I have to make a guessing game program using CLR Windows Form APP in Visual Studio 2008. The program has to catch excceptions. Im trying to catch an exception if I were to leave the input box called guessBox2 in the program blank and hit the submit button. IM STUCK. here is my code
#pragma once
#include <time.h>
#include<stdlib.h>
namespace Blah
{
using namespace System;
using namespace System::ComponentModel;
using namespace System::Collections;
using namespace System::Windows::Forms;
using namespace System::Data;
using namespace System::Drawing;
/// <summary>
/// Summary for Form1
///
/// WARNING: If you change the name of this class, you will need to change the
/// 'Resource File Name' property for the managed resource compiler tool
/// associated with all .resx files this class depends on. Otherwise,
/// the designers will not be able to interact properly with localized
/// resources associated with this form.
/// </summary>
public ref class Form1 : public System::Windows::Forms::Form
{
public:
int x;
void get_number()
{
srand(time(0));//initalizes random numbers
x = rand() % 1001;//random number 1-1000
}
Form1(void)
{
InitializeComponent();
get_number();
//
//TODO: Add the constructor code here
//
}
protected:
/// <summary>
/// Clean up any resources being used.
/// </summary>
~Form1()
{
if (components)
{
delete components;
}
}
private: System::Windows::Forms::Button^ guessButton;
protected:
private: System::Windows::Forms::TextBox^ guessBox1;
private: System::Windows::Forms::Label^ label1;
private: System::Windows::Forms::Label^ label2;
private: System::Windows::Forms::TextBox^ guessBox2;
private: System::Windows::Forms::Button^ Reset;
private:
/// <summary>
/// Required designer variable.
/// </summary>
System::ComponentModel::Container ^components;
#pragma region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
void InitializeComponent(void)
{
System::ComponentModel::ComponentResourceManager^ resources = (gcnew System::ComponentModel::ComponentResourceManager(Form1::typeid));
this->guessButton = (gcnew System::Windows::Forms::Button());
this->guessBox1 = (gcnew System::Windows::Forms::TextBox());
this->label1 = (gcnew System::Windows::Forms::Label());
this->label2 = (gcnew System::Windows::Forms::Label());
this->guessBox2 = (gcnew System::Windows::Forms::TextBox());
this->Reset = (gcnew System::Windows::Forms::Button());
this->SuspendLayout();
//
// guessButton
//
this->guessButton->Location = System::Drawing::Point(82, 174);
this->guessButton->Name = L"guessButton";
this->guessButton->Size = System::Drawing::Size(142, 78);
this->guessButton->TabIndex = 0;
this->guessButton->Text = L"Guess";
this->guessButton->UseVisualStyleBackColor = true;
this->guessButton->Click += gcnew System::EventHandler(this, &Form1::guessButton_Click);
//
// guessBox1
//
this->guessBox1->Location = System::Drawing::Point(107, 127);
this->guessBox1->Name = L"guessBox1";
this->guessBox1->Size = System::Drawing::Size(105, 20);
this->guessBox1->TabIndex = 1;
this->guessBox1->Text = L"Enter Number Below";
//
// label1
//
this->label1->AutoSize = true;
this->label1->Location = System::Drawing::Point(12, 62);
this->label1->Name = L"label1";
this->label1->Size = System::Drawing::Size(323, 13);
this->label1->TabIndex = 2;
this->label1->Text = L"I have a number between 1 and 1000- can you guess my number\? ";
//
// label2
//
this->label2->AutoSize = true;
this->label2->Location = System::Drawing::Point(193, 99);
this->label2->Name = L"label2";
this->label2->Size = System::Drawing::Size(142, 13);
this->label2->TabIndex = 3;
this->label2->Text = L"Please enter your first guess ";
//
// guessBox2
//
this->guessBox2->Location = System::Drawing::Point(107, 147);
this->guessBox2->Name = L"guessBox2";
this->guessBox2->Size = System::Drawing::Size(105, 20);
this->guessBox2->TabIndex = 4;
//
// Reset
//
this->Reset->Location = System::Drawing::Point(1, 174);
this->Reset->Name = L"Reset";
this->Reset->Size = System::Drawing::Size(75, 78);
this->Reset->TabIndex = 5;
this->Reset->Text = L"Play Again";
this->Reset->UseVisualStyleBackColor = true;
this->Reset->Click += gcnew System::EventHandler(this, &Form1::Reset_Click);
//
// Form1
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->BackgroundImage = (cli::safe_cast<System::Drawing::Image^ >(resources->GetObject(L"$this.BackgroundImage")));
this->BackgroundImageLayout = System::Windows::Forms::ImageLayout::Center;
this->ClientSize = System::Drawing::Size(549, 325);
this->Controls->Add(this->guessBox1);
this->Controls->Add(this->Reset);
this->Controls->Add(this->guessBox2);
this->Controls->Add(this->label2);
this->Controls->Add(this->label1);
this->Controls->Add(this->guessButton);
this->Cursor = System::Windows::Forms::Cursors::Default;
this->FormBorderStyle = System::Windows::Forms::FormBorderStyle::Fixed3D;
this->Name = L"Form1";
this->Text = L"Guess from 1-1000";
this->ResumeLayout(false);
this->PerformLayout();
}
#pragma endregion
private: System::Void guessButton_Click(System::Object^ sender, System::EventArgs^ e)
{
int y=Convert::ToInt32(guessBox2->Text);
if(y<x && !(y<x-2))
label1->Text="Warmer";
if (y>x && !(y>x+2))
label1->Text="Colder";
if(y<x)
{
this->label2->Text="Cold, Less";
guessBox2->BackColor=System::Drawing::Color::Blue;
}
if(y>x)
{
label2->Text="Greater Than number";
guessBox2->BackColor=System::Drawing::Color::Red;
}
if(y==x)
{
this->guessBox1->Text=
Convert::ToString(x);
guessBox1->BackColor=System::Drawing::Color::White;
label2->Text="CORRECT!!!";
guessBox2->BackColor=System::Drawing::Color::Green;
guessBox2->ReadOnly=true;
}
guessBox2->BackColor=System::Drawing::Color::Azure;
}
}
private: System::Void Reset_Click(System::Object^ sender, System::EventArgs^ e)
{
this->get_number();
guessBox2->ReadOnly=false;
guessBox2->BackColor=System::Drawing::Color::White;
}
};
}