SQLServerDAL/WebMessage.cs

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// WebMessage.cs:站内信内容类.
// CopyRight (c) 2010-2011 HangJing Teconology. All Rights Reserved.
// 
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using WMPT.DBUtility;
using WMPT.Model;

using System.Data;
using System.Data.SqlClient;

namespace WMPT.SQLServerDAL
{
   public class WebMessage
    {
        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(WebMessageInfo model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into WebMessage(");
            strSql.Append("Title,Message,AddDate)");
            strSql.Append(" values (");
            strSql.Append("@Title,@Message,@AddDate)");
            SqlParameter [] parameters = 
            {
				new SqlParameter("@Title", SqlDbType.VarChar,50),
				new SqlParameter("@Message", SqlDbType.VarChar,50),
				new SqlParameter("@AddDate", SqlDbType.DateTime)
            };
            parameters[0].Value = model.Title;
            parameters[1].Value = model.Message;
            parameters[2].Value = model.AddDate;

            return Convert.ToInt32(SQLHelper.ExecuteScalar(CommandType.Text, strSql.ToString(), parameters));
        }

        /// <summary>
        /// 更新一条数据
        /// </summary>
        public int Update(WebMessageInfo model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("update WebMessage set ");
            strSql.Append("Title=@Title,");
            strSql.Append("Message=@Message,");
            strSql.Append("AddDate=@AddDate");
            strSql.Append(" where DataId=@DataId ");
            SqlParameter[] parameters = 
            {
				new SqlParameter("@DataId", SqlDbType.Int,4),
				new SqlParameter("@Title", SqlDbType.VarChar,50),
				new SqlParameter("@Message", SqlDbType.VarChar,4096),
				new SqlParameter("@AddDate", SqlDbType.DateTime)
            };
            parameters[0].Value = model.DataId;