将文件保存到我的文档+ app文件夹

问题描述

我想挽救我的.NET应用程序的设置文件到用户的％myDocument中％\\ MyApplication的文件夹，但我不知道如何检查现有文件夹\\文件，以及创建或追加在保存文件夹\\文件。我不想打开saveFileDialog，因为我需要的文件是在所有用户计算机上的相同位置。这是我有这么远，但它不工作。任何帮助将是AP preciated：

  VAR saveSettings = settingsList.text; //设置分配给一个变​​量
saveSettings = Regex.Replace（saveSettings，@\\ S +，）.Trim（）+ Environment.NewLine; //删除任何多余的空格，并添加一个回车，使每个设置是一个新行变种文件名=的String.Format（{0} \\\\ {1}，Environment.SpecialFolder.MyDocuments +\\\\ \\\\的MyApp，settings.dat）; //生成路径settings.dat
File.AppendAllText（文件名，saveSettings）; //保存settings.dat
 

解决方案

 路径字符串= System.IO.Path.Combine（Environment.GetFolderPath（
    Environment.SpecialFolder.MyDoc uments），MyApp的，settings.dat）;如果（Directory.Exists（路径））
{
    //存在
}
其他
{
    //需要创建
}
 

I am trying to save my .NET application settings file to the user's %MyDocument%\MyApplication folder, but I don't know how to check for an existing folder\file, and create or append the folder\file on save. I don't want to open a saveFileDialog because I need the file to be in the same place on all user computers. This is what I have so far, but it isn't working. Any help would be appreciated:

var saveSettings = settingsList.text;  //assign settings to a variable
saveSettings = Regex.Replace(saveSettings, @"\s+", "").Trim() + Environment.NewLine; //remove any extra spaces and add a carriage return so that each setting is on a new line

var fileName = string.Format("{0}\\{1}", Environment.SpecialFolder.MyDocuments + "\\MyApp\\", "settings.dat");  //generate path to settings.dat
File.AppendAllText(fileName, saveSettings);  //save settings.dat

解决方案

string path = System.IO.Path.Combine(Environment.GetFolderPath(
    Environment.SpecialFolder.MyDoc‌​uments),"MyApp","settings.dat");

if(Directory.Exists(path))
{
    //Exists
}
else
{
    //Needs to be created
}

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