WPF/C# - Scanning a Directory for Files?

string[] A = Directory.GetFiles(textBox1.Text, "*.txt", SearchOption.AllDirectories);
for (int i = 0; i < A.Length; i++)
listBox2.Items.Add(A[i]);

that my friend would be the code for the get all files ;)
it will give you all directories included in the folder!
explanation for:
Directory.GetFiles(textBox1.Text, "*.txt", SearchOption.AllDirectories);
Directory.GetFiles(Directory, file extension to look for, SearchOption);

Brilliant! Thanks for your help John.

There is another method, by using recursive loop..

the different is, using

DirectoryInfo.GetFiles()

method, it will search all files in the particular directory then store in an array..then we will loop the array and scan/do function on each item in the array...

the purpose i'm doing the coding manually (recursive loop) is because everytime i encounter a file, i will scan/do some function on it...then store it in the array...

here's my coding..

declare array mypath to store choosen path to be scan for files

private string[] mypath;

store all choosen path in the array

mypath = File.ReadAllLines("scanpath.scn");

this will call the function to search all files in the directory and subdirectory

searchFile();

the function searchFile, loop root directory that i choose in scanpath file just now.

private void searchFile()
        {
            for (int i = 0; i < mypath.Length ; i++)
            {
                DirectoryInfo myRoot = new DirectoryInfo(mypath[i]);
                string[] myDir = Directory.GetDirectories(mypath[i]);

                showFile(myRoot);
                recursiveLoop(myDir);

            }
        }

the function showFile, show/add the list of files in the directory into a listview

private void showFile(DirectoryInfo myDir)
        {
            string myPath = "";
            string myPath2 = "";

            foreach (FileInfo file in myDir.GetFiles())
            {
                myPath = file.ToString();
                myPath2 = myDir + "\\" + myPath;

                lstScan.Items.Add(myPath2);
                string result = doFunction(myPath2);
                if (!result.Equals(string.Empty))
                {
                    addIntoListView(myPath, result);
                }
            }
        }

the function recursiveLoop, which will loop and search files in each subdirectory in the directory..and also subdirectory in the subdirectory..untill all files in the root directory and all its subdirectory'subdirectory and so on..

private void recursiveLoop(string[] subdir)
        {
            foreach (string s in subdir)
            {
                try
                {

                    DirectoryInfo mySub = new DirectoryInfo(s);
                    string myPath = "";
                    string myPath2 = "";

                    foreach (FileInfo file in mySub.GetFiles())
                    {
                        myPath = file.ToString();
                        myPath2 = mySub + "\\" + myPath;

                        lstScan.Items.Add(myPath2);
                        string result = doFunction(myPath2);
                        if (!result.Equals(string.Empty))
                        {
                            addIntoListView(myPath, result);
                        }
                    }

                    string[] myDir = Directory.GetDirectories(s);
                    recursiveLoop(myDir);
                }
                catch (Exception c)
                {
                    //    Console.WriteLine("Error: " + c.Message);
                }
            }
        }