/// <summary>
 /// Deprecated Method for adding a new object to the Letters EntitySet. Consider using the .Add method of the associated ObjectSet&lt;T&gt; property instead.
 /// </summary>
 public void AddToLetters(Letter letter)
 {
     base.AddObject("Letters", letter);
 }
 /// <summary>
 /// Create a new Letter object.
 /// </summary>
 /// <param name="letterGuid">Initial value of the LetterGuid property.</param>
 /// <param name="letterInfoGuid">Initial value of the LetterInfoGuid property.</param>
 /// <param name="subject">Initial value of the Subject property.</param>
 /// <param name="htmlBody">Initial value of the HtmlBody property.</param>
 /// <param name="textBody">Initial value of the TextBody property.</param>
 /// <param name="createdBy">Initial value of the CreatedBy property.</param>
 /// <param name="createdUTC">Initial value of the CreatedUTC property.</param>
 /// <param name="lastModBy">Initial value of the LastModBy property.</param>
 /// <param name="lastModUTC">Initial value of the LastModUTC property.</param>
 /// <param name="isApproved">Initial value of the IsApproved property.</param>
 /// <param name="approvedBy">Initial value of the ApprovedBy property.</param>
 /// <param name="sendCount">Initial value of the SendCount property.</param>
 public static Letter CreateLetter(global::System.Guid letterGuid, global::System.Guid letterInfoGuid, global::System.String subject, global::System.String htmlBody, global::System.String textBody, global::System.Guid createdBy, global::System.DateTime createdUTC, global::System.Guid lastModBy, global::System.DateTime lastModUTC, global::System.Boolean isApproved, global::System.Guid approvedBy, global::System.Int32 sendCount)
 {
     Letter letter = new Letter();
     letter.LetterGuid = letterGuid;
     letter.LetterInfoGuid = letterInfoGuid;
     letter.Subject = subject;
     letter.HtmlBody = htmlBody;
     letter.TextBody = textBody;
     letter.CreatedBy = createdBy;
     letter.CreatedUTC = createdUTC;
     letter.LastModBy = lastModBy;
     letter.LastModUTC = lastModUTC;
     letter.IsApproved = isApproved;
     letter.ApprovedBy = approvedBy;
     letter.SendCount = sendCount;
     return letter;
 }