DAL/studentcallinfo.cs

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using Maticsoft.DBUtility;//Please add references
using System;
using System.Data;
using System.Data.SQLite;
using System.Text;

namespace Maticsoft.DAL
{
    /// <summary>
    /// 数据访问类:studentcallinfo
    /// </summary>
    public partial class studentcallinfo
    {
        public studentcallinfo()
        { }

        #region BasicMethod

        /// <summary>
        /// 得到最大ID
        /// </summary>
        public int GetMaxId()
        {
            return DbHelperSQLite.GetMaxID("id", "studentcallinfo");
        }

        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from studentcallinfo");
            strSql.Append(" where id=@id");
            SQLiteParameter[] parameters = {
                    new SQLiteParameter("@id", DbType.Int32,4)
            };
            parameters[0].Value = id;

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

        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(Maticsoft.Model.studentcallinfo model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into studentcallinfo(");
            strSql.Append("callno,time,remark)");
            strSql.Append(" values (");
            strSql.Append("@callno,@time,@remark)");
            strSql.Append(";select LAST_INSERT_ROWID()");
            SQLiteParameter[] parameters = {
                    new SQLiteParameter("@callno", DbType.String),
                    new SQLiteParameter("@time", DbType.DateTime),
                    new SQLiteParameter("@remark", DbType.String)};
            parameters[0].Value = model.callno;
            parameters[1].Value = model.time;
            parameters[2].Value = model.remark;