle.csv";
                 emailAttachement.Data=fileHandle;

                emailMessage.To.Add(emailRecipient);

                emailMessage.Attachments.Add(emailAttachement);

                await Windows.ApplicationModel.Email.EmailManager.ShowComposeNewEmailAsync(emailMessage);
            }
            catch (Exception)
            {

              
            }
          

        }