Tukukkk

There is such a task:
Need to implement a program. The program has a text box and the ability to open text files and paste text from a file into this text box.
Also, the program should record audio. For this, I use the NAudio library.
When you press CTRL + 1, audio is recording. When you press CTRL + 2, stop record.
Each file is recorded by record number. The number is incremented after each entry.
I implemented the program correctly, I took the code from NAudio from the article about recording audio in C # through NAudio. There was a write code right there in the button event, but I implemented separate methods.
As a result, Visual Studio produces a list of errors.
Please help me figure it out.
Form File Code:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using NAudio.Wave;

using NAudio.FileFormats;

using NAudio.CoreAudioApi;

using NAudio;

 

namespace RecordBooks

{

    public partial class Form1 : Form

    {

        WaveIn waveIn;

        WaveFileWriter writer;

        string recordFile = "";

        int numberRecords = 0;

        public Form1()

        {

            InitializeComponent();

            KeyPreview = true;

            KeyDown += Form1_KeyDown;

        }

 

        private void Form1_KeyDown(object sender, KeyEventArgs e)

        {

            if (e.Control && e.KeyCode == Keys.D1)

            {

                StartRecording();

            }

            else if (e.Control && e.KeyCode == Keys.D2)

            {

                if (waveIn != null)

                {

                    StopRecording();

                }

            }

        }

 

        void waveIn_DataAvailable(object sender, WaveInEventArgs e)

        {

            if (this.InvokeRequired)

            {

                this.BeginInvoke(new EventHandler<WaveInEventArgs>(waveIn_DataAvailable), sender, e);

            }

            else

            {

                writer.WriteData(e.Buffer, 0, e.BytesRecorded);

            }

        }

 

        void StartRecording()

        {

            try

            {

                waveIn = new WaveIn();

                waveIn.DeviceNumber = 0;

                waveIn.DataAvailable += waveIn_DataAvailable;

                waveIn.RecordingStopped += new EventHandler(waveIn_RecordingStopped);

                waveIn.WaveFormat = new WaveFormat(8000, 1);

                recordFile = numberRecords + ".wav";

                writer = new WaveFileWriter(recordFile);

                waveIn.StartRecording();

            }

            catch (Exception ex)

            {

                MessageBox.Show(ex.Message);

            }

 

            void StopRecording()

            {

                waveIn.StopRecording();

                numberRecords += 1;

            }

 

            void waveIn_RecordingStopped(object sender, EventArgs e)

            {

                if (this.InvokeRequired)

                {

                    this.BeginInvoke(new EventHandler(waveIn_RecordingStopped), sender, e);

                }

                else

                {

                    waveIn.Dispose();

                    waveIn = null;

                    writer.Close();

                    writer = null;

                }

            }

 

            void menuNew_Click(object sender, EventArgs e)

            {

                richTextBox1.Clear();

                numberRecords = 0;

            }

 

            void menuExit_Click(object sender, EventArgs e)

            {

                Application.Exit();

            }

 

            void menuOpen_Click(object sender, EventArgs e)

            {

                if (openFileDialog1.ShowDialog() == DialogResult.OK && openFileDialog1.FileName.Length > 0)

                {

                    richTextBox1.LoadFile(openFileDialog1.FileName, RichTextBoxStreamType.PlainText);

                    numberRecords = 0;

                }

            }

 

            void menuSave_Click(object sender, EventArgs e)

            {

                if (saveFileDialog1.ShowDialog() == DialogResult.OK)

                {

                    richTextBox1.SaveFile(saveFileDialog1.FileName, RichTextBoxStreamType.PlainText);

                }

            }

        }

    }

}

You did not close the method StartRecording() with a }. Therefore all following methods are local to StartRecording and not visible outside.

void StartRecording()

{

    try

    {

        waveIn = new WaveIn();

        waveIn.DeviceNumber = 0;

        waveIn.DataAvailable += waveIn_DataAvailable;

        waveIn.RecordingStopped += new EventHandler(waveIn_RecordingStopped);

        waveIn.WaveFormat = new WaveFormat(8000, 1);

        recordFile = numberRecords + ".wav";

        writer = new WaveFileWriter(recordFile);

        waveIn.StartRecording();

    }

    catch (Exception ex)

    {

        MessageBox.Show(ex.Message);

    }

 } // <<<-- this was missing



 void StopRecording()

 {

    waveIn.StopRecording();

    numberRecords += 1;

 }