private void Button2_Click(object sender, EventArgs e) { if (string.IsNullOrWhiteSpace(textBox1.Text)) { MessageBox.Show("The folder is not selected.", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error); return; } Directory.CreateDirectory(textBox1.Text); LanguageFile languageFile = new LanguageFile(); languageFile.LanguageFileDictionary.CultureString = comboBox1.Text; languageFile.SaveFile( new FileInfo(textBox1.Text + "/" + comboBox1.Text + ".json")); Close(); }