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C# ONSqlSelect.AddOrderBy方法代码示例

本文整理汇总了C#中SIGEM.Business.SQL.ONSqlSelect.AddOrderBy方法的典型用法代码示例。如果您正苦于以下问题:C# ONSqlSelect.AddOrderBy方法的具体用法?C# ONSqlSelect.AddOrderBy怎么用?C# ONSqlSelect.AddOrderBy使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在SIGEM.Business.SQL.ONSqlSelect的用法示例。


在下文中一共展示了ONSqlSelect.AddOrderBy方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: AddOrderCriteria

        ///<summary> This method adds the order criteria to the SQL statement </summary>
        ///<param name = "onSql"> This parameter represents the SQL component </param>
        ///<param name = "comparer"> This parameter has all the information refering to the order criteria to add to SQL statement</param>
        /// <param name="startRowOid">This parameter has the OID necessary to start the search</param>
        /// <param name="blockSize">This parameter represents the number of instances to be returned</param>
        protected override void AddOrderCriteria(ONSqlSelect onSql, ONOrderCriteria comparer, ONOid startRowOid, int blockSize, ONPath initialPath)
        {
            //Initilizate StartRow
            AeronaveInstance lInstance = null;
            if (startRowOid != null)
            {
                lInstance = new AeronaveInstance(OnContext);
                lInstance.Oid = startRowOid as AeronaveOid;
            }

            //Default OrderCriteria
            if (comparer == null)
            {
                string lAlias = onSql.GetAlias("Aeronave", initialPath);
                if (lInstance != null)
                {
                    onSql.AddOrderBy(lAlias, CtesBD.FLD_AERONAVE_ID_AERONAVE, OrderByTypeEnumerator.Asc, lInstance.Oid.Id_AeronaveAttr);
                }
                else
                {
                    onSql.AddOrderBy(lAlias, CtesBD.FLD_AERONAVE_ID_AERONAVE, OrderByTypeEnumerator.Asc, null);
                }
                return;
            }

            //Add OrderCriteria
            bool lUseStartRow = (!comparer.InMemory);
            foreach (ONOrderCriteriaItem lOrderCriteriaItem in comparer.OrderCriteriaSqlItem)
            {
                ONPath lPath = new ONPath(lOrderCriteriaItem.OnPath);
                if((lInstance != null) && (lUseStartRow))
                {
                    ONSimpleType lAttrStartRow = null;

                    if (lPath.Path == "")
                        lAttrStartRow = lInstance[lOrderCriteriaItem.Attribute] as ONSimpleType;
                    else
                    {
                        ONCollection lCollection = (lInstance[lPath.Path] as ONCollection);
                        if((lCollection != null) && (lCollection.Count > 0))
                            lAttrStartRow = lCollection[0][lOrderCriteriaItem.Attribute] as ONSimpleType;
                    }
                    onSql.AddOrderBy(AeronaveData.AddPath(onSql, JoinType.LeftJoin, lOrderCriteriaItem.Facet, lPath, null, lOrderCriteriaItem.DomainArgument, false), lOrderCriteriaItem.Attribute, lOrderCriteriaItem.Type, lAttrStartRow);
                    lUseStartRow = (lAttrStartRow != null);
                }
                else
                    onSql.AddOrderBy(AeronaveData.AddPath(onSql, JoinType.LeftJoin, lOrderCriteriaItem.Facet, lPath, null, lOrderCriteriaItem.DomainArgument, false), lOrderCriteriaItem.Attribute, lOrderCriteriaItem.Type, null);
            }
            return;
        }
开发者ID:sgon1853,项目名称:UPM_MDD_Thesis,代码行数:55,代码来源:AeronaveData.cs


注:本文中的SIGEM.Business.SQL.ONSqlSelect.AddOrderBy方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。