private void button1_Click(object sender, EventArgs e)
{
DbEntitiyEntities db = new DbEntitiyEntities();
var sorgu = from x in db.Tbl_Admin where x.KULLANICI == textBox1.Text && x.SİFRE == textBox2.Text select x;
if (sorgu.Any())
{
FrmAnaForm fr = new FrmAnaForm();
fr.Show();
this.Hide();
}
else
{
MessageBox.Show("Hatalı Giriş");
}
}