NHSREQUEST NULL参考例外

Question

我正在尝试将字符串值分配给Nsrequest个实例，但我得到null reference exception这是与SAP的整合，有什么帮助吗？ NHSREquest的类看起来像这样

[Serializable]
[DebuggerStepThrough]
[DesignerCategory("code")]
[GeneratedCode("System.Xml", "4.6.1080.0")]
[XmlType(Namespace = "urn:com.li.common:objects")]
public class NHSRequest
{
    public NHSRequest();

    [XmlElement(Form = XmlSchemaForm.Unqualified)]
    public NHSRequestNHSDetails NHSDetails { get; set; }
    [XmlElement(Form = XmlSchemaForm.Unqualified)]
    public TechnicalHeader TechnicalHeader { get; set; }
}



NHSRequest locRequest = new NHSRequest();
locRequest.TechnicalHeader.SourceSystem = "Ub";
locRequest.TechnicalHeader.TargetSystem = "DGE0a6";
locRequest.TechnicalHeader.DateTime = DateTime.MinValue;