protected void Page_Load(object sender, EventArgs e) { Guid assignmentId = new Guid(Request.QueryString["id"]); AssignmentEntity entity = null; try { entity = (AssignmentEntity)BusinessManager.Load(AssignmentEntity.ClassName, (PrimaryKeyId)assignmentId); } catch { } if (entity != null && entity.OwnerDocumentId.HasValue) { Response.Redirect(CHelper.GetAssignmentLink(assignmentId.ToString(), (int)ObjectTypes.Document, entity.OwnerDocumentId.Value)); } else { Response.Redirect("~/Common/NotExistingId.aspx?AssignmentId=" + assignmentId.ToString()); } }