.NET调用WebService中数据类型问题，如decimal和DateTime不可用？

[翘楚时代]

在做一个项目，涉及到与ERP系统进行集成，使用到WebService，ERP系统发布了一个WebService服务，在.NET中引用了，但生成的服务中，对于decimal和DateTime不能用，看了下从元数据如下：
[Serializable]
[GeneratedCode("System.Xml", "4.0.30319.1")]
[XmlType(AnonymousType = true, Namespace = "http://xmlns.oracle.com/apps/xxx/soaprovider/plsql/snbc_bpa_oainf_pkg3/deal_bpa/")]
[DebuggerStepThrough]
[DesignerCategory("code")]
public class InputParameters1 : INotifyPropertyChanged
{
public InputParameters1();

[XmlElement(IsNullable = true, Order = 0)]
public string P_BATCH_UUID { get; set; }
[XmlElement(IsNullable = true, Order = 3)]
public string P_BLANKET_NUMBER { get; set; }
[XmlElement(IsNullable = true, Order = 13)]
public string P_CREATOR { get; set; }
[XmlElement(IsNullable = true, Order = 6)]
public string P_CURRENCY_CODE { get; set; }
[XmlElement(IsNullable = true, Order = 12)]
public DateTime? P_END_DATE { get; set; }
[XmlIgnore]
public bool P_END_DATESpecified { get; set; }
[XmlElement(IsNullable = true, Order = 7)]
public string P_ITEM_NUMBER { get; set; }
[XmlElement(IsNullable = true, Order = 10)]
public decimal? P_ITEM_QTY { get; set; }
[XmlIgnore]

调用服务中的方法候，成功，但对于标记有[XmlIgnore]的参数没有传递过去，想问下，这个[XmlIgnore]如何去掉？

[正怒月神]

这个可能对你有点帮助 http://blog.csdn.net/tongyu2009/article/details/7637189

[翘楚时代]

调用服务后生成的XML如下： <InputParameters xmlns="http://xmlns.oracle.com/apps/xxx/soaprovider/plsql/snbc_bpa_oainf_pkg3/deal_bpa/"><P_BATCH_UUID>999999</P_BATCH_UUID><P_LINE_UUID>cd79f2c8-8736-4ead-8a77-4719cf0c7c31</P_LINE_UUID><P_OU_NAME>xxxxxx</P_OU_NAME><P_BLANKET_NUMBER>1103000000424</P_BLANKET_NUMBER><P_VENDOR_NAME>ssssss</P_VENDOR_NAME><P_VENDOR_SITE>原材料</P_VENDOR_SITE><P_CURRENCY_CODE>USD</P_CURRENCY_CODE><P_ITEM_NUMBER>0.5.10.3000018</P_ITEM_NUMBER><P_PRICE_BREAK/><P_CREATOR>aaa</P_CREATOR></InputParameters> 从上面可以看出没有那些DateTime和Decimal的参数。。。。 所以请教大侠，如何解决啊？？？？