Проблема с namespace

namespace Labwork7 {
//...
//далее в пределах пространства имен:
//...
if (((Button^)sender)->Text != "Multiply")
    {
        LabWork7::MainForm::buttonReset(sender, e);
    }

#ifndef mainf
#define mainf
#include "Matrix.h"
Matrix m1(1, 1), m2(1, 1);
Matrix* pMatrix = &m1;
 
namespace Labwork7 {
 
    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>
    /// Сводка для MainForm
    /// </summary>
    public ref class MainForm : public System::Windows::Forms::Form
    {
    public:
        MainForm(void)
        {
            InitializeComponent();
            //
            //TODO: добавьте код конструктора
            //
        }
 
    protected:
        /// <summary>
        /// Освободить все используемые ресурсы.
        /// </summary>
        ~MainForm()
        {
            if (components)
            {
                delete components;
            }
        }
    private: System::Windows::Forms::Button^ buttonAvrg;
    protected:
    private: System::Windows::Forms::Button^ buttonMin;
    protected:
    private: System::Windows::Forms::Button^ buttonMax;
    private: System::Windows::Forms::NumericUpDown^ numericUpDownRows;
    private: System::Windows::Forms::NumericUpDown^ numericUpDownColumns;
 
    private: System::Windows::Forms::Label^ labelRows;
    private: System::Windows::Forms::Label^ labelColumns;
 
    private: System::Windows::Forms::Button^ buttonReset;
    private: System::Windows::Forms::Button^ buttonInverse;
    private: System::Windows::Forms::Button^ buttonTranspose;
    private: System::Windows::Forms::Button^ buttonMultNumber;
    private: System::Windows::Forms::Button^ buttonResult;
    private: System::Windows::Forms::Button^ buttonMultiply;
    private: System::Windows::Forms::Button^ buttonSubstract;
 
    private: System::Windows::Forms::TextBox^ textBoxMain;
    private: System::Windows::Forms::Label^ labelResult;
 
    private: System::Windows::Forms::Button^ buttonPrint;
    private: System::Windows::Forms::Button^ buttonDeterminant;
    private: System::Windows::Forms::Label^ labelMain;
    private: System::Windows::Forms::DataGridView^ dataGridViewMain;
    private: System::Windows::Forms::DataGridViewTextBoxColumn^ Column1;
    private: System::Windows::Forms::DataGridViewTextBoxColumn^ Column2;
    private: System::Windows::Forms::DataGridViewTextBoxColumn^ Column3;
    private: System::Windows::Forms::Button^ buttonAdd;
 
 
 
 
 
 
 
    private:
        /// <summary>
        /// Обязательная переменная конструктора.
        /// </summary>
        System::ComponentModel::Container^ components;
 
#pragma region Windows Form Designer generated code
        /// <summary>
        /// Требуемый метод для поддержки конструктора — не изменяйте 
        /// содержимое этого метода с помощью редактора кода.
        /// </summary>
        void InitializeComponent(void)
        {
            this->buttonAvrg = (gcnew System::Windows::Forms::Button());
            this->buttonMin = (gcnew System::Windows::Forms::Button());
            this->buttonMax = (gcnew System::Windows::Forms::Button());
            this->numericUpDownRows = (gcnew System::Windows::Forms::NumericUpDown());
            this->numericUpDownColumns = (gcnew System::Windows::Forms::NumericUpDown());
            this->labelRows = (gcnew System::Windows::Forms::Label());
            this->labelColumns = (gcnew System::Windows::Forms::Label());
            this->buttonReset = (gcnew System::Windows::Forms::Button());
            this->buttonInverse = (gcnew System::Windows::Forms::Button());
            this->buttonTranspose = (gcnew System::Windows::Forms::Button());
            this->buttonMultNumber = (gcnew System::Windows::Forms::Button());
            this->buttonResult = (gcnew System::Windows::Forms::Button());
            this->buttonMultiply = (gcnew System::Windows::Forms::Button());
            this->buttonSubstract = (gcnew System::Windows::Forms::Button());
            this->textBoxMain = (gcnew System::Windows::Forms::TextBox());
            this->labelResult = (gcnew System::Windows::Forms::Label());
            this->buttonPrint = (gcnew System::Windows::Forms::Button());
            this->buttonDeterminant = (gcnew System::Windows::Forms::Button());
            this->labelMain = (gcnew System::Windows::Forms::Label());
            this->dataGridViewMain = (gcnew System::Windows::Forms::DataGridView());
            this->Column1 = (gcnew System::Windows::Forms::DataGridViewTextBoxColumn());
            this->Column2 = (gcnew System::Windows::Forms::DataGridViewTextBoxColumn());
            this->Column3 = (gcnew System::Windows::Forms::DataGridViewTextBoxColumn());
            this->buttonAdd = (gcnew System::Windows::Forms::Button());
            (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->numericUpDownRows))->BeginInit();
            (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->numericUpDownColumns))->BeginInit();
            (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->dataGridViewMain))->BeginInit();
            this->SuspendLayout();
            // 
            // buttonAvrg
            // 
            this->buttonAvrg->Location = System::Drawing::Point(522, 38);
            this->buttonAvrg->Name = L"buttonAvrg";
            this->buttonAvrg->Size = System::Drawing::Size(75, 23);
            this->buttonAvrg->TabIndex = 31;
            this->buttonAvrg->Text = L"average";
            this->buttonAvrg->UseVisualStyleBackColor = true;
            // 
            // buttonMin
            // 
            this->buttonMin->Location = System::Drawing::Point(603, 9);
            this->buttonMin->Name = L"buttonMin";
            this->buttonMin->Size = System::Drawing::Size(75, 23);
            this->buttonMin->TabIndex = 30;
            this->buttonMin->Text = L"minimum";
            this->buttonMin->UseVisualStyleBackColor = true;
            // 
            // buttonMax
            // 
            this->buttonMax->Location = System::Drawing::Point(522, 9);
            this->buttonMax->Name = L"buttonMax";
            this->buttonMax->Size = System::Drawing::Size(75, 23);
            this->buttonMax->TabIndex = 29;
            this->buttonMax->Text = L"maximum\r\n";
            this->buttonMax->UseVisualStyleBackColor = true;
            // 
            // numericUpDownRows
            // 
            this->numericUpDownRows->Location = System::Drawing::Point(472, 13);
            this->numericUpDownRows->Name = L"numericUpDownRows";
            this->numericUpDownRows->Size = System::Drawing::Size(44, 20);
            this->numericUpDownRows->TabIndex = 32;
            // 
            // numericUpDownColumns
            // 
            this->numericUpDownColumns->Location = System::Drawing::Point(472, 40);
            this->numericUpDownColumns->Name = L"numericUpDownColumns";
            this->numericUpDownColumns->Size = System::Drawing::Size(44, 20);
            this->numericUpDownColumns->TabIndex = 33;
            // 
            // labelRows
            // 
            this->labelRows->AutoSize = true;
            this->labelRows->Location = System::Drawing::Point(431, 16);
            this->labelRows->Name = L"labelRows";
            this->labelRows->Size = System::Drawing::Size(29, 13);
            this->labelRows->TabIndex = 34;
            this->labelRows->Text = L"rows";
            // 
            // labelColumns
            // 
            this->labelColumns->AutoSize = true;
            this->labelColumns->Location = System::Drawing::Point(431, 42);
            this->labelColumns->Name = L"labelColumns";
            this->labelColumns->Size = System::Drawing::Size(26, 13);
            this->labelColumns->TabIndex = 35;
            this->labelColumns->Text = L"cols";
            // 
            // buttonReset
            // 
            this->buttonReset->Location = System::Drawing::Point(359, 66);
            this->buttonReset->Name = L"buttonReset";
            this->buttonReset->Size = System::Drawing::Size(157, 23);
            this->buttonReset->TabIndex = 37;
            this->buttonReset->Text = L"clear";
            this->buttonReset->UseVisualStyleBackColor = true;
            // 
            // buttonInverse
            // 
            this->buttonInverse->Location = System::Drawing::Point(603, 66);
            this->buttonInverse->Name = L"buttonInverse";
            this->buttonInverse->Size = System::Drawing::Size(75, 23);
            this->buttonInverse->TabIndex = 38;
            this->buttonInverse->Text = L"inverse";
            this->buttonInverse->UseVisualStyleBackColor = true;
            // 
            // buttonTranspose
            // 
            this->buttonTranspose->Location = System::Drawing::Point(522, 66);
            this->buttonTranspose->Name = L"buttonTranspose";
            this->buttonTranspose->Size = System::Drawing::Size(75, 23);
            this->buttonTranspose->TabIndex = 39;
            this->buttonTranspose->Text = L"transpose";
            this->buttonTranspose->UseVisualStyleBackColor = true;
            // 
            // buttonMultNumber
            // 
            this->buttonMultNumber->Location = System::Drawing::Point(603, 38);
            this->buttonMultNumber->Name = L"buttonMultNumber";
            this->buttonMultNumber->Size = System::Drawing::Size(75, 23);
            this->buttonMultNumber->TabIndex = 41;
            this->buttonMultNumber->Text = L"multiply";
            this->buttonMultNumber->UseVisualStyleBackColor = true;
            // 
            // buttonResult
            // 
            this->buttonResult->Location = System::Drawing::Point(481, 95);
            this->buttonResult->Name = L"buttonResult";
            this->buttonResult->Size = System::Drawing::Size(34, 23);
            this->buttonResult->TabIndex = 49;
            this->buttonResult->Text = L"=";
            this->buttonResult->UseVisualStyleBackColor = true;
            // 
            // buttonMultiply
            // 
            this->buttonMultiply->Location = System::Drawing::Point(441, 95);
            this->buttonMultiply->Name = L"buttonMultiply";
            this->buttonMultiply->Size = System::Drawing::Size(34, 23);
            this->buttonMultiply->TabIndex = 48;
            this->buttonMultiply->Text = L"*";
            this->buttonMultiply->UseVisualStyleBackColor = true;
            // 
            // buttonSubstract
            // 
            this->buttonSubstract->Location = System::Drawing::Point(401, 95);
            this->buttonSubstract->Name = L"buttonSubstract";
            this->buttonSubstract->Size = System::Drawing::Size(34, 23);
            this->buttonSubstract->TabIndex = 47;
            this->buttonSubstract->Text = L"-";
            this->buttonSubstract->UseVisualStyleBackColor = true;
            // 
            // textBoxMain
            // 
            this->textBoxMain->Location = System::Drawing::Point(15, 119);
            this->textBoxMain->Multiline = true;
            this->textBoxMain->Name = L"textBoxMain";
            this->textBoxMain->Size = System::Drawing::Size(311, 72);
            this->textBoxMain->TabIndex = 50;
            // 
            // labelResult
            // 
            this->labelResult->AutoSize = true;
            this->labelResult->Location = System::Drawing::Point(12, 95);
            this->labelResult->Name = L"labelResult";
            this->labelResult->Size = System::Drawing::Size(32, 13);
            this->labelResult->TabIndex = 59;
            this->labelResult->Text = L"result";
            // 
            // buttonPrint
            // 
            this->buttonPrint->Location = System::Drawing::Point(603, 95);
            this->buttonPrint->Name = L"buttonPrint";
            this->buttonPrint->Size = System::Drawing::Size(75, 23);
            this->buttonPrint->TabIndex = 60;
            this->buttonPrint->Text = L"print";
            this->buttonPrint->UseVisualStyleBackColor = true;
            // 
            // buttonDeterminant
            // 
            this->buttonDeterminant->Location = System::Drawing::Point(522, 95);
            this->buttonDeterminant->Name = L"buttonDeterminant";
            this->buttonDeterminant->Size = System::Drawing::Size(75, 23);
            this->buttonDeterminant->TabIndex = 61;
            this->buttonDeterminant->Text = L"determinant";
            this->buttonDeterminant->UseVisualStyleBackColor = true;
 
            // 
            // labelMain
            // 
            this->labelMain->Location = System::Drawing::Point(356, 122);
            this->labelMain->Name = L"labelMain";
            this->labelMain->Size = System::Drawing::Size(320, 69);
            this->labelMain->TabIndex = 63;
            this->labelMain->Text = L"label5";
            // 
            // dataGridViewMain
            // 
            this->dataGridViewMain->AutoSizeColumnsMode = System::Windows::Forms::DataGridViewAutoSizeColumnsMode::AllCells;
            this->dataGridViewMain->AutoSizeRowsMode = System::Windows::Forms::DataGridViewAutoSizeRowsMode::AllCells;
            this->dataGridViewMain->Columns->AddRange(gcnew cli::array< System::Windows::Forms::DataGridViewColumn^  >(3) {
                this->Column1,
                    this->Column2, this->Column3
            });
            this->dataGridViewMain->Location = System::Drawing::Point(12, 9);
            this->dataGridViewMain->Name = L"dataGridViewMain";
            this->dataGridViewMain->RightToLeft = System::Windows::Forms::RightToLeft::No;
            this->dataGridViewMain->RowHeadersVisible = false;
            this->dataGridViewMain->Size = System::Drawing::Size(314, 80);
            this->dataGridViewMain->TabIndex = 64;
            /*this->dataGridViewMain->CellContentClick += gcnew System::Windows::Forms::DataGridViewCellEventHandler(this, &MainForm::dataGridView1_CellContentClick);*/
            // 
            // Column1
            // 
            this->Column1->HeaderText = L"Column1";
            this->Column1->Name = L"Column1";
            this->Column1->Width = 73;
            // 
            // Column2
            // 
            this->Column2->HeaderText = L"Column2";
            this->Column2->Name = L"Column2";
            this->Column2->Width = 73;
            // 
            // Column3
            // 
            this->Column3->HeaderText = L"Column3";
            this->Column3->Name = L"Column3";
            this->Column3->Width = 73;
            // 
            // buttonAdd
            // 
            this->buttonAdd->Location = System::Drawing::Point(359, 95);
            this->buttonAdd->Name = L"buttonAdd";
            this->buttonAdd->Size = System::Drawing::Size(34, 23);
            this->buttonAdd->TabIndex = 65;
            this->buttonAdd->Text = L"+";
            this->buttonAdd->UseVisualStyleBackColor = true;
            // 
            // MainForm
            // 
            this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
            this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
            this->ClientSize = System::Drawing::Size(688, 217);
            this->Controls->Add(this->buttonAdd);
            this->Controls->Add(this->dataGridViewMain);
            this->Controls->Add(this->labelMain);
            this->Controls->Add(this->buttonDeterminant);
            this->Controls->Add(this->buttonPrint);
            this->Controls->Add(this->labelResult);
            this->Controls->Add(this->textBoxMain);
            this->Controls->Add(this->buttonResult);
            this->Controls->Add(this->buttonMultiply);
            this->Controls->Add(this->buttonSubstract);
            this->Controls->Add(this->buttonMultNumber);
            this->Controls->Add(this->buttonTranspose);
            this->Controls->Add(this->buttonInverse);
            this->Controls->Add(this->buttonReset);
            this->Controls->Add(this->labelColumns);
            this->Controls->Add(this->labelRows);
            this->Controls->Add(this->numericUpDownColumns);
            this->Controls->Add(this->numericUpDownRows);
            this->Controls->Add(this->buttonAvrg);
            this->Controls->Add(this->buttonMin);
            this->Controls->Add(this->buttonMax);
            this->Name = L"MainForm";
            this->Text = L"Matrix";
            (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->numericUpDownRows))->EndInit();
            (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->numericUpDownColumns))->EndInit();
            (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->dataGridViewMain))->EndInit();
            this->ResumeLayout(false);
            this->PerformLayout();
 
        }
#pragma endregion
 
        Button^ pButton = nullptr;
        bool bChanged = false;
 
 
 
 
    private: System::Void buttonResult_Click(System::Object^ sender, System::EventArgs^ e) {
        if (pButton == nullptr || pButton == buttonMultiply)
        {
            Button^ pTemp = pButton;
            pMatrix->MatrixSize(1, 1, false);
            pButton = buttonReset;
            numericUpDownRows->Minimum = Convert::ToDecimal(1);
            numericUpDownColumns->Minimum = Convert::ToDecimal(1);
            numericUpDownRows->Value = Convert::ToDecimal(1);
            numericUpDownColumns->Value = Convert::ToDecimal(1);
            pButton = pTemp;
        }
        else if (pButton == buttonAdd || pButton == buttonSubstract)
        {
            Button^ pTemp = pButton;
            pMatrix->MatrixSize(m1.GetRows(), m1.GetColumns(), false);
            pButton = buttonReset;
            numericUpDownRows->Minimum = Convert::ToDecimal(pMatrix->GetRows());
            numericUpDownColumns->Minimum = Convert::ToDecimal(pMatrix->GetColumns());
            numericUpDownRows->Value = Convert::ToDecimal(pMatrix->GetRows());
            numericUpDownColumns->Value = Convert::ToDecimal(pMatrix->GetColumns());
            pButton = pTemp;
        }
        DataTable^ dataTable = gcnew DataTable();
        *pMatrix >> dataTable;
        dataGridViewMain->DataSource = dataTable;
    }
 
    private: System::Void buttonValue_Click(System::Object^ sender, System::EventArgs^ e) {
        if (((Button^)sender)->Text == "Max Value")
        {
            labelMain->Text = Convert::ToString(pMatrix->MatrixMax());
        }
        else if (((Button^)sender)->Text == "Min Value")
        {
            labelMain->Text = Convert::ToString(pMatrix->MatrixMin());
        }
        else if (((Button^)sender)->Text == "Aver. Value")
        {
            labelMain->Text = Convert::ToString(pMatrix->MatrixAvrg());
        }
    }
 
    private: System::Void dataGridViewMain_CellValueChanged(System::Object^ sender, System::Windows::Forms::DataGridViewCellEventArgs^ e) {
        *pMatrix << dataGridViewMain;
    }
private: System::Void buttonTranspos_Click(System::Object^ sender, System::EventArgs^ e) {
    if (pMatrix == &m1)
    {
        m1.MatrixTransposition();
        pMatrix = &m1;
    }
    else if (pMatrix == &m2)
    {
        m2.MatrixTransposition();
        pMatrix = &m2;
    }
    DataTable^ dataTable = gcnew DataTable();
    *pMatrix >> dataTable;
    dataGridViewMain->DataSource = dataTable;
    pButton = buttonReset;
    numericUpDownRows->Minimum = Convert::ToDecimal(pMatrix->GetRows());
    numericUpDownColumns->Minimum = Convert::ToDecimal(pMatrix->GetColumns());
    numericUpDownRows->Value = Convert::ToDecimal(pMatrix->GetRows());
    numericUpDownColumns->Value = Convert::ToDecimal(pMatrix->GetColumns());
    pButton = nullptr;
    labelMain->Text = "Matrix transpositioned.";
}
private: System::Void buttonInverse_Click(System::Object^ sender, System::EventArgs^ e) {
    if (pMatrix->GetRows() != pMatrix->GetColumns())
    {
        labelMain->Text = "Matrix is not square. Determinant cannot be found.";
    }
    else
    {
        Matrix mInversed(pMatrix->GetRows(), pMatrix->GetColumns());
        bool bRes = MatrixInversed(*pMatrix, mInversed);
        if (bRes == false)
        {
            labelMain->Text = "Determinant of matrix is zero. Inverse matrix cannot be found.";
        }
        else
        {
            DataTable^ dataTable = gcnew DataTable();
            mInversed >> dataTable;
            dataGridViewMain->DataSource = dataTable;
            *pMatrix = mInversed;
            labelMain->Text = "Matrix inversed.";
        }
    }
}
private: System::Void numericUpDown_ValueChanged(System::Object^ sender, System::EventArgs^ e) {
    if ((Convert::ToInt32(numericUpDownRows->Value) * Convert::ToInt32(numericUpDownColumns->Value)) >= (pMatrix->GetRows() * pMatrix->GetColumns()) && pButton != buttonReset)
    {
        if (Convert::ToUInt32(numericUpDownRows->Value) > pMatrix->GetRows())
        {
            numericUpDownRows->Minimum = Convert::ToDecimal(pMatrix->GetRows() + 1);
        }
        else if (Convert::ToUInt32(numericUpDownColumns->Value) > pMatrix->GetColumns())
        {
            numericUpDownColumns->Minimum = Convert::ToDecimal(pMatrix->GetColumns() + 1);
        }
        pMatrix->MatrixSize(Convert::ToUInt32(numericUpDownRows->Value), Convert::ToUInt32(numericUpDownColumns->Value), true);
        DataTable^ dataTable = gcnew DataTable();
        *pMatrix >> dataTable;
        dataGridViewMain->DataSource = dataTable;
    }
    else if (pButton != buttonReset)
    {
        labelMain->Text = "Enter size of an equal or bigger matrix.";
    }
}
private: System::Void buttonOperation_Click(System::Object^ sender, System::EventArgs^ e) {
    labelMain->Text = "Enter second matrix.";
    pMatrix = &m2;
    if (((Button^)sender)->Text == "+")
    {
        pButton = buttonAdd;
    }
    else if (((Button^)sender)->Text == "-")
    {
        pButton = buttonSubstract;
    }
    else if (((Button^)sender)->Text == "*")
    {
        pButton = buttonMultiply;
    }
    else if (((Button^)sender)->Text == "Multiply")
    {
        pButton = buttonMultNumber;
        labelMain->Text = "Enter your number in the text box and press =.";
        textBoxMain->Text = "";
        textBoxMain->ReadOnly = false;
    }
    if (((Button^)sender)->Text != "Multiply")
    {
        LabWork7::MainForm::buttonReset(sender, e);
    }
}
private: System::Void buttonResult_Click(System::Object^ sender, System::EventArgs^ e) {
    bool bResult = false;
    pMatrix->MatrixSize(Convert::ToUInt32(numericUpDownRows->Value), Convert::ToInt32(numericUpDownColumns->Value), false);
    *pMatrix << dataGridViewMain;
    Matrix m3(m1.GetRows(), m1.GetColumns());
    if (pButton == buttonAdd && m1.GetRows() == m2.GetRows() && m1.GetColumns() == m2.GetColumns())
    {
        m3 = m1 + m2;
        bResult = true;
    }
    else if (pButton == buttonSubstract && m1.GetRows() == m2.GetRows() && m1.GetColumns() == m2.GetColumns())
    {
        m3 = m1 - m2;
        bResult = true;
    }
    else if (pButton == buttonSubstract || pButton == buttonAdd)
    {
        labelMain->Text = "You can substract or add only equally sized matrix.";
    }
    if (pButton == buttonMultiply)
    {
        if (m1.GetColumns() == m2.GetRows())
        {
            m3.MatrixSize(m1.GetRows(), m2.GetColumns(), false);
            m3 = m1 * m2;
            bResult = true;
        }
        else
        {
            labelMain->Text = "You can multiply 2 matrix only if M1.Columns = M2.Rows.";
        }
    }
    else if (pButton == buttonMultNumber)
    {
        m3 = m1 * Convert::ToDouble(textBoxMain->Text);
        bResult = true;
        textBoxMain->Text = "";
        textBoxMain->ReadOnly = true;
    }
    pButton = nullptr;
    if (bResult == true)
    {
        DataTable^ dataTable = gcnew DataTable();
        m3 >> dataTable;
        dataGridViewMain->DataSource = dataTable;
        labelMain->Text = "Operation performed.";
        pMatrix = &m1;
    }
}
private: System::Void buttonDeterminant_Click(System::Object^ sender, System::EventArgs^ e) {
    if (pMatrix->GetRows() != pMatrix->GetColumns())
    {
        labelMain->Text = "Matrix is not square. Determinant cannot be found.";
    }
    else
    {
        labelMain->Text = Convert::ToString(pMatrix->GetDeterminant(*pMatrix, pMatrix->GetRows()));
    }
}
private: System::Void buttonPrint_Click(System::Object^ sender, System::EventArgs^ e) {
    *pMatrix << textBoxMain;
}
private: System::Void MainForm_Load(System::Object^ sender, System::EventArgs^ e) {
    DataTable^ dataTable = gcnew DataTable();
    *pMatrix >> dataTable;
    dataGridViewMain->DataSource = dataTable;
}
};
}
#endif