private void button5_Click(object sender, EventArgs e)
{
var RoomsTableAdapter = new Learning_databasesDataSetTableAdapters.RoomsTableAdapter();
var courseId = (int)RoomsTableAdapter.InsertRoom(RoomName.Text, int.Parse(NumberOfStudentstxt.Text));
MessageBox.Show(courseId.ToString());
}
private void btnDeleteRow_Click(object sender, EventArgs e)
{
var RoomTableAdapter = new Learning_databasesDataSetTableAdapters.RoomsTableAdapter();
var RoomId = RoomTableAdapter.DeleteRoom(int.Parse(DeleteRoomtxt.Text));
}