private void compile_button_Click(object sender, EventArgs e)
        {
            var fbd = new FolderBrowserDialog();

            if (fbd.ShowDialog() == DialogResult.OK && !string.IsNullOrWhiteSpace(fbd.SelectedPath))
            {
                path = fbd.SelectedPath;

                if (selectedCode == "C#")
                {
                    if (compiler.CompileCSharpFromSource(cSharpStr, path + "output.exe"))
                    {
                        MessageBox.Show("Compiled Successfully!");
                    }
                }
            }
        }