XSD.exe生成类型为Object而不是XSD定义类型的类

Question

我正在进行集成，我从外部API接收数据作为xml文件。我使用XSD.exe从关联的XSD文件生成C＃类。我使用XmlDocument，将其序列化为类定义的相应对象，并可以作为类的属性访问所有元素。但是，该类将每个元素定义为Object类型，而不是XSD中给出的数据类型。这可以防止我访问数据或写入适当的新数据。为什么XSD.exe不使用定义的类型？是否有一些设置我没有注意到XSD.exe？有没有办法将Object中的数据转换为适当的数据类型？

示例Xml：

  <?xml version="1.0" encoding="UTF-8" ?> 
- <xmldata>
- <Orders>
  <OrderID>1</OrderID> 
  <AccountNumber /> 
  <AccountType /> 
  <AddressValidated>Y</AddressValidated> 
  <Affiliate_Commissionable_Value>45.0000</Affiliate_Commissionable_Value> 
  <AuthHash>a3d2f5c2599fc38e5f211ea52abc1040</AuthHash> 
  <BankName /> 
  <BillingAddress1>123 St.</BillingAddress1> 
  <BillingAddress2>United States of America</BillingAddress2> 
  <BillingCity>Metropolis</BillingCity> 
  <BillingCompanyName /> 
  <BillingCountry>United States</BillingCountry> 
  <BillingFaxNumber /> 
  <BillingFirstName>Firsty</BillingFirstName> 
  <BillingLastName>Lasty</BillingLastName> 
  <BillingPhoneNumber>1234567890</BillingPhoneNumber> 
  <BillingPostalCode>12345</BillingPostalCode> 
  <BillingState>US</BillingState> 
`...

示例XSD：

    <?xml version="1.0" encoding="utf-8"?>
<xs:schema id="xmldata" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" xmlns:msprop="urn:schemas-microsoft-com:xml-msprop">
  <xs:element name="xmldata" msdata:IsDataSet="true" msdata:UseCurrentLocale="true">
    <xs:complexType>
      <xs:choice minOccurs="0" maxOccurs="unbounded">
        <xs:element name="Orders">
          <xs:complexType>
            <xs:sequence>
              <xs:element minOccurs="0" msprop:SqlDbType="Int" name="OrderID" msprop:TableNameXsd="Orders" msprop:IsIdentity="true" msprop:SQLTableAlias="o" />
              <xs:element name="AccountNumber" msprop:SqlDbType="VarChar" minOccurs="0" msprop:SQLTableAlias="o" msprop:maxLength="64" />
              <xs:element name="AccountType" msprop:SqlDbType="VarChar" minOccurs="0" msprop:SQLTableAlias="o" msprop:maxLength="10" />
              <xs:element name="AddressValidated" msprop:SqlDbType="VarChar" minOccurs="0" msprop:SQLTableAlias="o" msprop:maxLength="1" />
              <xs:element name="Affiliate_Commissionable_Value" msprop:SqlDbType="Money" minOccurs="0" msprop:SQLTableAlias="o" />
              <xs:element name="AuthHash" msprop:SqlDbType="VarChar" minOccurs="0" msprop:SQLTableAlias="o" msprop:maxLength="40" />
              <xs:element name="AVS" msprop:SqlDbType="VarChar" minOccurs="0" msprop:SQLTableAlias="o" msprop:maxLength="25" />
              <xs:element name="BankName" msprop:SqlDbType="VarChar" minOccurs="0" msprop:SQLTableAlias="o" msprop:maxLength="128" />
              <xs:element name="BatchNumber" msprop:SqlDbType="Int" minOccurs="0" msprop:SQLTableAlias="o" />
              <xs:element name="BillingAddress1" msprop:SqlDbType="VarChar" minOccurs="0" msprop:SQLTableAlias="o" msprop:maxLength="75" />
              <xs:element name="BillingAddress2" msprop:SqlDbType="VarChar" minOccurs="0" msprop:SQLTableAlias="o" msprop:maxLength="75" />
              <xs:element name="BillingCity" msprop:SqlDbType="VarChar" minOccurs="0" msprop:SQLTableAlias="o" msprop:maxLength="45" />
              <xs:element name="BillingCompanyName" msprop:SqlDbType="VarChar" minOccurs="0" msprop:SQLTableAlias="o" msprop:maxLength="100" />

自动生成的C＃类（请注意Object数据类型）

...
    public partial class xmldata
{

    private xmldataOrders[] itemsField;

    /// <remarks/>
    [System.Xml.Serialization.XmlElementAttribute("Orders", Form = System.Xml.Schema.XmlSchemaForm.Unqualified)]
    public xmldataOrders[] Items
    {
        get
        {
            return this.itemsField;
        }
        set
        {
            this.itemsField = value;
        }
    }
}

/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "4.0.30319.33440")]
[System.SerializableAttribute()]
[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.ComponentModel.DesignerCategoryAttribute("code")]
[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public partial class xmldataOrders
{

    private object orderIDField;

    private object accountNumberField;

    private object accountTypeField;

    private object addressValidatedField;

    private object affiliate_Commissionable_ValueField;

    private object authHashField;

    private object aVSField;

    private object bankNameField;

    private object batchNumberField;

    private object billingAddress1Field;

    private object billingAddress2Field;

    private object billingCityField;

    private object billingCompanyNameField;

    private object billingCountryField;

    private object billingFaxNumberField;

    private object billingFirstNameField;
...