private void btnDelete_Click(object sender, EventArgs e)
{
if (dgv.SelectedRows.Count > 0)
{
DialogResult dr = MessageBox.Show("Esta seguro de que desea eliminar esta encuesta?", "Atencion", MessageBoxButtons.YesNo);
if (dr == DialogResult.Yes)
{
dr = MessageBox.Show("Si elimina esta encuesta las respuestas de la misma seran borradas, Desea continuar?", "Atencion", MessageBoxButtons.YesNo);
if (dr == DialogResult.Yes)
{
QuizServices quizServices = new QuizServices();
quizServices.Delete(Convert.ToInt32(dgv.CurrentRow.Cells[0].Value.ToString()));
dgv.DataSource = quizServices.getSpecific(query);
}
}
}
else
{
MessageBox.Show("Debe seleccionar una fila");
}
}
static void Main(string[] args)
{
string playersName = "";
int count = 0;
int hits = 0;
Question[] questions = new Question[11];
Answer firstQuestionA = new Answer("int", false);
Answer firstQuestionB = new Answer("var", false);
Answer firstQuestionC = new Answer("let", true);
Answer firstQuestionD = new Answer("string", false);
questions[0] = new Question("Which of the variable types is not a C# variable type?", new Answer[] {
firstQuestionA,
firstQuestionB,
firstQuestionC,
firstQuestionD
});
Answer secondQuestionA = new Answer("undefined", false);
Answer secondQuestionB = new Answer("0", true);
Answer secondQuestionC = new Answer("null", false);
Answer secondQuestionD = new Answer("cant declare variable without initialization", false);
questions[1] = new Question("If we declare an int variable in C# without initialization what default value will it get?", new Answer[] {
secondQuestionA,
secondQuestionB,
secondQuestionC,
secondQuestionD
});
Answer thirdQuestionA = new Answer("undefined", false);
Answer thirdQuestionB = new Answer("0", false);
Answer thirdQuestionC = new Answer("null", false);
Answer thirdQuestionD = new Answer("cant declare var without initialization", true);
questions[2] = new Question("If we declare an var variable in C# without initialization what value will it get?", new Answer[] {
thirdQuestionA,
thirdQuestionB,
thirdQuestionC,
thirdQuestionD
});
Answer fourthQuestionA = new Answer("var random = \"Hello World\"", false);
Answer fourthQuestionB = new Answer("int number = 3", false);
Answer fourthQuestionC = new Answer("int string = int.Parse(\"4\")", false);
Answer fourthQuestionD = new Answer("random = number", true);
questions[3] = new Question("Which declaration/initialization of the offered is not possible?", new Answer[] {
fourthQuestionA,
fourthQuestionB,
fourthQuestionC,
fourthQuestionD
});
Answer fifthQuestionA = new Answer("int[] arr = []", false);
Answer fifthQuestionB = new Answer("int[] arr = new int[]", false);
Answer fifthQuestionC = new Answer("int[] arr = new int[] {}", false);
Answer fifthQuestionD = new Answer("int[] arr = new int[2]", true);
questions[4] = new Question("How do we initialize a new empty int array", new Answer[] {
fifthQuestionA,
fifthQuestionB,
fifthQuestionC,
fifthQuestionD
});
Answer sixthQuestionA = new Answer("int[] arr = new int[] { 1, 2, 3, 4 }", false);
Answer sixthQuestionB = new Answer("char[] arr = { 'a', 'b', 'c', 'd' }", false);
Answer sixthQuestionC = new Answer("var[] arr = new var[] { 1, \"2\", 'c', [1, 2] }", true);
Answer sixthQuestionD = new Answer("int[][] arr = { new int[] { 1, 2 }, new int[] { 3, 4 } }", false);
questions[5] = new Question("Which of the array declarations is incorrect?", new Answer[] {
sixthQuestionA,
sixthQuestionB,
sixthQuestionC,
sixthQuestionD
});
Answer seventhQuestionA = new Answer("public string sayMyName(string name, string lastName)", false);
Answer seventhQuestionB = new Answer("private sayMyName(string name, string lastName)", false);
Answer seventhQuestionC = new Answer("public string SayMyName(name, lastName)", false);
Answer seventhQuestionD = new Answer("public string SayMyName(string name, string lastName)", true);
questions[6] = new Question("Which of the method signatures is correct?", new Answer[] {
seventhQuestionA,
seventhQuestionB,
seventhQuestionC,
seventhQuestionD
});
Answer eigthQuestionA = new Answer("No, this is not possible in C#", false);
Answer eigthQuestionB = new Answer("Yes, but the access modifier needs to be different", false);
Answer eigthQuestionC = new Answer("No, because the name is already used", false);
Answer eigthQuestionD = new Answer("Yes, but we must declare the new method with different set of parameters", true);
questions[7] = new Question("Can we have more than one method with the same name?", new Answer[] {
eigthQuestionA,
eigthQuestionB,
eigthQuestionC,
eigthQuestionD
});
Answer ninthQuestionA = new Answer("the constructor method", true);
Answer ninthQuestionB = new Answer("it doesn't use any method", false);
Answer ninthQuestionC = new Answer("the create new object method", false);
Answer ninthQuestionD = new Answer("the initialization method", false);
questions[8] = new Question("We use classes to instantiate objects in C#, which method does the class use to create our object?", new Answer[] {
ninthQuestionA,
ninthQuestionB,
ninthQuestionC,
ninthQuestionD
});
Answer tenthQuestionA = new Answer("it cannot be done", false);
Answer tenthQuestionB = new Answer("it will create our object but we cannot set any values to the properties, ever", false);
Answer tenthQuestionC = new Answer("the default empty constructor", true);
Answer tenthQuestionD = new Answer("it orders it from AliExpress", false);
questions[9] = new Question("If we don't have a constructor declared in our class, what does the class use to create the new object?", new Answer[] {
tenthQuestionA,
tenthQuestionB,
tenthQuestionC,
tenthQuestionD
});
Answer eleventhQuestionA = new Answer("constructor(name, lastName)", false);
Answer eleventhQuestionB = new Answer("new constructor(string name, string lastName)", false);
Answer eleventhQuestionC = new Answer("private ClassName(string name, string lastName)", false);
Answer eleventhQuestionD = new Answer("public ClassName(string name, string lastName)", true);
questions[10] = new Question("How do we declare a constructor method?", new Answer[] {
eleventhQuestionA,
eleventhQuestionB,
eleventhQuestionC,
eleventhQuestionD
});
Player[] players = new Player[] {
new Player("John", 5),
new Player("Mike", 9),
new Player("Bob", 7)
};
do
{
Console.WriteLine("Make your choice:");
Console.WriteLine();
Console.WriteLine("1) Run the quiz");
Console.WriteLine("2) Add a question/s");
Console.WriteLine("3) Check the score board");
Console.WriteLine("4) Exit the quiz");
Console.WriteLine();
Console.Write("Your choice: ");
string menuSelection = Console.ReadLine();
Console.Clear();
if (menuSelection == "1")
{
count = 0;
Console.Write("Please enter your name:");
playersName = Console.ReadLine();
Console.Clear();
do
{
QuizServices.ShowTheQuestion(questions, count);
string usersAnswer = Console.ReadLine();
if (QuizServices.CheckTheAnswer(usersAnswer, questions, count) == true)
{
hits++;
}
Console.Clear();
count++;
} while (count < questions.Length);
Array.Resize(ref players, players.Length + 1);
players[players.Length - 1] = new Player(playersName, hits);
Array.Sort(players, delegate(Player user1, Player user2)
{
return(user1.Score.CompareTo(user2.Score));
});
Console.WriteLine("The number of correct answers is: " + hits);
Console.WriteLine(QuizServices.ScoringSystem(hits));
Console.WriteLine();
Console.WriteLine();
Console.WriteLine(QuizServices.ShowScoreTable(players));
hits = 0;
}
else if (menuSelection == "2")
{
do
{
Console.WriteLine("1) Enter a question");
Console.WriteLine("2) Back to main menu");
Console.WriteLine();
Console.Write("Your choice: ");
string selection = Console.ReadLine();
Console.Clear();
if (selection == "1")
{
Console.WriteLine("Enter the content of the question:");
string questionsContent = Console.ReadLine();
Answer[] theAnswers = QuizServices.CreateQuestion();
Question usersQuestion = new Question(questionsContent, theAnswers);
Array.Resize(ref questions, questions.Length + 1);
questions[questions.Length - 1] = usersQuestion;
}
else
{
break;
}
} while (true);
}
else if (menuSelection == "3")
{
do
{
Console.WriteLine(QuizServices.ShowScoreTable(players));
Console.WriteLine();
Console.WriteLine("1) Back to main menu");
Console.WriteLine();
Console.Write("Your choice: ");
string userSelect = Console.ReadLine();
Console.Clear();
if (userSelect == "1")
{
break;
}
} while (true);
}
else
{
break;
}
} while (true);
Console.ReadLine();
}
