How Do I filter out names of folders in C#?

Question

I have the code searching through the directory and picks out all the folders, but I only want it to pick out ones that Start with Data. How would I do that?

Below is the code I have that goes through the Directory:

    string[] filePaths = Directory.GetDirectories(defaultPath).Where(Data => !Data.EndsWith(".")).ToArray();

Answer 1

No need to use LINQ; GetDirectories supports search patterns, and will probably be significantly faster since the filtering may be done by the filesystem, before enumerating the results in .NET.

string[] filePaths = Directory.GetDirectories(defaultPath, "Data*");

Note that * is a wildcard which matches zero or more characters.

Answer 2

If "starts with data" you just mean the folder name begins with "Data", this will work

string[] filePaths = Directory.GetDirectories(defaultPath)
    .Where(s => s.StartsWith("Data") && !s.EndsWith(".")).ToArray();