private static bool ValidateListenerFields(string key1, string value1, string key2, string value2)
{
bool value1isValid = !String.IsNullOrEmpty(value1.Trim());
bool value2isValid = !String.IsNullOrEmpty(value2.Trim());
string invalidKey;
if (value1isValid && value2isValid) {
return true;
} else if (value1isValid || value2isValid) {
// Display invalid listener field alert
invalidKey = value1isValid ? key2 : key1;
DisplayInvalidSettingsWarning(invalidKey, "Listener will not be set.");
}
return false;
}