Прочитать серийный номер в отдельной строке

Question

Моя система следующая: в отдельном потоке Мне нужно читать непрерывные данные, поступающие из последовательного порта. Теперь, я могу читать строку довольно хорошо, но только когда я нажимаю на форму (почему?) .. также кнопка Stop Reading не работает, поэтому я уверен, что есть некоторая проблема в мой нить звонит или что-то в этом роде. любая идея? Я не могу найти ошибку .. спасибо много ..

#pragma once 

namespace part1 { 

    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::Ports; 
    using namespace System::Threading; 

    /// <summary> 
    /// Summary for Form1 
    /// </summary> 
    public ref class Form1 : public System::Windows::Forms::Form 
    { 
    public: 
     Form1(void) 
     { 
      InitializeComponent(); 
      // 
      //TODO: Add the constructor code here 
      // 
      findPorts(); 
     } 

    protected: 
     /// <summary> 
     /// Clean up any resources being used. 
     /// </summary> 
     ~Form1() 
     { 
      if (components) 
      { 
       delete components; 
      } 
     } 
    private: System::Windows::Forms::ComboBox^ comboBox1; 
    private: System::IO::Ports::SerialPort^ serialPort1; 
    private: System::Windows::Forms::ComboBox^ comboBox2; 
    private: System::Windows::Forms::Label^ label1; 
    private: System::Windows::Forms::Label^ label2; 
    private: System::Windows::Forms::Button^ button1; 
    private: System::Windows::Forms::Button^ button2; 
    private: System::Windows::Forms::TextBox^ textBox1; 
    private: System::Windows::Forms::TextBox^ textBox2; 
    private: System::Windows::Forms::Button^ button3; 
    private: System::Windows::Forms::Button^ button4; 
    private: System::Windows::Forms::ProgressBar^ progressBar1; 
    private: System::Windows::Forms::Label^ label3; 
    private: System::Windows::Forms::Button^ button5; 
    private: System::ComponentModel::IContainer^ components; 
    protected: 

    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->components = (gcnew System::ComponentModel::Container()); 
      this->comboBox1 = (gcnew System::Windows::Forms::ComboBox()); 
      this->serialPort1 = (gcnew System::IO::Ports::SerialPort(this->components)); 
      this->comboBox2 = (gcnew System::Windows::Forms::ComboBox()); 
      this->label1 = (gcnew System::Windows::Forms::Label()); 
      this->label2 = (gcnew System::Windows::Forms::Label()); 
      this->button1 = (gcnew System::Windows::Forms::Button()); 
      this->button2 = (gcnew System::Windows::Forms::Button()); 
      this->textBox1 = (gcnew System::Windows::Forms::TextBox()); 
      this->textBox2 = (gcnew System::Windows::Forms::TextBox()); 
      this->button3 = (gcnew System::Windows::Forms::Button()); 
      this->button4 = (gcnew System::Windows::Forms::Button()); 
      this->progressBar1 = (gcnew System::Windows::Forms::ProgressBar()); 
      this->label3 = (gcnew System::Windows::Forms::Label()); 
      this->button5 = (gcnew System::Windows::Forms::Button()); 
      this->SuspendLayout(); 
      // 
      // comboBox1 
      // 
      this->comboBox1->DropDownStyle = System::Windows::Forms::ComboBoxStyle::DropDownList; 
      this->comboBox1->FormattingEnabled = true; 
      this->comboBox1->Location = System::Drawing::Point(678, 46); 
      this->comboBox1->Name = L"comboBox1"; 
      this->comboBox1->Size = System::Drawing::Size(121, 21); 
      this->comboBox1->TabIndex = 0; 
      // 
      // serialPort1 
      // 
      this->serialPort1->ReadTimeout = 500; 
      this->serialPort1->WriteTimeout = 500; 
      // 
      // comboBox2 
      // 
      this->comboBox2->DropDownStyle = System::Windows::Forms::ComboBoxStyle::DropDownList; 
      this->comboBox2->FormattingEnabled = true; 
      this->comboBox2->Items->AddRange(gcnew cli::array<System::Object^>(2) {L"9600", L"115200"}); 
      this->comboBox2->Location = System::Drawing::Point(678, 86); 
      this->comboBox2->Name = L"comboBox2"; 
      this->comboBox2->Size = System::Drawing::Size(121, 21); 
      this->comboBox2->TabIndex = 1; 
      // 
      // label1 
      // 
      this->label1->AutoSize = true; 
      this->label1->Location = System::Drawing::Point(608, 49); 
      this->label1->Name = L"label1"; 
      this->label1->Size = System::Drawing::Size(58, 13); 
      this->label1->TabIndex = 2; 
      this->label1->Text = L"COM Ports"; 
      // 
      // label2 
      // 
      this->label2->AutoSize = true; 
      this->label2->Location = System::Drawing::Point(608, 93); 
      this->label2->Name = L"label2"; 
      this->label2->Size = System::Drawing::Size(58, 13); 
      this->label2->TabIndex = 3; 
      this->label2->Text = L"Baud Rate"; 
      // 
      // button1 
      // 
      this->button1->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 8.25F, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->button1->Location = System::Drawing::Point(678, 128); 
      this->button1->Name = L"button1"; 
      this->button1->Size = System::Drawing::Size(90, 55); 
      this->button1->TabIndex = 4; 
      this->button1->Text = L"Init Port"; 
      this->button1->UseVisualStyleBackColor = true; 
      this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click); 
      // 
      // button2 
      // 
      this->button2->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 8.25F, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->button2->Location = System::Drawing::Point(678, 189); 
      this->button2->Name = L"button2"; 
      this->button2->Size = System::Drawing::Size(90, 55); 
      this->button2->TabIndex = 5; 
      this->button2->Text = L"Close Port"; 
      this->button2->UseVisualStyleBackColor = true; 
      this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click); 
      // 
      // textBox1 
      // 
      this->textBox1->BackColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(255)), static_cast<System::Int32>(static_cast<System::Byte>(192)), 
       static_cast<System::Int32>(static_cast<System::Byte>(128))); 
      this->textBox1->Enabled = false; 
      this->textBox1->Location = System::Drawing::Point(59, 80); 
      this->textBox1->Multiline = true; 
      this->textBox1->Name = L"textBox1"; 
      this->textBox1->ReadOnly = true; 
      this->textBox1->Size = System::Drawing::Size(170, 39); 
      this->textBox1->TabIndex = 6; 
      this->textBox1->Text = L"Received Here"; 
      // 
      // textBox2 
      // 
      this->textBox2->BackColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(255)), static_cast<System::Int32>(static_cast<System::Byte>(192)), 
       static_cast<System::Int32>(static_cast<System::Byte>(128))); 
      this->textBox2->Location = System::Drawing::Point(59, 190); 
      this->textBox2->Name = L"textBox2"; 
      this->textBox2->Size = System::Drawing::Size(170, 20); 
      this->textBox2->TabIndex = 7; 
      this->textBox2->Text = L"Enter Here"; 
      // 
      // button3 
      // 
      this->button3->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 8.25F, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->button3->Location = System::Drawing::Point(59, 135); 
      this->button3->Name = L"button3"; 
      this->button3->Size = System::Drawing::Size(75, 40); 
      this->button3->TabIndex = 8; 
      this->button3->Text = L"Send"; 
      this->button3->UseVisualStyleBackColor = true; 
      this->button3->Click += gcnew System::EventHandler(this, &Form1::button3_Click); 
      // 
      // button4 
      // 
      this->button4->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 8.25F, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->button4->Location = System::Drawing::Point(162, 135); 
      this->button4->Name = L"button4"; 
      this->button4->Size = System::Drawing::Size(81, 40); 
      this->button4->TabIndex = 9; 
      this->button4->Text = L"Read"; 
      this->button4->UseVisualStyleBackColor = true; 
      this->button4->Click += gcnew System::EventHandler(this, &Form1::button4_Click); 
      // 
      // progressBar1 
      // 
      this->progressBar1->Location = System::Drawing::Point(59, 46); 
      this->progressBar1->Name = L"progressBar1"; 
      this->progressBar1->Size = System::Drawing::Size(100, 28); 
      this->progressBar1->TabIndex = 10; 
      // 
      // label3 
      // 
      this->label3->AutoSize = true; 
      this->label3->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 8.25F, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->label3->Location = System::Drawing::Point(56, 19); 
      this->label3->Name = L"label3"; 
      this->label3->Size = System::Drawing::Size(70, 13); 
      this->label3->TabIndex = 11; 
      this->label3->Text = L"Port Status"; 
      // 
      // button5 
      // 
      this->button5->Location = System::Drawing::Point(252, 99); 
      this->button5->Name = L"button5"; 
      this->button5->Size = System::Drawing::Size(88, 20); 
      this->button5->TabIndex = 12; 
      this->button5->Text = L"Stop Reading"; 
      this->button5->UseVisualStyleBackColor = true; 
      this->button5->Click += gcnew System::EventHandler(this, &Form1::button5_Click); 
      // 
      // Form1 
      // 
      this->AutoScaleDimensions = System::Drawing::SizeF(6, 13); 
      this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font; 
      this->BackColor = System::Drawing::Color::Silver; 
      this->ClientSize = System::Drawing::Size(932, 485); 
      this->Controls->Add(this->button5); 
      this->Controls->Add(this->label3); 
      this->Controls->Add(this->progressBar1); 
      this->Controls->Add(this->button4); 
      this->Controls->Add(this->button3); 
      this->Controls->Add(this->textBox2); 
      this->Controls->Add(this->textBox1); 
      this->Controls->Add(this->button2); 
      this->Controls->Add(this->button1); 
      this->Controls->Add(this->label2); 
      this->Controls->Add(this->label1); 
      this->Controls->Add(this->comboBox2); 
      this->Controls->Add(this->comboBox1); 
      this->Name = L"Form1"; 
      this->Text = L"Form1"; 
      this->ResumeLayout(false); 
      this->PerformLayout(); 

     } 
#pragma endregion 


     // find available ports 
    private: void findPorts(void) 
      { 
      // get port names 
      array<Object^>^ objectArray = SerialPort::GetPortNames(); 
      // add string array to combobox 
      this->comboBox1->Items->AddRange(objectArray); 

      } 
// init button 
    private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e) { 

       this->textBox1->Text=String::Empty; 
       if(this->comboBox1->Text==String::Empty || this->comboBox2->Text==String::Empty) 
        this->textBox1->Text="Please Select Port Settings"; 
       else { 
        try{ 
         // make sure port isn't open 
        if(!this->serialPort1->IsOpen){ 
         this->serialPort1->PortName=this->comboBox1->Text; 
        //this->textBox1->Text=this->comboBox1->Text; 
         this->serialPort1->BaudRate=Int32::Parse(this->comboBox2->Text); 
        //this->textBox1->Text=this->comboBox2->Text; 
         this->textBox2->Text="Enter Message Here"; 
        //open serial port 
         this->serialPort1->Open(); 
         this->progressBar1->Value=100; 
        } 
        else 
         this->textBox2->Text="Port isn't openned"; 
        } 
        catch(UnauthorizedAccessException^){ 
         this->textBox2->Text="UnauthorizedAccess"; 
        } 
       } 

      } 

// close button 
private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e) { 

       //close serialPort 
       this->serialPort1->Close(); 
       // update progress bar 
       this->progressBar1->Value=0; 
       // Enable read button 
       this->button4->Enabled = true; 
       // Enable the init button 
       this->button1->Enabled = true; 


     } 

     // send button 
private: System::Void button3_Click(System::Object^ sender, System::EventArgs^ e) { 

       // add sender name 
       String^ name = this->serialPort1->PortName; 
       // grab text and store in send buffer 
       //String^ message = this->textBox2->Text; 
       // write to serial 
       if(this->serialPort1->IsOpen) 
        //this->_serialPort->WriteLine(String::Format("<{0}>: {1}",name,message)); 
        this->serialPort1->WriteLine("s"); 
       else 
        this->textBox2->Text="Port Not Opened"; 
       this->textBox2->Text="Abilitate to read"; 

     } 

void UpdateButton() { 
    while(this->textBox2->Text=="Abilitate to read"){ 
        // check if port is ready for reading 
        if(this->serialPort1->IsOpen){ 
          // Reset the text in the result label. 
          // this->textBox1->Text = String::Empty; 

          //this->textBox2->Text="Abilitate to read"; 
           // this will read manually 
           try{ 
            this->textBox1->Text=this->serialPort1->ReadLine(); 
            } 
          catch(TimeoutException^){ 
            this->textBox1->Text="Timeout Exception"; 
           } 
          // Disable the init button 
          // the asynchronous operation is done. 
           this->button1->Enabled = false; 
           } 
         else 
         // give error warning 
         this->textBox1->Text="Port Not Opened"; 
        } 
} 


void ThreadMethod() { 
    this->Invoke(gcnew MethodInvoker(this, &Form1::UpdateButton)); 



} 

     //read button 
private: System::Void button4_Click(System::Object^ sender, System::EventArgs^ e) { 

      Thread^ oThread = gcnew Thread(gcnew ThreadStart(this, &Form1::ThreadMethod)); 
      oThread->Start(); 


      /*while(this->textBox2->Text=="Abilitate to read"){ 
        // check if port is ready for reading 
        if(this->serialPort1->IsOpen){ 
          // Reset the text in the result label. 
          // this->textBox1->Text = String::Empty; 

          //this->textBox2->Text="Abilitate to read"; 
           // this will read manually 
           try{ 
            this->textBox1->Text=this->serialPort1->ReadLine(); 
            } 
          catch(TimeoutException^){ 
            this->textBox1->Text="Timeout Exception"; 
           } 
          // Disable the init button 
          // the asynchronous operation is done. 
           this->button1->Enabled = false; 
           } 
         else 
         // give error warning 
         this->textBox1->Text="Port Not Opened"; 
        }*/ 
     } 
private: System::Void button5_Click(System::Object^ sender, System::EventArgs^ e) { 
      this->textBox2->Text="Stop Reading"; 
      this->button1->Enabled = true; 
     } 
}; 

} 

Я думаю, что проблема должна быть в использовании метода внутри нити, как это:

void ThreadMethod() { 


     while(this->textBox2->Text=="Abilitate to read"){ 
        // check if port is ready for reading 
        if(this->serialPort1->IsOpen){ 
          // Reset the text in the result label. 
          // this->textBox1->Text = String::Empty; 

          //this->textBox2->Text="Abilitate to read"; 
           // this will read manually 
           try{ 
            this->textBox1->Text=this->serialPort1->ReadLine(); 
            } 
          catch(TimeoutException^){ 
            this->textBox1->Text="Timeout Exception"; 
           } 
          // Disable the init button 
          // the asynchronous operation is done. 
           this->button1->Enabled = false; 
           } 
         else 
         // give error warning 
         this->textBox1->Text="Port Not Opened"; 
        } 

} 

     //read button 
private: System::Void button4_Click(System::Object^ sender, System::EventArgs^ e) { 

      Thread^ oThread = gcnew Thread(gcnew ThreadStart(this, &Form1::ThreadMethod)); 
      oThread->Start(); 

} 

й отладчик отправить мне письмо исключение: Я не могу Acces в текстовом поле из другой нити которым был создан

может быть, вместо «это» я могу сослаться на Form1 в только что созданную нить ..

Answer 1

Это окончательное решение :) я использовал BackgroundWorker utylities:

#pragma once 
#include <windows.h> 
namespace test3 { 

    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::Ports; 


    /// <summary> 
    /// Summary for Form1 
    /// </summary> 
    public ref class Form1 : public System::Windows::Forms::Form 
    { 
    public: 

     Form1(void) 
     { 
      InitializeComponent(); 
      findPorts(); 

       // disable this text field 

       this->txtBoxGloveString->Enabled = false; 
      // 
      //TODO: Add the constructor code here 
      // 
     } 

    protected: 
     /// <summary> 
     /// Clean up any resources being used. 
     /// </summary> 
     ~Form1() 
     { 
      if (components) 
      { 
       delete components; 
      } 
     } 
    private: System::IO::Ports::SerialPort^ _serialPort; 
    private: System::Windows::Forms::Button^ btnEnableRead; 
    protected: 

    private: System::Windows::Forms::TextBox^ textBox1; 
    private: System::Windows::Forms::ComboBox^ comboBox1; 
    private: System::Windows::Forms::Button^ button2; 
    private: System::Windows::Forms::ComboBox^ comboBox2; 
    private: System::Windows::Forms::Button^ btnRead; 
    private: System::Windows::Forms::TextBox^ txtBoxGloveString; 




    private: System::Windows::Forms::ProgressBar^ pBPortStatus; 

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

    private: System::Windows::Forms::Label^ label1; 

    private: Microsoft::VisualBasic::PowerPacks::ShapeContainer^ shapeContainer1; 
    private: Microsoft::VisualBasic::PowerPacks::OvalShape^ ovalShape1; 
    private: System::Windows::Forms::Label^ label2; 
    private: System::Windows::Forms::Label^ label3; 
    private: System::ComponentModel::BackgroundWorker^ backgroundWorker1; 
    private: System::Windows::Forms::Button^ button5; 
    private: System::Windows::Forms::ProgressBar^ progressBar2; 

    private: System::ComponentModel::IContainer^ components; 

    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->components = (gcnew System::ComponentModel::Container()); 
      this->_serialPort = (gcnew System::IO::Ports::SerialPort(this->components)); 
      this->btnEnableRead = (gcnew System::Windows::Forms::Button()); 
      this->textBox1 = (gcnew System::Windows::Forms::TextBox()); 
      this->comboBox1 = (gcnew System::Windows::Forms::ComboBox()); 
      this->button2 = (gcnew System::Windows::Forms::Button()); 
      this->comboBox2 = (gcnew System::Windows::Forms::ComboBox()); 
      this->btnRead = (gcnew System::Windows::Forms::Button()); 
      this->txtBoxGloveString = (gcnew System::Windows::Forms::TextBox()); 
      this->pBPortStatus = (gcnew System::Windows::Forms::ProgressBar()); 
      this->btnClosePort = (gcnew System::Windows::Forms::Button()); 
      this->label1 = (gcnew System::Windows::Forms::Label()); 
      this->shapeContainer1 = (gcnew Microsoft::VisualBasic::PowerPacks::ShapeContainer()); 
      this->ovalShape1 = (gcnew Microsoft::VisualBasic::PowerPacks::OvalShape()); 
      this->label2 = (gcnew System::Windows::Forms::Label()); 
      this->label3 = (gcnew System::Windows::Forms::Label()); 
      this->backgroundWorker1 = (gcnew System::ComponentModel::BackgroundWorker()); 
      this->button5 = (gcnew System::Windows::Forms::Button()); 
      this->progressBar2 = (gcnew System::Windows::Forms::ProgressBar()); 
      this->SuspendLayout(); 
      // 
      // _serialPort 
      // 
      this->_serialPort->PortName = L"COM5"; 
      this->_serialPort->ReadTimeout = 500; 
      this->_serialPort->WriteTimeout = 500; 
      // 
      // btnEnableRead 
      // 
      this->btnEnableRead->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->btnEnableRead->Location = System::Drawing::Point(36, 48); 
      this->btnEnableRead->Name = L"btnEnableRead"; 
      this->btnEnableRead->Size = System::Drawing::Size(101, 62); 
      this->btnEnableRead->TabIndex = 0; 
      this->btnEnableRead->Text = L"Send"; 
      this->btnEnableRead->UseVisualStyleBackColor = true; 
      this->btnEnableRead->Click += gcnew System::EventHandler(this, &Form1::btnEnableRead_Click); 
      // 
      // textBox1 
      // 
      this->textBox1->BackColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(255)), static_cast<System::Int32>(static_cast<System::Byte>(192)), 
       static_cast<System::Int32>(static_cast<System::Byte>(128))); 
      this->textBox1->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->textBox1->ForeColor = System::Drawing::SystemColors::Desktop; 
      this->textBox1->Location = System::Drawing::Point(36, 10); 
      this->textBox1->Name = L"textBox1"; 
      this->textBox1->Size = System::Drawing::Size(261, 26); 
      this->textBox1->TabIndex = 1; 
      this->textBox1->Text = L"Enter Here"; 
      // 
      // comboBox1 
      // 
      this->comboBox1->AllowDrop = true; 
      this->comboBox1->DropDownStyle = System::Windows::Forms::ComboBoxStyle::DropDownList; 
      this->comboBox1->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->comboBox1->FormattingEnabled = true; 
      this->comboBox1->Location = System::Drawing::Point(626, 12); 
      this->comboBox1->Name = L"comboBox1"; 
      this->comboBox1->Size = System::Drawing::Size(102, 28); 
      this->comboBox1->TabIndex = 2; 
      // 
      // button2 
      // 
      this->button2->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->button2->Location = System::Drawing::Point(626, 98); 
      this->button2->Name = L"button2"; 
      this->button2->Size = System::Drawing::Size(101, 62); 
      this->button2->TabIndex = 3; 
      this->button2->Text = L"Init Port"; 
      this->button2->UseVisualStyleBackColor = true; 
      this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click); 
      // 
      // comboBox2 
      // 
      this->comboBox2->AllowDrop = true; 
      this->comboBox2->DropDownStyle = System::Windows::Forms::ComboBoxStyle::DropDownList; 
      this->comboBox2->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->comboBox2->FormattingEnabled = true; 
      this->comboBox2->Items->AddRange(gcnew cli::array<System::Object^>(3) {L"9600", L"38400", L"115200"}); 
      this->comboBox2->Location = System::Drawing::Point(626, 64); 
      this->comboBox2->Name = L"comboBox2"; 
      this->comboBox2->Size = System::Drawing::Size(102, 28); 
      this->comboBox2->TabIndex = 4; 
      // 
      // btnRead 
      // 
      this->btnRead->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->btnRead->Location = System::Drawing::Point(36, 116); 
      this->btnRead->Name = L"btnRead"; 
      this->btnRead->Size = System::Drawing::Size(101, 62); 
      this->btnRead->TabIndex = 5; 
      this->btnRead->Text = L"Read"; 
      this->btnRead->UseVisualStyleBackColor = true; 
      this->btnRead->Click += gcnew System::EventHandler(this, &Form1::btnRead_Click); 
      // 
      // txtBoxGloveString 
      // 
      this->txtBoxGloveString->BackColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(255)), 
       static_cast<System::Int32>(static_cast<System::Byte>(192)), static_cast<System::Int32>(static_cast<System::Byte>(128))); 
      this->txtBoxGloveString->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->txtBoxGloveString->Location = System::Drawing::Point(139, 121); 
      this->txtBoxGloveString->Multiline = true; 
      this->txtBoxGloveString->Name = L"txtBoxGloveString"; 
      this->txtBoxGloveString->Size = System::Drawing::Size(260, 26); 
      this->txtBoxGloveString->TabIndex = 7; 
      this->txtBoxGloveString->Text = L"Received Here"; 
      this->txtBoxGloveString->TextChanged += gcnew System::EventHandler(this, &Form1::txtBoxGloveString_TextChanged); 
      // 
      // pBPortStatus 
      // 
      this->pBPortStatus->Location = System::Drawing::Point(463, 121); 
      this->pBPortStatus->Name = L"pBPortStatus"; 
      this->pBPortStatus->Size = System::Drawing::Size(100, 32); 
      this->pBPortStatus->TabIndex = 9; 
      this->pBPortStatus->Click += gcnew System::EventHandler(this, &Form1::pBPortStatus_Click); 
      // 
      // btnClosePort 
      // 
      this->btnClosePort->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->btnClosePort->Location = System::Drawing::Point(626, 167); 
      this->btnClosePort->Name = L"btnClosePort"; 
      this->btnClosePort->Size = System::Drawing::Size(101, 62); 
      this->btnClosePort->TabIndex = 10; 
      this->btnClosePort->Text = L"Close Port"; 
      this->btnClosePort->UseVisualStyleBackColor = true; 
      this->btnClosePort->Click += gcnew System::EventHandler(this, &Form1::btnClosePort_Click); 
      // 
      // label1 
      // 
      this->label1->AutoSize = true; 
      this->label1->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->label1->Location = System::Drawing::Point(458, 98); 
      this->label1->Name = L"label1"; 
      this->label1->Size = System::Drawing::Size(100, 20); 
      this->label1->TabIndex = 11; 
      this->label1->Text = L"Port Status"; 
      // 
      // shapeContainer1 
      // 
      this->shapeContainer1->Location = System::Drawing::Point(0, 0); 
      this->shapeContainer1->Margin = System::Windows::Forms::Padding(0); 
      this->shapeContainer1->Name = L"shapeContainer1"; 
      this->shapeContainer1->Shapes->AddRange(gcnew cli::array<Microsoft::VisualBasic::PowerPacks::Shape^>(1) {this->ovalShape1}); 
      this->shapeContainer1->Size = System::Drawing::Size(761, 444); 
      this->shapeContainer1->TabIndex = 12; 
      this->shapeContainer1->TabStop = false; 
      // 
      // ovalShape1 
      // 
      this->ovalShape1->FillStyle = Microsoft::VisualBasic::PowerPacks::FillStyle::Sphere; 
      this->ovalShape1->Location = System::Drawing::Point(576, 125); 
      this->ovalShape1->Name = L"ovalShape1"; 
      this->ovalShape1->Size = System::Drawing::Size(22, 23); 
      // 
      // label2 
      // 
      this->label2->AutoSize = true; 
      this->label2->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 9.75F, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->label2->Location = System::Drawing::Point(549, 20); 
      this->label2->Name = L"label2"; 
      this->label2->Size = System::Drawing::Size(72, 16); 
      this->label2->TabIndex = 13; 
      this->label2->Text = L"COM Ports"; 
      // 
      // label3 
      // 
      this->label3->AutoSize = true; 
      this->label3->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 9.75F, System::Drawing::FontStyle::Regular, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->label3->Location = System::Drawing::Point(549, 72); 
      this->label3->Name = L"label3"; 
      this->label3->Size = System::Drawing::Size(72, 16); 
      this->label3->TabIndex = 14; 
      this->label3->Text = L"Baud Rate"; 
      // 
      // backgroundWorker1 
      // 
      this->backgroundWorker1->WorkerReportsProgress = true; 
      this->backgroundWorker1->WorkerSupportsCancellation = true; 
      this->backgroundWorker1->DoWork += gcnew System::ComponentModel::DoWorkEventHandler(this, &Form1::backgroundWorker1_DoWork); 
      this->backgroundWorker1->ProgressChanged += gcnew System::ComponentModel::ProgressChangedEventHandler(this, &Form1::backgroundWorker1_ProgressChanged); 
      this->backgroundWorker1->RunWorkerCompleted += gcnew System::ComponentModel::RunWorkerCompletedEventHandler(this, &Form1::backgroundWorker1_RunWorkerCompleted); 
      // 
      // button5 
      // 
      this->button5->Font = (gcnew System::Drawing::Font(L"Microsoft Sans Serif", 12, System::Drawing::FontStyle::Bold, System::Drawing::GraphicsUnit::Point, 
       static_cast<System::Byte>(0))); 
      this->button5->Location = System::Drawing::Point(36, 184); 
      this->button5->Name = L"button5"; 
      this->button5->Size = System::Drawing::Size(101, 62); 
      this->button5->TabIndex = 5; 
      this->button5->Text = L"Cancel Reading"; 
      this->button5->UseVisualStyleBackColor = true; 
      this->button5->Click += gcnew System::EventHandler(this, &Form1::button5_Click); 
      // 
      // progressBar2 
      // 
      this->progressBar2->Location = System::Drawing::Point(139, 346); 
      this->progressBar2->Name = L"progressBar2"; 
      this->progressBar2->Size = System::Drawing::Size(532, 47); 
      this->progressBar2->TabIndex = 15; 
      // 
      // Form1 
      // 
      this->AutoScaleDimensions = System::Drawing::SizeF(6, 13); 
      this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font; 
      this->BackColor = System::Drawing::Color::Silver; 
      this->ClientSize = System::Drawing::Size(761, 444); 
      this->Controls->Add(this->progressBar2); 
      this->Controls->Add(this->button5); 
      this->Controls->Add(this->label3); 
      this->Controls->Add(this->label2); 
      this->Controls->Add(this->label1); 
      this->Controls->Add(this->btnClosePort); 
      this->Controls->Add(this->pBPortStatus); 
      this->Controls->Add(this->txtBoxGloveString); 
      this->Controls->Add(this->btnRead); 
      this->Controls->Add(this->comboBox2); 
      this->Controls->Add(this->button2); 
      this->Controls->Add(this->comboBox1); 
      this->Controls->Add(this->textBox1); 
      this->Controls->Add(this->btnEnableRead); 
      this->Controls->Add(this->shapeContainer1); 
      this->Name = L"Form1"; 
      this->Text = L"Uart Gui v1.1"; 
      this->Load += gcnew System::EventHandler(this, &Form1::Form1_Load); 
      this->ResumeLayout(false); 
      this->PerformLayout(); 

     } 

#pragma endregion 

    // find available ports 
    private: void findPorts(void) 
      { 
      // get port names 
      array<Object^>^ objectArray = SerialPort::GetPortNames(); 
      // add string array to combobox 
      this->comboBox1->Items->AddRange(objectArray); 

      } 
    // Send button 
    private: System::Void btnEnableRead_Click(System::Object^ sender, System::EventArgs^ e) { 
       // add sender name 
       String^ name = this->_serialPort->PortName; 
       // grab text and store in send buffer 
       String^ message = "s"; 
       // write to serial 
       if(this->_serialPort->IsOpen) 
        //this->_serialPort->WriteLine(String::Format("<{0}>: {1}",name,message)); 
        this->_serialPort->WriteLine(message); 
       else 
        this->textBox1->Text="Port Not Opened"; 
      } 
    // Init button------------------------------------ 
    private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e) { 
       this->txtBoxGloveString->Text=String::Empty; 
       if(this->comboBox1->Text==String::Empty || this->comboBox2->Text==String::Empty) 
        this->textBox1->Text="Please Select Port Settings"; 
       else { 
        try{ 
         // make sure port isn't open 
        if(!this->_serialPort->IsOpen){ 
         this->_serialPort->PortName=this->comboBox1->Text; 
        //this->textBox1->Text=this->comboBox1->Text; 
         this->_serialPort->BaudRate=Int32::Parse(this->comboBox2->Text); 
        //this->textBox1->Text=this->comboBox2->Text; 
         this->textBox1->Text="Enter Message Here"; 
        //open serial port 
         this->_serialPort->Open(); 
         this->pBPortStatus->Value=100; 
         this->ovalShape1->FillColor= Color::Green; 
        } 
        else 
         this->textBox1->Text="Port isn't openned"; 
        } 
        catch(UnauthorizedAccessException^){ 
         this->textBox1->Text="UnauthorizedAccess"; 
        } 
       } 



      } 
    // Read button -------------------------------------- 
    //this will start the asyn for backgroundwork 
    private: System::Void btnRead_Click(System::Object^ sender, System::EventArgs^ e) { 

       backgroundWorker1->RunWorkerAsync(10); 


     /* // check if port is ready for reading 
      if(this->_serialPort->IsOpen){ 
       // Reset the text in the result label. 
       this->textBox2->Text = String::Empty; 

       // this will read manually 
       try{ 
       this->textBox2->Text=this->_serialPort->ReadLine(); 
       } 
       catch(TimeoutException^){ 
       this->textBox2->Text="Timeout Exception"; 
       } 
       // Disable the init button 
       // the asynchronous operation is done. 
       this->button2->Enabled = false; 

       this->ovalShape1->FillColor= Color::Green; 
      } 
      else 
       // give error warning 
      this->textBox2->Text="Port Not Opened";*/ 

    } 
    // progress bar ------------------------------------------- 
    private: System::Void pBPortStatus_Click(System::Object^ sender, System::EventArgs^ e) {} 

    // close port button 
    private: System::Void btnClosePort_Click(System::Object^ sender, System::EventArgs^ e) { 
       // add sender name 
       String^ name = this->_serialPort->PortName; 
       // grab text and store in send buffer 
       String^ message = "e"; 
       // write to serial 
       if(this->_serialPort->IsOpen) 
        //this->_serialPort->WriteLine(String::Format("<{0}>: {1}",name,message)); 
        this->_serialPort->WriteLine(message); 
       else 
        this->textBox1->Text="Port Not Opened"; 

       //close serialPort 
       this->_serialPort->Close(); 
       // update progress bar 
       this->pBPortStatus->Value=0; 
       // Enable read button 
       this->button2->Enabled = true; 
       // Enable the init button 
       this->btnRead->Enabled = true; 
       // ovalShape 
       this->ovalShape1->FillColor= Color::Red; 
       Application::Exit();  

     } 
    private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e) { 
     } 


private: System::Void backgroundWorker1_DoWork(System::Object^ sender, System::ComponentModel::DoWorkEventArgs^ e) { 

      int count = (int)e->Argument; 
      int sum = 0; 
      String^ valuestr; 
      while (true){ 
       if (backgroundWorker1->CancellationPending){ 
        e->Cancel=true; 
        break; 
       } 
       if(_serialPort->IsOpen){ 
         try{ 
          valuestr= _serialPort->ReadLine(); 
         } 
        catch(TimeoutException^){ 
          valuestr= "Error"; 
         } 
       } 
       backgroundWorker1->ReportProgress(10,valuestr); 
       System::Threading::Thread::Sleep(1); 
      } 
      e->Result=sum; 
     } 
private: System::Void backgroundWorker1_ProgressChanged(System::Object^ sender, System::ComponentModel::ProgressChangedEventArgs^ e) { 

      txtBoxGloveString->Text=System::Convert::ToString(e->UserState); 

     } 
private: System::Void backgroundWorker1_RunWorkerCompleted(System::Object^ sender, System::ComponentModel::RunWorkerCompletedEventArgs^ e) { 
      progressBar2->Value=0; 
      if(e->Cancelled){ 
       MessageBox::Show("Stop reading glove by the user"); 
      } 
      else{ 
       MessageBox::Show("Result: " + e->Result); 
      } 
     } 
private: System::Void button5_Click(System::Object^ sender, System::EventArgs^ e) { 

      backgroundWorker1->CancelAsync(); 
      progressBar2->Value=0; 

     } 
private: System::Void txtBoxGloveString_TextChanged(System::Object^ sender, System::EventArgs^ e) { 
     } 
}; 
} 

Спасибо ко мне!