public virtual String GetVendorSetting(String settingKey, String defaultValue = null)
{
if (VendorSettings == null)
{
throw new InvalidOperationException("Vendor settings are not included");
}
return(VendorSettings
.Where(vendorSetting => vendorSetting.SettingKey.Equals(settingKey, StringComparison.OrdinalIgnoreCase))
.Select(vendorSetting => vendorSetting.Value)
.SingleOrDefault() ?? defaultValue);
}
