Check if file name exists

Question

I'm using this powershell code to check if a file starting with 4 specific chars exist in a specific path or not

$myPath = "c:\myFolder\";
$myFileBegin = "abc_";
test-path "$myPath$myFileBegin*";

It works and it's simple, but now I'm trying to do the same thing with C#.
I don't report all the code but basically I'm getting all files from the folder with Directory.GetFiles and looping over those files and testing with Regex.IsMatch .
Is this the correct way or is there a faster one like in powershell?

Answer 1

You can specify a search filter in the call to Directory.GetFiles() :

Directory.GetFiles(@"c:\myFolder\", "abc_*.*");

This will return only files that start with abc_ .

Answer 2

尝试这个

Directory.GetFiles(@"c:\myFolder\").Where(x => x.StartsWith("abc_"));

Answer 3

with .net 4 and above:

Directory.EnumerateFiles(@"c:\myFolder", "abc_*.*")).Any()  ? true : false 

this return (bool) true or false belong the case