How to check whether a file contains an extension in a folder in C#?

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C#

How to check whether a file contains an extension in a folder in c#?

I am having folder with file extension FTS and FTS.SHA. I need to check whether a FTS file contains .FTS.SHA file also.
I mean if there x.FTS file then it should have x.FTS.SHA file too.

I can fetch the files as below. But how to do the above validation criteria.

C#

string[] fileList = Directory.GetFiles(COMMON.FPPath, SearchFilePattern)
                               .Select(f => f.ToUpperInvariant())
              //.Where(f => f.StartsWith("ec") || f.StartsWith("es"))
                               .ToArray();

What I have tried:

C#

string[] fileList = Directory.GetFiles(COMMON.FPPath, SearchFilePattern)
                               .Select(f => f.ToUpperInvariant())
              //.Where(f => f.StartsWith("ec") || f.StartsWith("es"))
                               .ToArray();

Posted 6-Apr-16 22:56pm

ranio

Updated 6-Apr-16 23:33pm

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Beginner Luck · Answer 1 · 2016-04-06T23:10:00

Solution 1

C#

if (Directory.GetFiles(dirPath, "*.*").Length == 0)
{
    //NO matching *.wma files
}
else
{
    //has matching *.wma files
}

Posted 6-Apr-16 23:10pm

Beginner Luck

VR Karthikeyan · Answer 2 · 2016-04-06T23:33:00

Hi, Refer this code,

C#

public void CheckFiles()
{
    string FolderPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "\\FileCheck";

    string[] FileArray = Directory.GetFiles(FolderPath);
    foreach (string stringFile in FileArray)
    {
        FileInfo objFile = new FileInfo(stringFile);
        if (objFile.Extension == ".FTS")
        {
            string SHAFileName = objFile.Name + ".SHA";
            int FTSSHAFilesCount = FileArray.Count(FTSSHAFile => FTSSHAFile.Contains(SHAFileName));
            if (FTSSHAFilesCount > 0)
            {
                Console.WriteLine("----------------MATCH FOUND----------------");
                Console.WriteLine(objFile);
                Console.WriteLine(SHAFileName);
                Console.WriteLine("-------------------------------------------");
            }
            else
            {
                Console.WriteLine("----------------MATCH NOT FOUND----------------");
                Console.WriteLine(objFile);
            }
        }
    }
}

It is working for me, I have tested with a desktop folder FileCheck with files like, abc.FTS, abc.FTS.SHA, abd.FTS, abd.FTS.SHA, xyz.FTS.