Adding another New Row for the same ID

Question

I have a simple application for taking Customer orders and their Products. I am using Visual Studio 2008 Express Edition and MS Access 2007.

My application uses multiple forms. One of the forms is an Add form from where a New Customer along with his/her details like address, phone, city, state etc can be added. Another form is for the Product Details to be added.

I want to know how to add Multiple Rows for the same CustomerID record, as a Customer can order multiple products. I am using the following code for the Add button:

 Private Sub cmdAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdAdd.Click          MyBindingSource.EndEdit()         DialogResult = Windows.Forms.DialogResult.OK      End Sub

This adds a new Customer into the Database. I have another code for Auto Incrementing the CustomerID.

Now I need to know how to add 2 or more rows for this same CustomerID record.

How can I do this ?

Can anyone help please ?

Satyapriya Nayak · Answer

Hi Maneesh, Try this... 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 System.Data.OleDb; namespace Data_relation { public partial class Form1 : Form { string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"]; OleDbCommand com; OleDbDataAdapter oda; DataSet ds; DataRelation dr; string str; public Form1() { InitializeComponent(); } private void btndisplay_Click(object sender, EventArgs e) { OleDbConnection con = new OleDbConnection(ConnectionString); con.Open(); str = "select * from product"; com = new OleDbCommand(str, con); oda = new OleDbDataAdapter(com); ds = new DataSet(); oda.Fill(ds, "product"); str = "select * from customer"; com = new OleDbCommand(str, con); oda = new OleDbDataAdapter(com); oda.Fill(ds, "customer"); con.Close(); DataColumn dc1 = new DataColumn(); DataColumn dc2 = new DataColumn(); dc1 = ds.Tables["product"].Columns["prodid"]; dc2 = ds.Tables["customer"].Columns["prodid"]; dr = new DataRelation("Customers taking this product are", dc1, dc2); ds.Relations.Add(dr); dataGrid1.DataSource = ds; dataGrid1.DataMember = "product"; } } } Thanks

Adding another New Row for the same ID

Answers (1)