sql conexxion

 String^ conecto = L"datasource=localhost;port=3306;username=root;password=jeferson";
				 MySqlConnection^ conDataBase = gcnew MySqlConnection(conecto);
				 MySqlCommand^ cmdDataBase = gcnew MySqlCommand("select * from proyecto_bd.admin WHERE usuario=@usuario AND contrasenia=@contrasenia;", conDataBase);
				 MySqlDataReader^ Lectura;
				 try{
					 String^ tipo;
				 conDataBase->Open();
				 cmdDataBase->Parameters->AddWithValue("@usuario", textBox1->Text);
				 cmdDataBase->Parameters->AddWithValue("@contrasenia", textBox2->Text);

				 Lectura = cmdDataBase->ExecuteReader();