/// <summary> /// 获取指定查询条件的查询表达式 /// </summary> /// <typeparam name="T">表达式实体类型</typeparam> /// <param name="rule">查询条件,如果为null,则直接返回 true 表达式</param> /// <returns>查询表达式</returns> public virtual Expression <Func <T, bool> > GetExpression <T>(FilterRule rule) { return(FilterHelper.GetExpression <T>(rule)); }
/// <summary> /// 获取指定查询条件组的查询表达式 /// </summary> /// <typeparam name="T">表达式实体类型</typeparam> /// <param name="group">查询条件组,如果为null,则直接返回 true 表达式</param> /// <returns>查询表达式</returns> public virtual Expression <Func <T, bool> > GetExpression <T>(FilterGroup group) { return(FilterHelper.GetExpression <T>(group)); }
/// <summary> /// 将条件组转换为查询表达式 /// </summary> public static Expression <Func <TEntity, bool> > ToExpression <TEntity>(this FilterGroup group) { return(FilterHelper.GetExpression <TEntity>(group)); }
/// <summary> /// 将条件转换为查询表达式 /// </summary> public static Expression <Func <TEntity, bool> > ToExpression <TEntity>(this FilterRule rule) { return(FilterHelper.GetExpression <TEntity>(rule)); }
/// <summary> /// 获取指定字段和条件组表达式 /// </summary> /// <typeparam name="T">表达式实体类型</typeparam> /// <param name="group">查询条件组,如果为null,则直接返回 true 表达式</param> /// <param name="filterfields">查询过滤字段集合</param> /// <returns>查询表达式</returns> public Expression <Func <T, bool> > GetExpression <T>(FilterGroup group, IDictionary <string, string> filterfields) { return(FilterHelper.GetExpression <T>(group, filterfields)); }