Is Interface implementation Correct

Navneet Hegde

Dear All, To know the IEnumerable Interface I have done one demo Aplication please let me know whether there is anything wrong in my approach.

class MyFile : FileSystemInfo
{
private FileInfo _strFile;
public MyFile(FileInfo strFile)
{
_strFile = strFile;
}

    public override void Delete()
    {
        \_strFile.Delete(); 
    }

    public override bool Exists
    {
        get 
        {
            if (\_strFile.Exists)
            {
                return true;
            }
            else
            {
                return false;
            }
        
        }
    }

    public override string Name
    {
        get { return \_strFile.Name;}
    }
}

class MyFiles : IEnumerable<MyFile>
{
private string _directoryPath;
private string _fileExtension = "xml";

    public MyFiles(string directoryPath)
    {
        \_directoryPath = directoryPath;
    }

    public string FileExtension
    {
        get { return \_fileExtension; }
        set { \_fileExtension = value; }
    }

    #region IEnumerable<MyFile> Members

    public IEnumerator<MyFile> GetEnumerator()
    {
        DirectoryInfo di = new DirectoryInfo(\_directoryPath);
        FileInfo\[\] rgFiles = di.GetFiles("\*." + \_fileExtension);
        foreach (FileInfo fi in rgFiles)
        {
            MyFile ss = new MyFile(fi);
            yield return ss;
        }
    }

    #endregion

    #region IEnumerable Members

    IEnumerator IEnumerable.GetEnumerator()
    {
        DirectoryInfo di = new DirectoryInfo(\_directoryPath);
        FileInfo\[\] rgFiles = di.GetFiles("\*." + \_fileExtension);
        foreach (FileInfo fi in rgFiles)
        {
            MyFile ss = new MyFile(fi);
            yield return ss;
        }  
    }

    #endregion

}

Here is it's implementation :

 static void Main()
    {
        MyFiles myFS = new MyFiles(@"D:\\TestInterface");
        foreach(MyFile FS in MyFiles)
        {
            Console.WriteLine(FS.Name);
            Console.ReadLine(); 
        }
        
    }

Here I am trying to Iterate the Files in Certa

leppie

Navneet Hegde wrote:

IEnumerator IEnumerable.GetEnumerator()

You dont really need to provide an implementation for that too. Simply return the generic IEnumerable, ie: return GetEnumerator(); Everything else looks fine :)

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