Dal/DMessage.cs

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using System;
using System.Text;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.Data;
using Model;
namespace Dal
{
    public partial class DMessage
    {
        #region  Method
        public bool HasRecord(int M_ID)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select * from Message");
            strSql.Append(" where ");
            strSql.Append(" M_ID = @M_ID  ");
            SqlParameter[] parameters = {
					new SqlParameter("@M_ID", SqlDbType.Int,4)};
            parameters[0].Value = M_ID;

            return OLEDBHelper.HasRecord(strSql.ToString(), parameters, CommandType.Text);
        }



        /// <summary>
        /// 增加一条数据
        /// </summary>
        public bool Add(MMessage model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into Message(");
            strSql.Append("M_ID,M_Name,M_Phone,M_Title,M_Content,M_Date,M_Order");
            strSql.Append(") values (");
            strSql.Append("@M_ID,@M_Name,@M_Phone,@M_Title,@M_Content,@M_Date,@M_Order");
            strSql.Append(") ");

            SqlParameter[] parameters = {
			            new SqlParameter("@M_ID", SqlDbType.Int,4) ,            
                        new SqlParameter("@M_Name", SqlDbType.VarChar,255) ,            
                        new SqlParameter("@M_Phone", SqlDbType.VarChar,255) ,            
                        new SqlParameter("@M_Title", SqlDbType.VarChar,255) ,            
                        new SqlParameter("@M_Content", SqlDbType.VarChar,0) ,            
                        new SqlParameter("@M_Date", SqlDbType.DateTime) ,            
                        new SqlParameter("@M_Order", SqlDbType.Int,4)             
              
            };

            parameters[0].Value = model.M_ID;
            parameters[1].Value = model.M_Name;
            parameters[2].Value = model.M_Phone;
            parameters[3].Value = model.M_Title;
            parameters[4].Value = model.M_Content;
            parameters[5].Value = model.M_Date;
            parameters[6].Value = model.M_Order;
            int rows = OLEDBHelper.ExeNonQuery(strSql.ToString(), parameters, CommandType.Text);
            if (rows > 0)
            {
                return true;