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WCF Architecture

Posted on 2011-03-20
2
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Last Modified: 2012-05-11
Experts
please see the attached images and the code also.
please see the images are 1,2,3,4,5,6,7,8,9 serial wise.
I do not know how to explain the entire thing so I have explained them in images.
thanking you
anindya
1 1 2
//code behind of the Quotation.cs form(Winform Form)
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Presentation.Common;
using BLL.Modules.Account;
using BLL.Account;

namespace Presentation.Account.Quotation
{
    public partial class QuotationCreation : Skin
    {
        BLL.Modules.Account.Quotation q = new BLL.Modules.Account.Quotation();
        AccountBO ab = new AccountBO();
        public QuotationCreation()
        {
            InitializeComponent();
            this.Load += new EventHandler(QuotationCreation_Load);
            this.button_OK.Click += new EventHandler(button_OK_Click);
        }
        public int _saved = 0;
        public int Saved
        {
            get
            {
                return _saved;
            }
            set
            {
                _saved = value;
            }
        }

        void button_OK_Click(object sender, EventArgs e)
        {
            SaveQuotation();
            if (Saved == 1)
            {
                this.Close();
            }
            else
            {

            }
        }

        private void SaveQuotation()
        {
            q.Description = textBox_Description.Text.Trim();
            q.ChargeDuration = textBox_ChargeDuration.Text.Trim();
            q.ShipDate = dateTimePicker_ShipDate.Value;
            q.ReturnDate = dateTimePicker_ReturnDate.Value;
            int? CustomerInfoID = null;
            q.CustomerInfoID =Convert.ToInt32( CustomerInfoID);

            if ((textBox_IDCustomerInfo.Text.Trim() != null) && (textBox_IDCustomerInfo.Text.Trim() != ""))
            {
                q.CustomerInfoID = Convert.ToInt32(textBox_IDCustomerInfo.Text.Trim());
            }
                        
            q.CustomerInfoCompany = textBox_Company.Text.Trim();
            q.CustomerInfoContact = textBox_Contact.Text.Trim();
            q.ShipVia = comboBox_ShipVia.SelectedIndex.ToString();
            q.ReturnVia = comboBox_ReturnVia.SelectedIndex.ToString();
            q.UserName = textBox_UserName.Text.Trim();
            if (checkBox_SalesOrder.Checked)
            {
                q.SaleOrder = "Y";
            }
            else
            {
                q.SaleOrder = "N";
            }
            if (checkBox_EventPricing.Checked)
            {
                q.EventPricing = "Y";
            }
            else
            {
                q.EventPricing = "N";
            }
            int? BillingCompanyInfoID = null;
            q.BillingCoInfoID =Convert.ToInt32(  BillingCompanyInfoID);
            if (textBox_IDBillingCoInfo.Text.Trim() != "")
            {
                q.BillingCoInfoID =Convert.ToInt32( textBox_IDBillingCoInfo.Text.Trim());
            }
            q.BillingInfoCompany = textBox_CompanyBillingCoInfo.Text.Trim();
            q.BillingInfoContact = textBox_ContactBillingCoInfo.Text.Trim();
            string msg = ab.Save("Table_Quotation", q);
            if (msg.ToString() == "Saved")
            {
                MyMessageBox.ShowBox(msg.ToString());
                _saved = 1;
            }
            else
            {
                MyMessageBox.ShowBox(msg.ToString());
                _saved = 0;
            }
            
        }

        void QuotationCreation_Load(object sender, EventArgs e)
        {
            SetSkin("Theme1");
            this.Text = "Order Information";
        }
                
    }
}




//here is the Quotation.cs class of the BLL >Module> Account

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace BLL.Modules.Account
{
    public class Quotation
    {
        public Int32 QuotationID
        {
            get;
            set;
        }
        public string Description
        {
            get;
            set;
        }
        public string ChargeDuration
        {
            get;
            set;
        }
        public DateTime ShipDate
        {
            get;
            set;
        }
        public DateTime ReturnDate
        {
            get;
            set;
        }
        public Int32 CustomerInfoID
        {
            get;
            set;
        }
        public string CustomerInfoCompany
        {
            get;
            set;
        }
        public string CustomerInfoContact
        {
            get;
            set;
        }
        public string ShipVia
        {
            get;
            set;
        }
        public string ReturnVia
        {
            get;
            set;
        }
        public string UserName
        {
            get;
            set;
        }
        public string SaleOrder
        {
            get;
            set;
        }
        public string EventPricing
        {
            get;
            set;
        }
        public Int32 BillingCoInfoID
        {
            get;
            set;
        }
        public string BillingInfoCompany
        {
            get;
            set;
        }
        public string BillingInfoContact
        {
            get;
            set;
        }
            
    }
}

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Comment
Question by:ANINDYA
2 Comments
 
LVL 11

Accepted Solution

by:
lenordiste earned 500 total points
Comment Utility
if I understood your problem correctly you are facing design issues due to the DTO design pattern. Here is some litterature on it:
http://www.designpatternsfor.net/default.aspx?pid=99

You should regard your DataContract as a DTO. Since you wish to keep a 3 tier architecture and make minimum changes I would advise you to put all your WCF logic inside the BLL.
The problem you are facing is that at one point you have a WCF function (namely ListCustomers) which needs to return a datacontract while your DAL only works with "actual business" objects. There are two ways to work around this issue:
- implement methods in your DLL to convert DTO to business classes and vice versa.
- make the transformation as needed directly in your WCF service methods: call your DAL methods directly from your WCF service methods and transform the data on the fly into a data contract (usually easily done with linq).

0
 

Author Closing Comment

by:ANINDYA
Comment Utility
My membership had expired so I failed to accept your answer as solution.sorry
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