Guideline: Java primitive and wrapper classes map to slightly different XML schema representations. Therefore, .NET bindings will vary accordingly.
Example: A Java primitive type and its corresponding wrapper class
//-- Java code fragment public class StockItem{ public Double wholeSalePrice; public double retailPrice; } //--Schema fragment <xs:complexType name="stockItem"> <xs:sequence> <xs:element name="wholeSalePrice" type="xs:double" minOccurs="0"/> <xs:element name="retailPrice" type="xs:double"/> </xs:sequence> </xs:complexType> //-- .NET C# auto generated code from schema public partial class stockItem { private double wholeSalePrice; private bool wholeSalePriceFieldSpecified; private double retailPrice; public double wholeSalePrice { get{ return this.wholeSalePrice;} set{this.wholeSalePrice=value} } public bool wholeSalePriceSpecified { get{ return this.wholeSalePriceFieldSpecified;} set{this.wholeSalePriceFieldSpecified=value} } public double retailPrice { get{ return this.retailPrice;} set{this.retailPrice=value} } } //-- C# code fragment stockItem s = new stockItem(); s.wholeSalePrice = Double.parse("198.92"); s.wholeSalePriceSpecified = true; s.retailPrice = Double.parse("300.25");