branchda.cs

实现房产销售的房屋管理 客户管理 并且在客户管理中实现了对预定客户和已购房客户的查询和修改

using System;
using System.Data;
using System.Data.SqlClient;
using HouseBE;
namespace HouseDA
{
	/// <summary>
	/// BranchDA 部门的数据库访问层。
	/// </summary>
	public class BranchDA:CommonDA
	{
		private SqlConnection _con;
	    private SqlDataAdapter _adapter;
	   	private SqlCommand _cmd;
		private DataSet _ds;
        private ConDA _cons;
		private HouseBE.Branch _branch;

		public HouseBE.Branch branch
		{
			set
			{
			  this._branch=value;
			}
			get
			{
			  return this._branch;
			}
		}

		public BranchDA()
		{
			this._cons=new ConDA();
			this._con=this._cons._con;
		}
		#region CommonDA 成员

		public DataSet select()
		{
			try
			{
				this._adapter=new SqlDataAdapter("select * from VIEW_Branch",this._con);
				this._ds=new DataSet();
				this._adapter.Fill(this._ds,"Branch");
			}
			catch(Exception ex)
			{
			  Console.WriteLine(ex.Message);
			  throw ex;
			}
			return this._ds;
			// TODO:  添加 BranchDA.select 实现
		}

		public void insert()
		{
			// TODO:  添加 BranchDA.insert 实现
			this._cmd=this._con.CreateCommand();
			this._cmd.CommandText="insert into Branch values(@BranchName,@Remark)";
			this._cmd.Parameters.Add("@BranchName",this._branch.BranchName);
			this._cmd.Parameters.Add("@Remark",this._branch.Remark);
			try
			{
				this._con.Open();
				this._cmd.ExecuteNonQuery();	
			}
			catch(Exception ex)
			{
				Console.WriteLine(ex.Message);
				throw ex;
			}
			finally
			{
			 this._con.Close();
			}
		}

		public void update()
		{
			// TODO:  添加 BranchDA.update 实现
			this._cmd=this._con.CreateCommand();
			this._cmd.CommandText="update Branch set BranchName=@BranchName,Remark=@Remark where BranchID=@BranchID";
			this._cmd.Parameters.Add("@BranchName",this._branch.BranchName);
			this._cmd.Parameters.Add("@Remark",this._branch.Remark);
			this._cmd.Parameters.Add("@BranchID",this._branch.BranchID);

			try
			{
				this._con.Open();
				this._cmd.ExecuteNonQuery();
			}
			catch(Exception ex)
			{
				Console.WriteLine(ex.Message);
				throw ex;
			}
			finally
			{
			  this._con.Close();
			}
		}


        //未实现的方法  需要调用存储过程
		public void delete()
		{
			// TODO:  添加 BranchDA.delete 实现
			this._cmd=this._con.CreateCommand();
			this._cmd.CommandType=CommandType.StoredProcedure;
			this._cmd.CommandText="proc_Branch";
			this._cmd.Parameters.Add("@BranchID",this._branch.BranchID);

			try
			{
				this._con.Open();
				this._cmd.ExecuteNonQuery();
			}
			catch(Exception ex)
			{
				Console.WriteLine(ex.Message);
				throw ex;
			}
			finally
			{
			  this._con.Close();
			}
		}

		#endregion
		public DataSet Selects(HouseBE.Branch branch)
		{
            this._ds=new DataSet();
			try
			{
				this._adapter=new SqlDataAdapter("select * from VIEW_Branch where BranchName="+this._branch.BranchName+"",this._con);
				this._adapter.Fill(this._ds,"BranchName");
			}
			catch(Exception ex)
			{
			  throw ex;
			}
			return this._ds;
			
		}
	}
}