void btnOK_Click(object sender, EventArgs e)
{
if (txtShortName.Text == string.Empty || txtLongName.Text == string.Empty)
{
Tools.UserInfoHandler.ShowError("Please indicate a short name and a long name for the add-on.");
return;
}
if (CountryAdministrator.DoesCountryExist(txtShortName.Text))
{
Tools.UserInfoHandler.ShowError("Add-on named '" + txtShortName.Text + "' already exists.");
return;
}
if (txtSymbol.Text != string.Empty && !CountryAdministrator.IsValidFlagFilePath(txtSymbol.Text))
{
return;
}
if (lstAddOnSystems.CheckedItems.Count == 0 || lstBaseSystems.CheckedItems.Count == 0)
{
Tools.UserInfoHandler.ShowError("Please select an add-on system and a base system.");
return;
}
_addOnSystemName = lstAddOnSystems.SelectedItem.ToString();
_baseSystemName = lstBaseSystems.SelectedItem.ToString();
if (_addOnSystemName == _baseSystemName)
{
Tools.UserInfoHandler.ShowError("Add-on system must be different from base system.");
return;
}
DialogResult = DialogResult.OK;
Close();
}