private void button4_Click(object sender, EventArgs e)
{
DDBDataContext DB = new DDBDataContext();
string nid = textboxsearchNID.Text;
var sres = from x in DB.LoginSts
where x.NID == nid
select x;
dataGridView1.DataSource = sres;
}
private void button1_Click(object sender, EventArgs e)
{
DDBDataContext DB = new DDBDataContext();
LoginSt obp = new LoginSt();
obp.username = textBoxusername.Text;
obp.password = textBoxpassword.Text;
obp.NID = textboxNID.Text;
DB.LoginSts.InsertOnSubmit(obp);
try
{
DB.SubmitChanges();
MessageBox.Show("Inserted.");
}
catch (Exception)
{
MessageBox.Show("Error");
}
}