private void button_Rename_Click(object sender, EventArgs e)
{
if (!ConfigFile.ConfigNames().Contains(textBox_ConfigName.Text) && textBox_ConfigName.Text != Oldname)
{
Choosen_Name = textBox_ConfigName.Text;
DialogResult = DialogResult.OK;
}
else
{
MessageBox.Show("Config name already in use.");
}
}
