How I can run the thread in functions in C++ cli without problems?

<pre>#pragma once
#include <thread>
using namespace std;
namespace Project1 {
	
	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>
	/// Summary for MyForm
	/// </summary>
	public ref class MyForm : public System::Windows::Forms::Form
	{
	public:
		MyForm(void)
		{
			InitializeComponent();
			//
			//TODO: Add the constructor code here
			//
		}

	protected:
		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		~MyForm()
		{
			if (components)
			{
				delete components;
			}
		}
	private: System::Windows::Forms::Button^ button1;
	private: System::Windows::Forms::ListBox^ listBox1;
	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->listBox1 = (gcnew System::Windows::Forms::ListBox());
			this->SuspendLayout();
			// 
			// button1
			// 
			this->button1->Location = System::Drawing::Point(33, 51);
			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, &MyForm::button1_Click);
			// 
			// listBox1
			// 
			this->listBox1->FormattingEnabled = true;
			this->listBox1->Location = System::Drawing::Point(279, 29);
			this->listBox1->Name = L"listBox1";
			this->listBox1->Size = System::Drawing::Size(155, 225);
			this->listBox1->TabIndex = 1;
			this->listBox1->SelectedIndexChanged += gcnew System::EventHandler(this, &MyForm::listBox1_SelectedIndexChanged);
			// 
			// MyForm
			// 
			this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
			this->ClientSize = System::Drawing::Size(542, 348);
			this->Controls->Add(this->listBox1);
			this->Controls->Add(this->button1);
			this->Name = L"MyForm";
			this->Text = L"MyForm";
			this->Load += gcnew System::EventHandler(this, &MyForm::MyForm_Load);
			this->ResumeLayout(false);

		}
/////I WANT TO MAKE THREAD FOR THIS FUNCTION AND MORE /////
		int testfun(int o , int lol) {
			for (int i = o; i < lol; i++)
			{
				listBox1->Items->Add(i);
				return 0;
			}
		
		
		}
#pragma endregion
	private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) {

/////BUT THIS CODE HERE IS NOT WORKING :::: /////
// LOT OF PROBLEMS :
//1-std::array': too few template arguments
//2-'^': cannot use this indirection on type 'std::array'
//3-no instance of constructor "std::thread::thread" matches the argument //list
//4-too few arguments for class template "std::array"

//////
		std::thread porsst(testfun, 1, 5);
		porsst.join();
	}
	private: System::Void MyForm_Load(System::Object^ sender, System::EventArgs^ e) {
	}
	private: System::Void listBox1_SelectedIndexChanged(System::Object^ sender, System::EventArgs^ e) {
	}
	};
}

// LOT OF PROBLEMS :
//1-std::array': too few template arguments
//2-'^': cannot use this indirection on type 'std::array'
//3-no instance of constructor "std::thread::thread" matches the argument //list
//4-too few arguments for class template "std::array"