BLL/ComplaintBLL.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
using Common;
using System.Data;

namespace BLL
{
    public partial class ComplaintBLL
    {
        public ComplaintBLL()
        { }
        #region  Method
        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int ComplaintId)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from T_Complaint");
            strSql.Append(" where ComplaintId=@ComplaintId");
            SqlParameter[] parameters = {
					new SqlParameter("@ComplaintId", SqlDbType.Int,4)
			};
            parameters[0].Value = ComplaintId;

            return DbHelperSQL.Exists(strSql.ToString(), parameters);
        }


        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(Maticsoft.Model.T_Complaint model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into T_Complaint(");
            strSql.Append("UserId,Title,CompaintContent,Status,AddTime)");
            strSql.Append(" values (");
            strSql.Append("@UserId,@Title,@CompaintContent,@Status,@AddTime)");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = {
					new SqlParameter("@UserId", SqlDbType.Int,4),
					new SqlParameter("@Title", SqlDbType.VarChar,200),
					new SqlParameter("@CompaintContent", SqlDbType.VarChar,1000),
					new SqlParameter("@Status", SqlDbType.TinyInt,1),
					new SqlParameter("@AddTime", SqlDbType.DateTime)};
            parameters[0].Value = model.UserId;
            parameters[1].Value = model.Title;
            parameters[2].Value = model.CompaintContent;
            parameters[3].Value = model.Status;
            parameters[4].Value = model.AddTime;

            object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
            if (obj == null)
            {
                return 0;
            }