LambdaToSql/Interface/IQueryable.cs

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using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Linq.Expressions;
using System.Text;

namespace LambdaToSql.Interface
{
    /// <summary>
    /// 查询接口
    /// </summary>
    /// <typeparam name="T"></typeparam>
    public interface IQueryable<T>
    {
        /// <summary>
        /// 数据库上下文对象
        /// </summary>
        LambdaToSql.EntityModel.DbContext Context { get; set; }

        #region Any

        /// <summary>
        /// 判断满足条件的数据是否存在
        /// </summary>
        /// <returns></returns>
        bool Any();

        /// <summary>
        /// 判断满足条件的数据是否存在
        /// </summary>
        /// <param name="expression"></param>
        /// <returns></returns>
        bool Any(Expression<Func<T, bool>> expression);

        #endregion

        #region Select

        /// <summary>
        /// Select字段
        /// </summary>
        /// <param name="expression"></param>
        /// <returns></returns>
        IQueryable<T> Select(Expression<Func<T, object>> expression);

        #endregion

        #region Where

        /// <summary>
        /// 条件查询
        /// </summary>
        /// <param name="expression"></param>
        /// <returns></returns>
        IQueryable<T> Where(Expression<Func<T, bool>> expression);

        #endregion

        #region Skip Take