Калькулятор (некоторые ошибки)

#pragma once
 
namespace clac_test {
 
    using namespace System;
    using namespace System::ComponentModel;
    using namespace System::Collections;
    using namespace System::Windows::Forms;
    using namespace System::Data;
    using namespace System::Drawing;
 
    bool n=0;
 
 
    /// <summary>
    /// Сводка для Form1
    /// </summary>
    public ref class Form1 : public System::Windows::Forms::Form
    {
    public:
        Form1(void)
        {
            InitializeComponent();
            //
            //TODO: добавьте код конструктора
            //
        }
 
    protected:
        /// <summary>
        /// Освободить все используемые ресурсы.
        /// </summary>
        ~Form1()
        {
            if (components)
            {
                delete components;
            }
        }
    private: System::Windows::Forms::TextBox^  input1;
    protected: 
    private: System::Windows::Forms::Label^  label1;
    private: System::Windows::Forms::TextBox^  input2;
    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::Label^  label2;
    private: System::Windows::Forms::Button^  button7;
    private: System::Windows::Forms::Button^  button8;
    private: System::Windows::Forms::Button^  button9;
    private: System::Windows::Forms::Button^  button10;
    private: System::Windows::Forms::Button^  button11;
    private: System::Windows::Forms::Button^  button12;
    private: System::Windows::Forms::Button^  button13;
    private: System::Windows::Forms::Button^  button14;
    private: System::Windows::Forms::Button^  button15;
    private: System::Windows::Forms::Button^  button16;
    private: System::Windows::Forms::Button^  button17;
 
    private:
        /// <summary>
        /// Требуется переменная конструктора.
        /// </summary>
        System::ComponentModel::Container ^components;
 
#pragma region Windows Form Designer generated code
        /// <summary>
        /// Обязательный метод для поддержки конструктора - не изменяйте
        /// содержимое данного метода при помощи редактора кода.
        /// </summary>
        void InitializeComponent(void)
        {
            this->input1 = (gcnew System::Windows::Forms::TextBox());
            this->label1 = (gcnew System::Windows::Forms::Label());
            this->input2 = (gcnew System::Windows::Forms::TextBox());
            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->label2 = (gcnew System::Windows::Forms::Label());
            this->button7 = (gcnew System::Windows::Forms::Button());
            this->button8 = (gcnew System::Windows::Forms::Button());
            this->button9 = (gcnew System::Windows::Forms::Button());
            this->button10 = (gcnew System::Windows::Forms::Button());
            this->button11 = (gcnew System::Windows::Forms::Button());
            this->button12 = (gcnew System::Windows::Forms::Button());
            this->button13 = (gcnew System::Windows::Forms::Button());
            this->button14 = (gcnew System::Windows::Forms::Button());
            this->button15 = (gcnew System::Windows::Forms::Button());
            this->button16 = (gcnew System::Windows::Forms::Button());
            this->button17 = (gcnew System::Windows::Forms::Button());
            this->SuspendLayout();
            // 
            // input1
            // 
            this->input1->Location = System::Drawing::Point(153, 12);
            this->input1->Name = L"input1";
            this->input1->Size = System::Drawing::Size(100, 20);
            this->input1->TabIndex = 0;
            // 
            // label1
            // 
            this->label1->AutoSize = true;
            this->label1->Location = System::Drawing::Point(179, 35);
            this->label1->Name = L"label1";
            this->label1->Size = System::Drawing::Size(0, 13);
            this->label1->TabIndex = 1;
            // 
            // input2
            // 
            this->input2->Location = System::Drawing::Point(153, 62);
            this->input2->Name = L"input2";
            this->input2->Size = System::Drawing::Size(100, 20);
            this->input2->TabIndex = 2;
            // 
            // button1
            // 
            this->button1->Location = System::Drawing::Point(164, 178);
            this->button1->Name = L"button1";
            this->button1->Size = System::Drawing::Size(75, 37);
            this->button1->TabIndex = 3;
            this->button1->Text = L"Enter";
            this->button1->UseVisualStyleBackColor = true;
            this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
            // 
            // button2
            // 
            this->button2->Location = System::Drawing::Point(163, 149);
            this->button2->Name = L"button2";
            this->button2->Size = System::Drawing::Size(75, 23);
            this->button2->TabIndex = 4;
            this->button2->Text = L"+";
            this->button2->UseVisualStyleBackColor = true;
            this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);
            // 
            // button3
            // 
            this->button3->Location = System::Drawing::Point(244, 149);
            this->button3->Name = L"button3";
            this->button3->Size = System::Drawing::Size(75, 23);
            this->button3->TabIndex = 5;
            this->button3->Text = L"-";
            this->button3->UseVisualStyleBackColor = true;
            this->button3->Click += gcnew System::EventHandler(this, &Form1::button3_Click);
            // 
            // button4
            // 
            this->button4->Location = System::Drawing::Point(82, 185);
            this->button4->Name = L"button4";
            this->button4->Size = System::Drawing::Size(75, 23);
            this->button4->TabIndex = 6;
            this->button4->Text = L"/";
            this->button4->UseVisualStyleBackColor = true;
            this->button4->Click += gcnew System::EventHandler(this, &Form1::button4_Click);
            // 
            // button5
            // 
            this->button5->Location = System::Drawing::Point(82, 149);
            this->button5->Name = L"button5";
            this->button5->Size = System::Drawing::Size(75, 23);
            this->button5->TabIndex = 7;
            this->button5->Text = L"*";
            this->button5->UseVisualStyleBackColor = true;
            this->button5->Click += gcnew System::EventHandler(this, &Form1::button5_Click);
            // 
            // button6
            // 
            this->button6->Location = System::Drawing::Point(244, 185);
            this->button6->Name = L"button6";
            this->button6->Size = System::Drawing::Size(75, 23);
            this->button6->TabIndex = 8;
            this->button6->Text = L"Clear";
            this->button6->UseVisualStyleBackColor = true;
            this->button6->Click += gcnew System::EventHandler(this, &Form1::button6_Click);
            // 
            // label2
            // 
            this->label2->AutoSize = true;
            this->label2->Location = System::Drawing::Point(190, 99);
            this->label2->Name = L"label2";
            this->label2->Size = System::Drawing::Size(37, 13);
            this->label2->TabIndex = 9;
            this->label2->Text = L"Ответ";
            // 
            // button7
            // 
            this->button7->Location = System::Drawing::Point(83, 228);
            this->button7->Name = L"button7";
            this->button7->Size = System::Drawing::Size(75, 23);
            this->button7->TabIndex = 10;
            this->button7->Text = L"1";
            this->button7->UseVisualStyleBackColor = true;
            this->button7->Click += gcnew System::EventHandler(this, &Form1::button7_Click);
            // 
            // button8
            // 
            this->button8->Location = System::Drawing::Point(164, 228);
            this->button8->Name = L"button8";
            this->button8->Size = System::Drawing::Size(75, 23);
            this->button8->TabIndex = 11;
            this->button8->Text = L"2";
            this->button8->UseVisualStyleBackColor = true;
            this->button8->Click += gcnew System::EventHandler(this, &Form1::button7_Click);
            // 
            // button9
            // 
            this->button9->Location = System::Drawing::Point(245, 228);
            this->button9->Name = L"button9";
            this->button9->Size = System::Drawing::Size(75, 23);
            this->button9->TabIndex = 12;
            this->button9->Text = L"3";
            this->button9->UseVisualStyleBackColor = true;
            this->button9->Click += gcnew System::EventHandler(this, &Form1::button7_Click);
            // 
            // button10
            // 
            this->button10->Location = System::Drawing::Point(83, 257);
            this->button10->Name = L"button10";
            this->button10->Size = System::Drawing::Size(75, 23);
            this->button10->TabIndex = 13;
            this->button10->Text = L"4";
            this->button10->UseVisualStyleBackColor = true;
            this->button10->Click += gcnew System::EventHandler(this, &Form1::button7_Click);
            // 
            // button11
            // 
            this->button11->Location = System::Drawing::Point(163, 257);
            this->button11->Name = L"button11";
            this->button11->Size = System::Drawing::Size(75, 23);
            this->button11->TabIndex = 14;
            this->button11->Text = L"5";
            this->button11->UseVisualStyleBackColor = true;
            this->button11->Click += gcnew System::EventHandler(this, &Form1::button7_Click);
            // 
            // button12
            // 
            this->button12->Location = System::Drawing::Point(244, 257);
            this->button12->Name = L"button12";
            this->button12->Size = System::Drawing::Size(75, 23);
            this->button12->TabIndex = 15;
            this->button12->Text = L"6";
            this->button12->UseVisualStyleBackColor = true;
            this->button12->Click += gcnew System::EventHandler(this, &Form1::button7_Click);
            // 
            // button13
            // 
            this->button13->Location = System::Drawing::Point(83, 286);
            this->button13->Name = L"button13";
            this->button13->Size = System::Drawing::Size(75, 23);
            this->button13->TabIndex = 16;
            this->button13->Text = L"7";
            this->button13->UseVisualStyleBackColor = true;
            this->button13->Click += gcnew System::EventHandler(this, &Form1::button7_Click);
            // 
            // button14
            // 
            this->button14->Location = System::Drawing::Point(163, 286);
            this->button14->Name = L"button14";
            this->button14->Size = System::Drawing::Size(75, 23);
            this->button14->TabIndex = 17;
            this->button14->Text = L"8";
            this->button14->UseVisualStyleBackColor = true;
            this->button14->Click += gcnew System::EventHandler(this, &Form1::button7_Click);
            // 
            // button15
            // 
            this->button15->Location = System::Drawing::Point(244, 286);
            this->button15->Name = L"button15";
            this->button15->Size = System::Drawing::Size(75, 23);
            this->button15->TabIndex = 18;
            this->button15->Text = L"9";
            this->button15->UseVisualStyleBackColor = true;
            this->button15->Click += gcnew System::EventHandler(this, &Form1::button7_Click);
            // 
            // button16
            // 
            this->button16->Location = System::Drawing::Point(163, 315);
            this->button16->Name = L"button16";
            this->button16->Size = System::Drawing::Size(75, 23);
            this->button16->TabIndex = 19;
            this->button16->Text = L"0";
            this->button16->UseVisualStyleBackColor = true;
            this->button16->Click += gcnew System::EventHandler(this, &Form1::button7_Click);
            // 
            // button17
            // 
            this->button17->Location = System::Drawing::Point(23, 99);
            this->button17->Name = L"button17";
            this->button17->Size = System::Drawing::Size(75, 23);
            this->button17->TabIndex = 20;
            this->button17->Text = L"1/x";
            this->button17->UseVisualStyleBackColor = true;
            this->button17->Click += gcnew System::EventHandler(this, &Form1::button17_Click);
            // 
            // Form1
            // 
            this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
            this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
            this->ClientSize = System::Drawing::Size(399, 350);
            this->Controls->Add(this->button17);
            this->Controls->Add(this->button16);
            this->Controls->Add(this->button15);
            this->Controls->Add(this->button14);
            this->Controls->Add(this->button13);
            this->Controls->Add(this->button12);
            this->Controls->Add(this->button11);
            this->Controls->Add(this->button10);
            this->Controls->Add(this->button9);
            this->Controls->Add(this->button8);
            this->Controls->Add(this->button7);
            this->Controls->Add(this->label2);
            this->Controls->Add(this->button6);
            this->Controls->Add(this->button5);
            this->Controls->Add(this->button4);
            this->Controls->Add(this->button3);
            this->Controls->Add(this->button2);
            this->Controls->Add(this->button1);
            this->Controls->Add(this->input2);
            this->Controls->Add(this->label1);
            this->Controls->Add(this->input1);
            this->Name = L"Form1";
            this->Text = L"Калькулятор";
            this->ResumeLayout(false);
            this->PerformLayout();
 
        }
#pragma endregion
        char c; double x,y,d;
    private: System::Void button5_Click(System::Object^  sender, System::EventArgs^  e) {
                 this->label1->Text = "*";  c = '*';
                 n=true;
             }
private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) {
              this->label1->Text = "+";  c = '+';
              n=true;
         }
private: System::Void button3_Click(System::Object^  sender, System::EventArgs^  e) {
              this->label1->Text = "-";  c = '-';
              n=true;
         }
private: System::Void button4_Click(System::Object^  sender, System::EventArgs^  e) {
              this->label1->Text = "/";  c = '/';
              n=true;
         }
private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
             x= System::Convert::ToInt32(this->input1->Text);
             y=System::Convert::ToInt32(this->input2->Text);
             switch(c)
             {
             case '*':d=x*y;break;
             case '/':d=x/y;break;
             case '+':d=x+y;break;
             case '-':d=x-y;break;
             case 'x':d=1/x;break;
 
             }
             this->label2->Text=System::Convert::ToString(d);
         }
private: System::Void button6_Click(System::Object^  sender, System::EventArgs^  e) {
             this->input2->Text=""; this->input1->Text="";
             this->label1->Text="";this->label2->Text="";
            
 
         }
private: System::Void button7_Click(System::Object^  sender, System::EventArgs^  e) {
            if (!n) input1->Text+=((Button^)sender)->Text;
            else input2->Text+=((Button^)sender)->Text;
         }
private: System::Void button17_Click(System::Object^  sender, System::EventArgs^  e) {
             this->label1->Text = "1/x";  c = 'x';
              n=true;
 
         }
};
}