Simplification in writing ZUGFeRD 2.2 files

Additional comment from
#263

Author: stephanstapel

ZUGFeRD/InvoiceDescriptor22Writer.cs

@@ -828,47 +828,44 @@ public override void Save(InvoiceDescriptor descriptor, Stream stream)
 
             //  13. SpecifiedTradeAllowanceCharge (optional)
             IList<TradeAllowanceCharge> _allowanceCharges = this.Descriptor.GetTradeAllowanceCharges();
-            if (_allowanceCharges?.Count > 0)
+            foreach (TradeAllowanceCharge tradeAllowanceCharge in _allowanceCharges)
             {
-                foreach (TradeAllowanceCharge tradeAllowanceCharge in _allowanceCharges)
-                {
-                    Writer.WriteStartElement("ram:SpecifiedTradeAllowanceCharge");
-                    Writer.WriteStartElement("ram:ChargeIndicator");
-                    Writer.WriteElementString("udt:Indicator", tradeAllowanceCharge.ChargeIndicator ? "true" : "false");
-                    Writer.WriteEndElement(); // !ram:ChargeIndicator
+                Writer.WriteStartElement("ram:SpecifiedTradeAllowanceCharge");
+                Writer.WriteStartElement("ram:ChargeIndicator");
+                Writer.WriteElementString("udt:Indicator", tradeAllowanceCharge.ChargeIndicator ? "true" : "false");
+                Writer.WriteEndElement(); // !ram:ChargeIndicator
 
-                    if (tradeAllowanceCharge.ChargePercentage.HasValue)
-                    {
-                        Writer.WriteStartElement("ram:CalculationPercent", profile: Profile.Extended | Profile.XRechnung1 | Profile.XRechnung);
-                        Writer.WriteValue(_formatDecimal(tradeAllowanceCharge.ChargePercentage.Value));
-                        Writer.WriteEndElement();
-                    }
-
-                    if (tradeAllowanceCharge.BasisAmount.HasValue)
-                    {
-                        Writer.WriteStartElement("ram:BasisAmount", profile: Profile.Comfort | Profile.Extended | Profile.XRechnung1 | Profile.XRechnung);
-                        Writer.WriteValue(_formatDecimal(tradeAllowanceCharge.BasisAmount.Value));
-                        Writer.WriteEndElement();
-                    }
+                if (tradeAllowanceCharge.ChargePercentage.HasValue)
+                {
+                    Writer.WriteStartElement("ram:CalculationPercent", profile: Profile.Extended | Profile.XRechnung1 | Profile.XRechnung);
+                    Writer.WriteValue(_formatDecimal(tradeAllowanceCharge.ChargePercentage.Value));
+                    Writer.WriteEndElement();
+                }
 
-                    Writer.WriteStartElement("ram:ActualAmount");
-                    Writer.WriteValue(_formatDecimal(tradeAllowanceCharge.ActualAmount, 2));
+                if (tradeAllowanceCharge.BasisAmount.HasValue)
+                {
+                    Writer.WriteStartElement("ram:BasisAmount", profile: Profile.Comfort | Profile.Extended | Profile.XRechnung1 | Profile.XRechnung);
+                    Writer.WriteValue(_formatDecimal(tradeAllowanceCharge.BasisAmount.Value));
                     Writer.WriteEndElement();
+                }
 
+                Writer.WriteStartElement("ram:ActualAmount");
+                Writer.WriteValue(_formatDecimal(tradeAllowanceCharge.ActualAmount, 2));
+                Writer.WriteEndElement();
 
-                    Writer.WriteOptionalElementString("ram:Reason", tradeAllowanceCharge.Reason);
 
-                    if (tradeAllowanceCharge.Tax != null)
-                    {
-                        Writer.WriteStartElement("ram:CategoryTradeTax");
-                        Writer.WriteElementString("ram:TypeCode", tradeAllowanceCharge.Tax.TypeCode.EnumToString());
-                        if (tradeAllowanceCharge.Tax.CategoryCode.HasValue)
-                            Writer.WriteElementString("ram:CategoryCode", tradeAllowanceCharge.Tax.CategoryCode?.EnumToString());
-                        Writer.WriteElementString("ram:RateApplicablePercent", _formatDecimal(tradeAllowanceCharge.Tax.Percent));
-                        Writer.WriteEndElement();
-                    }
+                Writer.WriteOptionalElementString("ram:Reason", tradeAllowanceCharge.Reason);
+
+                if (tradeAllowanceCharge.Tax != null)
+                {
+                    Writer.WriteStartElement("ram:CategoryTradeTax");
+                    Writer.WriteElementString("ram:TypeCode", tradeAllowanceCharge.Tax.TypeCode.EnumToString());
+                    if (tradeAllowanceCharge.Tax.CategoryCode.HasValue)
+                        Writer.WriteElementString("ram:CategoryCode", tradeAllowanceCharge.Tax.CategoryCode?.EnumToString());
+                    Writer.WriteElementString("ram:RateApplicablePercent", _formatDecimal(tradeAllowanceCharge.Tax.Percent));
                     Writer.WriteEndElement();
                 }
+                Writer.WriteEndElement();
             }
 
             //  14. SpecifiedLogisticsServiceCharge (optional)