C#修改文件或文件夹的权限,为指定用户、用户组添加完全控制权限
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//给Excel文件添加"Everyone,Users"用户组的完全控制权限
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FileInfo fi = new FileInfo(excelPath);
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System.Security.AccessControl.FileSecurity fileSecurity = fi.GetAccessControl();
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fileSecurity.AddAccessRule(new FileSystemAccessRule("Everyone", FileSystemRights.FullControl, AccessControlType.Allow));
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fileSecurity.AddAccessRule(new FileSystemAccessRule("Users", FileSystemRights.FullControl, AccessControlType.Allow));
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fi.SetAccessControl(fileSecurity);
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//给Excel文件所在目录添加"Everyone,Users"用户组的完全控制权限
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DirectoryInfo di = new DirectoryInfo(Path.GetDirectoryName(excelPath));
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System.Security.AccessControl.DirectorySecurity dirSecurity = di.GetAccessControl();
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dirSecurity.AddAccessRule(new FileSystemAccessRule("Everyone", FileSystemRights.FullControl, AccessControlType.Allow));
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dirSecurity.AddAccessRule(new FileSystemAccessRule("Users", FileSystemRights.FullControl, AccessControlType.Allow));
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di.SetAccessControl(dirSecurity);