CommLei.SQLserverDAL/Sys_Groups.cs

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using System;
using System.Collections;
using System.Data;
using System.Text;
using System.Data.SqlClient;

using CommLei.DBUtility;
using CommLei.IDAL;

namespace CommLei.SQLServerDAL
{
    /// <summary>
    /// 分组管理数据访问类
    /// </summary>
    public class Sys_Groups : ISys_Groups
    {
        public Sys_Groups()
        { }
        #region  成员方法

        /// <summary>
        /// 判断分组是否存在
        /// </summary>
        /// <param name="GroupName">分组名称</param>
        /// <returns></returns>
        public bool Exists(string GroupName, int GroupType)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from Sys_Groups");
            strSql.Append(" where GroupName=@GroupName and GroupType=@GroupType");
            SqlParameter[] parameters = {
					new SqlParameter("@GroupName", SqlDbType.NVarChar,30),
                    new SqlParameter("@GroupType", SqlDbType.Int,4)};
            parameters[0].Value = GroupName;
            parameters[1].Value = GroupType;

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

        /// <summary>
        /// 增加一个分组
        /// </summary>
        /// <param name="model">分组实体类</param>
        /// <returns></returns>
        public bool CreateGroup(CommLei.Model.Sys_Groups model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into Sys_Groups(");
            strSql.Append("GroupName,GroupOrder,GroupDescription,GroupType)");
            strSql.Append(" values (");
            strSql.Append("@GroupName,@GroupOrder,@GroupDescription,@GroupType)");
            SqlParameter[] parameters = {
					new SqlParameter("@GroupName", SqlDbType.NVarChar,30),
					new SqlParameter("@GroupOrder", SqlDbType.Int,4),
					new SqlParameter("@GroupDescription", SqlDbType.NVarChar),
                    new SqlParameter("@GroupType", SqlDbType.Int,4)};
            parameters[0].Value = model.GroupName;
            parameters[1].Value = model.GroupOrder;
            parameters[2].Value = model.GroupDescription;
            parameters[3].Value = model.GroupType;