DAL/users.cs

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

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

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(int uid)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from users");
			strSql.Append(" where uid=@uid");
			SqlParameter[] parameters = {
					new SqlParameter("@uid", SqlDbType.Int,4)
};
			parameters[0].Value = uid;

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


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(Maticsoft.Model.users model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into users(");
			strSql.Append("uname,pwd,name1,tel,address,roles,xyid)");
			strSql.Append(" values (");
            strSql.Append("@uname,@pwd,@name1,@tel,@address,@roles,@xyid)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@uname", SqlDbType.VarChar,50),
					new SqlParameter("@pwd", SqlDbType.VarChar,50),
					new SqlParameter("@name1", SqlDbType.VarChar,50),
					new SqlParameter("@tel", SqlDbType.VarChar,50),
					new SqlParameter("@address", SqlDbType.VarChar,150),
					new SqlParameter("@roles", SqlDbType.NVarChar,50),
					new SqlParameter("@xyid", SqlDbType.Int,5)};