StreamWriter in Visual C++

Hello, I am semi new to C++ and using Microsoft Visual C++ 2010. I am trying to have a user save a string from a rich text box using streamwriter. But when I try to build this I get tons of errors.
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#pragma once

namespace Test2 {

	using namespace System;
	using namespace System::ComponentModel;
	using namespace System::Collections;
	using namespace System::Windows::Forms;
	using namespace System::Data;
	using namespace System::Drawing;
	using namespace System::IO::StreamWriter;

	/// <summary>
	/// Summary for Form1
	/// </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::TextBox^  textBox1;
	protected: 
	private: System::Windows::Forms::Button^  button1;
	private: System::Windows::Forms::RichTextBox^  richTextBox1;
	private: System::Windows::Forms::Button^  button2;
	private: System::Windows::Forms::SaveFileDialog^  saveFileDialog1;

	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->textBox1 = (gcnew System::Windows::Forms::TextBox());
			this->button1 = (gcnew System::Windows::Forms::Button());
			this->richTextBox1 = (gcnew System::Windows::Forms::RichTextBox());
			this->button2 = (gcnew System::Windows::Forms::Button());
			this->saveFileDialog1 = (gcnew System::Windows::Forms::SaveFileDialog());
			this->SuspendLayout();
			// 
			// textBox1
			// 
			this->textBox1->Location = System::Drawing::Point(13, 13);
			this->textBox1->Name = L"textBox1";
			this->textBox1->Size = System::Drawing::Size(228, 20);
			this->textBox1->TabIndex = 0;
			// 
			// button1
			// 
			this->button1->Location = System::Drawing::Point(248, 9);
			this->button1->Name = L"button1";
			this->button1->Size = System::Drawing::Size(34, 23);
			this->button1->TabIndex = 1;
			this->button1->Text = L"...";
			this->button1->UseVisualStyleBackColor = true;
			this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
			// 
			// richTextBox1
			// 
			this->richTextBox1->Location = System::Drawing::Point(13, 60);
			this->richTextBox1->Name = L"richTextBox1";
			this->richTextBox1->Size = System::Drawing::Size(259, 190);
			this->richTextBox1->TabIndex = 2;
			this->richTextBox1->Text = L"";
			// 
			// button2
			// 
			this->button2->Location = System::Drawing::Point(12, 35);
			this->button2->Name = L"button2";
			this->button2->Size = System::Drawing::Size(75, 23);
			this->button2->TabIndex = 3;
			this->button2->Text = L"Save";
			this->button2->UseVisualStyleBackColor = true;
			// 
			// Form1
			// 
			this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
			this->ClientSize = System::Drawing::Size(284, 262);
			this->Controls->Add(this->button2);
			this->Controls->Add(this->richTextBox1);
			this->Controls->Add(this->button1);
			this->Controls->Add(this->textBox1);
			this->Name = L"Form1";
			this->Text = L"Test";
			this->ResumeLayout(false);
			this->PerformLayout();

		}
#pragma endregion	
	private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) {
				 Stream myStream;
					 SaveFileDialog ^ saveFileDialog1 = gcnew SaveFileDialog();
					 saveFileDialog1->Filter = "txt files (*.txt)|*.txt";
					 saveFileDialog1->Title = "Save";
					 if(saveFileDialog1.ShowDialog() == DialogResult.OK)
					 {
						 if((myStream = saveFileDialog1.OpenFile()) != null)
							 {
								 StreamWriter wText = gcnew StreamWriter(myStream);

								 wText.Write(richTextBox1.Text);

								 myStream.Close();
						 }
					 }

	}
}
Please help me, I am not even sure if I am doing this right.
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