klocwork Error: No permission set for resource 'streamWriter' before accessing it

klocwork Error: No permission set for resource 'streamWriter' before accessing it

在这篇文章的帮助下,

https://support.roguewave.com/documentation/klocwork/en/10-x/cs.nps/

即使在明确设置安全性之后,我仍然收到 klocwork 错误。解决它的任何解决方案。

以下代码行出错,

streamWriter.WriteLine("Hello");

这是完整的代码,

using (var stream = new FileStream(@"C:\sample.txt", FileMode.Create))
        {
            var security = new System.Security.AccessControl.FileSecurity();
            security.AddAccessRule(new FileSystemAccessRule(@"domain\user", FileSystemRights.Modify, AccessControlType.Allow));
            stream.SetAccessControl(security);

            using (var streamWriter = new StreamWriter(stream))
            {
                streamWriter.WriteLine("Hello");
            }
        }

我知道现在回答可能为时已晚。 但是在多次尝试之后,这就是我如何避免出现这个 CS.NPS klocwork 错误,尽管代码看起来效率不高。 尝试使用 SetAccessControl 也不满意 klocwork 错误。

所以,不用streamWriter写,直接用File.AppendAllText(string path, string content)

示例:

string Textwritefile = "D:\Working\WriteFile.txt";
string content = "This is testing....";

// Error Code :
using (FileStream fs = new FileStream(Textwritefile , FileMode.Append, FileAccess.Write))
{
     fs.SetAccessControl(new FileSecurity(writefilename, AccessControlSections.Access)); 
      using (StreamWriter sw = new StreamWriter(fs))
      {
          sw.WriteLine(content);  //CS.NPS error comes from this line.
      }
}

// Fixed code : 
File.AppendAllText(Textwritefile , content);

但是如果你碰巧在几分之一秒内写入同一个文件(即多次调用 File.AppendAllText(Textwritefile , content) 方法),你可能必须添加锁以避免获取错误:"The process cannot access the file because it is being used by another process"。