Copy files from one directory to another

Step 1. Add following namespace

using System.IO;

Step 2. Use this code

public void readfiles()
    string[] filePaths = Directory.GetFiles("Your Path");
    foreach (var filename in filePaths)
        string file = filename.ToString();
        //Do your job with "file"

        string str = "Your Destination"+file.ToString(),Replace("Your Path");
        if (!File.Exists(str))
            File.Copy(file , str);
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