CODEWITHSUNDEEP
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jinsungy
jinsungy

Reputation: 10835

Exclude a file extension in System.IO.Directory.GetFiles()

Is there a way to get a file count in a folder, but I want to exclude files with extension jpg?

Directory.GetFiles("c:\\Temp\\").Count();

Upvotes: 10

Views: 13556

Answers (9)

acermate433s
acermate433s

Reputation: 2544

string[] extensions = new string[] { ".jpg", ".gif" };

var files = from file in Directory.GetFiles(@"C:\TEMP\")
            where extensions.Contains((new FileInfo(file)).Extension)
            select file;

files.Count();

Upvotes: 1

Justin Morgan
Justin Morgan

Reputation: 30705

You can always use LINQ.

return GetFiles("c:\\Temp\\").Where(str => !str.EndsWith(".exe")).Count();

Upvotes: 0

Homam
Homam

Reputation: 23841

Try this:

var count = System.IO.Directory.GetFiles(@"c:\\Temp\\")
                               .Count(p => Path.GetExtension(p) != ".jpg");

Good luck!

Upvotes: 14

Scott
Scott

Reputation: 13921

System.IO.Directory.GetFiles("c:\\Temp\\").Where(f => !f.EndsWith(".jpg")).Count();

Upvotes: 0

Steve Danner
Steve Danner

Reputation: 22148

You could just use a simple LINQ statement to weed out the JPGs.

Directory.GetFiles("C:\\temp\\").Where(f => !f.ToLower().EndsWith(".jpg")).Count();

Upvotes: 1

decyclone
decyclone

Reputation: 30820

You can use LINQ 'Where' clause to filter out files with not needed extension.

Upvotes: 0

dalexsoto
dalexsoto

Reputation: 3412

public static string[] MultipleFileFilter(ref string dir)
{
    //determine our valid file extensions
    string validExtensions = "*.jpg,*.jpeg,*.gif,*.png";

    //create a string array of our filters by plitting the
    //string of valid filters on the delimiter
    string[] extFilter = validExtensions.Split(new char[] { ',' });

    //ArrayList to hold the files with the certain extensions
    ArrayList files = new ArrayList();

    //DirectoryInfo instance to be used to get the files
    DirectoryInfo dirInfo = new DirectoryInfo(dir);

    //loop through each extension in the filter
    foreach (string extension in extFilter)
    {
        //add all the files that match our valid extensions
        //by using AddRange of the ArrayList
        files.AddRange(dirInfo.GetFiles(extension));
    }

    //convert the ArrayList to a string array
    //of file names
    return (string[])files.ToArray(typeof(string));
}

Should work

Alex

Upvotes: 1

nan
nan

Reputation: 20296

Using Linq's Where method:

Directory.GetFiles(path).Where(file => !file.EndsWith(".jpg")).Count();

Upvotes: 5

Mark Avenius
Mark Avenius

Reputation: 13947

You can use a DirectoryInfo object on the directory, and do a GetFiles() on it with a filter.

Upvotes: 6

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