过去,一些应用程序在当前的安全状态下,在不建议的地方读写ini配置文件,微软的windows操作系统(os)非常高兴。在 Windows 7、8 和 10 中,操作系统保护这些文件夹,将新版本存储在用户配置文件 VirtualStore 下。
下面的 C# 和 VB.net 代码检查文件是否存在于 VirtualStore 路径中(即“C:\Users\\AppData\Local\VirtualStore\Program Files (x86)\Example App”)以及它是否不存在,在原来的地方检查(“C:\Program Files (x86)\Example App”)。CheckFile() 将返回文件的完整文件路径。
FullFilePath = CheckFile("C:\Program Files (x86)\Example App", "data.ini"));
它也适用于您的遗留代码可能会尝试弄乱的其他文件夹(如“C:\Windows”)。
下面是 C# 代码:
public void Main()
{
string Path = "";
string File = "data.ini";
string FullFilePath = "";
// we can get
Path = System.Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
//Path = "C:\Program Files (x86)\Example App"
FullFilePath = CheckFile(Path, File);
Interaction.MsgBox("FullFilePath: " + FullFilePath, MsgBoxStyle.Information + MsgBoxStyle.OkOnly, "Example Debug");
}
/// <summary>
/// CheckFile() - Check the String with Path and Filename. Make sure path is padded to the right with a \
/// </summary>
/// <param name="FilePath">Path of the file</param>
/// <param name="FileName">File name</param>
/// <returns>String with Path and Filename</returns>
/// <remarks>
/// Support the file search in user VirtualStore first and original path later.
/// </remarks>
public string CheckFile(string FilePath, string FileName)
{
string OriginalPath = "";
string VirtualStorePath = "";
// Make sure path is padded to the right with a \
if (FilePath.EndsWith("\\")) {
OriginalPath = FilePath;
} else {
OriginalPath = FilePath + "\\";
}
VirtualStorePath = System.Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) + "\\VirtualStore\\" + OriginalPath.Substring(3);
//MsgBox("VirtualStorePath: " & VirtualStorePath & vbNewLine & "OriginalPath: " & OriginalPath,
// MsgBoxStyle.Information + MsgBoxStyle.OkOnly, "AIMS Debug")
// return first VirtualStorePath if the file exists in user VirtualStore
if (IO.File.Exists(VirtualStorePath + FileName)) {
FilePath = VirtualStorePath;
return VirtualStorePath + FileName;
}
if (IO.File.Exists(OriginalPath + FileName)) {
return OriginalPath + FileName;
} else {
Interaction.MsgBox("No file in CheckFile(FilePath: " + FilePath + Constants.vbNewLine + "FileName: " + FileName + ")", MsgBoxStyle.Information + MsgBoxStyle.OkOnly, "Example Debug");
// we don't have this file
return OriginalPath + FileName;
}
}
下面是 VB.net 代码:
Sub Main()
Dim Path As String = ""
Dim File As String = "data.ini"
Dim FullFilePath As String = ""
' we can get
Path = System.Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData)
'Path = "C:\Program Files (x86)\Example App"
FullFilePath = CheckFile(Path, File)
MsgBox("FullFilePath: " & FullFilePath, MsgBoxStyle.Information + MsgBoxStyle.OkOnly, "Example Debug")
End Sub
''' <summary>
''' CheckFile() - Check the String with Path and Filename. Make sure path is padded to the right with a \
''' </summary>
''' <param name="FilePath">Path of the file</param>
''' <param name="FileName">File name</param>
''' <returns>String with Path and Filename</returns>
''' <remarks>
''' Support the file search in user VirtualStore first and original path later.
''' </remarks>
Function CheckFile(ByVal FilePath As String, ByVal FileName As String) As String
Dim OriginalPath As String = ""
Dim VirtualStorePath As String = ""
' Make sure path is padded to the right with a \
If FilePath.EndsWith("\") Then
OriginalPath = FilePath
Else
OriginalPath = FilePath & "\"
End If
VirtualStorePath = System.Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) & "\VirtualStore\" & OriginalPath.Substring(3)
'MsgBox("VirtualStorePath: " & VirtualStorePath & vbNewLine & "OriginalPath: " & OriginalPath,
' MsgBoxStyle.Information + MsgBoxStyle.OkOnly, "AIMS Debug")
' return first VirtualStorePath if the file exists in user VirtualStore
If IO.File.Exists(VirtualStorePath & FileName) Then
FilePath = VirtualStorePath
Return VirtualStorePath & FileName
End If
If IO.File.Exists(OriginalPath & FileName) Then
Return OriginalPath & FileName
Else
MsgBox("No file in CheckFile(FilePath: " & FilePath & vbNewLine & "FileName: " & FileName & ")",
MsgBoxStyle.Information + MsgBoxStyle.OkOnly, "Example Debug")
' we don't have this file
Return OriginalPath & FileName
End If
End Function