how to lode data from Two Tables in a Single Data Grid View

You can try this data export component to load and save your tables. Also, you can save data to word, excel,html, and PDF etc.

Hi Arun,


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 Datagridview_bind
{
    public partial class Form1 : Form
    {
        string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];
        OleDbCommand com;
        OleDbDataAdapter oda;
        DataSet ds;
        string str;
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            OleDbConnection con = new OleDbConnection(ConnectionString);
            con.Open();
            str = "select customer.custid,customer.custname,customer.custaddress,product.prodname,product.prodprice from customer, product where  customer.prodid = product.prodid";
            com = new OleDbCommand(str, con);
            oda = new OleDbDataAdapter(com);
            ds = new DataSet();
            oda.Fill(ds, "customer");
            dataGridView1.DataMember = "customer";
            dataGridView1.DataSource = ds;
            con.Close();
        }
    }
}



Thanks
If this post helps you mark it as answer

Hi Arun,


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
If this post helps you mark it as answer