DAL/Class.cs

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using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using Maticsoft.DBUtility;//Please add references
namespace CAS.DAL
{
	/// <summary>
	/// 数据访问类:Class
	/// </summary>
	public partial class Class
	{
		public Class()
		{}
		#region  Method

		/// <summary>
		/// 得到最大ID
		/// </summary>
		public int GetMaxId()
		{
		return DbHelperSQL.GetMaxID("CID", "Class"); 
		}


		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(int CID)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from Class");
			strSql.Append(" where CID="+CID+" ");
			return DbHelperSQL.Exists(strSql.ToString());
		}

		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(CAS.Model.Class model)
		{
			StringBuilder strSql=new StringBuilder();
			StringBuilder strSql1=new StringBuilder();
			StringBuilder strSql2=new StringBuilder();
			if (model.CName != null)
			{
				strSql1.Append("CName,");
				strSql2.Append("'"+model.CName+"',");
			}
			if (model.Teacher != null)
			{
				strSql1.Append("Teacher,");
				strSql2.Append(""+model.Teacher+",");
			}
			if (model.StartTime != null)
			{
				strSql1.Append("StartTime,");
				strSql2.Append("'"+model.StartTime+"',");
			}
			if (model.EndTime != null)