WPF & C# - 간단한 메모장 Memo ( OpenFileDialog / SaveFileDialog / StreamReader / StreamWriter / NotePad / 노트패드 )

 

 

 

WPF & C# - 간단한 메모장 Memo ( OpenFileDialog / SaveFileDialog / StreamReader / StreamWriter / NotePad / 노트패드 )

 

testSaveFileDialog.zip

0.06MB

Memo.exe

0.01MB

 

 

 

 

 

MainWindow.xaml

 

<Window x:Class="testSaveFileDialog.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:testSaveFileDialog"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="80"/>
                <RowDefinition Height="*"/>
                <RowDefinition Height="80"/>
            </Grid.RowDefinitions>
            <Button Grid.Row="0" x:Name="btnOpen" Margin="5" Content="Open" Click="Open"></Button>
            <TextBox Grid.Row="1" x:Name="txt" Margin="5" AcceptsReturn="True" TextWrapping="Wrap" VerticalScrollBarVisibility="Auto"></TextBox>
            <Button Grid.Row="2" x:Name="btnSave" Margin="5" Content="Save" Click="Save"></Button>
        </Grid>
        </Grid>
</Window>

 

 

MainWindow.xaml.cs

 

public MainWindow()
        {
            InitializeComponent();
            this.Title = "간단한 메모장";
        }

        string file = "";

        private async void Save(object sender, RoutedEventArgs e)
        {
            await SaveFile("Memo", txt.Text);
        }

        private async void Open(object sender, RoutedEventArgs e)
        {
            OpenFileDialog openFileDialog = new OpenFileDialog { Filter = "텍스트 파일 (*.txt;*.log)|*.txt;*.log" };

            if (openFileDialog.ShowDialog() == true)
            {
                string filePath = openFileDialog.FileName;
                try
                {
                    txt.Text = await ReadFileAsync(filePath, TimeSpan.FromSeconds(0.5));
                }
                catch (IOException ex)
                {
                    MessageBox.Show($"파일을 열 수 없습니다: {ex.Message}", "오류", MessageBoxButton.OK, MessageBoxImage.Error);
                }
            }
        }



        private async Task<string> ReadFileAsync(string filePath, TimeSpan timeout)
        {
            // 액세스 불가능한 파일은 FileAccess.Read 으로 오픈
            using (FileStream stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
            {
                using (StreamReader reader = new StreamReader(stream))
                {
                    Task<string> readTask = reader.ReadToEndAsync();
                    Task completedTask = await Task.WhenAny(readTask, Task.Delay(timeout));

                    if (completedTask == readTask)
                    {
                        return await readTask;
                    }
                    else
                    {
                        throw new TimeoutException($"File read operation timed out after {timeout.TotalSeconds} milliseconds.");
                    }
                }
            }
        }

        private async Task SaveFile(string defaultFileName, string content)
        {
            SaveFileDialog saveFileDialog = new SaveFileDialog
            {
                FileName = defaultFileName,
                Filter = "텍스트 파일 (*.txt)|*.txt"
            };

            if (saveFileDialog.ShowDialog() == true)
            {
                string filePath = saveFileDialog.FileName;
                try
                {
                    using (StreamWriter writer = new StreamWriter(filePath))
                    {
                        await writer.WriteAsync(content);
                    }
                }
                catch (IOException ex)
                {
                    MessageBox.Show($"파일을 저장하는 중 오류가 발생했습니다: {ex.Message}", "오류", MessageBoxButton.OK, MessageBoxImage.Error);
                }
            }
        }