Реализация телефонной книги

#pragma once
 
 
namespace Vicprak3 {
 
    using namespace System;
    using namespace System::ComponentModel;
    using namespace System::Collections;
    using namespace System::Windows::Forms;
    using namespace System::Data;
    using namespace System::Drawing;
    int ch=0;
 
//---------------------------------------------------------------------------
struct DeqElem 
{
    int name;
    double number;
    DeqElem *prev;
    DeqElem *next;
} *head = NULL, *tail = NULL, *current = NULL;
//---------------------------------------------------------------------------
 
 
    /// <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::Button^  button1;
    private: System::Windows::Forms::Button^  button2;
    private: System::Windows::Forms::TextBox^  textBox1;
    private: System::Windows::Forms::TextBox^  textBox2;
    private: System::Windows::Forms::ListBox^  listBox1;
    private: System::Windows::Forms::Button^  button3;
    private: System::Windows::Forms::Button^  button4;
    private: System::Windows::Forms::TextBox^  textBox3;
    private: System::Windows::Forms::TextBox^  textBox4;
    private: System::Windows::Forms::Button^  button5;
    private: System::Windows::Forms::Button^  button6;
    private: System::Windows::Forms::TextBox^  textBox5;
    private: System::Windows::Forms::Label^  label1;
    private: System::Windows::Forms::Label^  label2;
    private: System::Windows::Forms::Label^  label3;
    private: System::Windows::Forms::Label^  label4;
    private: System::Windows::Forms::Label^  label5;
 
 
 
    protected: 
 
    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->button1 = (gcnew System::Windows::Forms::Button());
            this->button2 = (gcnew System::Windows::Forms::Button());
            this->textBox1 = (gcnew System::Windows::Forms::TextBox());
            this->textBox2 = (gcnew System::Windows::Forms::TextBox());
            this->listBox1 = (gcnew System::Windows::Forms::ListBox());
            this->button3 = (gcnew System::Windows::Forms::Button());
            this->button4 = (gcnew System::Windows::Forms::Button());
            this->textBox3 = (gcnew System::Windows::Forms::TextBox());
            this->textBox4 = (gcnew System::Windows::Forms::TextBox());
            this->button5 = (gcnew System::Windows::Forms::Button());
            this->button6 = (gcnew System::Windows::Forms::Button());
            this->textBox5 = (gcnew System::Windows::Forms::TextBox());
            this->label1 = (gcnew System::Windows::Forms::Label());
            this->label2 = (gcnew System::Windows::Forms::Label());
            this->label3 = (gcnew System::Windows::Forms::Label());
            this->label4 = (gcnew System::Windows::Forms::Label());
            this->label5 = (gcnew System::Windows::Forms::Label());
            this->SuspendLayout();
            // 
            // button1
            // 
            this->button1->Location = System::Drawing::Point(713, 299);
            this->button1->Name = L"button1";
            this->button1->Size = System::Drawing::Size(75, 23);
            this->button1->TabIndex = 0;
            this->button1->Text = L"Exit";
            this->button1->UseVisualStyleBackColor = true;
            this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
            // 
            // button2
            // 
            this->button2->Location = System::Drawing::Point(263, 9);
            this->button2->Name = L"button2";
            this->button2->Size = System::Drawing::Size(75, 68);
            this->button2->TabIndex = 1;
            this->button2->Text = L"Add";
            this->button2->UseVisualStyleBackColor = true;
            this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);
            // 
            // textBox1
            // 
            this->textBox1->Location = System::Drawing::Point(89, 9);
            this->textBox1->Multiline = true;
            this->textBox1->Name = L"textBox1";
            this->textBox1->Size = System::Drawing::Size(168, 26);
            this->textBox1->TabIndex = 2;
            // 
            // textBox2
            // 
            this->textBox2->Location = System::Drawing::Point(89, 49);
            this->textBox2->Multiline = true;
            this->textBox2->Name = L"textBox2";
            this->textBox2->Size = System::Drawing::Size(168, 28);
            this->textBox2->TabIndex = 3;
            // 
            // listBox1
            // 
            this->listBox1->FormattingEnabled = true;
            this->listBox1->Location = System::Drawing::Point(377, 54);
            this->listBox1->Name = L"listBox1";
            this->listBox1->Size = System::Drawing::Size(272, 251);
            this->listBox1->TabIndex = 4;
            // 
            // button3
            // 
            this->button3->Location = System::Drawing::Point(263, 106);
            this->button3->Name = L"button3";
            this->button3->Size = System::Drawing::Size(75, 23);
            this->button3->TabIndex = 5;
            this->button3->Text = L"Delete";
            this->button3->UseVisualStyleBackColor = true;
            this->button3->Click += gcnew System::EventHandler(this, &Form1::button3_Click);
            // 
            // button4
            // 
            this->button4->Location = System::Drawing::Point(89, 266);
            this->button4->Name = L"button4";
            this->button4->Size = System::Drawing::Size(75, 23);
            this->button4->TabIndex = 6;
            this->button4->Text = L"Find";
            this->button4->UseVisualStyleBackColor = true;
            this->button4->Click += gcnew System::EventHandler(this, &Form1::button4_Click);
            // 
            // textBox3
            // 
            this->textBox3->Location = System::Drawing::Point(215, 202);
            this->textBox3->Name = L"textBox3";
            this->textBox3->Size = System::Drawing::Size(123, 20);
            this->textBox3->TabIndex = 7;
            // 
            // textBox4
            // 
            this->textBox4->Location = System::Drawing::Point(215, 228);
            this->textBox4->Multiline = true;
            this->textBox4->Name = L"textBox4";
            this->textBox4->Size = System::Drawing::Size(123, 20);
            this->textBox4->TabIndex = 8;
            // 
            // button5
            // 
            this->button5->Location = System::Drawing::Point(263, 145);
            this->button5->Name = L"button5";
            this->button5->Size = System::Drawing::Size(75, 23);
            this->button5->TabIndex = 9;
            this->button5->Text = L"Sort";
            this->button5->UseVisualStyleBackColor = true;
            this->button5->Click += gcnew System::EventHandler(this, &Form1::button5_Click);
            // 
            // button6
            // 
            this->button6->Location = System::Drawing::Point(671, 15);
            this->button6->Name = L"button6";
            this->button6->Size = System::Drawing::Size(117, 23);
            this->button6->TabIndex = 10;
            this->button6->Text = L"Selected Element";
            this->button6->UseVisualStyleBackColor = true;
            this->button6->Click += gcnew System::EventHandler(this, &Form1::button6_Click);
            // 
            // textBox5
            // 
            this->textBox5->Location = System::Drawing::Point(671, 61);
            this->textBox5->Multiline = true;
            this->textBox5->Name = L"textBox5";
            this->textBox5->Size = System::Drawing::Size(117, 52);
            this->textBox5->TabIndex = 11;
            // 
            // label1
            // 
            this->label1->AutoSize = true;
            this->label1->Location = System::Drawing::Point(9, 9);
            this->label1->Name = L"label1";
            this->label1->Size = System::Drawing::Size(71, 13);
            this->label1->TabIndex = 12;
            this->label1->Text = L"Enter \"name\"";
            // 
            // label2
            // 
            this->label2->AutoSize = true;
            this->label2->Location = System::Drawing::Point(9, 49);
            this->label2->Name = L"label2";
            this->label2->Size = System::Drawing::Size(80, 13);
            this->label2->TabIndex = 12;
            this->label2->Text = L"Enter \"number\"";
            // 
            // label3
            // 
            this->label3->AutoSize = true;
            this->label3->Location = System::Drawing::Point(2, 205);
            this->label3->Name = L"label3";
            this->label3->Size = System::Drawing::Size(211, 13);
            this->label3->TabIndex = 12;
            this->label3->Text = L"Enter number elements which nesesery find";
            // 
            // label4
            // 
            this->label4->AutoSize = true;
            this->label4->Location = System::Drawing::Point(2, 235);
            this->label4->Name = L"label4";
            this->label4->Size = System::Drawing::Size(37, 13);
            this->label4->TabIndex = 12;
            this->label4->Text = L"Result";
            // 
            // label5
            // 
            this->label5->AutoSize = true;
            this->label5->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 14.25F, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, 
                static_cast<System::Byte>(204)));
            this->label5->Location = System::Drawing::Point(495, 15);
            this->label5->Name = L"label5";
            this->label5->Size = System::Drawing::Size(37, 24);
            this->label5->TabIndex = 12;
            this->label5->Text = L"List";
            // 
            // Form1
            // 
            this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
            this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
            this->ClientSize = System::Drawing::Size(812, 334);
            this->Controls->Add(this->label2);
            this->Controls->Add(this->label5);
            this->Controls->Add(this->label4);
            this->Controls->Add(this->label3);
            this->Controls->Add(this->label1);
            this->Controls->Add(this->textBox5);
            this->Controls->Add(this->button6);
            this->Controls->Add(this->button5);
            this->Controls->Add(this->textBox4);
            this->Controls->Add(this->textBox3);
            this->Controls->Add(this->button4);
            this->Controls->Add(this->button3);
            this->Controls->Add(this->listBox1);
            this->Controls->Add(this->textBox2);
            this->Controls->Add(this->textBox1);
            this->Controls->Add(this->button2);
            this->Controls->Add(this->button1);
            this->Name = L"Form1";
            this->Text = L"Form1";
            this->Load += gcnew System::EventHandler(this, &Form1::Form1_Load);
            this->ResumeLayout(false);
            this->PerformLayout();
 
        }
#pragma endregion
    private: System::Void Form1_Load(System::Object^  sender, System::EventArgs^  e)
             {
             }
 
 
    private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e)
             {
                 this->Close();
             }
 
 
 /************************************************************************************************************/
    private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) 
{
    DeqElem *new_elem = new DeqElem;
    if (new_elem == NULL)
    {
        MessageBox::Show("При выделении памяти произошла ошибка... Повторите попытку","Error",
            MessageBoxButtons::OK,MessageBoxIcon::Error);
    }
    else
    {
 
        if(this->textBox1->Text == "")
        {
          MessageBox::Show("Enter Name","Error",
          MessageBoxButtons::OK,MessageBoxIcon::Error);
          this->Close();
        }
        else  new_elem->name =Convert::ToInt32( this->textBox1->Text);
 
        if(this->textBox2->Text == "")
        {
          MessageBox::Show("Enter Number","Error",
          MessageBoxButtons::OK,MessageBoxIcon::Error);
          this->Close();
        }
        else new_elem->number = Convert::ToDouble(this->textBox2->Text);
 
        if(head == NULL){
            new_elem->next = NULL;
            new_elem->prev = NULL;
            head = new_elem;
            tail = new_elem;
            current = new_elem;
        }else if(current == tail){
            new_elem->next = NULL;
            current->next = new_elem;
            new_elem->prev = current;
            current = new_elem;
            tail = new_elem;
        }else{
            new_elem->next = current->next;
            current->next->prev = new_elem;
            current->next = new_elem;
            new_elem->prev = current;
            current = new_elem;
        }
    }
        this->textBox1->Text = "";
        this->textBox2->Text = "";
 
        listBox1->Items->Add( "Текущая запись:     " + current->name + "  -  " + current->number);
        ch++;
}
 /************************************************************************************************************/
    private: System::Void button3_Click(System::Object^  sender, System::EventArgs^  e) 
             {
    //String ^tmp = listBox1->Items[ch-1]->ToString();
    
    DeqElem *old_elem = current;
    if((old_elem != NULL) && (head == tail)){
        delete old_elem;
        tail = NULL;
        head = NULL;
        current = NULL;
    }
    if ((old_elem != NULL) && (head != tail)){
        if((old_elem != head) && (old_elem != tail)){
            current -> prev -> next = current -> next;
            current -> next -> prev = current -> prev;
            current = current -> prev;
            delete old_elem;
            listBox1->Items->RemoveAt(listBox1->Items->Count-1);
            //ch--;
        }else if(old_elem == tail){
            current = old_elem -> prev;
            current -> next = NULL;
            tail = current;
            delete old_elem;
            listBox1->Items->Clear();
            
            //ch--;
        }else if(old_elem == head){
            current = old_elem -> next;
            current -> prev = NULL;
            head = current;
            delete old_elem;
            listBox1->Items->RemoveAt(listBox1->Items->Count-1);
            //ch--;
            
        }
        
    }
    if(old_elem == NULL)
    {
        MessageBox::Show("ERROR! Elements are absent!","Error",
            MessageBoxButtons::OK,MessageBoxIcon::Error);
        
    }
 
    
 
             }
 /************************************************************************************************************/
 
    
 
private: System::Void button4_Click(System::Object^  sender, System::EventArgs^  e)
         {
             current = head;
             double find_number = 0;
            
             find_number = Convert::ToDouble(this->textBox3->Text);
            while(current != NULL)
            {
            if(current -> number == find_number)
            {
            this->textBox4->Text = "NAME: " + current -> name +"   "+ "NUMBER: " + current -> number;
            break;
            }
            current = current -> next;
            }
            if (this->textBox4->Text == "")this->textBox4->Text = "По вашему запросу ничего не найдено...";
         }
/************************************************************************************************************/
private: System::Void button5_Click(System::Object^  sender, System::EventArgs^  e) 
         {
             DeqElem *start = head;
        while(start != NULL){
        current = start;
        DeqElem *max_elem = start;
        while(current != NULL){
            if(max_elem -> number < current -> number)
                max_elem = current;
            current = current -> next;
        }
        current = start;
 
        int buf_name;
        int buf_number;
        buf_name = current -> name;
        buf_number = current -> number;
        current -> name = max_elem -> name;
        current -> number = max_elem -> number;
        max_elem -> name = buf_name;
        max_elem -> number = buf_number;
 
        start = start -> next;
    }
        /*******************************************/
    current = head;
    listBox1->Items->Clear();
    while(current != NULL){
        listBox1->Items->Add( "NAME: " + current -> name +"   "+ "NUMBER: " + current -> number );
        current = current -> next;
    }
    
    current = tail;
        /*******************************************/
 
         }
/************************************************************************************************************/
private: System::Void button6_Click(System::Object^  sender, System::EventArgs^  e) 
        {
            if(this->listBox1->SelectedIndex > 0)
            {
                String ^It = this->listBox1->Items[this->listBox1->SelectedIndex]->ToString();
                this->textBox5->Text = It;
            }
            else MessageBox::Show("Ничего не выделено\элемент был удален!","Error",MessageBoxButtons::OK,MessageBoxIcon::Error);
        }
/************************************************************************************************************/
};
}