public class Container : XmlElementGenerator{ public string projectcode { get; set; } public string projectname { get; set; } public string projectleader { get; set; } public string barcode { get; set; } public string sampleartid { get; set; } public string sampledescription { get; set; } public string remark { get; set; } public DateTime samplingdate { get; set; } public int samplenumber { get; set; } public XmlElement GenerateXMLElement(XmlDocument xmlDocument) { Type containerGenerator = typeof(Container); XmlElement container = ElementChildrenGenerator(xmlDocument, "container"); foreach (PropertyInfo prop in containerGenerator.GetProperties()) { container.AppendChild(ElementChildrenGenerator(xmlDocument, prop.Name, prop.GetValue(this).ToString())); } return container; }}此处出现错误prop.GetValue(this)-“ System.NullReferenceException:对象引用未设置为对象的实例”。为什么我不能使用“ this”来访问对象?我不想再添加一个参数。请帮助
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