В чем ошибка? (почему не работает форма?)

#pragma once
 
 
namespace My9 {
 
    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:
        Form1(void)
        {
            InitializeComponent();
            //
            //TODO: Add the constructor code here
            //
        }
 
    protected:
        /// <summary>
        /// Clean up any resources being used.
        /// </summary>
        ~Form1()
        {
            if (components)
            {
                delete components;
            }
        }
    private: System::Windows::Forms::RichTextBox^  richTextBox1;
    protected: 
    private: System::Windows::Forms::RichTextBox^  richTextBox2;
    private: System::Windows::Forms::Button^  button1;
    private: System::Windows::Forms::Button^  button2;
    private: System::Windows::Forms::Button^  button3;
    private: System::Windows::Forms::Button^  button4;
    private: System::Windows::Forms::Button^  button5;
    private: System::Windows::Forms::Button^  button6;
    private: System::Windows::Forms::Button^  button7;
    private: System::Windows::Forms::Button^  button8;
 
    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)
        {
            this->richTextBox1 = (gcnew System::Windows::Forms::RichTextBox());
            this->richTextBox2 = (gcnew System::Windows::Forms::RichTextBox());
            this->button1 = (gcnew System::Windows::Forms::Button());
            this->button2 = (gcnew System::Windows::Forms::Button());
            this->button3 = (gcnew System::Windows::Forms::Button());
            this->button4 = (gcnew System::Windows::Forms::Button());
            this->button5 = (gcnew System::Windows::Forms::Button());
            this->button6 = (gcnew System::Windows::Forms::Button());
            this->button7 = (gcnew System::Windows::Forms::Button());
            this->button8 = (gcnew System::Windows::Forms::Button());
            this->SuspendLayout();
            // 
            // richTextBox1
            // 
            this->richTextBox1->Location = System::Drawing::Point(32, 24);
            this->richTextBox1->Name = L"richTextBox1";
            this->richTextBox1->Size = System::Drawing::Size(164, 127);
            this->richTextBox1->TabIndex = 0;
            this->richTextBox1->Text = L"";
            // 
            // richTextBox2
            // 
            this->richTextBox2->Location = System::Drawing::Point(330, 24);
            this->richTextBox2->Name = L"richTextBox2";
            this->richTextBox2->Size = System::Drawing::Size(168, 126);
            this->richTextBox2->TabIndex = 1;
            this->richTextBox2->Text = L"";
            // 
            // button1
            // 
            this->button1->Location = System::Drawing::Point(12, 177);
            this->button1->Name = L"button1";
            this->button1->Size = System::Drawing::Size(70, 35);
            this->button1->TabIndex = 2;
            this->button1->Text = L"Сохранить";
            this->button1->UseVisualStyleBackColor = true;
            this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
            // 
            // button2
            // 
            this->button2->Location = System::Drawing::Point(88, 177);
            this->button2->Name = L"button2";
            this->button2->Size = System::Drawing::Size(70, 35);
            this->button2->TabIndex = 3;
            this->button2->Text = L"Очистить";
            this->button2->UseVisualStyleBackColor = true;
            this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);
            // 
            // button3
            // 
            this->button3->Location = System::Drawing::Point(164, 177);
            this->button3->Name = L"button3";
            this->button3->Size = System::Drawing::Size(68, 35);
            this->button3->TabIndex = 4;
            this->button3->Text = L"Открыть";
            this->button3->UseVisualStyleBackColor = true;
            this->button3->Click += gcnew System::EventHandler(this, &Form1::button3_Click);
            // 
            // button4
            // 
            this->button4->Location = System::Drawing::Point(453, 177);
            this->button4->Name = L"button4";
            this->button4->Size = System::Drawing::Size(68, 35);
            this->button4->TabIndex = 7;
            this->button4->Text = L"Открыть";
            this->button4->UseVisualStyleBackColor = true;
            this->button4->Click += gcnew System::EventHandler(this, &Form1::button4_Click);
            // 
            // button5
            // 
            this->button5->Location = System::Drawing::Point(377, 177);
            this->button5->Name = L"button5";
            this->button5->Size = System::Drawing::Size(70, 35);
            this->button5->TabIndex = 6;
            this->button5->Text = L"Очистить";
            this->button5->UseVisualStyleBackColor = true;
            this->button5->Click += gcnew System::EventHandler(this, &Form1::button5_Click);
            // 
            // button6
            // 
            this->button6->Location = System::Drawing::Point(301, 177);
            this->button6->Name = L"button6";
            this->button6->Size = System::Drawing::Size(70, 35);
            this->button6->TabIndex = 5;
            this->button6->Text = L"Сохранить";
            this->button6->UseVisualStyleBackColor = true;
            this->button6->Click += gcnew System::EventHandler(this, &Form1::button6_Click);
            // 
            // button7
            // 
            this->button7->Location = System::Drawing::Point(215, 40);
            this->button7->Name = L"button7";
            this->button7->Size = System::Drawing::Size(99, 40);
            this->button7->TabIndex = 8;
            this->button7->Text = L"Зашифровать";
            this->button7->UseVisualStyleBackColor = true;
            this->button7->Click += gcnew System::EventHandler(this, &Form1::button7_Click);
            // 
            // button8
            // 
            this->button8->Location = System::Drawing::Point(215, 99);
            this->button8->Name = L"button8";
            this->button8->Size = System::Drawing::Size(99, 37);
            this->button8->TabIndex = 9;
            this->button8->Text = L"Расшифровать";
            this->button8->UseVisualStyleBackColor = true;
            this->button8->Click += gcnew System::EventHandler(this, &Form1::button8_Click);
            // 
            // Form1
            // 
            this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
            this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
            this->ClientSize = System::Drawing::Size(542, 262);
            this->Controls->Add(this->button8);
            this->Controls->Add(this->button7);
            this->Controls->Add(this->button4);
            this->Controls->Add(this->button5);
            this->Controls->Add(this->button6);
            this->Controls->Add(this->button3);
            this->Controls->Add(this->button2);
            this->Controls->Add(this->button1);
            this->Controls->Add(this->richTextBox2);
            this->Controls->Add(this->richTextBox1);
            this->Name = L"Form1";
            this->Text = L"Form1";
            this->ResumeLayout(false);
 
        }
#pragma endregion
    private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
                  if (saveFileDialog1->ShowDialog() == System::Windows::Forms::DialogResult::OK)
                 {
                    richTextBox1->SaveFile(saveFileDialog1->FileName);
                 }
             }
private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
                 richTextBox1->Clear();
         }
private: System::Void button3_Click(System::Object^  sender, System::EventArgs^  e) {
              if (openFileDialog1->ShowDialog() == System::Windows::Forms::DialogResult::OK)
             {
                richTextBox1->LoadFile(openFileDialog1->FileName);
             }
         }
private: System::Void button6_Click(System::Object^  sender, System::EventArgs^  e) {
              if (saveFileDialog1->ShowDialog() == System::Windows::Forms::DialogResult::OK)
                 {
                    richTextBox2->SaveFile(saveFileDialog1->FileName);
                 }
         }
private: System::Void button5_Click(System::Object^  sender, System::EventArgs^  e) {
              richTextBox1->Clear();
         }
private: System::Void button4_Click(System::Object^  sender, System::EventArgs^  e) {
              if (openFileDialog1->ShowDialog() == System::Windows::Forms::DialogResult::OK)
             {
                richTextBox1->LoadFile(openFileDialog1->FileName);
             }
         }
private: System::Void button7_Click(System::Object^  sender, System::EventArgs^  e) {
             int main()
{
   size_t strLen, keyLen, i, k;
   std::string str, key, codeStr;
 
   strLen = str.size();
   keyLen = key.size();
   codeStr = str;
   for (i = 0, k = 0; i < strLen; i++, k++)
   {
      if (k == (keyLen))
         k = 0;
      if (str[i] >= 'a' && str[i] <= 'z')
         codeStr[i] = (str[i] + key[k] - 2*'a') % 26 + 'a';
   }
private: System::Void button8_Click(System::Object^  sender, System::EventArgs^  e) {
             int main()
{
   size_t strLen, keyLen, i, k;
   std::string str, key, codeStr;
 
   strLen = str.size();
   keyLen = key.size();
   codeStr = str;
 
   for (i = 0, k = 0; i < strLen; i++, k++)
   {
      if (k == (keyLen))
         k = 0;
      if (codeStr[i] >= 'a' && codeStr[i] <= 'z')
         str[i] = (codeStr[i] - key[k] + 26) % 26 + 'a';
   }
         }
}
         }
};