Notes

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApplication3
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{
DataClasses1DataContext tumay = new DataClasses1DataContext();
dataGridView1.DataSource = from degisken in tumay.Tablobirs
join degisken2 in tumay.Tablo2s
on degisken.id equals degisken2.tablo1id
select new
{
degisken.ad,
degisken2.ceptelefonu,
degisken2.evtelefonu
};

}

private void textBox1_TextChanged(object sender, EventArgs e)
{
DataClasses1DataContext yaz = new DataClasses1DataContext();
dataGridView1.DataSource = from degisken in yaz.Tablobirs
join degisken2 in yaz.Tablo2s
on degisken.id equals degisken2.id
where degisken.ad == textBox1.Text

select new
{
degisken.ad,
degisken2.ceptelefonu,
degisken2.evtelefonu
};
}
}
}