private void btnAdd_Click(object sender, EventArgs e)
{
DataLinqDataContext db = new DataLinqDataContext();
DemoLinQ demoLinQ = new DemoLinQ();
demoLinQ.id = Int32.Parse(txtId.Text);
demoLinQ.name = txtName.Text;
demoLinQ.sdt = txtPhone.Text;
db.DemoLinQs.InsertOnSubmit(demoLinQ);
db.SubmitChanges();
dataGridView1.DataSource = db.DemoLinQs.Select(p => p).ToList();
}
partial void UpdateDemoLinQ(DemoLinQ instance);
partial void DeleteDemoLinQ(DemoLinQ instance);
partial void InsertDemoLinQ(DemoLinQ instance);