程式 . 生活 . D小調

using System.IO.IsolatedStorage;
using System.IO;

private void btnSave_Click(object sender, System.Windows.RoutedEventArgs e)
{

    IsolatedStorageFile storageFiles = IsolatedStorageFile.GetUserStoreForApplication();
    

    //如果判斷已經有檔案就把它砍掉
    if (storageFiles.FileExists("UserInfo\\data.txt"))
    {
        storageFiles.DeleteFile("UserInfo\\data.txt");
    }

    //建立檔案夾
    storageFiles.CreateDirectory("UserInfo");

    StreamWriter fileWriter = new StreamWriter(new IsolatedStorageFileStream("UserInfo\\data.txt", FileMode.OpenOrCreate, storageFiles));

    //寫入至目標
    fileWriter.Write(this.txtMain.Text);

    fileWriter.Close();

    storageFiles.Dispose();

    MessageBox.Show("儲存完畢");

}

private void btnRead_Click(object sender, System.Windows.RoutedEventArgs e)
{
    this.txtMain.Text = "";

    IsolatedStorageFile storageFiles = IsolatedStorageFile.GetUserStoreForApplication();

    StreamReader fileReader = null;

    //判斷檔案是否存在
    if (storageFiles.FileExists("UserInfo\\data.txt"))
    {
        try
        {
            fileReader = new StreamReader(new IsolatedStorageFileStream("UserInfo\\data.txt", FileMode.Open, storageFiles));
            txtMain.Text = fileReader.ReadToEnd();
            fileReader.Close();
        }
        catch
        {

            MessageBox.Show("讀取檔案發生問題!!");
        }
    }
    else
    {
        MessageBox.Show("找尋不到已存在檔案!!");
    }
}
    }