/// <summary>
        /// 给工作项添加审批意见
        /// </summary>
        /// <param name="item">工作项</param>
        /// <param name="approval">审批结果</param>
        /// <param name="commentText">审批意见</param>
        private void AppendComment(OThinker.H3.Instance.InstanceContext Instance, OThinker.H3.WorkItem.WorkItem item, OThinker.Data.BoolMatchValue approval, string commentText)
        {
            // 添加一个审批意见
            WorkflowTemplate.PublishedWorkflowTemplate workflow = this.Engine.WorkflowManager.GetPublishedTemplate(
                item.WorkflowCode,
                item.WorkflowVersion);
            // 审批字段
            string approvalDataItem = null;

            if (workflow != null)
            {
                OThinker.H3.DataModel.BizObjectSchema schema = this.Engine.BizObjectManager.GetPublishedSchema(item.WorkflowCode);
                approvalDataItem = workflow.GetDefaultCommentDataItem(schema, item.ActivityCode);
            }
            if (approvalDataItem != null)
            {
                // 创建审批
                OThinker.H3.Data.Comment comment = new Data.Comment();
                comment.Activity            = item.ActivityCode;
                comment.Approval            = approval;
                comment.CreatedTime         = System.DateTime.Now;
                comment.DataField           = approvalDataItem;
                comment.InstanceId          = item.InstanceId;
                comment.BizObjectId         = Instance.BizObjectId;
                comment.BizObjectSchemaCode = Instance.BizObjectSchemaCode;
                comment.OUName   = this.Engine.Organization.GetName(this.Engine.Organization.GetParent(item.Participant));
                comment.Text     = commentText;
                comment.TokenId  = item.TokenId;
                comment.UserID   = item.Participant;
                comment.UserName = item.ParticipantName;

                // 设置用户的默认签章
                Organization.Signature[] signs = this.Engine.Organization.GetSignaturesByUnit(item.Participant);
                if (signs != null && signs.Length > 0)
                {
                    foreach (Organization.Signature sign in signs)
                    {
                        if (sign.IsDefault)
                        {
                            comment.SignatureId = sign.ObjectID;
                            break;
                        }
                    }
                }
                this.Engine.BizObjectManager.AddComment(comment);
            }
        }
        private void AppendComment(WorkItem.WorkItem Item, OThinker.Data.BoolMatchValue Approval, string Comment)
        {
            WorkflowTemplate.PublishedWorkflowTemplate workflow = GetWorkflowTemplate(Item.WorkflowCode, Item.WorkflowVersion);
            // 审批字段
            string approvalDataItem = null;

            if (workflow != null)
            {
                PublishedWorkflowTemplate             workflowTemplate = this.Engine.WorkflowManager.GetPublishedTemplate(Item.WorkflowCode, Item.WorkflowVersion);
                OThinker.H3.DataModel.BizObjectSchema schema           = GetSchema(workflowTemplate.BizObjectSchemaCode);
                approvalDataItem = workflow.GetDefaultCommentDataItem(schema, Item.ActivityCode);
            }
            if (approvalDataItem != null)
            {
                // 创建审批
                //TODO:此处待修改,Item.BizObjectId不存在,通过 OT_InstanceContext获取
                Instance.InstanceContext InstanceContext = this.Engine.InstanceManager.GetInstanceContext(Item.InstanceId);
                string BizObjectId = InstanceContext == null ? string.Empty : InstanceContext.BizObjectId;

                Data.Comment comment = new Data.Comment();
                comment.Activity    = Item.ActivityCode;
                comment.Approval    = Approval;
                comment.CreatedTime = System.DateTime.Now;
                comment.DataField   = approvalDataItem;
                comment.InstanceId  = Item.InstanceId;
                comment.OUName      = this.Engine.Organization.GetName(this.Engine.Organization.GetParent(Item.Participant));
                comment.Text        = Comment;
                comment.TokenId     = Item.TokenId;
                comment.UserID      = Item.Participant;
                comment.UserName    = Item.ParticipantName;
                //comment.BizObjectId = Item.BizObjectId;
                comment.BizObjectId         = BizObjectId;
                comment.BizObjectSchemaCode = Item.WorkflowCode;
                this.Engine.BizObjectManager.AddComment(comment);
            }
        }