Button_Click

private void button1_Click(object sender, EventArgs e)
        {
            if (Directory.Exists("D:\\" +textBox1.Text))
            {


                string[] listOfFiles = Directory.GetFiles("D:\\" + textBox1.Text);
                string files = "";

                for (int i = 0; i < listOfFiles.Length; i++)
                {


                    files += listOfFiles[i];
                    files += ";";




                }

                MessageBox.Show(files);


            }

            else {


                MessageBox.Show("The directory does not exist.");

            }