public ProjectBuilder AddProperty(params Property[] properties) { if (properties == null || properties.Length == 0) { // if call .AddProperty() but not specifying a property just return; return(this); } // If no property group is created then create it automatically. if (_lastPropertyGroupElement == null) { AddPropertyGroup(); } _lastPropertyElements.Clear(); foreach (var property in properties) { ProjectPropertyElement projectProperty = ProjectRoot.CreatePropertyElement(property.Name); projectProperty.Value = property.Value; projectProperty.Label = property.Label; projectProperty.Condition = property.Condition; _lastPropertyGroupElement.AppendChild(projectProperty); _lastPropertyElements.Add(projectProperty); } return(this); }