YU-DAQ/yuhong_plc/zzz.Services/Comm/Dtos/PageInputBase.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace zzz.Services
{
    /// <summary>
    /// 分页共同画面
    /// </summary>
    public class PageInputBase
    {
        /// <summary>
        /// 当前页码
        /// </summary>
        public virtual int PageIndex { get; set; } = 1;

        /// <summary>
        /// 页码容量
        /// </summary>
        public virtual int PageSize { get; set; } = 20;

        /// <summary>
        /// 排序字段
        /// </summary>
        public virtual string SortField { get; set; } = "Id";

        /// <summary>
        /// 排序方法,默认升序,前端传入的值是 descending ascending  elementUI默认固定值
        /// </summary>
        public virtual string SortOrder { get; set; } = "descending";

        /// <summary>
        /// 拼接好的sql 排序
        /// </summary>
        public string SortSql
        {
            get
            {
                if (string.IsNullOrWhiteSpace(SortField) || string.IsNullOrWhiteSpace(SortOrder))
                {
                    return string.Empty;
                }
                else
                {
                    switch (SortOrder)
                    {
                        case "ascending":
                            return SortField;
                        case "descending":
                            return SortField + " desc";
                        default:
                            return string.Empty;
                    }
                }
            }
        }
    }
}