SaveFileDialog

I am trying to make a SaveFileDialog, I've never made one before so I was trying to. I'm not sure where I'm going wrong, I know that theres streaming involved and stuff like that but I'm getting errors.

Heres my code:

#pragma once

namespace Save {

using namespace System;

using namespace System::ComponentModel;

using namespace System::Collections;

using namespace System::IO;

using namespace System::Windows::Forms;

using namespace System::Data;

using namespace System::Drawing;

using namespace System::Runtime::Serialization;

using namespace System::Runtime::Serialization::Formatters::Binary;

/// <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)

//

//TODO: Add the constructor code here

//

protected:

/// <summary>

/// Clean up any resources being used.

/// </summary>

if (components)

delete components;

private: System::Windows::Forms::Button^ button1;

protected:

private: System::Windows::Forms::SaveFileDialog^ saveFileDialog1;

private: System::Windows::Forms::RichTextBox^ richTextBox1;

private:

/// <summary>

/// Required designer variable.

/// </summary>

#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->saveFileDialog1 = (gcnew System::Windows::Forms::SaveFileDialog());

this->richTextBox1 = (gcnew System::Windows::Forms::RichTextBox());

this->SuspendLayout();

//

// button1

//

this->button1->Location = System::Drawing::Point(13, 13);

this->button1->Name = L"button1";

this->button1->Size = System::Drawing::Size(75, 23);

this->button1->TabIndex = 0;

this->button1->Text = L"button1";

this->button1->UseVisualStyleBackColor = true;

this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);

//

// richTextBox1

//

this->richTextBox1->Location = System::Drawing::Point(89, 78);

this->richTextBox1->Name = L"richTextBox1";

this->richTextBox1->Size = System::Drawing::Size(100, 96);

this->richTextBox1->TabIndex = 1;

this->richTextBox1->Text = L"";

//

// Form1

//

this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);

this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;

this->ClientSize = System::Drawing::Size(292, 266);

this->Controls->Add(this->richTextBox1);

this->Controls->Add(this->button1);

this->Name = L"Form1";

this->Text = L"Form1";

this->ResumeLayout(false);

#pragma endregion

private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {

saveFileDialog1->DefaultExt = "*.rtf";

saveFileDialog1->FileName = "Untitled.rtf";

saveFileDialog1->Filter = "Rich Text Format (.rtf)|.rtf";

saveFileDialog1->Title = "Save File";

private: System::Void Save_Document(string fileName) {

BinaryFormatter b = gcnew BinaryFormatter();