سلام
SqlConnection objConnection = newSqlConnection(@"Data Source=.;Initial Catalog=student;Integrated Security=True");
objConnection.Open();
SqlCommand objCommand = newSqlCommand();
objCommand.CommandText = "INSERT INTO student " + "(id, name, family) ";
objCommand.Parameters.AddWithValue("id", textBox1.Text);
objCommand.Parameters.AddWithValue("@name", textBox2.Text);
objCommand.Parameters.AddWithValue("@family", textBox3.Text);
objCommand.ExecuteNonQuery();
objConnection.Close();
مشکل این کانکشن کجاست؟