DemoDAL/tb_admin.cs

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using System; 
using System.Text;
using System.Data.SqlClient;
using System.Collections.Generic; 
using System.Data;
using Maticsoft.DBUtility;
namespace Maticsoft.DAL  
{
	 	//tb_admin
		public partial class tb_admin
	{
   		     
		public bool Exists(int id)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from tb_admin");
			strSql.Append(" where ");
			                                       strSql.Append(" id = @id  ");
                            			SqlParameter[] parameters = {
					new SqlParameter("@id", SqlDbType.Int,4)
			};
			parameters[0].Value = id;

			return DbHelperSQL.Exists(strSql.ToString(),parameters);
		}
		
				
		
		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(Maticsoft.Model.tb_admin model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into tb_admin(");			
            strSql.Append("adminID,adminName,adminPwd");
			strSql.Append(") values (");
            strSql.Append("@adminID,@adminName,@adminPwd");            
            strSql.Append(") ");            
            strSql.Append(";select @@IDENTITY");		
			SqlParameter[] parameters = {
			            new SqlParameter("@adminID", SqlDbType.NVarChar,50) ,            
                        new SqlParameter("@adminName", SqlDbType.NVarChar,50) ,            
                        new SqlParameter("@adminPwd", SqlDbType.NVarChar,50)             
              
            };
			            
            parameters[0].Value = model.adminID;                        
            parameters[1].Value = model.adminName;                        
            parameters[2].Value = model.adminPwd;                        
			   
			object obj = DbHelperSQL.GetSingle(strSql.ToString(),parameters);			
			if (obj == null)
			{
				return 0;
			}
			else
			{
				                    
            	return Convert.ToInt32(obj);