C# see if directory file exists

13y1.8kVisual Basic .NET

In a C# 2008 desktop application, I want to be able to check for a directory folder existing in a specified location. The directory path will look like C:\\main_folder\mm_yyyy. The mm_yyyy stands for the month and year.
Thus can you should be code on how to check if a folder actually exists?

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes13y ago
Accepted answer
If you're not sure what the precise name of the sub-directory is but you want it to be of the form 'mm_yyyy', then try this code:

string[] folders = Directory.GetDirectories(@"c:\main_folder");
List list = new List();
foreach(string folder in folders)
{
string dirName = Path.GetFileName(folder);
DateTime dt;
if(DateTime.TryParseExact("01_" + dirName, "dd_MM_yyyy", null, 0, out dt))
{
list.Add(folder);
}
}

if (list.Count > 0)
{
Console.WriteLine("A sub-directory of the form mm_yyyy exists");
}
else
{
Console.WriteLine("A sub-directory of the form mm_yyyy does not exist");
}
Hemant Srivastava13y ago
you may try this:

if (!Directory.Exists(@"C:\main_folder\mm_yyyy"))
{
Directory.CreateDirectory(@"C:\main_folder\mm_yyyy");
}